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videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/backend_metric.h

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+//
+// Copyright 2019 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKEND_METRIC_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKEND_METRIC_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/slice.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy.h"
+#include "src/core/lib/gprpp/arena.h"
+
+namespace grpc_core {
+
+// Parses the serialized load report and allocates a BackendMetricData
+// object on the arena.
+const LoadBalancingPolicy::BackendMetricData* ParseBackendMetricData(
+    const grpc_slice& serialized_load_report, Arena* arena);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKEND_METRIC_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/backup_poller.h

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+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/grpc.h>
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/gprpp/global_config.h"
+
+GPR_GLOBAL_CONFIG_DECLARE_INT32(grpc_client_channel_backup_poll_interval_ms);
+
+/* Initializes backup polling. */
+void grpc_client_channel_global_init_backup_polling();
+
+/* Starts polling \a interested_parties periodically in the timer thread. */
+void grpc_client_channel_start_backup_polling(
+    grpc_pollset_set* interested_parties);
+
+/* Stops polling \a interested_parties. */
+void grpc_client_channel_stop_backup_polling(
+    grpc_pollset_set* interested_parties);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/client_channel.h

@@ -0,0 +1,82 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/client_channel_channelz.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/lib/channel/channel_stack.h"
+
+extern grpc_core::TraceFlag grpc_client_channel_trace;
+
+// Channel arg key for server URI string.
+#define GRPC_ARG_SERVER_URI "grpc.server_uri"
+
+/* A client channel is a channel that begins disconnected, and can connect
+   to some endpoint on demand. If that endpoint disconnects, it will be
+   connected to again later.
+
+   Calls on a disconnected client channel are queued until a connection is
+   established. */
+
+extern const grpc_channel_filter grpc_client_channel_filter;
+
+grpc_connectivity_state grpc_client_channel_check_connectivity_state(
+    grpc_channel_element* elem, int try_to_connect);
+
+int grpc_client_channel_num_external_connectivity_watchers(
+    grpc_channel_element* elem);
+
+// Starts a one-time connectivity state watch.  When the channel's state
+// becomes different from *state, sets *state to the new state and
+// schedules on_complete.  The watcher_timer_init callback is invoked as
+// soon as the watch is actually started (i.e., after hopping into the
+// client channel combiner).  I/O will be serviced via pollent.
+//
+// This is intended to be used when starting a watch from outside of C-core
+// via grpc_channel_watch_connectivity_state().  It should not be used
+// by other callers.
+void grpc_client_channel_watch_connectivity_state(
+    grpc_channel_element* elem, grpc_polling_entity pollent,
+    grpc_connectivity_state* state, grpc_closure* on_complete,
+    grpc_closure* watcher_timer_init);
+
+// Starts and stops a connectivity watch.  The watcher will be initially
+// notified as soon as the state changes from initial_state and then on
+// every subsequent state change until either the watch is stopped or
+// it is notified that the state has changed to SHUTDOWN.
+//
+// This is intended to be used when starting watches from code inside of
+// C-core (e.g., for a nested control plane channel for things like xds).
+void grpc_client_channel_start_connectivity_watch(
+    grpc_channel_element* elem, grpc_connectivity_state initial_state,
+    grpc_core::OrphanablePtr<grpc_core::AsyncConnectivityStateWatcherInterface>
+        watcher);
+void grpc_client_channel_stop_connectivity_watch(
+    grpc_channel_element* elem,
+    grpc_core::AsyncConnectivityStateWatcherInterface* watcher);
+
+/* Debug helper: pull the subchannel call from a call stack element */
+grpc_core::RefCountedPtr<grpc_core::SubchannelCall>
+grpc_client_channel_get_subchannel_call(grpc_call_element* elem);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/client_channel_channelz.h

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+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H
+
+#include <grpc/support/port_platform.h>
+
+#include <string>
+
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_trace.h"
+#include "src/core/lib/channel/channelz.h"
+
+namespace grpc_core {
+
+class Subchannel;
+
+namespace channelz {
+
+class SubchannelNode : public BaseNode {
+ public:
+  SubchannelNode(std::string target_address, size_t channel_tracer_max_nodes);
+  ~SubchannelNode() override;
+
+  // Sets the subchannel's connectivity state without health checking.
+  void UpdateConnectivityState(grpc_connectivity_state state);
+
+  // Used when the subchannel's child socket changes. This should be set when
+  // the subchannel's transport is created and set to nullptr when the
+  // subchannel unrefs the transport.
+  void SetChildSocket(RefCountedPtr<SocketNode> socket);
+
+  grpc_json* RenderJson() override;
+
+  // proxy methods to composed classes.
+  void AddTraceEvent(ChannelTrace::Severity severity, const grpc_slice& data) {
+    trace_.AddTraceEvent(severity, data);
+  }
+  void AddTraceEventWithReference(ChannelTrace::Severity severity,
+                                  const grpc_slice& data,
+                                  RefCountedPtr<BaseNode> referenced_channel) {
+    trace_.AddTraceEventWithReference(severity, data,
+                                      std::move(referenced_channel));
+  }
+  void RecordCallStarted() { call_counter_.RecordCallStarted(); }
+  void RecordCallFailed() { call_counter_.RecordCallFailed(); }
+  void RecordCallSucceeded() { call_counter_.RecordCallSucceeded(); }
+
+ private:
+  void PopulateConnectivityState(grpc_json* json);
+
+  Atomic<grpc_connectivity_state> connectivity_state_{GRPC_CHANNEL_IDLE};
+  Mutex socket_mu_;
+  RefCountedPtr<SocketNode> child_socket_;
+  std::string target_;
+  CallCountingHelper call_counter_;
+  ChannelTrace trace_;
+};
+
+}  // namespace channelz
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_CHANNELZ_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/client_channel_factory.h

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+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/ext/filters/client_channel/subchannel.h"
+
+namespace grpc_core {
+
+class ClientChannelFactory {
+ public:
+  virtual ~ClientChannelFactory() = default;
+
+  // Creates a subchannel with the specified args.
+  virtual Subchannel* CreateSubchannel(const grpc_channel_args* args) = 0;
+
+  // Returns a channel arg containing the specified factory.
+  static grpc_arg CreateChannelArg(ClientChannelFactory* factory);
+
+  // Returns the factory from args, or null if not found.
+  static ClientChannelFactory* GetFromChannelArgs(
+      const grpc_channel_args* args);
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/connector.h

@@ -0,0 +1,79 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/channelz.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/transport/transport.h"
+
+namespace grpc_core {
+
+// Interface for connection-establishment functionality.
+// Each transport that supports client channels (e.g., not inproc) must
+// supply an implementation of this.
+class SubchannelConnector : public InternallyRefCounted<SubchannelConnector> {
+ public:
+  struct Args {
+    // Set of pollsets interested in this connection.
+    grpc_pollset_set* interested_parties;
+    // Deadline for connection.
+    grpc_millis deadline;
+    // Channel args to be passed to handshakers and transport.
+    const grpc_channel_args* channel_args;
+  };
+
+  struct Result {
+    // The connected transport.
+    grpc_transport* transport = nullptr;
+    // Channel args to be passed to filters.
+    const grpc_channel_args* channel_args = nullptr;
+    // Channelz socket node of the connected transport, if any.
+    RefCountedPtr<channelz::SocketNode> socket_node;
+
+    void Reset() {
+      transport = nullptr;
+      channel_args = nullptr;
+      socket_node.reset();
+    }
+  };
+
+  // Attempts to connect.
+  // When complete, populates *result and invokes notify.
+  // Only one connection attempt may be in progress at any one time.
+  virtual void Connect(const Args& args, Result* result,
+                       grpc_closure* notify) = 0;
+
+  // Cancels any in-flight connection attempt and shuts down the
+  // connector.
+  virtual void Shutdown(grpc_error* error) = 0;
+
+  void Orphan() override {
+    Shutdown(GRPC_ERROR_CREATE_FROM_STATIC_STRING("Subchannel disconnected"));
+    Unref();
+  }
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/global_subchannel_pool.h

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+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_GLOBAL_SUBCHANNEL_POOL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_GLOBAL_SUBCHANNEL_POOL_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/subchannel_pool_interface.h"
+
+namespace grpc_core {
+
+// The global subchannel pool. It shares subchannels among channels. There
+// should be only one instance of this class. Init() should be called once at
+// the filter initialization time; Shutdown() should be called once at the
+// filter shutdown time.
+// TODO(juanlishen): Enable subchannel retention.
+class GlobalSubchannelPool final : public SubchannelPoolInterface {
+ public:
+  // The ctor and dtor are not intended to use directly.
+  GlobalSubchannelPool();
+  ~GlobalSubchannelPool() override;
+
+  // Should be called exactly once at filter initialization time.
+  static void Init();
+  // Should be called exactly once at filter shutdown time.
+  static void Shutdown();
+
+  // Gets the singleton instance.
+  static RefCountedPtr<GlobalSubchannelPool> instance();
+
+  // Implements interface methods.
+  Subchannel* RegisterSubchannel(SubchannelKey* key,
+                                 Subchannel* constructed) override;
+  void UnregisterSubchannel(SubchannelKey* key) override;
+  Subchannel* FindSubchannel(SubchannelKey* key) override;
+
+ private:
+  // The singleton instance. (It's a pointer to RefCountedPtr so that this
+  // non-local static object can be trivially destructible.)
+  static RefCountedPtr<GlobalSubchannelPool>* instance_;
+
+  // The vtable for subchannel operations in an AVL tree.
+  static const grpc_avl_vtable subchannel_avl_vtable_;
+  // A map from subchannel key to subchannel.
+  grpc_avl subchannel_map_;
+  // To protect subchannel_map_.
+  gpr_mu mu_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_GLOBAL_SUBCHANNEL_POOL_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/health/health_check_client.h

@@ -0,0 +1,175 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HEALTH_HEALTH_CHECK_CLIENT_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HEALTH_HEALTH_CHECK_CLIENT_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/sync.h>
+
+#include "src/core/ext/filters/client_channel/client_channel_channelz.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
+#include "src/core/lib/backoff/backoff.h"
+#include "src/core/lib/gprpp/arena.h"
+#include "src/core/lib/gprpp/atomic.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/gprpp/sync.h"
+#include "src/core/lib/iomgr/call_combiner.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/transport/byte_stream.h"
+#include "src/core/lib/transport/metadata_batch.h"
+#include "src/core/lib/transport/transport.h"
+
+namespace grpc_core {
+
+class HealthCheckClient : public InternallyRefCounted<HealthCheckClient> {
+ public:
+  HealthCheckClient(const char* service_name,
+                    RefCountedPtr<ConnectedSubchannel> connected_subchannel,
+                    grpc_pollset_set* interested_parties,
+                    RefCountedPtr<channelz::SubchannelNode> channelz_node,
+                    RefCountedPtr<ConnectivityStateWatcherInterface> watcher);
+
+  ~HealthCheckClient();
+
+  void Orphan() override;
+
+ private:
+  // Contains a call to the backend and all the data related to the call.
+  class CallState : public Orphanable {
+   public:
+    CallState(RefCountedPtr<HealthCheckClient> health_check_client,
+              grpc_pollset_set* interested_parties_);
+    ~CallState();
+
+    void Orphan() override;
+
+    void StartCall();
+
+   private:
+    void Cancel();
+
+    void StartBatch(grpc_transport_stream_op_batch* batch);
+    static void StartBatchInCallCombiner(void* arg, grpc_error* error);
+
+    static void CallEndedRetry(void* arg, grpc_error* error);
+    void CallEnded(bool retry);
+
+    static void OnComplete(void* arg, grpc_error* error);
+    static void RecvInitialMetadataReady(void* arg, grpc_error* error);
+    static void RecvMessageReady(void* arg, grpc_error* error);
+    static void RecvTrailingMetadataReady(void* arg, grpc_error* error);
+    static void StartCancel(void* arg, grpc_error* error);
+    static void OnCancelComplete(void* arg, grpc_error* error);
+
+    static void OnByteStreamNext(void* arg, grpc_error* error);
+    void ContinueReadingRecvMessage();
+    grpc_error* PullSliceFromRecvMessage();
+    void DoneReadingRecvMessage(grpc_error* error);
+
+    static void AfterCallStackDestruction(void* arg, grpc_error* error);
+
+    RefCountedPtr<HealthCheckClient> health_check_client_;
+    grpc_polling_entity pollent_;
+
+    Arena* arena_;
+    grpc_core::CallCombiner call_combiner_;
+    grpc_call_context_element context_[GRPC_CONTEXT_COUNT] = {};
+
+    // The streaming call to the backend. Always non-null.
+    // Refs are tracked manually; when the last ref is released, the
+    // CallState object will be automatically destroyed.
+    SubchannelCall* call_;
+
+    grpc_transport_stream_op_batch_payload payload_;
+    grpc_transport_stream_op_batch batch_;
+    grpc_transport_stream_op_batch recv_message_batch_;
+    grpc_transport_stream_op_batch recv_trailing_metadata_batch_;
+
+    grpc_closure on_complete_;
+
+    // send_initial_metadata
+    grpc_metadata_batch send_initial_metadata_;
+    grpc_linked_mdelem path_metadata_storage_;
+
+    // send_message
+    ManualConstructor<SliceBufferByteStream> send_message_;
+
+    // send_trailing_metadata
+    grpc_metadata_batch send_trailing_metadata_;
+
+    // recv_initial_metadata
+    grpc_metadata_batch recv_initial_metadata_;
+    grpc_closure recv_initial_metadata_ready_;
+
+    // recv_message
+    OrphanablePtr<ByteStream> recv_message_;
+    grpc_closure recv_message_ready_;
+    grpc_slice_buffer recv_message_buffer_;
+    Atomic<bool> seen_response_{false};
+
+    // recv_trailing_metadata
+    grpc_metadata_batch recv_trailing_metadata_;
+    grpc_transport_stream_stats collect_stats_;
+    grpc_closure recv_trailing_metadata_ready_;
+
+    // True if the cancel_stream batch has been started.
+    Atomic<bool> cancelled_{false};
+
+    // Closure for call stack destruction.
+    grpc_closure after_call_stack_destruction_;
+  };
+
+  void StartCall();
+  void StartCallLocked();  // Requires holding mu_.
+
+  void StartRetryTimer();
+  static void OnRetryTimer(void* arg, grpc_error* error);
+
+  void SetHealthStatus(grpc_connectivity_state state, const char* reason);
+  void SetHealthStatusLocked(grpc_connectivity_state state,
+                             const char* reason);  // Requires holding mu_.
+
+  const char* service_name_;  // Do not own.
+  RefCountedPtr<ConnectedSubchannel> connected_subchannel_;
+  grpc_pollset_set* interested_parties_;  // Do not own.
+  RefCountedPtr<channelz::SubchannelNode> channelz_node_;
+
+  Mutex mu_;
+  RefCountedPtr<ConnectivityStateWatcherInterface> watcher_;
+  bool shutting_down_ = false;
+
+  // The data associated with the current health check call.  It holds a ref
+  // to this HealthCheckClient object.
+  OrphanablePtr<CallState> call_state_;
+
+  // Call retry state.
+  BackOff retry_backoff_;
+  grpc_timer retry_timer_;
+  grpc_closure retry_timer_callback_;
+  bool retry_timer_callback_pending_ = false;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HEALTH_HEALTH_CHECK_CLIENT_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/http_connect_handshaker.h

@@ -0,0 +1,34 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+
+/// Channel arg indicating the server in HTTP CONNECT request (string).
+/// The presence of this arg triggers the use of HTTP CONNECT.
+#define GRPC_ARG_HTTP_CONNECT_SERVER "grpc.http_connect_server"
+
+/// Channel arg indicating HTTP CONNECT headers (string).
+/// Multiple headers are separated by newlines.  Key/value pairs are
+/// separated by colons.
+#define GRPC_ARG_HTTP_CONNECT_HEADERS "grpc.http_connect_headers"
+
+/// Registers handshaker factory.
+void grpc_http_connect_register_handshaker_factory();
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/http_proxy.h

@@ -0,0 +1,28 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
+
+namespace grpc_core {
+
+void RegisterHttpProxyMapper();
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy.h

