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nats-io/go-nats
nats.go
processExpectedInfo
func (nc *Conn) processExpectedInfo() error { c := &control{} // Read the protocol err := nc.readOp(c) if err != nil { return err } // The nats protocol should send INFO first always. if c.op != _INFO_OP_ { return ErrNoInfoReceived } // Parse the protocol if err := nc.processInfo(c.args