@@ -0,0 +1,412 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
+
+#include <grpc/support/port_platform.h>
+
+#include <functional>
+#include <iterator>
+
+#include "src/core/ext/filters/client_channel/server_address.h"
+#include "src/core/ext/filters/client_channel/service_config.h"
+#include "src/core/ext/filters/client_channel/subchannel_interface.h"
+#include "src/core/lib/gprpp/map.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/gprpp/string_view.h"
+#include "src/core/lib/iomgr/combiner.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/transport/connectivity_state.h"
+
+namespace grpc_core {
+
+extern DebugOnlyTraceFlag grpc_trace_lb_policy_refcount;
+
+/// Interface for load balancing policies.
+///
+/// The following concepts are used here:
+///
+/// Channel: An abstraction that manages connections to backend servers
+///   on behalf of a client application.  The application creates a channel
+///   for a given server name and then sends calls (RPCs) on it, and the
+///   channel figures out which backend server to send each call to.  A channel
+///   contains a resolver, a load balancing policy (or a tree of LB policies),
+///   and a set of one or more subchannels.
+///
+/// Subchannel: A subchannel represents a connection to one backend server.
+///   The LB policy decides which subchannels to create, manages the
+///   connectivity state of those subchannels, and decides which subchannel
+///   to send any given call to.
+///
+/// Resolver: A plugin that takes a gRPC server URI and resolves it to a
+///   list of one or more addresses and a service config, as described
+///   in https://github.com/grpc/grpc/blob/master/doc/naming.md.  See
+///   resolver.h for the resolver API.
+///
+/// Load Balancing (LB) Policy: A plugin that takes a list of addresses
+///   from the resolver, maintains and manages a subchannel for each
+///   backend address, and decides which subchannel to send each call on.
+///   An LB policy has two parts:
+///   - A LoadBalancingPolicy, which deals with the control plane work of
+///     managing subchannels.
+///   - A SubchannelPicker, which handles the data plane work of
+///     determining which subchannel a given call should be sent on.
+
+/// LoadBalacingPolicy API.
+///
+/// Note: All methods with a "Locked" suffix must be called from the
+/// combiner passed to the constructor.
+///
+/// Any I/O done by the LB policy should be done under the pollset_set
+/// returned by \a interested_parties().
+// TODO(roth): Once we move to EventManager-based polling, remove the
+// interested_parties() hooks from the API.
+class LoadBalancingPolicy : public InternallyRefCounted<LoadBalancingPolicy> {
+ public:
+  // Represents backend metrics reported by the backend to the client.
+  struct BackendMetricData {
+    /// CPU utilization expressed as a fraction of available CPU resources.
+    double cpu_utilization;
+    /// Memory utilization expressed as a fraction of available memory
+    /// resources.
+    double mem_utilization;
+    /// Total requests per second being served by the backend.  This
+    /// should include all services that a backend is responsible for.
+    uint64_t requests_per_second;
+    /// Application-specific requests cost metrics.  Metric names are
+    /// determined by the application.  Each value is an absolute cost
+    /// (e.g. 3487 bytes of storage) associated with the request.
+    std::map<StringView, double, StringLess> request_cost;
+    /// Application-specific resource utilization metrics.  Metric names
+    /// are determined by the application.  Each value is expressed as a
+    /// fraction of total resources available.
+    std::map<StringView, double, StringLess> utilization;
+  };
+
+  /// Interface for accessing per-call state.
+  /// Implemented by the client channel and used by the SubchannelPicker.
+  class CallState {
+   public:
+    CallState() = default;
+    virtual ~CallState() = default;
+
+    /// Allocates memory associated with the call, which will be
+    /// automatically freed when the call is complete.
+    /// It is more efficient to use this than to allocate memory directly
+    /// for allocations that need to be made on a per-call basis.
+    virtual void* Alloc(size_t size) = 0;
+
+    /// Returns the backend metric data returned by the server for the call,
+    /// or null if no backend metric data was returned.
+    virtual const BackendMetricData* GetBackendMetricData() = 0;
+  };
+
+  /// Interface for accessing metadata.
+  /// Implemented by the client channel and used by the SubchannelPicker.
+  class MetadataInterface {
+   public:
+    class iterator
+        : public std::iterator<std::input_iterator_tag,
+                               std::pair<StringView, StringView>,  // value_type
+                               std::ptrdiff_t,  // difference_type
+                               std::pair<StringView, StringView>*,  // pointer
+                               std::pair<StringView, StringView>&   // reference
+                               > {
+     public:
+      iterator(const MetadataInterface* md, intptr_t handle)
+          : md_(md), handle_(handle) {}
+      iterator& operator++() {
+        handle_ = md_->IteratorHandleNext(handle_);
+        return *this;
+      }
+      bool operator==(iterator other) const {
+        return md_ == other.md_ && handle_ == other.handle_;
+      }
+      bool operator!=(iterator other) const { return !(*this == other); }
+      value_type operator*() const { return md_->IteratorHandleGet(handle_); }
+
+     private:
+      friend class MetadataInterface;
+      const MetadataInterface* md_;
+      intptr_t handle_;
+    };
+
+    virtual ~MetadataInterface() = default;
+
+    /// Adds a key/value pair.
+    /// Does NOT take ownership of \a key or \a value.
+    /// Implementations must ensure that the key and value remain alive
+    /// until the call ends.  If desired, they may be allocated via
+    /// CallState::Alloc().
+    virtual void Add(StringView key, StringView value) = 0;
+
+    /// Iteration interface.
+    virtual iterator begin() const = 0;
+    virtual iterator end() const = 0;
+
+    /// Removes the element pointed to by \a it.
+    /// Returns an iterator pointing to the next element.
+    virtual iterator erase(iterator it) = 0;
+
+   protected:
+    intptr_t GetIteratorHandle(const iterator& it) const { return it.handle_; }
+
+   private:
+    friend class iterator;
+
+    virtual intptr_t IteratorHandleNext(intptr_t handle) const = 0;
+    virtual std::pair<StringView /*key*/, StringView /*value */>
+    IteratorHandleGet(intptr_t handle) const = 0;
+  };
+
+  /// Arguments used when picking a subchannel for a call.
+  struct PickArgs {
+    /// Initial metadata associated with the picking call.
+    /// The LB policy may use the existing metadata to influence its routing
+    /// decision, and it may add new metadata elements to be sent with the
+    /// call to the chosen backend.
+    MetadataInterface* initial_metadata;
+    /// An interface for accessing call state.  Can be used to allocate
+    /// data associated with the call in an efficient way.
+    CallState* call_state;
+  };
+
+  /// The result of picking a subchannel for a call.
+  struct PickResult {
+    enum ResultType {
+      /// Pick complete.  If \a subchannel is non-null, the client channel
+      /// will immediately proceed with the call on that subchannel;
+      /// otherwise, it will drop the call.
+      PICK_COMPLETE,
+      /// Pick cannot be completed until something changes on the control
+      /// plane.  The client channel will queue the pick and try again the
+      /// next time the picker is updated.
+      PICK_QUEUE,
+      /// Pick failed.  If the call is wait_for_ready, the client channel
+      /// will wait for the next picker and try again; otherwise, it
+      /// will immediately fail the call with the status indicated via
+      /// \a error (although the call may be retried if the client channel
+      /// is configured to do so).
+      PICK_FAILED,
+    };
+    ResultType type;
+
+    /// Used only if type is PICK_COMPLETE.  Will be set to the selected
+    /// subchannel, or nullptr if the LB policy decides to drop the call.
+    RefCountedPtr<SubchannelInterface> subchannel;
+
+    /// Used only if type is PICK_FAILED.
+    /// Error to be set when returning a failure.
+    // TODO(roth): Replace this with something similar to grpc::Status,
+    // so that we don't expose grpc_error to this API.
+    grpc_error* error = GRPC_ERROR_NONE;
+
+    /// Used only if type is PICK_COMPLETE.
+    /// Callback set by LB policy to be notified of trailing metadata.
+    /// If set by LB policy, the client channel will invoke the callback
+    /// when trailing metadata is returned.
+    /// The metadata may be modified by the callback.  However, the callback
+    /// does not take ownership, so any data that needs to be used after
+    /// returning must be copied.
+    /// The call state can be used to obtain backend metric data.
+    std::function<void(grpc_error*, MetadataInterface*, CallState*)>
+        recv_trailing_metadata_ready;
+  };
+
+  /// A subchannel picker is the object used to pick the subchannel to
+  /// use for a given call.  This is implemented by the LB policy and
+  /// used by the client channel to perform picks.
+  ///
+  /// Pickers are intended to encapsulate all of the state and logic
+  /// needed on the data plane (i.e., to actually process picks for
+  /// individual calls sent on the channel) while excluding all of the
+  /// state and logic needed on the control plane (i.e., resolver
+  /// updates, connectivity state notifications, etc); the latter should
+  /// live in the LB policy object itself.
+  ///
+  /// Currently, pickers are always accessed from within the
+  /// client_channel data plane combiner, so they do not have to be
+  /// thread-safe.
+  class SubchannelPicker {
+   public:
+    SubchannelPicker() = default;
+    virtual ~SubchannelPicker() = default;
+
+    virtual PickResult Pick(PickArgs args) = 0;
+  };
+
+  /// A proxy object implemented by the client channel and used by the
+  /// LB policy to communicate with the channel.
+  // TODO(juanlishen): Consider adding a mid-layer subclass that helps handle
+  // things like swapping in pending policy when it's ready. Currently, we are
+  // duplicating the logic in many subclasses.
+  class ChannelControlHelper {
+   public:
+    ChannelControlHelper() = default;
+    virtual ~ChannelControlHelper() = default;
+
+    /// Creates a new subchannel with the specified channel args.
+    virtual RefCountedPtr<SubchannelInterface> CreateSubchannel(
+        const grpc_channel_args& args) = 0;
+
+    /// Sets the connectivity state and returns a new picker to be used
+    /// by the client channel.
+    virtual void UpdateState(grpc_connectivity_state state,
+                             std::unique_ptr<SubchannelPicker>) = 0;
+
+    /// Requests that the resolver re-resolve.
+    virtual void RequestReresolution() = 0;
+
+    /// Adds a trace message associated with the channel.
+    enum TraceSeverity { TRACE_INFO, TRACE_WARNING, TRACE_ERROR };
+    virtual void AddTraceEvent(TraceSeverity severity, StringView message) = 0;
+  };
+
+  /// Interface for configuration data used by an LB policy implementation.
+  /// Individual implementations will create a subclass that adds methods to
+  /// return the parameters they need.
+  class Config : public RefCounted<Config> {
+   public:
+    virtual ~Config() = default;
+
+    // Returns the load balancing policy name
+    virtual const char* name() const = 0;
+  };
+
+  /// Data passed to the UpdateLocked() method when new addresses and
+  /// config are available.
+  struct UpdateArgs {
+    ServerAddressList addresses;
+    RefCountedPtr<Config> config;
+    const grpc_channel_args* args = nullptr;
+
+    // TODO(roth): Remove everything below once channel args is
+    // converted to a copyable and movable C++ object.
+    UpdateArgs() = default;
+    ~UpdateArgs() { grpc_channel_args_destroy(args); }
+    UpdateArgs(const UpdateArgs& other);
+    UpdateArgs(UpdateArgs&& other);
+    UpdateArgs& operator=(const UpdateArgs& other);
+    UpdateArgs& operator=(UpdateArgs&& other);
+  };
+
+  /// Args used to instantiate an LB policy.
+  struct Args {
+    /// The combiner under which all LB policy calls will be run.
+    /// Policy does NOT take ownership of the reference to the combiner.
+    // TODO(roth): Once we have a C++-like interface for combiners, this
+    // API should change to take a smart pointer that does pass ownership
+    // of a reference.
+    Combiner* combiner = nullptr;
+    /// Channel control helper.
+    /// Note: LB policies MUST NOT call any method on the helper from
+    /// their constructor.
+    std::unique_ptr<ChannelControlHelper> channel_control_helper;
+    /// Channel args.
+    // TODO(roth): Find a better channel args representation for this API.
+    // TODO(roth): Clarify ownership semantics here -- currently, this
+    // does not take ownership of args, which is the opposite of how we
+    // handle them in UpdateArgs.
+    const grpc_channel_args* args = nullptr;
+  };
+
+  explicit LoadBalancingPolicy(Args args, intptr_t initial_refcount = 1);
+  virtual ~LoadBalancingPolicy();
+
+  // Not copyable nor movable.
+  LoadBalancingPolicy(const LoadBalancingPolicy&) = delete;
+  LoadBalancingPolicy& operator=(const LoadBalancingPolicy&) = delete;
+
+  /// Returns the name of the LB policy.
+  virtual const char* name() const = 0;
+
+  /// Updates the policy with new data from the resolver.  Will be invoked
+  /// immediately after LB policy is constructed, and then again whenever
+  /// the resolver returns a new result.
+  virtual void UpdateLocked(UpdateArgs) = 0;  // NOLINT
+
+  /// Tries to enter a READY connectivity state.
+  /// This is a no-op by default, since most LB policies never go into
+  /// IDLE state.
+  virtual void ExitIdleLocked() {}
+
+  /// Resets connection backoff.
+  virtual void ResetBackoffLocked() = 0;
+
+  grpc_pollset_set* interested_parties() const { return interested_parties_; }
+
+  // Note: This must be invoked while holding the combiner.
+  void Orphan() override;
+
+  // A picker that returns PICK_QUEUE for all picks.
+  // Also calls the parent LB policy's ExitIdleLocked() method when the
+  // first pick is seen.
+  class QueuePicker : public SubchannelPicker {
+   public:
+    explicit QueuePicker(RefCountedPtr<LoadBalancingPolicy> parent)
+        : parent_(std::move(parent)) {}
+
+    ~QueuePicker() { parent_.reset(DEBUG_LOCATION, "QueuePicker"); }
+
+    PickResult Pick(PickArgs args) override;
+
+   private:
+    static void CallExitIdle(void* arg, grpc_error* error);
+
+    RefCountedPtr<LoadBalancingPolicy> parent_;
+    bool exit_idle_called_ = false;
+  };
+
+  // A picker that returns PICK_TRANSIENT_FAILURE for all picks.
+  class TransientFailurePicker : public SubchannelPicker {
+   public:
+    explicit TransientFailurePicker(grpc_error* error) : error_(error) {}
+    ~TransientFailurePicker() override { GRPC_ERROR_UNREF(error_); }
+
+    PickResult Pick(PickArgs args) override;
+
+   private:
+    grpc_error* error_;
+  };
+
+ protected:
+  Combiner* combiner() const { return combiner_; }
+
+  // Note: LB policies MUST NOT call any method on the helper from their
+  // constructor.
+  ChannelControlHelper* channel_control_helper() const {
+    return channel_control_helper_.get();
+  }
+
+  /// Shuts down the policy.
+  virtual void ShutdownLocked() = 0;
+
+ private:
+  /// Combiner under which LB policy actions take place.
+  Combiner* combiner_;
+  /// Owned pointer to interested parties in load balancing decisions.
+  grpc_pollset_set* interested_parties_;
+  /// Channel control helper.
+  std::unique_ptr<ChannelControlHelper> channel_control_helper_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.h

@@ -0,0 +1,29 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_CLIENT_LOAD_REPORTING_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_CLIENT_LOAD_REPORTING_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+
+extern const grpc_channel_filter grpc_client_load_reporting_filter;
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_CLIENT_LOAD_REPORTING_FILTER_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h

@@ -0,0 +1,43 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
+
+#include <grpc/support/port_platform.h>
+
+/** Channel arg indicating if a target corresponding to the address is grpclb
+ * loadbalancer. The type of this arg is an integer and the value is treated as
+ * a bool. */
+#define GRPC_ARG_ADDRESS_IS_GRPCLB_LOAD_BALANCER \
+  "grpc.address_is_grpclb_load_balancer"
+/** Channel arg indicating if a target corresponding to the address is a backend
+ * received from a balancer. The type of this arg is an integer and the value is
+ * treated as a bool. */
+#define GRPC_ARG_ADDRESS_IS_BACKEND_FROM_GRPCLB_LOAD_BALANCER \
+  "grpc.address_is_backend_from_grpclb_load_balancer"
+
+namespace grpc_core {
+
+extern const char kGrpcLbClientStatsMetadataKey[];
+extern const char kGrpcLbLbTokenMetadataKey[];
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h

@@ -0,0 +1,45 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/ext/filters/client_channel/server_address.h"
+
+namespace grpc_core {
+
+/// Makes any necessary modifications to \a args for use in the grpclb
+/// balancer channel.
+///
+/// Takes ownership of \a args.
+///
+/// Caller takes ownership of the returned args.
+grpc_channel_args* ModifyGrpclbBalancerChannelArgs(
+    const ServerAddressList& addresses, grpc_channel_args* args);
+
+grpc_channel* CreateGrpclbBalancerChannel(const char* target_uri,
+                                          const grpc_channel_args& args);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h

@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/support/atm.h>
+
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/sync.h"
+
+namespace grpc_core {
+
+class GrpcLbClientStats : public RefCounted<GrpcLbClientStats> {
+ public:
+  struct DropTokenCount {
+    grpc_core::UniquePtr<char> token;
+    int64_t count;
+
+    DropTokenCount(grpc_core::UniquePtr<char> token, int64_t count)
+        : token(std::move(token)), count(count) {}
+  };
+
+  typedef InlinedVector<DropTokenCount, 10> DroppedCallCounts;
+
+  void AddCallStarted();
+  void AddCallFinished(bool finished_with_client_failed_to_send,
+                       bool finished_known_received);
+
+  void AddCallDropped(const char* token);
+
+  void Get(int64_t* num_calls_started, int64_t* num_calls_finished,
+           int64_t* num_calls_finished_with_client_failed_to_send,
+           int64_t* num_calls_finished_known_received,
+           std::unique_ptr<DroppedCallCounts>* drop_token_counts);
+
+  // A destruction function to use as the user_data key when attaching
+  // client stats to a grpc_mdelem.
+  static void Destroy(void* arg) {
+    static_cast<GrpcLbClientStats*>(arg)->Unref();
+  }
+
+ private:
+  gpr_atm num_calls_started_ = 0;
+  gpr_atm num_calls_finished_ = 0;
+  gpr_atm num_calls_finished_with_client_failed_to_send_ = 0;
+  gpr_atm num_calls_finished_known_received_ = 0;
+  Mutex drop_count_mu_;  // Guards drop_token_counts_.
+  std::unique_ptr<DroppedCallCounts> drop_token_counts_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h

@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+
+#include <grpc/support/port_platform.h>
+
+#include <vector>
+
+#include <grpc/slice_buffer.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/proto/grpc/lb/v1/load_balancer.upb.h"
+
+#define GRPC_GRPCLB_SERVICE_NAME_MAX_LENGTH 128
+#define GRPC_GRPCLB_SERVER_IP_ADDRESS_MAX_SIZE 16
+#define GRPC_GRPCLB_SERVER_LOAD_BALANCE_TOKEN_MAX_SIZE 50
+
+namespace grpc_core {
+
+// Contains server information. When the drop field is not true, use the other
+// fields.
+struct GrpcLbServer {
+  int32_t ip_size;
+  char ip_addr[GRPC_GRPCLB_SERVER_IP_ADDRESS_MAX_SIZE];
+  int32_t port;
+  char load_balance_token[GRPC_GRPCLB_SERVER_LOAD_BALANCE_TOKEN_MAX_SIZE];
+  bool drop;
+
+  bool operator==(const GrpcLbServer& other) const;
+};
+
+struct GrpcLbResponse {
+  enum { INITIAL, SERVERLIST, FALLBACK } type;
+  grpc_millis client_stats_report_interval = 0;
+  std::vector<GrpcLbServer> serverlist;
+};
+
+// Creates a serialized grpclb request.
+grpc_slice GrpcLbRequestCreate(const char* lb_service_name, upb_arena* arena);
+
+// Creates a serialized grpclb load report request.
+grpc_slice GrpcLbLoadReportRequestCreate(
+    int64_t num_calls_started, int64_t num_calls_finished,
+    int64_t num_calls_finished_with_client_failed_to_send,
+    int64_t num_calls_finished_known_received,
+    const GrpcLbClientStats::DroppedCallCounts* drop_token_counts,
+    upb_arena* arena);
+
+// Deserialize a grpclb response.
+bool GrpcLbResponseParse(const grpc_slice& serialized_response,
+                         upb_arena* arena, GrpcLbResponse* response);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h

@@ -0,0 +1,454 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H
+
+#include <grpc/support/port_platform.h>
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/server_address.h"
+// TODO(roth): Should not need the include of subchannel.h here, since
+// that implementation should be hidden from the LB policy API.
+#include "src/core/ext/filters/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel_interface.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/transport/connectivity_state.h"
+
+// Code for maintaining a list of subchannels within an LB policy.
+//
+// To use this, callers must create their own subclasses, like so:
+/*
+
+class MySubchannelList;  // Forward declaration.
+
+class MySubchannelData
+    : public SubchannelData<MySubchannelList, MySubchannelData> {
+ public:
+  void ProcessConnectivityChangeLocked(
+      grpc_connectivity_state connectivity_state) override {
+    // ...code to handle connectivity changes...
+  }
+};
+
+class MySubchannelList
+    : public SubchannelList<MySubchannelList, MySubchannelData> {
+};
+
+*/
+// All methods will be called from within the client_channel combiner.
+
+namespace grpc_core {
+
+// Forward declaration.
+template <typename SubchannelListType, typename SubchannelDataType>
+class SubchannelList;
+
+// Stores data for a particular subchannel in a subchannel list.
+// Callers must create a subclass that implements the
+// ProcessConnectivityChangeLocked() method.
+template <typename SubchannelListType, typename SubchannelDataType>
+class SubchannelData {
+ public:
+  // Returns a pointer to the subchannel list containing this object.
+  SubchannelListType* subchannel_list() const {
+    return static_cast<SubchannelListType*>(subchannel_list_);
+  }
+
+  // Returns the index into the subchannel list of this object.
+  size_t Index() const {
+    return static_cast<size_t>(static_cast<const SubchannelDataType*>(this) -
+                               subchannel_list_->subchannel(0));
+  }
+
+  // Returns a pointer to the subchannel.
+  SubchannelInterface* subchannel() const { return subchannel_.get(); }
+
+  // Synchronously checks the subchannel's connectivity state.
+  // Must not be called while there is a connectivity notification
+  // pending (i.e., between calling StartConnectivityWatchLocked() and
+  // calling CancelConnectivityWatchLocked()).
+  grpc_connectivity_state CheckConnectivityStateLocked() {
+    GPR_ASSERT(pending_watcher_ == nullptr);
+    connectivity_state_ = subchannel_->CheckConnectivityState();
+    return connectivity_state_;
+  }
+
+  // Resets the connection backoff.
+  // TODO(roth): This method should go away when we move the backoff
+  // code out of the subchannel and into the LB policies.
+  void ResetBackoffLocked();
+
+  // Starts watching the connectivity state of the subchannel.
+  // ProcessConnectivityChangeLocked() will be called whenever the
+  // connectivity state changes.
+  void StartConnectivityWatchLocked();
+
+  // Cancels watching the connectivity state of the subchannel.
+  void CancelConnectivityWatchLocked(const char* reason);
+
+  // Cancels any pending connectivity watch and unrefs the subchannel.
+  void ShutdownLocked();
+
+ protected:
+  SubchannelData(
+      SubchannelList<SubchannelListType, SubchannelDataType>* subchannel_list,
+      const ServerAddress& address,
+      RefCountedPtr<SubchannelInterface> subchannel);
+
+  virtual ~SubchannelData();
+
+  // After StartConnectivityWatchLocked() is called, this method will be
+  // invoked whenever the subchannel's connectivity state changes.
+  // To stop watching, use CancelConnectivityWatchLocked().
+  virtual void ProcessConnectivityChangeLocked(
+      grpc_connectivity_state connectivity_state) = 0;
+
+ private:
+  // Watcher for subchannel connectivity state.
+  class Watcher
+      : public SubchannelInterface::ConnectivityStateWatcherInterface {
+   public:
+    Watcher(
+        SubchannelData<SubchannelListType, SubchannelDataType>* subchannel_data,
+        RefCountedPtr<SubchannelListType> subchannel_list)
+        : subchannel_data_(subchannel_data),
+          subchannel_list_(std::move(subchannel_list)) {}
+
+    ~Watcher() { subchannel_list_.reset(DEBUG_LOCATION, "Watcher dtor"); }
+
+    void OnConnectivityStateChange(grpc_connectivity_state new_state) override;
+
+    grpc_pollset_set* interested_parties() override {
+      return subchannel_list_->policy()->interested_parties();
+    }
+
+   private:
+    SubchannelData<SubchannelListType, SubchannelDataType>* subchannel_data_;
+    RefCountedPtr<SubchannelListType> subchannel_list_;
+  };
+
+  // Unrefs the subchannel.
+  void UnrefSubchannelLocked(const char* reason);
+
+  // Backpointer to owning subchannel list.  Not owned.
+  SubchannelList<SubchannelListType, SubchannelDataType>* subchannel_list_;
+  // The subchannel.
+  RefCountedPtr<SubchannelInterface> subchannel_;
+  // Will be non-null when the subchannel's state is being watched.
+  SubchannelInterface::ConnectivityStateWatcherInterface* pending_watcher_ =
+      nullptr;
+  // Data updated by the watcher.
+  grpc_connectivity_state connectivity_state_;
+};
+
+// A list of subchannels.
+template <typename SubchannelListType, typename SubchannelDataType>
+class SubchannelList : public InternallyRefCounted<SubchannelListType> {
+ public:
+  typedef InlinedVector<SubchannelDataType, 10> SubchannelVector;
+
+  // The number of subchannels in the list.
+  size_t num_subchannels() const { return subchannels_.size(); }
+
+  // The data for the subchannel at a particular index.
+  SubchannelDataType* subchannel(size_t index) { return &subchannels_[index]; }
+
+  // Returns true if the subchannel list is shutting down.
+  bool shutting_down() const { return shutting_down_; }
+
+  // Accessors.
+  LoadBalancingPolicy* policy() const { return policy_; }
+  TraceFlag* tracer() const { return tracer_; }
+
+  // Resets connection backoff of all subchannels.
+  // TODO(roth): We will probably need to rethink this as part of moving
+  // the backoff code out of subchannels and into LB policies.
+  void ResetBackoffLocked();
+
+  void Orphan() override {
+    ShutdownLocked();
+    InternallyRefCounted<SubchannelListType>::Unref(DEBUG_LOCATION, "shutdown");
+  }
+
+ protected:
+  SubchannelList(LoadBalancingPolicy* policy, TraceFlag* tracer,
+                 const ServerAddressList& addresses,
+                 LoadBalancingPolicy::ChannelControlHelper* helper,
+                 const grpc_channel_args& args);
+
+  virtual ~SubchannelList();
+
+ private:
+  // For accessing Ref() and Unref().
+  friend class SubchannelData<SubchannelListType, SubchannelDataType>;
+
+  void ShutdownLocked();
+
+  // Backpointer to owning policy.
+  LoadBalancingPolicy* policy_;
+
+  TraceFlag* tracer_;
+
+  // The list of subchannels.
+  SubchannelVector subchannels_;
+
+  // Is this list shutting down? This may be true due to the shutdown of the
+  // policy itself or because a newer update has arrived while this one hadn't
+  // finished processing.
+  bool shutting_down_ = false;
+};
+
+//
+// implementation -- no user-servicable parts below
+//
+
+//
+// SubchannelData::Watcher
+//
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType, SubchannelDataType>::Watcher::
+    OnConnectivityStateChange(grpc_connectivity_state new_state) {
+  if (GRPC_TRACE_FLAG_ENABLED(*subchannel_list_->tracer())) {
+    gpr_log(GPR_INFO,
+            "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR
+            " (subchannel %p): connectivity changed: state=%s, "
+            "shutting_down=%d, pending_watcher=%p",
+            subchannel_list_->tracer()->name(), subchannel_list_->policy(),
+            subchannel_list_.get(), subchannel_data_->Index(),
+            subchannel_list_->num_subchannels(),
+            subchannel_data_->subchannel_.get(),
+            ConnectivityStateName(new_state), subchannel_list_->shutting_down(),
+            subchannel_data_->pending_watcher_);
+  }
+  if (!subchannel_list_->shutting_down() &&
+      subchannel_data_->pending_watcher_ != nullptr) {
+    subchannel_data_->connectivity_state_ = new_state;
+    // Call the subclass's ProcessConnectivityChangeLocked() method.
+    subchannel_data_->ProcessConnectivityChangeLocked(new_state);
+  }
+}
+
+//
+// SubchannelData
+//
+
+template <typename SubchannelListType, typename SubchannelDataType>
+SubchannelData<SubchannelListType, SubchannelDataType>::SubchannelData(
+    SubchannelList<SubchannelListType, SubchannelDataType>* subchannel_list,
+    const ServerAddress& /*address*/,
+    RefCountedPtr<SubchannelInterface> subchannel)
+    : subchannel_list_(subchannel_list),
+      subchannel_(std::move(subchannel)),
+      // We assume that the current state is IDLE.  If not, we'll get a
+      // callback telling us that.
+      connectivity_state_(GRPC_CHANNEL_IDLE) {}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+SubchannelData<SubchannelListType, SubchannelDataType>::~SubchannelData() {
+  GPR_ASSERT(subchannel_ == nullptr);
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType, SubchannelDataType>::
+    UnrefSubchannelLocked(const char* reason) {
+  if (subchannel_ != nullptr) {
+    if (GRPC_TRACE_FLAG_ENABLED(*subchannel_list_->tracer())) {
+      gpr_log(GPR_INFO,
+              "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR
+              " (subchannel %p): unreffing subchannel (%s)",
+              subchannel_list_->tracer()->name(), subchannel_list_->policy(),
+              subchannel_list_, Index(), subchannel_list_->num_subchannels(),
+              subchannel_.get(), reason);
+    }
+    subchannel_.reset();
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType,
+                    SubchannelDataType>::ResetBackoffLocked() {
+  if (subchannel_ != nullptr) {
+    subchannel_->ResetBackoff();
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType,
+                    SubchannelDataType>::StartConnectivityWatchLocked() {
+  if (GRPC_TRACE_FLAG_ENABLED(*subchannel_list_->tracer())) {
+    gpr_log(GPR_INFO,
+            "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR
+            " (subchannel %p): starting watch (from %s)",
+            subchannel_list_->tracer()->name(), subchannel_list_->policy(),
+            subchannel_list_, Index(), subchannel_list_->num_subchannels(),
+            subchannel_.get(), ConnectivityStateName(connectivity_state_));
+  }
+  GPR_ASSERT(pending_watcher_ == nullptr);
+  pending_watcher_ =
+      new Watcher(this, subchannel_list()->Ref(DEBUG_LOCATION, "Watcher"));
+  subchannel_->WatchConnectivityState(
+      connectivity_state_,
+      std::unique_ptr<SubchannelInterface::ConnectivityStateWatcherInterface>(
+          pending_watcher_));
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType, SubchannelDataType>::
+    CancelConnectivityWatchLocked(const char* reason) {
+  if (GRPC_TRACE_FLAG_ENABLED(*subchannel_list_->tracer())) {
+    gpr_log(GPR_INFO,
+            "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR
+            " (subchannel %p): canceling connectivity watch (%s)",
+            subchannel_list_->tracer()->name(), subchannel_list_->policy(),
+            subchannel_list_, Index(), subchannel_list_->num_subchannels(),
+            subchannel_.get(), reason);
+  }
+  if (pending_watcher_ != nullptr) {
+    subchannel_->CancelConnectivityStateWatch(pending_watcher_);
+    pending_watcher_ = nullptr;
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelData<SubchannelListType, SubchannelDataType>::ShutdownLocked() {
+  if (pending_watcher_ != nullptr) CancelConnectivityWatchLocked("shutdown");
+  UnrefSubchannelLocked("shutdown");
+}
+
+//
+// SubchannelList
+//
+
+template <typename SubchannelListType, typename SubchannelDataType>
+SubchannelList<SubchannelListType, SubchannelDataType>::SubchannelList(
+    LoadBalancingPolicy* policy, TraceFlag* tracer,
+    const ServerAddressList& addresses,
+    LoadBalancingPolicy::ChannelControlHelper* helper,
+    const grpc_channel_args& args)
+    : InternallyRefCounted<SubchannelListType>(tracer),
+      policy_(policy),
+      tracer_(tracer) {
+  if (GRPC_TRACE_FLAG_ENABLED(*tracer_)) {
+    gpr_log(GPR_INFO,
+            "[%s %p] Creating subchannel list %p for %" PRIuPTR " subchannels",
+            tracer_->name(), policy, this, addresses.size());
+  }
+  subchannels_.reserve(addresses.size());
+  // We need to remove the LB addresses in order to be able to compare the
+  // subchannel keys of subchannels from a different batch of addresses.
+  // We remove the service config, since it will be passed into the
+  // subchannel via call context.
+  static const char* keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS,
+                                         GRPC_ARG_SERVICE_CONFIG};
+  // Create a subchannel for each address.
+  for (size_t i = 0; i < addresses.size(); i++) {
+    // TODO(roth): we should ideally hide this from the LB policy code. In
+    // principle, if we're dealing with this special case in the client_channel
+    // code for selecting grpclb, then we should also strip out these addresses
+    // there if we're not using grpclb.
+    if (addresses[i].IsBalancer()) {
+      continue;
+    }
+    InlinedVector<grpc_arg, 3> args_to_add;
+    const size_t subchannel_address_arg_index = args_to_add.size();
+    args_to_add.emplace_back(
+        Subchannel::CreateSubchannelAddressArg(&addresses[i].address()));
+    if (addresses[i].args() != nullptr) {
+      for (size_t j = 0; j < addresses[i].args()->num_args; ++j) {
+        args_to_add.emplace_back(addresses[i].args()->args[j]);
+      }
+    }
+    grpc_channel_args* new_args = grpc_channel_args_copy_and_add_and_remove(
+        &args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove),
+        args_to_add.data(), args_to_add.size());
+    gpr_free(args_to_add[subchannel_address_arg_index].value.string);
+    RefCountedPtr<SubchannelInterface> subchannel =
+        helper->CreateSubchannel(*new_args);
+    grpc_channel_args_destroy(new_args);
+    if (subchannel == nullptr) {
+      // Subchannel could not be created.
+      if (GRPC_TRACE_FLAG_ENABLED(*tracer_)) {
+        char* address_uri = grpc_sockaddr_to_uri(&addresses[i].address());
+        gpr_log(GPR_INFO,
+                "[%s %p] could not create subchannel for address uri %s, "
+                "ignoring",
+                tracer_->name(), policy_, address_uri);
+        gpr_free(address_uri);
+      }
+      continue;
+    }
+    if (GRPC_TRACE_FLAG_ENABLED(*tracer_)) {
+      char* address_uri = grpc_sockaddr_to_uri(&addresses[i].address());
+      gpr_log(GPR_INFO,
+              "[%s %p] subchannel list %p index %" PRIuPTR
+              ": Created subchannel %p for address uri %s",
+              tracer_->name(), policy_, this, subchannels_.size(),
+              subchannel.get(), address_uri);
+      gpr_free(address_uri);
+    }
+    subchannels_.emplace_back(this, addresses[i], std::move(subchannel));
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+SubchannelList<SubchannelListType, SubchannelDataType>::~SubchannelList() {
+  if (GRPC_TRACE_FLAG_ENABLED(*tracer_)) {
+    gpr_log(GPR_INFO, "[%s %p] Destroying subchannel_list %p", tracer_->name(),
+            policy_, this);
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelList<SubchannelListType, SubchannelDataType>::ShutdownLocked() {
+  if (GRPC_TRACE_FLAG_ENABLED(*tracer_)) {
+    gpr_log(GPR_INFO, "[%s %p] Shutting down subchannel_list %p",
+            tracer_->name(), policy_, this);
+  }
+  GPR_ASSERT(!shutting_down_);
+  shutting_down_ = true;
+  for (size_t i = 0; i < subchannels_.size(); i++) {
+    SubchannelDataType* sd = &subchannels_[i];
+    sd->ShutdownLocked();
+  }
+}
+
+template <typename SubchannelListType, typename SubchannelDataType>
+void SubchannelList<SubchannelListType,
+                    SubchannelDataType>::ResetBackoffLocked() {
+  for (size_t i = 0; i < subchannels_.size(); i++) {
+    SubchannelDataType* sd = &subchannels_[i];
+    sd->ResetBackoffLocked();
+  }
+}
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy/xds/xds.h

@@ -0,0 +1,33 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_H
+
+#include <grpc/support/port_platform.h>
+
+/** Channel arg indicating if a target corresponding to the address is a backend
+ * received from a balancer. The type of this arg is an integer and the value is
+ * treated as a bool. */
+// TODO(roth): Depending on how we ultimately decide to handle fallback,
+// this may no longer be needed.
+#define GRPC_ARG_ADDRESS_IS_BACKEND_FROM_XDS_LOAD_BALANCER \
+  "grpc.address_is_backend_from_xds_load_balancer"
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_XDS_XDS_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy_factory.h

@@ -0,0 +1,47 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy.h"
+#include "src/core/lib/gprpp/orphanable.h"
+
+namespace grpc_core {
+
+class LoadBalancingPolicyFactory {
+ public:
+  /// Returns a new LB policy instance.
+  virtual OrphanablePtr<LoadBalancingPolicy> CreateLoadBalancingPolicy(
+      LoadBalancingPolicy::Args) const = 0;
+
+  /// Returns the LB policy name that this factory provides.
+  /// Caller does NOT take ownership of result.
+  virtual const char* name() const = 0;
+
+  virtual RefCountedPtr<LoadBalancingPolicy::Config> ParseLoadBalancingConfig(
+      const grpc_json* json, grpc_error** error) const = 0;
+
+  virtual ~LoadBalancingPolicyFactory() {}
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/lb_policy_registry.h

@@ -0,0 +1,65 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/orphanable.h"
+
+namespace grpc_core {
+
+class LoadBalancingPolicyRegistry {
+ public:
+  /// Methods used to create and populate the LoadBalancingPolicyRegistry.
+  /// NOT THREAD SAFE -- to be used only during global gRPC
+  /// initialization and shutdown.
+  class Builder {
+   public:
+    /// Global initialization and shutdown hooks.
+    static void InitRegistry();
+    static void ShutdownRegistry();
+
+    /// Registers an LB policy factory.  The factory will be used to create an
+    /// LB policy whose name matches that of the factory.
+    static void RegisterLoadBalancingPolicyFactory(
+        std::unique_ptr<LoadBalancingPolicyFactory> factory);
+  };
+
+  /// Creates an LB policy of the type specified by \a name.
+  static OrphanablePtr<LoadBalancingPolicy> CreateLoadBalancingPolicy(
+      const char* name, LoadBalancingPolicy::Args args);
+
+  /// Returns true if the LB policy factory specified by \a name exists in this
+  /// registry. If the load balancing policy requires a config to be specified
+  /// then sets \a requires_config to true.
+  static bool LoadBalancingPolicyExists(const char* name,
+                                        bool* requires_config);
+
+  /// Returns a parsed object of the load balancing policy to be used from a
+  /// LoadBalancingConfig array \a json.
+  static RefCountedPtr<LoadBalancingPolicy::Config> ParseLoadBalancingConfig(
+      const grpc_json* json, grpc_error** error);
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/local_subchannel_pool.h

@@ -0,0 +1,56 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/subchannel_pool_interface.h"
+
+namespace grpc_core {
+
+// The local subchannel pool that is owned by a single channel. It doesn't
+// support subchannel sharing with other channels by nature. Nor does it support
+// subchannel retention when a subchannel is not used. The only real purpose of
+// using this subchannel pool is to allow subchannel reuse within the channel
+// when an incoming resolver update contains some addresses for which the
+// channel has already created subchannels.
+// Thread-unsafe.
+class LocalSubchannelPool final : public SubchannelPoolInterface {
+ public:
+  LocalSubchannelPool();
+  ~LocalSubchannelPool() override;
+
+  // Implements interface methods.
+  // Thread-unsafe. Intended to be invoked within the client_channel combiner.
+  Subchannel* RegisterSubchannel(SubchannelKey* key,
+                                 Subchannel* constructed) override;
+  void UnregisterSubchannel(SubchannelKey* key) override;
+  Subchannel* FindSubchannel(SubchannelKey* key) override;
+
+ private:
+  // The vtable for subchannel operations in an AVL tree.
+  static const grpc_avl_vtable subchannel_avl_vtable_;
+  // A map from subchannel key to subchannel.
+  grpc_avl subchannel_map_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LOCAL_SUBCHANNEL_POOL_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/parse_address.h

@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
+
+#include <grpc/support/port_platform.h>
+
+#include <stddef.h>
+
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/uri/uri_parser.h"
+
+/** Populate \a resolved_addr from \a uri, whose path is expected to contain a
+ * unix socket path. Returns true upon success. */
+bool grpc_parse_unix(const grpc_uri* uri, grpc_resolved_address* resolved_addr);
+
+/** Populate \a resolved_addr from \a uri, whose path is expected to contain an
+ * IPv4 host:port pair. Returns true upon success. */
+bool grpc_parse_ipv4(const grpc_uri* uri, grpc_resolved_address* resolved_addr);
+
+/** Populate \a resolved_addr from \a uri, whose path is expected to contain an
+ * IPv6 host:port pair. Returns true upon success. */
+bool grpc_parse_ipv6(const grpc_uri* uri, grpc_resolved_address* resolved_addr);
+
+/** Populate \a resolved_addr from \a uri. Returns true upon success. */
+bool grpc_parse_uri(const grpc_uri* uri, grpc_resolved_address* resolved_addr);
+
+/** Parse bare IPv4 or IPv6 "IP:port" strings. */
+bool grpc_parse_ipv4_hostport(const char* hostport, grpc_resolved_address* addr,
+                              bool log_errors);
+bool grpc_parse_ipv6_hostport(const char* hostport, grpc_resolved_address* addr,
+                              bool log_errors);
+
+/* Converts named or numeric port to a uint16 suitable for use in a sockaddr. */
+uint16_t grpc_strhtons(const char* port);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/proxy_mapper.h

@@ -0,0 +1,54 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/lib/iomgr/resolve_address.h"
+
+namespace grpc_core {
+
+class ProxyMapperInterface {
+ public:
+  virtual ~ProxyMapperInterface() = default;
+
+  /// Determines the proxy name to resolve for \a server_uri.
+  /// If no proxy is needed, returns false.
+  /// Otherwise, sets \a name_to_resolve, optionally sets \a new_args,
+  /// and returns true.
+  virtual bool MapName(const char* server_uri, const grpc_channel_args* args,
+                       char** name_to_resolve,
+                       grpc_channel_args** new_args) = 0;
+
+  /// Determines the proxy address to use to contact \a address.
+  /// If no proxy is needed, returns false.
+  /// Otherwise, sets \a new_address, optionally sets \a new_args, and
+  /// returns true.
+  virtual bool MapAddress(const grpc_resolved_address& address,
+                          const grpc_channel_args* args,
+                          grpc_resolved_address** new_address,
+                          grpc_channel_args** new_args) = 0;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/proxy_mapper_registry.h

@@ -0,0 +1,50 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/proxy_mapper.h"
+
+namespace grpc_core {
+
+class ProxyMapperRegistry {
+ public:
+  static void Init();
+  static void Shutdown();
+
+  /// Registers a new proxy mapper.
+  /// If \a at_start is true, the new mapper will be at the beginning of
+  /// the list.  Otherwise, it will be added to the end.
+  static void Register(bool at_start,
+                       std::unique_ptr<ProxyMapperInterface> mapper);
+
+  static bool MapName(const char* server_uri, const grpc_channel_args* args,
+                      char** name_to_resolve, grpc_channel_args** new_args);
+
+  static bool MapAddress(const grpc_resolved_address& address,
+                         const grpc_channel_args* args,
+                         grpc_resolved_address** new_address,
+                         grpc_channel_args** new_args);
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver.h

@@ -0,0 +1,146 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/ext/filters/client_channel/server_address.h"
+#include "src/core/ext/filters/client_channel/service_config.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/iomgr/combiner.h"
+#include "src/core/lib/iomgr/iomgr.h"
+
+extern grpc_core::DebugOnlyTraceFlag grpc_trace_resolver_refcount;
+
+namespace grpc_core {
+
+/// Interface for name resolution.
+///
+/// This interface is designed to support both push-based and pull-based
+/// mechanisms.  A push-based mechanism is one where the resolver will
+/// subscribe to updates for a given name, and the name service will
+/// proactively send new data to the resolver whenever the data associated
+/// with the name changes.  A pull-based mechanism is one where the resolver
+/// needs to query the name service again to get updated information (e.g.,
+/// DNS).
+///
+/// Note: All methods with a "Locked" suffix must be called from the
+/// combiner passed to the constructor.
+class Resolver : public InternallyRefCounted<Resolver> {
+ public:
+  /// Results returned by the resolver.
+  struct Result {
+    ServerAddressList addresses;
+    RefCountedPtr<ServiceConfig> service_config;
+    grpc_error* service_config_error = GRPC_ERROR_NONE;
+    const grpc_channel_args* args = nullptr;
+
+    // TODO(roth): Remove everything below once grpc_error and
+    // grpc_channel_args are convert to copyable and movable C++ objects.
+    Result() = default;
+    ~Result();
+    Result(const Result& other);
+    Result(Result&& other);
+    Result& operator=(const Result& other);
+    Result& operator=(Result&& other);
+  };
+
+  /// A proxy object used by the resolver to return results to the
+  /// client channel.
+  class ResultHandler {
+   public:
+    virtual ~ResultHandler() {}
+
+    /// Returns a result to the channel.
+    /// Takes ownership of \a result.args.
+    virtual void ReturnResult(Result result) = 0;  // NOLINT
+
+    /// Returns a transient error to the channel.
+    /// If the resolver does not set the GRPC_ERROR_INT_GRPC_STATUS
+    /// attribute on the error, calls will be failed with status UNKNOWN.
+    virtual void ReturnError(grpc_error* error) = 0;
+
+    // TODO(yashkt): As part of the service config error handling
+    // changes, add a method to parse the service config JSON string.
+  };
+
+  // Not copyable nor movable.
+  Resolver(const Resolver&) = delete;
+  Resolver& operator=(const Resolver&) = delete;
+  virtual ~Resolver();
+
+  /// Starts resolving.
+  virtual void StartLocked() = 0;
+
+  /// Asks the resolver to obtain an updated resolver result, if
+  /// applicable.
+  ///
+  /// This is useful for pull-based implementations to decide when to
+  /// re-resolve.  However, the implementation is not required to
+  /// re-resolve immediately upon receiving this call; it may instead
+  /// elect to delay based on some configured minimum time between
+  /// queries, to avoid hammering the name service with queries.
+  ///
+  /// For push-based implementations, this may be a no-op.
+  ///
+  /// Note: Implementations must not invoke any method on the
+  /// ResultHandler from within this call.
+  virtual void RequestReresolutionLocked() {}
+
+  /// Resets the re-resolution backoff, if any.
+  /// This needs to be implemented only by pull-based implementations;
+  /// for push-based implementations, it will be a no-op.
+  /// TODO(roth): Pull the backoff code out of resolver and into
+  /// client_channel, so that it can be shared across resolver
+  /// implementations.  At that point, this method can go away.
+  virtual void ResetBackoffLocked() {}
+
+  // Note: This must be invoked while holding the combiner.
+  void Orphan() override {
+    ShutdownLocked();
+    Unref();
+  }
+
+ protected:
+  /// Does NOT take ownership of the reference to \a combiner.
+  // TODO(roth): Once we have a C++-like interface for combiners, this
+  // API should change to take a RefCountedPtr<>, so that we always take
+  // ownership of a new ref.
+  explicit Resolver(Combiner* combiner,
+                    std::unique_ptr<ResultHandler> result_handler);
+
+  /// Shuts down the resolver.
+  virtual void ShutdownLocked() = 0;
+
+  Combiner* combiner() const { return combiner_; }
+
+  ResultHandler* result_handler() const { return result_handler_.get(); }
+
+ private:
+  std::unique_ptr<ResultHandler> result_handler_;
+  Combiner* combiner_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h

@@ -0,0 +1,103 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <ares.h>
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+
+typedef struct grpc_ares_ev_driver grpc_ares_ev_driver;
+
+/* Start \a ev_driver. It will keep working until all IO on its ares_channel is
+   done, or grpc_ares_ev_driver_destroy() is called. It may notify the callbacks
+   bound to its ares_channel when necessary. */
+void grpc_ares_ev_driver_start_locked(grpc_ares_ev_driver* ev_driver);
+
+/* Returns the ares_channel owned by \a ev_driver. To bind a c-ares query to
+   \a ev_driver, use the ares_channel owned by \a ev_driver as the arg of the
+   query. */
+ares_channel* grpc_ares_ev_driver_get_channel_locked(
+    grpc_ares_ev_driver* ev_driver);
+
+/* Creates a new grpc_ares_ev_driver. Returns GRPC_ERROR_NONE if \a ev_driver is
+   created successfully. */
+grpc_error* grpc_ares_ev_driver_create_locked(grpc_ares_ev_driver** ev_driver,
+                                              grpc_pollset_set* pollset_set,
+                                              int query_timeout_ms,
+                                              grpc_core::Combiner* combiner,
+                                              grpc_ares_request* request);
+
+/* Called back when all DNS lookups have completed. */
+void grpc_ares_ev_driver_on_queries_complete_locked(
+    grpc_ares_ev_driver* ev_driver);
+
+/* Shutdown all the grpc_fds used by \a ev_driver */
+void grpc_ares_ev_driver_shutdown_locked(grpc_ares_ev_driver* ev_driver);
+
+/* Exposed in this header for C-core tests only */
+extern void (*grpc_ares_test_only_inject_config)(ares_channel channel);
+
+namespace grpc_core {
+
+/* A wrapped fd that integrates with the grpc iomgr of the current platform.
+ * A GrpcPolledFd knows how to create grpc platform-specific iomgr endpoints
+ * from "ares_socket_t" sockets, and then sign up for readability/writeability
+ * with that poller, and do shutdown and destruction. */
+class GrpcPolledFd {
+ public:
+  virtual ~GrpcPolledFd() {}
+  /* Called when c-ares library is interested and there's no pending callback */
+  virtual void RegisterForOnReadableLocked(grpc_closure* read_closure) = 0;
+  /* Called when c-ares library is interested and there's no pending callback */
+  virtual void RegisterForOnWriteableLocked(grpc_closure* write_closure) = 0;
+  /* Indicates if there is data left even after just being read from */
+  virtual bool IsFdStillReadableLocked() = 0;
+  /* Called once and only once. Must cause cancellation of any pending
+   * read/write callbacks. */
+  virtual void ShutdownLocked(grpc_error* error) = 0;
+  /* Get the underlying ares_socket_t that this was created from */
+  virtual ares_socket_t GetWrappedAresSocketLocked() = 0;
+  /* A unique name, for logging */
+  virtual const char* GetName() = 0;
+};
+
+/* A GrpcPolledFdFactory is 1-to-1 with and owned by the
+ * ares event driver. It knows how to create GrpcPolledFd's
+ * for the current platform, and the ares driver uses it for all of
+ * its fd's. */
+class GrpcPolledFdFactory {
+ public:
+  virtual ~GrpcPolledFdFactory() {}
+  /* Creates a new wrapped fd for the current platform */
+  virtual GrpcPolledFd* NewGrpcPolledFdLocked(
+      ares_socket_t as, grpc_pollset_set* driver_pollset_set,
+      Combiner* combiner) = 0;
+  /* Optionally configures the ares channel after creation */
+  virtual void ConfigureAresChannelLocked(ares_channel channel) = 0;
+};
+
+std::unique_ptr<GrpcPolledFdFactory> NewGrpcPolledFdFactory(Combiner* combiner);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h

@@ -0,0 +1,95 @@
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/server_address.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+
+#define GRPC_DNS_ARES_DEFAULT_QUERY_TIMEOUT_MS 120000
+
+extern grpc_core::TraceFlag grpc_trace_cares_address_sorting;
+
+extern grpc_core::TraceFlag grpc_trace_cares_resolver;
+
+#define GRPC_CARES_TRACE_LOG(format, ...)                           \
+  do {                                                              \
+    if (GRPC_TRACE_FLAG_ENABLED(grpc_trace_cares_resolver)) {       \
+      gpr_log(GPR_DEBUG, "(c-ares resolver) " format, __VA_ARGS__); \
+    }                                                               \
+  } while (0)
+
+typedef struct grpc_ares_request grpc_ares_request;
+
+/* Asynchronously resolve \a name. Use \a default_port if a port isn't
+   designated in \a name, otherwise use the port in \a name. grpc_ares_init()
+   must be called at least once before this function. \a on_done may be
+   called directly in this function without being scheduled with \a exec_ctx,
+   so it must not try to acquire locks that are being held by the caller. */
+extern void (*grpc_resolve_address_ares)(const char* name,
+                                         const char* default_port,
+                                         grpc_pollset_set* interested_parties,
+                                         grpc_closure* on_done,
+                                         grpc_resolved_addresses** addresses);
+
+/* Asynchronously resolve \a name. It will try to resolve grpclb SRV records in
+  addition to the normal address records. For normal address records, it uses
+  \a default_port if a port isn't designated in \a name, otherwise it uses the
+  port in \a name. grpc_ares_init() must be called at least once before this
+  function. \a on_done may be called directly in this function without being
+  scheduled with \a exec_ctx, so it must not try to acquire locks that are
+  being held by the caller. The returned grpc_ares_request object is owned
+  by the caller and it is safe to free after on_done is called back. */
+extern grpc_ares_request* (*grpc_dns_lookup_ares_locked)(
+    const char* dns_server, const char* name, const char* default_port,
+    grpc_pollset_set* interested_parties, grpc_closure* on_done,
+    std::unique_ptr<grpc_core::ServerAddressList>* addresses, bool check_grpclb,
+    char** service_config_json, int query_timeout_ms,
+    grpc_core::Combiner* combiner);
+
+/* Cancel the pending grpc_ares_request \a request */
+extern void (*grpc_cancel_ares_request_locked)(grpc_ares_request* request);
+
+/* Initialize gRPC ares wrapper. Must be called at least once before
+   grpc_resolve_address_ares(). */
+grpc_error* grpc_ares_init(void);
+
+/* Uninitialized gRPC ares wrapper. If there was more than one previous call to
+   grpc_ares_init(), this function uninitializes the gRPC ares wrapper only if
+   it has been called the same number of times as grpc_ares_init(). */
+void grpc_ares_cleanup(void);
+
+/** Schedules the desired callback for request completion
+ * and destroys the grpc_ares_request */
+void grpc_ares_complete_request_locked(grpc_ares_request* request);
+
+/* Indicates whether or not AAAA queries should be attempted. */
+/* E.g., return false if ipv6 is known to not be available. */
+bool grpc_ares_query_ipv6();
+
+/* Sorts destinations in lb_addrs according to RFC 6724. */
+void grpc_cares_wrapper_address_sorting_sort(
+    grpc_core::ServerAddressList* addresses);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver/dns/dns_resolver_selection.h

@@ -0,0 +1,29 @@
+/*
+ *
+ * Copyright 2019 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_DNS_RESOLVER_SELECTION_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_DNS_RESOLVER_SELECTION_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/gprpp/global_config.h"
+
+GPR_GLOBAL_CONFIG_DECLARE_STRING(grpc_dns_resolver);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_DNS_RESOLVER_SELECTION_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h

@@ -0,0 +1,97 @@
+//
+// Copyright 2016 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FAKE_FAKE_RESOLVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FAKE_FAKE_RESOLVER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/iomgr/error.h"
+
+#define GRPC_ARG_FAKE_RESOLVER_RESPONSE_GENERATOR \
+  "grpc.fake_resolver.response_generator"
+
+namespace grpc_core {
+
+class FakeResolver;
+
+/// A mechanism for generating responses for the fake resolver.
+/// An instance of this class is passed to the fake resolver via a channel
+/// argument (see \a MakeChannelArg()) and used to inject and trigger custom
+/// resolutions.
+// TODO(roth): I would ideally like this to be InternallyRefCounted
+// instead of RefCounted, but external refs are currently needed to
+// encode this in channel args.  Once channel_args are converted to C++,
+// see if we can find a way to fix this.
+class FakeResolverResponseGenerator
+    : public RefCounted<FakeResolverResponseGenerator> {
+ public:
+  FakeResolverResponseGenerator();
+  ~FakeResolverResponseGenerator();
+
+  // Instructs the fake resolver associated with the response generator
+  // instance to trigger a new resolution with the specified result. If the
+  // resolver is not available yet, delays response setting until it is. This
+  // can be called at most once before the resolver is available.
+  void SetResponse(Resolver::Result result);
+
+  // Sets the re-resolution response, which is returned by the fake resolver
+  // when re-resolution is requested (via \a RequestReresolutionLocked()).
+  // The new re-resolution response replaces any previous re-resolution
+  // response that may have been set by a previous call.
+  void SetReresolutionResponse(Resolver::Result result);
+
+  // Unsets the re-resolution response.  After this, the fake resolver will
+  // not return anything when \a RequestReresolutionLocked() is called.
+  void UnsetReresolutionResponse();
+
+  // Tells the resolver to return a transient failure.
+  void SetFailure();
+
+  // Same as SetFailure(), but instead of returning the error
+  // immediately, waits for the next call to RequestReresolutionLocked().
+  void SetFailureOnReresolution();
+
+  // Returns a channel arg containing \a generator.
+  static grpc_arg MakeChannelArg(FakeResolverResponseGenerator* generator);
+
+  // Returns the response generator in \a args, or null if not found.
+  static RefCountedPtr<FakeResolverResponseGenerator> GetFromArgs(
+      const grpc_channel_args* args);
+
+ private:
+  friend class FakeResolver;
+  // Set the corresponding FakeResolver to this generator.
+  void SetFakeResolver(RefCountedPtr<FakeResolver> resolver);
+
+  static void SetResponseLocked(void* arg, grpc_error* error);
+  static void SetReresolutionResponseLocked(void* arg, grpc_error* error);
+  static void SetFailureLocked(void* arg, grpc_error* error);
+
+  // Mutex protecting the members below.
+  Mutex mu_;
+  RefCountedPtr<FakeResolver> resolver_;
+  Resolver::Result result_;
+  bool has_result_ = false;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FAKE_FAKE_RESOLVER_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver_factory.h

@@ -0,0 +1,73 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/support/string_util.h>
+
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/uri/uri_parser.h"
+
+namespace grpc_core {
+
+struct ResolverArgs {
+  /// The parsed URI to resolve.
+  grpc_uri* uri = nullptr;
+  /// Channel args to be included in resolver results.
+  const grpc_channel_args* args = nullptr;
+  /// Used to drive I/O in the name resolution process.
+  grpc_pollset_set* pollset_set = nullptr;
+  /// The combiner under which all resolver calls will be run.
+  Combiner* combiner = nullptr;
+  /// The result handler to be used by the resolver.
+  std::unique_ptr<Resolver::ResultHandler> result_handler;
+};
+
+class ResolverFactory {
+ public:
+  /// Returns a bool indicating whether the input uri is valid to create a
+  /// resolver.
+  virtual bool IsValidUri(const grpc_uri* uri) const = 0;
+
+  /// Returns a new resolver instance.
+  virtual OrphanablePtr<Resolver> CreateResolver(ResolverArgs args) const = 0;
+
+  /// Returns a string representing the default authority to use for this
+  /// scheme.
+  virtual grpc_core::UniquePtr<char> GetDefaultAuthority(grpc_uri* uri) const {
+    const char* path = uri->path;
+    if (path[0] == '/') ++path;
+    return grpc_core::UniquePtr<char>(gpr_strdup(path));
+  }
+
+  /// Returns the URI scheme that this factory implements.
+  /// Caller does NOT take ownership of result.
+  virtual const char* scheme() const = 0;
+
+  virtual ~ResolverFactory() {}
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver_registry.h

@@ -0,0 +1,89 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/resolver_factory.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+
+namespace grpc_core {
+
+class ResolverRegistry {
+ public:
+  /// Methods used to create and populate the ResolverRegistry.
+  /// NOT THREAD SAFE -- to be used only during global gRPC
+  /// initialization and shutdown.
+  class Builder {
+   public:
+    /// Global initialization and shutdown hooks.
+    static void InitRegistry();
+    static void ShutdownRegistry();
+
+    /// Sets the default URI prefix to \a default_prefix.
+    /// Calls InitRegistry() if it has not already been called.
+    static void SetDefaultPrefix(const char* default_prefix);
+
+    /// Registers a resolver factory.  The factory will be used to create a
+    /// resolver for any URI whose scheme matches that of the factory.
+    /// Calls InitRegistry() if it has not already been called.
+    static void RegisterResolverFactory(
+        std::unique_ptr<ResolverFactory> factory);
+  };
+
+  /// Checks whether the user input \a target is valid to create a resolver.
+  static bool IsValidTarget(const char* target);
+
+  /// Creates a resolver given \a target.
+  /// First tries to parse \a target as a URI. If this succeeds, tries
+  /// to locate a registered resolver factory based on the URI scheme.
+  /// If parsing fails or there is no factory for the URI's scheme,
+  /// prepends default_prefix to target and tries again.
+  /// If a resolver factory is found, uses it to instantiate a resolver and
+  /// returns it; otherwise, returns nullptr.
+  /// \a args, \a pollset_set, and \a combiner are passed to the factory's
+  /// \a CreateResolver() method.
+  /// \a args are the channel args to be included in resolver results.
+  /// \a pollset_set is used to drive I/O in the name resolution process.
+  /// \a combiner is the combiner under which all resolver calls will be run.
+  /// \a result_handler is used to return results from the resolver.
+  static OrphanablePtr<Resolver> CreateResolver(
+      const char* target, const grpc_channel_args* args,
+      grpc_pollset_set* pollset_set, Combiner* combiner,
+      std::unique_ptr<Resolver::ResultHandler> result_handler);
+
+  /// Returns the default authority to pass from a client for \a target.
+  static grpc_core::UniquePtr<char> GetDefaultAuthority(const char* target);
+
+  /// Returns \a target with the default prefix prepended, if needed.
+  static grpc_core::UniquePtr<char> AddDefaultPrefixIfNeeded(
+      const char* target);
+
+  /// Returns the resolver factory for \a scheme.
+  /// Caller does NOT own the return value.
+  static ResolverFactory* LookupResolverFactory(const char* scheme);
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolver_result_parsing.h

@@ -0,0 +1,124 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_RESULT_PARSING_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_RESULT_PARSING_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/service_config.h"
+#include "src/core/lib/channel/status_util.h"
+#include "src/core/lib/gprpp/optional.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/iomgr/exec_ctx.h"  // for grpc_millis
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/slice/slice_hash_table.h"
+
+namespace grpc_core {
+namespace internal {
+
+class ClientChannelGlobalParsedConfig : public ServiceConfig::ParsedConfig {
+ public:
+  struct RetryThrottling {
+    intptr_t max_milli_tokens = 0;
+    intptr_t milli_token_ratio = 0;
+  };
+
+  ClientChannelGlobalParsedConfig(
+      RefCountedPtr<LoadBalancingPolicy::Config> parsed_lb_config,
+      grpc_core::UniquePtr<char> parsed_deprecated_lb_policy,
+      const Optional<RetryThrottling>& retry_throttling,
+      const char* health_check_service_name)
+      : parsed_lb_config_(std::move(parsed_lb_config)),
+        parsed_deprecated_lb_policy_(std::move(parsed_deprecated_lb_policy)),
+        retry_throttling_(retry_throttling),
+        health_check_service_name_(health_check_service_name) {}
+
+  Optional<RetryThrottling> retry_throttling() const {
+    return retry_throttling_;
+  }
+
+  RefCountedPtr<LoadBalancingPolicy::Config> parsed_lb_config() const {
+    return parsed_lb_config_;
+  }
+
+  const char* parsed_deprecated_lb_policy() const {
+    return parsed_deprecated_lb_policy_.get();
+  }
+
+  const char* health_check_service_name() const {
+    return health_check_service_name_;
+  }
+
+ private:
+  RefCountedPtr<LoadBalancingPolicy::Config> parsed_lb_config_;
+  grpc_core::UniquePtr<char> parsed_deprecated_lb_policy_;
+  Optional<RetryThrottling> retry_throttling_;
+  const char* health_check_service_name_;
+};
+
+class ClientChannelMethodParsedConfig : public ServiceConfig::ParsedConfig {
+ public:
+  struct RetryPolicy {
+    int max_attempts = 0;
+    grpc_millis initial_backoff = 0;
+    grpc_millis max_backoff = 0;
+    float backoff_multiplier = 0;
+    StatusCodeSet retryable_status_codes;
+  };
+
+  ClientChannelMethodParsedConfig(grpc_millis timeout,
+                                  const Optional<bool>& wait_for_ready,
+                                  std::unique_ptr<RetryPolicy> retry_policy)
+      : timeout_(timeout),
+        wait_for_ready_(wait_for_ready),
+        retry_policy_(std::move(retry_policy)) {}
+
+  grpc_millis timeout() const { return timeout_; }
+
+  Optional<bool> wait_for_ready() const { return wait_for_ready_; }
+
+  const RetryPolicy* retry_policy() const { return retry_policy_.get(); }
+
+ private:
+  grpc_millis timeout_ = 0;
+  Optional<bool> wait_for_ready_;
+  std::unique_ptr<RetryPolicy> retry_policy_;
+};
+
+class ClientChannelServiceConfigParser : public ServiceConfig::Parser {
+ public:
+  std::unique_ptr<ServiceConfig::ParsedConfig> ParseGlobalParams(
+      const grpc_json* json, grpc_error** error) override;
+
+  std::unique_ptr<ServiceConfig::ParsedConfig> ParsePerMethodParams(
+      const grpc_json* json, grpc_error** error) override;
+
+  static size_t ParserIndex();
+  static void Register();
+};
+
+}  // namespace internal
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_RESULT_PARSING_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/resolving_lb_policy.h

@@ -0,0 +1,126 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVING_LB_POLICY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVING_LB_POLICY_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/iomgr/call_combiner.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/transport/connectivity_state.h"
+#include "src/core/lib/transport/metadata_batch.h"
+
+namespace grpc_core {
+
+// An LB policy that wraps a resolver and a child LB policy to make use
+// of the addresses returned by the resolver.
+//
+// When used in the client_channel code, the resolver will attempt to
+// fetch the service config, and the child LB policy name and config
+// will be determined based on the service config.
+//
+// When used in an LB policy implementation that needs to do another
+// round of resolution before creating a child policy, the resolver does
+// not fetch the service config, and the caller must pre-determine the
+// child LB policy and config to use.
+class ResolvingLoadBalancingPolicy : public LoadBalancingPolicy {
+ public:
+  // Synchronous callback that takes the resolver result and sets
+  // lb_policy_name and lb_policy_config to point to the right data.
+  // Returns true if the service config has changed since the last result.
+  // If the returned service_config_error is not none and lb_policy_name is
+  // empty, it means that we don't have a valid service config to use, and we
+  // should set the channel to be in TRANSIENT_FAILURE.
+  typedef bool (*ProcessResolverResultCallback)(
+      void* user_data, const Resolver::Result& result,
+      const char** lb_policy_name,
+      RefCountedPtr<LoadBalancingPolicy::Config>* lb_policy_config,
+      grpc_error** service_config_error);
+  // If error is set when this returns, then construction failed, and
+  // the caller may not use the new object.
+  ResolvingLoadBalancingPolicy(
+      Args args, TraceFlag* tracer, grpc_core::UniquePtr<char> target_uri,
+      ProcessResolverResultCallback process_resolver_result,
+      void* process_resolver_result_user_data);
+
+  virtual const char* name() const override { return "resolving_lb"; }
+
+  // No-op -- should never get updates from the channel.
+  // TODO(roth): Need to support updating child LB policy's config for xds
+  // use case.
+  void UpdateLocked(UpdateArgs /*args*/) override {}
+
+  void ExitIdleLocked() override;
+
+  void ResetBackoffLocked() override;
+
+ private:
+  using TraceStringVector = InlinedVector<char*, 3>;
+
+  class ResolverResultHandler;
+  class ResolvingControlHelper;
+
+  ~ResolvingLoadBalancingPolicy();
+
+  void ShutdownLocked() override;
+
+  void OnResolverError(grpc_error* error);
+  void CreateOrUpdateLbPolicyLocked(
+      const char* lb_policy_name,
+      RefCountedPtr<LoadBalancingPolicy::Config> lb_policy_config,
+      Resolver::Result result, TraceStringVector* trace_strings);
+  OrphanablePtr<LoadBalancingPolicy> CreateLbPolicyLocked(
+      const char* lb_policy_name, const grpc_channel_args& args,
+      TraceStringVector* trace_strings);
+  void MaybeAddTraceMessagesForAddressChangesLocked(
+      bool resolution_contains_addresses, TraceStringVector* trace_strings);
+  void ConcatenateAndAddChannelTraceLocked(
+      TraceStringVector* trace_strings) const;
+  void OnResolverResultChangedLocked(Resolver::Result result);
+
+  // Passed in from caller at construction time.
+  TraceFlag* tracer_;
+  grpc_core::UniquePtr<char> target_uri_;
+  ProcessResolverResultCallback process_resolver_result_ = nullptr;
+  void* process_resolver_result_user_data_ = nullptr;
+  grpc_core::UniquePtr<char> child_policy_name_;
+  RefCountedPtr<LoadBalancingPolicy::Config> child_lb_config_;
+
+  // Resolver and associated state.
+  OrphanablePtr<Resolver> resolver_;
+  bool previous_resolution_contained_addresses_ = false;
+
+  // Child LB policy.
+  OrphanablePtr<LoadBalancingPolicy> lb_policy_;
+  OrphanablePtr<LoadBalancingPolicy> pending_lb_policy_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVING_LB_POLICY_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/retry_throttle.h

@@ -0,0 +1,77 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+
+namespace grpc_core {
+namespace internal {
+
+/// Tracks retry throttling data for an individual server name.
+class ServerRetryThrottleData : public RefCounted<ServerRetryThrottleData> {
+ public:
+  ServerRetryThrottleData(intptr_t max_milli_tokens, intptr_t milli_token_ratio,
+                          ServerRetryThrottleData* old_throttle_data);
+  ~ServerRetryThrottleData();
+
+  /// Records a failure.  Returns true if it's okay to send a retry.
+  bool RecordFailure();
+
+  /// Records a success.
+  void RecordSuccess();
+
+  intptr_t max_milli_tokens() const { return max_milli_tokens_; }
+  intptr_t milli_token_ratio() const { return milli_token_ratio_; }
+
+ private:
+  void GetReplacementThrottleDataIfNeeded(
+      ServerRetryThrottleData** throttle_data);
+
+  const intptr_t max_milli_tokens_;
+  const intptr_t milli_token_ratio_;
+  gpr_atm milli_tokens_;
+  // A pointer to the replacement for this ServerRetryThrottleData entry.
+  // If non-nullptr, then this entry is stale and must not be used.
+  // We hold a reference to the replacement.
+  gpr_atm replacement_ = 0;
+};
+
+/// Global map of server name to retry throttle data.
+class ServerRetryThrottleMap {
+ public:
+  /// Initializes global map of failure data for each server name.
+  static void Init();
+  /// Shuts down global map of failure data for each server name.
+  static void Shutdown();
+
+  /// Returns the failure data for \a server_name, creating a new entry if
+  /// needed.
+  static RefCountedPtr<ServerRetryThrottleData> GetDataForServer(
+      const char* server_name, intptr_t max_milli_tokens,
+      intptr_t milli_token_ratio);
+};
+
+}  // namespace internal
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/server_address.h

@@ -0,0 +1,96 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVER_ADDRESS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVER_ADDRESS_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+
+// Channel arg key for a bool indicating whether an address is a grpclb
+// load balancer (as opposed to a backend).
+#define GRPC_ARG_ADDRESS_IS_BALANCER "grpc.address_is_balancer"
+
+// Channel arg key for a string indicating an address's balancer name.
+#define GRPC_ARG_ADDRESS_BALANCER_NAME "grpc.address_balancer_name"
+
+namespace grpc_core {
+
+//
+// ServerAddress
+//
+
+// A server address is a grpc_resolved_address with an associated set of
+// channel args.  Any args present here will be merged into the channel
+// args when a subchannel is created for this address.
+class ServerAddress {
+ public:
+  // Takes ownership of args.
+  ServerAddress(const grpc_resolved_address& address, grpc_channel_args* args);
+  ServerAddress(const void* address, size_t address_len,
+                grpc_channel_args* args);
+
+  ~ServerAddress() { grpc_channel_args_destroy(args_); }
+
+  // Copyable.
+  ServerAddress(const ServerAddress& other)
+      : address_(other.address_), args_(grpc_channel_args_copy(other.args_)) {}
+  ServerAddress& operator=(const ServerAddress& other) {
+    address_ = other.address_;
+    grpc_channel_args_destroy(args_);
+    args_ = grpc_channel_args_copy(other.args_);
+    return *this;
+  }
+
+  // Movable.
+  ServerAddress(ServerAddress&& other)
+      : address_(other.address_), args_(other.args_) {
+    other.args_ = nullptr;
+  }
+  ServerAddress& operator=(ServerAddress&& other) {
+    address_ = other.address_;
+    grpc_channel_args_destroy(args_);
+    args_ = other.args_;
+    other.args_ = nullptr;
+    return *this;
+  }
+
+  bool operator==(const ServerAddress& other) const;
+
+  const grpc_resolved_address& address() const { return address_; }
+  const grpc_channel_args* args() const { return args_; }
+
+  bool IsBalancer() const;
+
+ private:
+  grpc_resolved_address address_;
+  grpc_channel_args* args_;
+};
+
+//
+// ServerAddressList
+//
+
+typedef InlinedVector<ServerAddress, 1> ServerAddressList;
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVER_ADDRESS_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/service_config.h

@@ -0,0 +1,200 @@
+//
+// Copyright 2016 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVICE_CONFIG_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVICE_CONFIG_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/iomgr/error.h"
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/slice/slice_hash_table.h"
+
+// The main purpose of the code here is to parse the service config in
+// JSON form, which will look like this:
+//
+// {
+//   "loadBalancingPolicy": "string",  // optional
+//   "methodConfig": [  // array of one or more method_config objects
+//     {
+//       "name": [  // array of one or more name objects
+//         {
+//           "service": "string",  // required
+//           "method": "string",  // optional
+//         }
+//       ],
+//       // remaining fields are optional.
+//       // see https://developers.google.com/protocol-buffers/docs/proto3#json
+//       // for format details.
+//       "waitForReady": bool,
+//       "timeout": "duration_string",
+//       "maxRequestMessageBytes": "int64_string",
+//       "maxResponseMessageBytes": "int64_string",
+//     }
+//   ]
+// }
+
+namespace grpc_core {
+
+class ServiceConfig : public RefCounted<ServiceConfig> {
+ public:
+  /// This is the base class that all service config parsers MUST use to store
+  /// parsed service config data.
+  class ParsedConfig {
+   public:
+    virtual ~ParsedConfig() = default;
+  };
+
+  /// This is the base class that all service config parsers should derive from.
+  class Parser {
+   public:
+    virtual ~Parser() = default;
+
+    virtual std::unique_ptr<ParsedConfig> ParseGlobalParams(
+        const grpc_json* /* json */, grpc_error** error) {
+      // Avoid unused parameter warning on debug-only parameter
+      (void)error;
+      GPR_DEBUG_ASSERT(error != nullptr);
+      return nullptr;
+    }
+
+    virtual std::unique_ptr<ParsedConfig> ParsePerMethodParams(
+        const grpc_json* /* json */, grpc_error** error) {
+      // Avoid unused parameter warning on debug-only parameter
+      (void)error;
+      GPR_DEBUG_ASSERT(error != nullptr);
+      return nullptr;
+    }
+  };
+
+  static constexpr int kNumPreallocatedParsers = 4;
+  typedef InlinedVector<std::unique_ptr<ParsedConfig>, kNumPreallocatedParsers>
+      ParsedConfigVector;
+
+  /// When a service config is applied to a call in the client_channel_filter,
+  /// we create an instance of this object and store it in the call_data for
+  /// client_channel. A pointer to this object is also stored in the
+  /// call_context, so that future filters can easily access method and global
+  /// parameters for the call.
+  class CallData {
+   public:
+    CallData() = default;
+    CallData(RefCountedPtr<ServiceConfig> svc_cfg, const grpc_slice& path)
+        : service_config_(std::move(svc_cfg)) {
+      if (service_config_ != nullptr) {
+        method_params_vector_ =
+            service_config_->GetMethodParsedConfigVector(path);
+      }
+    }
+
+    ServiceConfig* service_config() { return service_config_.get(); }
+
+    ParsedConfig* GetMethodParsedConfig(size_t index) const {
+      return method_params_vector_ != nullptr
+                 ? (*method_params_vector_)[index].get()
+                 : nullptr;
+    }
+
+    ParsedConfig* GetGlobalParsedConfig(size_t index) const {
+      return service_config_->GetGlobalParsedConfig(index);
+    }
+
+   private:
+    RefCountedPtr<ServiceConfig> service_config_;
+    const ParsedConfigVector* method_params_vector_ = nullptr;
+  };
+
+  /// Creates a new service config from parsing \a json_string.
+  /// Returns null on parse error.
+  static RefCountedPtr<ServiceConfig> Create(const char* json,
+                                             grpc_error** error);
+
+  // Takes ownership of \a json_tree.
+  ServiceConfig(grpc_core::UniquePtr<char> service_config_json,
+                grpc_core::UniquePtr<char> json_string, grpc_json* json_tree,
+                grpc_error** error);
+  ~ServiceConfig();
+
+  const char* service_config_json() const { return service_config_json_.get(); }
+
+  /// Retrieves the global parsed config at index \a index. The
+  /// lifetime of the returned object is tied to the lifetime of the
+  /// ServiceConfig object.
+  ParsedConfig* GetGlobalParsedConfig(size_t index) {
+    GPR_DEBUG_ASSERT(index < parsed_global_configs_.size());
+    return parsed_global_configs_[index].get();
+  }
+
+  /// Retrieves the vector of parsed configs for the method identified
+  /// by \a path.  The lifetime of the returned vector and contained objects
+  /// is tied to the lifetime of the ServiceConfig object.
+  const ParsedConfigVector* GetMethodParsedConfigVector(const grpc_slice& path);
+
+  /// Globally register a service config parser. On successful registration, it
+  /// returns the index at which the parser was registered. On failure, -1 is
+  /// returned. Each new service config update will go through all the
+  /// registered parser. Each parser is responsible for reading the service
+  /// config json and returning a parsed config. This parsed config can later be
+  /// retrieved using the same index that was returned at registration time.
+  static size_t RegisterParser(std::unique_ptr<Parser> parser);
+
+  static void Init();
+
+  static void Shutdown();
+
+ private:
+  // Helper functions to parse the service config
+  grpc_error* ParseGlobalParams(const grpc_json* json_tree);
+  grpc_error* ParsePerMethodParams(const grpc_json* json_tree);
+
+  // Returns the number of names specified in the method config \a json.
+  static int CountNamesInMethodConfig(grpc_json* json);
+
+  // Returns a path string for the JSON name object specified by \a json.
+  // Returns null on error, and stores error in \a error.
+  static grpc_core::UniquePtr<char> ParseJsonMethodName(grpc_json* json,
+                                                        grpc_error** error);
+
+  grpc_error* ParseJsonMethodConfigToServiceConfigVectorTable(
+      const grpc_json* json,
+      SliceHashTable<const ParsedConfigVector*>::Entry* entries, size_t* idx);
+
+  grpc_core::UniquePtr<char> service_config_json_;
+  grpc_core::UniquePtr<char> json_string_;  // Underlying storage for json_tree.
+  grpc_json* json_tree_;
+
+  InlinedVector<std::unique_ptr<ParsedConfig>, kNumPreallocatedParsers>
+      parsed_global_configs_;
+  // A map from the method name to the parsed config vector. Note that we are
+  // using a raw pointer and not a unique pointer so that we can use the same
+  // vector for multiple names.
+  RefCountedPtr<SliceHashTable<const ParsedConfigVector*>>
+      parsed_method_configs_table_;
+  // Storage for all the vectors that are being used in
+  // parsed_method_configs_table_.
+  InlinedVector<std::unique_ptr<ParsedConfigVector>, 32>
+      parsed_method_config_vectors_storage_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SERVICE_CONFIG_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/subchannel.h

@@ -0,0 +1,403 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/client_channel_channelz.h"
+#include "src/core/ext/filters/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/subchannel_pool_interface.h"
+#include "src/core/lib/backoff/backoff.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/gpr/time_precise.h"
+#include "src/core/lib/gprpp/arena.h"
+#include "src/core/lib/gprpp/map.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/gprpp/sync.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/transport/connectivity_state.h"
+#include "src/core/lib/transport/metadata.h"
+
+// Channel arg containing a grpc_resolved_address to connect to.
+#define GRPC_ARG_SUBCHANNEL_ADDRESS "grpc.subchannel_address"
+
+// For debugging refcounting.
+#ifndef NDEBUG
+#define GRPC_SUBCHANNEL_REF(p, r) (p)->Ref(__FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) (p)->RefFromWeakRef()
+#define GRPC_SUBCHANNEL_UNREF(p, r) (p)->Unref(__FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_WEAK_REF(p, r) (p)->WeakRef(__FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_WEAK_UNREF(p, r) (p)->WeakUnref(__FILE__, __LINE__, (r))
+#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS \
+  const char *file, int line, const char *reason
+#define GRPC_SUBCHANNEL_REF_REASON reason
+#define GRPC_SUBCHANNEL_REF_MUTATE_EXTRA_ARGS \
+  , GRPC_SUBCHANNEL_REF_EXTRA_ARGS, const char* purpose
+#define GRPC_SUBCHANNEL_REF_MUTATE_PURPOSE(x) , file, line, reason, x
+#else
+#define GRPC_SUBCHANNEL_REF(p, r) (p)->Ref()
+#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) (p)->RefFromWeakRef()
+#define GRPC_SUBCHANNEL_UNREF(p, r) (p)->Unref()
+#define GRPC_SUBCHANNEL_WEAK_REF(p, r) (p)->WeakRef()
+#define GRPC_SUBCHANNEL_WEAK_UNREF(p, r) (p)->WeakUnref()
+#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS
+#define GRPC_SUBCHANNEL_REF_REASON ""
+#define GRPC_SUBCHANNEL_REF_MUTATE_EXTRA_ARGS
+#define GRPC_SUBCHANNEL_REF_MUTATE_PURPOSE(x)
+#endif
+
+namespace grpc_core {
+
+class SubchannelCall;
+
+class ConnectedSubchannel : public RefCounted<ConnectedSubchannel> {
+ public:
+  ConnectedSubchannel(
+      grpc_channel_stack* channel_stack, const grpc_channel_args* args,
+      RefCountedPtr<channelz::SubchannelNode> channelz_subchannel);
+  ~ConnectedSubchannel();
+
+  void StartWatch(grpc_pollset_set* interested_parties,
+                  OrphanablePtr<ConnectivityStateWatcherInterface> watcher);
+
+  void Ping(grpc_closure* on_initiate, grpc_closure* on_ack);
+
+  grpc_channel_stack* channel_stack() const { return channel_stack_; }
+  const grpc_channel_args* args() const { return args_; }
+  channelz::SubchannelNode* channelz_subchannel() const {
+    return channelz_subchannel_.get();
+  }
+
+  size_t GetInitialCallSizeEstimate(size_t parent_data_size) const;
+
+ private:
+  grpc_channel_stack* channel_stack_;
+  grpc_channel_args* args_;
+  // ref counted pointer to the channelz node in this connected subchannel's
+  // owning subchannel.
+  RefCountedPtr<channelz::SubchannelNode> channelz_subchannel_;
+};
+
+// Implements the interface of RefCounted<>.
+class SubchannelCall {
+ public:
+  struct Args {
+    RefCountedPtr<ConnectedSubchannel> connected_subchannel;
+    grpc_polling_entity* pollent;
+    grpc_slice path;
+    gpr_cycle_counter start_time;
+    grpc_millis deadline;
+    Arena* arena;
+    grpc_call_context_element* context;
+    CallCombiner* call_combiner;
+    size_t parent_data_size;
+  };
+  static RefCountedPtr<SubchannelCall> Create(Args args, grpc_error** error);
+
+  // Continues processing a transport stream op batch.
+  void StartTransportStreamOpBatch(grpc_transport_stream_op_batch* batch);
+
+  // Returns a pointer to the parent data associated with the subchannel call.
+  // The data will be of the size specified in \a parent_data_size field of
+  // the args passed to \a ConnectedSubchannel::CreateCall().
+  void* GetParentData();
+
+  // Returns the call stack of the subchannel call.
+  grpc_call_stack* GetCallStack();
+
+  // Sets the 'then_schedule_closure' argument for call stack destruction.
+  // Must be called once per call.
+  void SetAfterCallStackDestroy(grpc_closure* closure);
+
+  // Interface of RefCounted<>.
+  RefCountedPtr<SubchannelCall> Ref() GRPC_MUST_USE_RESULT;
+  RefCountedPtr<SubchannelCall> Ref(const DebugLocation& location,
+                                    const char* reason) GRPC_MUST_USE_RESULT;
+  // When refcount drops to 0, destroys itself and the associated call stack,
+  // but does NOT free the memory because it's in the call arena.
+  void Unref();
+  void Unref(const DebugLocation& location, const char* reason);
+
+  static void Destroy(void* arg, grpc_error* error);
+
+ private:
+  // Allow RefCountedPtr<> to access IncrementRefCount().
+  template <typename T>
+  friend class RefCountedPtr;
+
+  SubchannelCall(Args args, grpc_error** error);
+
+  // If channelz is enabled, intercepts recv_trailing so that we may check the
+  // status and associate it to a subchannel.
+  void MaybeInterceptRecvTrailingMetadata(
+      grpc_transport_stream_op_batch* batch);
+
+  static void RecvTrailingMetadataReady(void* arg, grpc_error* error);
+
+  // Interface of RefCounted<>.
+  void IncrementRefCount();
+  void IncrementRefCount(const DebugLocation& location, const char* reason);
+
+  RefCountedPtr<ConnectedSubchannel> connected_subchannel_;
+  grpc_closure* after_call_stack_destroy_ = nullptr;
+  // State needed to support channelz interception of recv trailing metadata.
+  grpc_closure recv_trailing_metadata_ready_;
+  grpc_closure* original_recv_trailing_metadata_ = nullptr;
+  grpc_metadata_batch* recv_trailing_metadata_ = nullptr;
+  grpc_millis deadline_;
+};
+
+// A subchannel that knows how to connect to exactly one target address. It
+// provides a target for load balancing.
+//
+// Note that this is the "real" subchannel implementation, whose API is
+// different from the SubchannelInterface that is exposed to LB policy
+// implementations.  The client channel provides an adaptor class
+// (SubchannelWrapper) that "converts" between the two.
+class Subchannel {
+ public:
+  class ConnectivityStateWatcherInterface
+      : public InternallyRefCounted<ConnectivityStateWatcherInterface> {
+   public:
+    virtual ~ConnectivityStateWatcherInterface() = default;
+
+    // Will be invoked whenever the subchannel's connectivity state
+    // changes.  There will be only one invocation of this method on a
+    // given watcher instance at any given time.
+    //
+    // When the state changes to READY, connected_subchannel will
+    // contain a ref to the connected subchannel.  When it changes from
+    // READY to some other state, the implementation must release its
+    // ref to the connected subchannel.
+    virtual void OnConnectivityStateChange(
+        grpc_connectivity_state new_state,
+        RefCountedPtr<ConnectedSubchannel> connected_subchannel)  // NOLINT
+        = 0;
+
+    virtual grpc_pollset_set* interested_parties() = 0;
+  };
+
+  // The ctor and dtor are not intended to use directly.
+  Subchannel(SubchannelKey* key, OrphanablePtr<SubchannelConnector> connector,
+             const grpc_channel_args* args);
+  ~Subchannel();
+
+  // Creates a subchannel given \a connector and \a args.
+  static Subchannel* Create(OrphanablePtr<SubchannelConnector> connector,
+                            const grpc_channel_args* args);
+
+  // Strong and weak refcounting.
+  Subchannel* Ref(GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+  void Unref(GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+  Subchannel* WeakRef(GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+  void WeakUnref(GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+  // Attempts to return a strong ref when only the weak refcount is guaranteed
+  // non-zero. If the strong refcount is zero, does not alter the refcount and
+  // returns null.
+  Subchannel* RefFromWeakRef();
+
+  // Gets the string representing the subchannel address.
+  // Caller doesn't take ownership.
+  const char* GetTargetAddress();
+
+  const grpc_channel_args* channel_args() const { return args_; }
+
+  channelz::SubchannelNode* channelz_node();
+
+  // Returns the current connectivity state of the subchannel.
+  // If health_check_service_name is non-null, the returned connectivity
+  // state will be based on the state reported by the backend for that
+  // service name.
+  // If the return value is GRPC_CHANNEL_READY, also sets *connected_subchannel.
+  grpc_connectivity_state CheckConnectivityState(
+      const char* health_check_service_name,
+      RefCountedPtr<ConnectedSubchannel>* connected_subchannel);
+
+  // Starts watching the subchannel's connectivity state.
+  // The first callback to the watcher will be delivered when the
+  // subchannel's connectivity state becomes a value other than
+  // initial_state, which may happen immediately.
+  // Subsequent callbacks will be delivered as the subchannel's state
+  // changes.
+  // The watcher will be destroyed either when the subchannel is
+  // destroyed or when CancelConnectivityStateWatch() is called.
+  void WatchConnectivityState(
+      grpc_connectivity_state initial_state,
+      grpc_core::UniquePtr<char> health_check_service_name,
+      OrphanablePtr<ConnectivityStateWatcherInterface> watcher);
+
+  // Cancels a connectivity state watch.
+  // If the watcher has already been destroyed, this is a no-op.
+  void CancelConnectivityStateWatch(const char* health_check_service_name,
+                                    ConnectivityStateWatcherInterface* watcher);
+
+  // Attempt to connect to the backend.  Has no effect if already connected.
+  void AttemptToConnect();
+
+  // Resets the connection backoff of the subchannel.
+  // TODO(roth): Move connection backoff out of subchannels and up into LB
+  // policy code (probably by adding a SubchannelGroup between
+  // SubchannelList and SubchannelData), at which point this method can
+  // go away.
+  void ResetBackoff();
+
+  // Returns a new channel arg encoding the subchannel address as a URI
+  // string. Caller is responsible for freeing the string.
+  static grpc_arg CreateSubchannelAddressArg(const grpc_resolved_address* addr);
+
+  // Returns the URI string from the subchannel address arg in \a args.
+  static const char* GetUriFromSubchannelAddressArg(
+      const grpc_channel_args* args);
+
+  // Sets \a addr from the subchannel address arg in \a args.
+  static void GetAddressFromSubchannelAddressArg(const grpc_channel_args* args,
+                                                 grpc_resolved_address* addr);
+
+ private:
+  // A linked list of ConnectivityStateWatcherInterfaces that are monitoring
+  // the subchannel's state.
+  class ConnectivityStateWatcherList {
+   public:
+    ~ConnectivityStateWatcherList() { Clear(); }
+
+    void AddWatcherLocked(
+        OrphanablePtr<ConnectivityStateWatcherInterface> watcher);
+    void RemoveWatcherLocked(ConnectivityStateWatcherInterface* watcher);
+
+    // Notifies all watchers in the list about a change to state.
+    void NotifyLocked(Subchannel* subchannel, grpc_connectivity_state state);
+
+    void Clear() { watchers_.clear(); }
+
+    bool empty() const { return watchers_.empty(); }
+
+   private:
+    // TODO(roth): Once we can use C++-14 heterogeneous lookups, this can
+    // be a set instead of a map.
+    std::map<ConnectivityStateWatcherInterface*,
+             OrphanablePtr<ConnectivityStateWatcherInterface>>
+        watchers_;
+  };
+
+  // A map that tracks ConnectivityStateWatcherInterfaces using a particular
+  // health check service name.
+  //
+  // There is one entry in the map for each health check service name.
+  // Entries exist only as long as there are watchers using the
+  // corresponding service name.
+  //
+  // A health check client is maintained only while the subchannel is in
+  // state READY.
+  class HealthWatcherMap {
+   public:
+    void AddWatcherLocked(
+        Subchannel* subchannel, grpc_connectivity_state initial_state,
+        grpc_core::UniquePtr<char> health_check_service_name,
+        OrphanablePtr<ConnectivityStateWatcherInterface> watcher);
+    void RemoveWatcherLocked(const char* health_check_service_name,
+                             ConnectivityStateWatcherInterface* watcher);
+
+    // Notifies the watcher when the subchannel's state changes.
+    void NotifyLocked(grpc_connectivity_state state);
+
+    grpc_connectivity_state CheckConnectivityStateLocked(
+        Subchannel* subchannel, const char* health_check_service_name);
+
+    void ShutdownLocked();
+
+   private:
+    class HealthWatcher;
+
+    std::map<const char*, OrphanablePtr<HealthWatcher>, StringLess> map_;
+  };
+
+  class ConnectedSubchannelStateWatcher;
+
+  // Sets the subchannel's connectivity state to \a state.
+  void SetConnectivityStateLocked(grpc_connectivity_state state);
+
+  // Methods for connection.
+  void MaybeStartConnectingLocked();
+  static void OnRetryAlarm(void* arg, grpc_error* error);
+  void ContinueConnectingLocked();
+  static void OnConnectingFinished(void* arg, grpc_error* error);
+  bool PublishTransportLocked();
+  void Disconnect();
+
+  gpr_atm RefMutate(gpr_atm delta,
+                    int barrier GRPC_SUBCHANNEL_REF_MUTATE_EXTRA_ARGS);
+
+  // The subchannel pool this subchannel is in.
+  RefCountedPtr<SubchannelPoolInterface> subchannel_pool_;
+  // TODO(juanlishen): Consider using args_ as key_ directly.
+  // Subchannel key that identifies this subchannel in the subchannel pool.
+  SubchannelKey* key_;
+  // Channel args.
+  grpc_channel_args* args_;
+  // pollset_set tracking who's interested in a connection being setup.
+  grpc_pollset_set* pollset_set_;
+  // Protects the other members.
+  Mutex mu_;
+  // Refcount
+  //    - lower INTERNAL_REF_BITS bits are for internal references:
+  //      these do not keep the subchannel open.
+  //    - upper remaining bits are for public references: these do
+  //      keep the subchannel open
+  gpr_atm ref_pair_;
+
+  // Connection states.
+  OrphanablePtr<SubchannelConnector> connector_;
+  // Set during connection.
+  SubchannelConnector::Result connecting_result_;
+  grpc_closure on_connecting_finished_;
+  // Active connection, or null.
+  RefCountedPtr<ConnectedSubchannel> connected_subchannel_;
+  bool connecting_ = false;
+  bool disconnected_ = false;
+
+  // Connectivity state tracking.
+  grpc_connectivity_state state_ = GRPC_CHANNEL_IDLE;
+  // The list of watchers without a health check service name.
+  ConnectivityStateWatcherList watcher_list_;
+  // The map of watchers with health check service names.
+  HealthWatcherMap health_watcher_map_;
+
+  // Backoff state.
+  BackOff backoff_;
+  grpc_millis next_attempt_deadline_;
+  grpc_millis min_connect_timeout_ms_;
+  bool backoff_begun_ = false;
+
+  // Retry alarm.
+  grpc_timer retry_alarm_;
+  grpc_closure on_retry_alarm_;
+  bool have_retry_alarm_ = false;
+  // reset_backoff() was called while alarm was pending.
+  bool retry_immediately_ = false;
+
+  // Channelz tracking.
+  RefCountedPtr<channelz::SubchannelNode> channelz_node_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/subchannel_interface.h

@@ -0,0 +1,94 @@
+/*
+ *
+ * Copyright 2019 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INTERFACE_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INTERFACE_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+
+namespace grpc_core {
+
+// The interface for subchannels that is exposed to LB policy implementations.
+class SubchannelInterface : public RefCounted<SubchannelInterface> {
+ public:
+  class ConnectivityStateWatcherInterface {
+   public:
+    virtual ~ConnectivityStateWatcherInterface() = default;
+
+    // Will be invoked whenever the subchannel's connectivity state
+    // changes.  There will be only one invocation of this method on a
+    // given watcher instance at any given time.
+    virtual void OnConnectivityStateChange(
+        grpc_connectivity_state new_state) = 0;
+
+    // TODO(roth): Remove this as soon as we move to EventManager-based
+    // polling.
+    virtual grpc_pollset_set* interested_parties() = 0;
+  };
+
+  template <typename TraceFlagT = TraceFlag>
+  explicit SubchannelInterface(TraceFlagT* trace_flag = nullptr)
+      : RefCounted<SubchannelInterface>(trace_flag) {}
+
+  virtual ~SubchannelInterface() = default;
+
+  // Returns the current connectivity state of the subchannel.
+  virtual grpc_connectivity_state CheckConnectivityState() = 0;
+
+  // Starts watching the subchannel's connectivity state.
+  // The first callback to the watcher will be delivered when the
+  // subchannel's connectivity state becomes a value other than
+  // initial_state, which may happen immediately.
+  // Subsequent callbacks will be delivered as the subchannel's state
+  // changes.
+  // The watcher will be destroyed either when the subchannel is
+  // destroyed or when CancelConnectivityStateWatch() is called.
+  // There can be only one watcher of a given subchannel.  It is not
+  // valid to call this method a second time without first cancelling
+  // the previous watcher using CancelConnectivityStateWatch().
+  virtual void WatchConnectivityState(
+      grpc_connectivity_state initial_state,
+      std::unique_ptr<ConnectivityStateWatcherInterface> watcher) = 0;
+
+  // Cancels a connectivity state watch.
+  // If the watcher has already been destroyed, this is a no-op.
+  virtual void CancelConnectivityStateWatch(
+      ConnectivityStateWatcherInterface* watcher) = 0;
+
+  // Attempt to connect to the backend.  Has no effect if already connected.
+  // If the subchannel is currently in backoff delay due to a previously
+  // failed attempt, the new connection attempt will not start until the
+  // backoff delay has elapsed.
+  virtual void AttemptToConnect() = 0;
+
+  // Resets the subchannel's connection backoff state.  If AttemptToConnect()
+  // has been called since the subchannel entered TRANSIENT_FAILURE state,
+  // starts a new connection attempt immediately; otherwise, a new connection
+  // attempt will be started as soon as AttemptToConnect() is called.
+  virtual void ResetBackoff() = 0;
+
+  // TODO(roth): Need a better non-grpc-specific abstraction here.
+  virtual const grpc_channel_args* channel_args() = 0;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INTERFACE_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/subchannel_pool_interface.h

@@ -0,0 +1,91 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_POOL_INTERFACE_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_POOL_INTERFACE_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/avl/avl.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+
+namespace grpc_core {
+
+class Subchannel;
+
+extern TraceFlag grpc_subchannel_pool_trace;
+
+// A key that can uniquely identify a subchannel.
+class SubchannelKey {
+ public:
+  explicit SubchannelKey(const grpc_channel_args* args);
+  ~SubchannelKey();
+
+  // Copyable.
+  SubchannelKey(const SubchannelKey& other);
+  SubchannelKey& operator=(const SubchannelKey& other);
+  // Not movable.
+  SubchannelKey(SubchannelKey&&) = delete;
+  SubchannelKey& operator=(SubchannelKey&&) = delete;
+
+  int Cmp(const SubchannelKey& other) const;
+
+ private:
+  // Initializes the subchannel key with the given \a args and the function to
+  // copy channel args.
+  void Init(
+      const grpc_channel_args* args,
+      grpc_channel_args* (*copy_channel_args)(const grpc_channel_args* args));
+
+  const grpc_channel_args* args_;
+};
+
+// Interface for subchannel pool.
+// TODO(juanlishen): This refcounting mechanism may lead to memory leak.
+// To solve that, we should force polling to flush any pending callbacks, then
+// shut down safely. See https://github.com/grpc/grpc/issues/12560.
+class SubchannelPoolInterface : public RefCounted<SubchannelPoolInterface> {
+ public:
+  SubchannelPoolInterface() : RefCounted(&grpc_subchannel_pool_trace) {}
+  virtual ~SubchannelPoolInterface() {}
+
+  // Registers a subchannel against a key. Returns the subchannel registered
+  // with \a key, which may be different from \a constructed because we reuse
+  // (instead of update) any existing subchannel already registered with \a key.
+  virtual Subchannel* RegisterSubchannel(SubchannelKey* key,
+                                         Subchannel* constructed) = 0;
+
+  // Removes the registered subchannel found by \a key.
+  virtual void UnregisterSubchannel(SubchannelKey* key) = 0;
+
+  // Finds the subchannel registered for the given subchannel key. Returns NULL
+  // if no such channel exists. Thread-safe.
+  virtual Subchannel* FindSubchannel(SubchannelKey* key) = 0;
+
+  // Creates a channel arg from \a subchannel pool.
+  static grpc_arg CreateChannelArg(SubchannelPoolInterface* subchannel_pool);
+
+  // Gets the subchannel pool from the channel args.
+  static SubchannelPoolInterface* GetSubchannelPoolFromChannelArgs(
+      const grpc_channel_args* args);
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_POOL_INTERFACE_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_api.h

@@ -0,0 +1,181 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_API_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_API_H
+
+#include <grpc/support/port_platform.h>
+
+#include <stdint.h>
+
+#include <grpc/slice_buffer.h>
+
+#include "src/core/ext/filters/client_channel/server_address.h"
+#include "src/core/ext/filters/client_channel/xds/xds_bootstrap.h"
+#include "src/core/ext/filters/client_channel/xds/xds_client_stats.h"
+
+namespace grpc_core {
+
+class XdsPriorityListUpdate {
+ public:
+  struct LocalityMap {
+    struct Locality {
+      bool operator==(const Locality& other) const {
+        return *name == *other.name && serverlist == other.serverlist &&
+               lb_weight == other.lb_weight && priority == other.priority;
+      }
+
+      // This comparator only compares the locality names.
+      struct Less {
+        bool operator()(const Locality& lhs, const Locality& rhs) const {
+          return XdsLocalityName::Less()(lhs.name, rhs.name);
+        }
+      };
+
+      RefCountedPtr<XdsLocalityName> name;
+      ServerAddressList serverlist;
+      uint32_t lb_weight;
+      uint32_t priority;
+    };
+
+    bool Contains(const RefCountedPtr<XdsLocalityName>& name) const {
+      return localities.find(name) != localities.end();
+    }
+
+    size_t size() const { return localities.size(); }
+
+    std::map<RefCountedPtr<XdsLocalityName>, Locality, XdsLocalityName::Less>
+        localities;
+  };
+
+  bool operator==(const XdsPriorityListUpdate& other) const;
+  bool operator!=(const XdsPriorityListUpdate& other) const {
+    return !(*this == other);
+  }
+
+  void Add(LocalityMap::Locality locality);
+
+  const LocalityMap* Find(uint32_t priority) const;
+
+  bool Contains(uint32_t priority) const {
+    return priority < priorities_.size();
+  }
+  bool Contains(const RefCountedPtr<XdsLocalityName>& name);
+
+  bool empty() const { return priorities_.empty(); }
+  size_t size() const { return priorities_.size(); }
+
+  // Callers should make sure the priority list is non-empty.
+  uint32_t LowestPriority() const {
+    return static_cast<uint32_t>(priorities_.size()) - 1;
+  }
+
+ private:
+  InlinedVector<LocalityMap, 2> priorities_;
+};
+
+// There are two phases of accessing this class's content:
+// 1. to initialize in the control plane combiner;
+// 2. to use in the data plane combiner.
+// So no additional synchronization is needed.
+class XdsDropConfig : public RefCounted<XdsDropConfig> {
+ public:
+  struct DropCategory {
+    bool operator==(const DropCategory& other) const {
+      return strcmp(name.get(), other.name.get()) == 0 &&
+             parts_per_million == other.parts_per_million;
+    }
+
+    grpc_core::UniquePtr<char> name;
+    const uint32_t parts_per_million;
+  };
+
+  using DropCategoryList = InlinedVector<DropCategory, 2>;
+
+  void AddCategory(grpc_core::UniquePtr<char> name,
+                   uint32_t parts_per_million) {
+    drop_category_list_.emplace_back(
+        DropCategory{std::move(name), parts_per_million});
+  }
+
+  // The only method invoked from the data plane combiner.
+  bool ShouldDrop(const grpc_core::UniquePtr<char>** category_name) const;
+
+  const DropCategoryList& drop_category_list() const {
+    return drop_category_list_;
+  }
+
+  bool operator==(const XdsDropConfig& other) const {
+    return drop_category_list_ == other.drop_category_list_;
+  }
+  bool operator!=(const XdsDropConfig& other) const {
+    return !(*this == other);
+  }
+
+ private:
+  DropCategoryList drop_category_list_;
+};
+
+struct EdsUpdate {
+  XdsPriorityListUpdate priority_list_update;
+  RefCountedPtr<XdsDropConfig> drop_config;
+  bool drop_all = false;
+};
+
+struct CdsUpdate {
+  // The name to use in the EDS request.
+  // If null, the cluster name will be used.
+  grpc_core::UniquePtr<char> eds_service_name;
+  // The LRS server to use for load reporting.
+  // If null, load reporting will be disabled.
+  // If set to the empty string, will use the same server we obtained
+  // the CDS data from.
+  grpc_core::UniquePtr<char> lrs_load_reporting_server_name;
+};
+
+// Creates an EDS request querying \a service_name.
+grpc_slice XdsEdsRequestCreateAndEncode(const char* server_name,
+                                        const XdsBootstrap::Node* node,
+                                        const char* build_version);
+
+// Parses the EDS response and returns the args to update locality map. If there
+// is any error, the output update is invalid.
+grpc_error* XdsEdsResponseDecodeAndParse(const grpc_slice& encoded_response,
+                                         EdsUpdate* update);
+
+// Creates an LRS request querying \a server_name.
+grpc_slice XdsLrsRequestCreateAndEncode(const char* server_name,
+                                        const XdsBootstrap::Node* node,
+                                        const char* build_version);
+
+// Creates an LRS request sending client-side load reports. If all the counters
+// in \a client_stats are zero, returns empty slice.
+grpc_slice XdsLrsRequestCreateAndEncode(const char* server_name,
+                                        XdsClientStats* client_stats);
+
+// Parses the LRS response and returns \a cluster_name and \a
+// load_reporting_interval for client-side load reporting. If there is any
+// error, the output config is invalid.
+grpc_error* XdsLrsResponseDecodeAndParse(
+    const grpc_slice& encoded_response,
+    grpc_core::UniquePtr<char>* cluster_name,
+    grpc_millis* load_reporting_interval);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_API_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_bootstrap.h

@@ -0,0 +1,104 @@
+//
+// Copyright 2019 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H
+
+#include <grpc/support/port_platform.h>
+
+#include <vector>
+
+#include <grpc/impl/codegen/slice.h>
+
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/map.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/iomgr/error.h"
+#include "src/core/lib/json/json.h"
+
+namespace grpc_core {
+
+class XdsBootstrap {
+ public:
+  struct MetadataValue {
+    enum class Type { MD_NULL, DOUBLE, STRING, BOOL, STRUCT, LIST };
+    Type type = Type::MD_NULL;
+    // TODO(roth): Once we can use C++17, these can be in a std::variant.
+    double double_value;
+    const char* string_value;
+    bool bool_value;
+    std::map<const char*, MetadataValue, StringLess> struct_value;
+    std::vector<MetadataValue> list_value;
+  };
+
+  struct Node {
+    const char* id = nullptr;
+    const char* cluster = nullptr;
+    const char* locality_region = nullptr;
+    const char* locality_zone = nullptr;
+    const char* locality_subzone = nullptr;
+    std::map<const char*, MetadataValue, StringLess> metadata;
+  };
+
+  struct ChannelCreds {
+    const char* type = nullptr;
+    grpc_json* config = nullptr;
+  };
+
+  struct XdsServer {
+    const char* server_uri = nullptr;
+    InlinedVector<ChannelCreds, 1> channel_creds;
+  };
+
+  // If *error is not GRPC_ERROR_NONE after returning, then there was an
+  // error reading the file.
+  static std::unique_ptr<XdsBootstrap> ReadFromFile(grpc_error** error);
+
+  // Do not instantiate directly -- use ReadFromFile() above instead.
+  XdsBootstrap(grpc_slice contents, grpc_error** error);
+  ~XdsBootstrap();
+
+  // TODO(roth): We currently support only one server. Fix this when we
+  // add support for fallback for the xds channel.
+  const XdsServer& server() const { return servers_[0]; }
+  const Node* node() const { return node_.get(); }
+
+ private:
+  grpc_error* ParseXdsServerList(grpc_json* json);
+  grpc_error* ParseXdsServer(grpc_json* json, size_t idx);
+  grpc_error* ParseChannelCredsArray(grpc_json* json, XdsServer* server);
+  grpc_error* ParseChannelCreds(grpc_json* json, size_t idx, XdsServer* server);
+  grpc_error* ParseNode(grpc_json* json);
+  grpc_error* ParseLocality(grpc_json* json);
+
+  InlinedVector<grpc_error*, 1> ParseMetadataStruct(
+      grpc_json* json,
+      std::map<const char*, MetadataValue, StringLess>* result);
+  InlinedVector<grpc_error*, 1> ParseMetadataList(
+      grpc_json* json, std::vector<MetadataValue>* result);
+  grpc_error* ParseMetadataValue(grpc_json* json, size_t idx,
+                                 MetadataValue* result);
+
+  grpc_slice contents_;
+  grpc_json* tree_ = nullptr;
+
+  InlinedVector<XdsServer, 1> servers_;
+  std::unique_ptr<Node> node_;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_BOOTSTRAP_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_channel.h

@@ -0,0 +1,44 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/ext/filters/client_channel/xds/xds_bootstrap.h"
+
+namespace grpc_core {
+
+/// Makes any necessary modifications to \a args for use in the xds
+/// balancer channel.
+///
+/// Takes ownership of \a args.
+///
+/// Caller takes ownership of the returned args.
+grpc_channel_args* ModifyXdsChannelArgs(grpc_channel_args* args);
+
+grpc_channel* CreateXdsChannel(const XdsBootstrap& bootstrap,
+                               const grpc_channel_args& args);
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_channel_args.h

@@ -0,0 +1,26 @@
+//
+// Copyright 2019 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_ARGS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_ARGS_H
+
+// Boolean channel arg indicating whether the target is an xds server.
+#define GRPC_ARG_ADDRESS_IS_XDS_SERVER "grpc.address_is_xds_server"
+
+// Pointer channel arg containing a ref to the XdsClient object.
+#define GRPC_ARG_XDS_CLIENT "grpc.xds_client"
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CHANNEL_ARGS_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_client.h

@@ -0,0 +1,226 @@
+//
+// Copyright 2019 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_H
+
+#include <grpc/support/port_platform.h>
+
+#include <set>
+
+#include "src/core/ext/filters/client_channel/service_config.h"
+#include "src/core/ext/filters/client_channel/xds/xds_api.h"
+#include "src/core/ext/filters/client_channel/xds/xds_bootstrap.h"
+#include "src/core/ext/filters/client_channel/xds/xds_client_stats.h"
+#include "src/core/lib/gprpp/map.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/ref_counted_ptr.h"
+#include "src/core/lib/gprpp/string_view.h"
+#include "src/core/lib/iomgr/combiner.h"
+
+namespace grpc_core {
+
+extern TraceFlag xds_client_trace;
+
+class XdsClient : public InternallyRefCounted<XdsClient> {
+ public:
+  // Service config watcher interface.  Implemented by callers.
+  class ServiceConfigWatcherInterface {
+   public:
+    virtual ~ServiceConfigWatcherInterface() = default;
+
+    virtual void OnServiceConfigChanged(
+        RefCountedPtr<ServiceConfig> service_config) = 0;
+
+    virtual void OnError(grpc_error* error) = 0;
+  };
+
+  // Cluster data watcher interface.  Implemented by callers.
+  class ClusterWatcherInterface {
+   public:
+    virtual ~ClusterWatcherInterface() = default;
+
+    virtual void OnClusterChanged(CdsUpdate cluster_data) = 0;
+
+    virtual void OnError(grpc_error* error) = 0;
+  };
+
+  // Endpoint data watcher interface.  Implemented by callers.
+  class EndpointWatcherInterface {
+   public:
+    virtual ~EndpointWatcherInterface() = default;
+
+    virtual void OnEndpointChanged(EdsUpdate update) = 0;
+
+    virtual void OnError(grpc_error* error) = 0;
+  };
+
+  // If *error is not GRPC_ERROR_NONE after construction, then there was
+  // an error initializing the client.
+  XdsClient(Combiner* combiner, grpc_pollset_set* interested_parties,
+            StringView server_name,
+            std::unique_ptr<ServiceConfigWatcherInterface> watcher,
+            const grpc_channel_args& channel_args, grpc_error** error);
+  ~XdsClient();
+
+  void Orphan() override;
+
+  // Start and cancel cluster data watch for a cluster.
+  // The XdsClient takes ownership of the watcher, but the caller may
+  // keep a raw pointer to the watcher, which may be used only for
+  // cancellation.  (Because the caller does not own the watcher, the
+  // pointer must not be used for any other purpose.)
+  void WatchClusterData(StringView cluster,
+                        std::unique_ptr<ClusterWatcherInterface> watcher);
+  void CancelClusterDataWatch(StringView cluster,
+                              ClusterWatcherInterface* watcher);
+
+  // Start and cancel endpoint data watch for a cluster.
+  // The XdsClient takes ownership of the watcher, but the caller may
+  // keep a raw pointer to the watcher, which may be used only for
+  // cancellation.  (Because the caller does not own the watcher, the
+  // pointer must not be used for any other purpose.)
+  void WatchEndpointData(StringView cluster,
+                         std::unique_ptr<EndpointWatcherInterface> watcher);
+  void CancelEndpointDataWatch(StringView cluster,
+                               EndpointWatcherInterface* watcher);
+
+  // Adds and removes client stats for cluster.
+  void AddClientStats(StringView lrs_server, StringView cluster,
+                      XdsClientStats* client_stats);
+  void RemoveClientStats(StringView lrs_server, StringView cluster,
+                         XdsClientStats* client_stats);
+
+  // Resets connection backoff state.
+  void ResetBackoff();
+
+  // Helpers for encoding the XdsClient object in channel args.
+  grpc_arg MakeChannelArg() const;
+  static RefCountedPtr<XdsClient> GetFromChannelArgs(
+      const grpc_channel_args& args);
+
+ private:
+  // Contains a channel to the xds server and all the data related to the
+  // channel.  Holds a ref to the xds client object.
+  // TODO(roth): This is separate from the XdsClient object because it was
+  // originally designed to be able to swap itself out in case the
+  // balancer name changed.  Now that the balancer name is going to be
+  // coming from the bootstrap file, we don't really need this level of
+  // indirection unless we decide to support watching the bootstrap file
+  // for changes.  At some point, if we decide that we're never going to
+  // need to do that, then we can eliminate this class and move its
+  // contents directly into the XdsClient class.
+  class ChannelState : public InternallyRefCounted<ChannelState> {
+   public:
+    template <typename T>
+    class RetryableCall;
+
+    class AdsCallState;
+    class LrsCallState;
+
+    ChannelState(RefCountedPtr<XdsClient> xds_client,
+                 const grpc_channel_args& args);
+    ~ChannelState();
+
+    void Orphan() override;
+
+    grpc_channel* channel() const { return channel_; }
+    XdsClient* xds_client() const { return xds_client_.get(); }
+    AdsCallState* ads_calld() const;
+    LrsCallState* lrs_calld() const;
+
+    void MaybeStartAdsCall();
+    void StopAdsCall();
+
+    void MaybeStartLrsCall();
+    void StopLrsCall();
+
+    bool HasActiveAdsCall() const;
+
+    void StartConnectivityWatchLocked();
+    void CancelConnectivityWatchLocked();
+
+   private:
+    class StateWatcher;
+
+    // The owning xds client.
+    RefCountedPtr<XdsClient> xds_client_;
+
+    // The channel and its status.
+    grpc_channel* channel_;
+    bool shutting_down_ = false;
+    StateWatcher* watcher_ = nullptr;
+
+    // The retryable XDS calls.
+    OrphanablePtr<RetryableCall<AdsCallState>> ads_calld_;
+    OrphanablePtr<RetryableCall<LrsCallState>> lrs_calld_;
+  };
+
+  struct ClusterState {
+    std::map<ClusterWatcherInterface*, std::unique_ptr<ClusterWatcherInterface>>
+        cluster_watchers;
+    std::map<EndpointWatcherInterface*,
+             std::unique_ptr<EndpointWatcherInterface>>
+        endpoint_watchers;
+    std::set<XdsClientStats*> client_stats;
+    // The latest data seen from EDS.
+    EdsUpdate eds_update;
+  };
+
+  // Sends an error notification to all watchers.
+  void NotifyOnError(grpc_error* error);
+
+  // TODO(juanlishen): Once we implement LDS support, this can be a
+  // normal method instead of a closure callback.
+  static void NotifyOnServiceConfig(void* arg, grpc_error* error);
+
+  // Channel arg vtable functions.
+  static void* ChannelArgCopy(void* p);
+  static void ChannelArgDestroy(void* p);
+  static int ChannelArgCmp(void* p, void* q);
+
+  static const grpc_arg_pointer_vtable kXdsClientVtable;
+
+  grpc_core::UniquePtr<char> build_version_;
+
+  Combiner* combiner_;
+  grpc_pollset_set* interested_parties_;
+
+  std::unique_ptr<XdsBootstrap> bootstrap_;
+
+  grpc_core::UniquePtr<char> server_name_;
+  std::unique_ptr<ServiceConfigWatcherInterface> service_config_watcher_;
+  // TODO(juanlishen): Once we implement LDS support, this will no
+  // longer be needed.
+  grpc_closure service_config_notify_;
+
+  // The channel for communicating with the xds server.
+  OrphanablePtr<ChannelState> chand_;
+
+  // TODO(juanlishen): As part of adding CDS support, replace
+  // cluster_state_ with a map keyed by cluster name, so that we can
+  // support multiple clusters for both CDS and EDS.
+  ClusterState cluster_state_;
+  // Map<StringView /*cluster*/, ClusterState, StringLess> clusters_;
+
+  bool shutting_down_ = false;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/client_channel/xds/xds_client_stats.h

@@ -0,0 +1,232 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_STATS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_STATS_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/gprpp/atomic.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
+#include "src/core/lib/gprpp/map.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/ref_counted.h"
+#include "src/core/lib/gprpp/sync.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+
+namespace grpc_core {
+
+class XdsLocalityName : public RefCounted<XdsLocalityName> {
+ public:
+  struct Less {
+    bool operator()(const RefCountedPtr<XdsLocalityName>& lhs,
+                    const RefCountedPtr<XdsLocalityName>& rhs) const {
+      int cmp_result = strcmp(lhs->region_.get(), rhs->region_.get());
+      if (cmp_result != 0) return cmp_result < 0;
+      cmp_result = strcmp(lhs->zone_.get(), rhs->zone_.get());
+      if (cmp_result != 0) return cmp_result < 0;
+      return strcmp(lhs->sub_zone_.get(), rhs->sub_zone_.get()) < 0;
+    }
+  };
+
+  XdsLocalityName(grpc_core::UniquePtr<char> region,
+                  grpc_core::UniquePtr<char> zone,
+                  grpc_core::UniquePtr<char> subzone)
+      : region_(std::move(region)),
+        zone_(std::move(zone)),
+        sub_zone_(std::move(subzone)) {}
+
+  bool operator==(const XdsLocalityName& other) const {
+    return strcmp(region_.get(), other.region_.get()) == 0 &&
+           strcmp(zone_.get(), other.zone_.get()) == 0 &&
+           strcmp(sub_zone_.get(), other.sub_zone_.get()) == 0;
+  }
+
+  const char* region() const { return region_.get(); }
+  const char* zone() const { return zone_.get(); }
+  const char* sub_zone() const { return sub_zone_.get(); }
+
+  const char* AsHumanReadableString() {
+    if (human_readable_string_ == nullptr) {
+      char* tmp;
+      gpr_asprintf(&tmp, "{region=\"%s\", zone=\"%s\", sub_zone=\"%s\"}",
+                   region_.get(), zone_.get(), sub_zone_.get());
+      human_readable_string_.reset(tmp);
+    }
+    return human_readable_string_.get();
+  }
+
+ private:
+  grpc_core::UniquePtr<char> region_;
+  grpc_core::UniquePtr<char> zone_;
+  grpc_core::UniquePtr<char> sub_zone_;
+  grpc_core::UniquePtr<char> human_readable_string_;
+};
+
+// The stats classes (i.e., XdsClientStats, LocalityStats, and LoadMetric) can
+// be taken a snapshot (and reset) to populate the load report. The snapshots
+// are contained in the respective Snapshot structs. The Snapshot structs have
+// no synchronization. The stats classes use several different synchronization
+// methods. 1. Most of the counters are Atomic<>s for performance. 2. Some of
+// the Map<>s are protected by Mutex if we are not guaranteed that the accesses
+// to them are synchronized by the callers. 3. The Map<>s to which the accesses
+// are already synchronized by the callers do not have additional
+// synchronization here. Note that the Map<>s we mentioned in 2 and 3 refer to
+// the map's tree structure rather than the content in each tree node.
+class XdsClientStats {
+ public:
+  class LocalityStats : public RefCounted<LocalityStats> {
+   public:
+    class LoadMetric {
+     public:
+      struct Snapshot {
+        bool IsAllZero() const;
+
+        uint64_t num_requests_finished_with_metric;
+        double total_metric_value;
+      };
+
+      // Returns a snapshot of this instance and reset all the accumulative
+      // counters.
+      Snapshot GetSnapshotAndReset();
+
+     private:
+      uint64_t num_requests_finished_with_metric_{0};
+      double total_metric_value_{0};
+    };
+
+    using LoadMetricMap =
+        std::map<grpc_core::UniquePtr<char>, LoadMetric, StringLess>;
+    using LoadMetricSnapshotMap =
+        std::map<grpc_core::UniquePtr<char>, LoadMetric::Snapshot, StringLess>;
+
+    struct Snapshot {
+      // TODO(juanlishen): Change this to const method when const_iterator is
+      // added to Map<>.
+      bool IsAllZero();
+
+      uint64_t total_successful_requests;
+      uint64_t total_requests_in_progress;
+      uint64_t total_error_requests;
+      uint64_t total_issued_requests;
+      LoadMetricSnapshotMap load_metric_stats;
+    };
+
+    // Returns a snapshot of this instance and reset all the accumulative
+    // counters.
+    Snapshot GetSnapshotAndReset();
+
+    // Each XdsLb::PickerWrapper holds a ref to the perspective LocalityStats.
+    // If the refcount is 0, there won't be new calls recorded to the
+    // LocalityStats, so the LocalityStats can be safely deleted when all the
+    // in-progress calls have finished.
+    // Only be called from the control plane combiner.
+    void RefByPicker() { picker_refcount_.FetchAdd(1, MemoryOrder::ACQ_REL); }
+    // Might be called from the control plane combiner or the data plane
+    // combiner.
+    // TODO(juanlishen): Once https://github.com/grpc/grpc/pull/19390 is merged,
+    //  this method will also only be invoked in the control plane combiner.
+    //  We may then be able to simplify the LocalityStats' lifetime by making it
+    //  RefCounted<> and populating the protobuf in its dtor.
+    void UnrefByPicker() { picker_refcount_.FetchSub(1, MemoryOrder::ACQ_REL); }
+    // Only be called from the control plane combiner.
+    // The only place where the picker_refcount_ can be increased is
+    // RefByPicker(), which also can only be called from the control plane
+    // combiner. Also, if the picker_refcount_ is 0, total_requests_in_progress_
+    // can't be increased from 0. So it's safe to delete the LocalityStats right
+    // after this method returns true.
+    bool IsSafeToDelete() {
+      return picker_refcount_.FetchAdd(0, MemoryOrder::ACQ_REL) == 0 &&
+             total_requests_in_progress_.FetchAdd(0, MemoryOrder::ACQ_REL) == 0;
+    }
+
+    void AddCallStarted();
+    void AddCallFinished(bool fail = false);
+
+   private:
+    Atomic<uint64_t> total_successful_requests_{0};
+    Atomic<uint64_t> total_requests_in_progress_{0};
+    // Requests that were issued (not dropped) but failed.
+    Atomic<uint64_t> total_error_requests_{0};
+    Atomic<uint64_t> total_issued_requests_{0};
+    // Protects load_metric_stats_. A mutex is necessary because the length of
+    // load_metric_stats_ can be accessed by both the callback intercepting the
+    // call's recv_trailing_metadata (not from any combiner) and the load
+    // reporting thread (from the control plane combiner).
+    Mutex load_metric_stats_mu_;
+    LoadMetricMap load_metric_stats_;
+    // Can be accessed from either the control plane combiner or the data plane
+    // combiner.
+    Atomic<uint8_t> picker_refcount_{0};
+  };
+
+  // TODO(juanlishen): The value type of Map<> must be movable in current
+  // implementation. To avoid making LocalityStats movable, we wrap it by
+  // std::unique_ptr<>. We should remove this wrapper if the value type of Map<>
+  // doesn't have to be movable.
+  using LocalityStatsMap =
+      std::map<RefCountedPtr<XdsLocalityName>, RefCountedPtr<LocalityStats>,
+               XdsLocalityName::Less>;
+  using LocalityStatsSnapshotMap =
+      std::map<RefCountedPtr<XdsLocalityName>, LocalityStats::Snapshot,
+               XdsLocalityName::Less>;
+  using DroppedRequestsMap =
+      std::map<grpc_core::UniquePtr<char>, uint64_t, StringLess>;
+  using DroppedRequestsSnapshotMap = DroppedRequestsMap;
+
+  struct Snapshot {
+    // TODO(juanlishen): Change this to const method when const_iterator is
+    // added to Map<>.
+    bool IsAllZero();
+
+    LocalityStatsSnapshotMap upstream_locality_stats;
+    uint64_t total_dropped_requests;
+    DroppedRequestsSnapshotMap dropped_requests;
+    // The actual load report interval.
+    grpc_millis load_report_interval;
+  };
+
+  // Returns a snapshot of this instance and reset all the accumulative
+  // counters.
+  Snapshot GetSnapshotAndReset();
+
+  void MaybeInitLastReportTime();
+  RefCountedPtr<LocalityStats> FindLocalityStats(
+      const RefCountedPtr<XdsLocalityName>& locality_name);
+  void PruneLocalityStats();
+  void AddCallDropped(const grpc_core::UniquePtr<char>& category);
+
+ private:
+  // The stats for each locality.
+  LocalityStatsMap upstream_locality_stats_;
+  Atomic<uint64_t> total_dropped_requests_{0};
+  // Protects dropped_requests_. A mutex is necessary because the length of
+  // dropped_requests_ can be accessed by both the picker (from data plane
+  // combiner) and the load reporting thread (from the control plane combiner).
+  Mutex dropped_requests_mu_;
+  DroppedRequestsMap dropped_requests_;
+  // The timestamp of last reporting. For the LB-policy-wide first report, the
+  // last_report_time is the time we scheduled the first reporting timer.
+  grpc_millis last_report_time_ = -1;
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_XDS_XDS_CLIENT_STATS_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/deadline/deadline_filter.h

@@ -0,0 +1,90 @@
+//
+// Copyright 2016 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_DEADLINE_DEADLINE_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_DEADLINE_DEADLINE_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/iomgr/timer.h"
+
+enum grpc_deadline_timer_state {
+  GRPC_DEADLINE_STATE_INITIAL,
+  GRPC_DEADLINE_STATE_PENDING,
+  GRPC_DEADLINE_STATE_FINISHED
+};
+
+// State used for filters that enforce call deadlines.
+// Must be the first field in the filter's call_data.
+struct grpc_deadline_state {
+  grpc_deadline_state(grpc_call_element* elem, grpc_call_stack* call_stack,
+                      grpc_core::CallCombiner* call_combiner,
+                      grpc_millis deadline);
+  ~grpc_deadline_state();
+
+  // We take a reference to the call stack for the timer callback.
+  grpc_call_stack* call_stack;
+  grpc_core::CallCombiner* call_combiner;
+  grpc_deadline_timer_state timer_state = GRPC_DEADLINE_STATE_INITIAL;
+  grpc_timer timer;
+  grpc_closure timer_callback;
+  // Closure to invoke when we receive trailing metadata.
+  // We use this to cancel the timer.
+  grpc_closure recv_trailing_metadata_ready;
+  // The original recv_trailing_metadata_ready closure, which we chain to
+  // after our own closure is invoked.
+  grpc_closure* original_recv_trailing_metadata_ready;
+};
+
+//
+// NOTE: All of these functions require that the first field in
+// elem->call_data is a grpc_deadline_state.
+//
+
+// Cancels the existing timer and starts a new one with new_deadline.
+//
+// Note: It is generally safe to call this with an earlier deadline
+// value than the current one, but not the reverse.  No checks are done
+// to ensure that the timer callback is not invoked while it is in the
+// process of being reset, which means that attempting to increase the
+// deadline may result in the timer being called twice.
+//
+// Note: Must be called while holding the call combiner.
+void grpc_deadline_state_reset(grpc_call_element* elem,
+                               grpc_millis new_deadline);
+
+// To be called from the client-side filter's start_transport_stream_op_batch()
+// method.  Ensures that the deadline timer is cancelled when the call
+// is completed.
+//
+// Note: It is the caller's responsibility to chain to the next filter if
+// necessary after this function returns.
+//
+// Note: Must be called while holding the call combiner.
+void grpc_deadline_state_client_start_transport_stream_op_batch(
+    grpc_call_element* elem, grpc_transport_stream_op_batch* op);
+
+// Should deadline checking be performed (according to channel args)
+bool grpc_deadline_checking_enabled(const grpc_channel_args* args);
+
+// Deadline filters for direct client channels and server channels.
+// Note: Deadlines for non-direct client channels are handled by the
+// client_channel filter.
+extern const grpc_channel_filter grpc_client_deadline_filter;
+extern const grpc_channel_filter grpc_server_deadline_filter;
+
+#endif /* GRPC_CORE_EXT_FILTERS_DEADLINE_DEADLINE_FILTER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/http/client/http_client_filter.h

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+/*
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_HTTP_CLIENT_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_HTTP_CLIENT_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+
+/* Processes metadata on the client side for HTTP2 transports */
+extern const grpc_channel_filter grpc_http_client_filter;
+
+/* Channel arg to determine maximum size of payload eligible for GET request */
+#define GRPC_ARG_MAX_PAYLOAD_SIZE_FOR_GET "grpc.max_payload_size_for_get"
+
+#endif /* GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_HTTP_CLIENT_FILTER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/http/client_authority_filter.h

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+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_AUTHORITY_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_AUTHORITY_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/compression_types.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+
+/// Filter responsible for setting the authority header, if not already set. It
+/// uses the value of the GRPC_ARG_DEFAULT_AUTHORITY channel arg if the initial
+/// metadata doesn't already contain an authority value.
+
+extern const grpc_channel_filter grpc_client_authority_filter;
+
+#endif /* GRPC_CORE_EXT_FILTERS_HTTP_CLIENT_AUTHORITY_FILTER_H */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/http/message_compress/message_compress_filter.h

@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/impl/codegen/compression_types.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+
+/** Compression filter for outgoing data.
+ *
+ * See <grpc/compression.h> for the available compression settings.
+ *
+ * Compression settings may come from:
+ *  - Channel configuration, as established at channel creation time.
+ *  - The metadata accompanying the outgoing data to be compressed. This is
+ *    taken as a request only. We may choose not to honor it. The metadata key
+ *    is given by \a GRPC_COMPRESSION_REQUEST_ALGORITHM_MD_KEY.
+ *
+ * Compression can be disabled for concrete messages (for instance in order to
+ * prevent CRIME/BEAST type attacks) by having the GRPC_WRITE_NO_COMPRESS set in
+ * the BEGIN_MESSAGE flags.
+ *
+ * The attempted compression mechanism is added to the resulting initial
+ * metadata under the'grpc-encoding' key.
+ *
+ * If compression is actually performed, BEGIN_MESSAGE's flag is modified to
+ * incorporate GRPC_WRITE_INTERNAL_COMPRESS. Otherwise, and regardless of the
+ * aforementioned 'grpc-encoding' metadata value, data will pass through
+ * uncompressed. */
+
+extern const grpc_channel_filter grpc_message_compress_filter;
+
+#endif /* GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H \
+        */

videochat2/lib/python3.10/site-packages/tensorflow/include/external/com_github_grpc_grpc/src/core/ext/filters/http/server/http_server_filter.h

@@ -0,0 +1,29 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_HTTP_SERVER_HTTP_SERVER_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_HTTP_SERVER_HTTP_SERVER_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/channel/channel_stack.h"
+
+/* Processes metadata on the server side for HTTP2 transports */
+extern const grpc_channel_filter grpc_http_server_filter;
+
+#endif /* GRPC_CORE_EXT_FILTERS_HTTP_SERVER_HTTP_SERVER_FILTER_H */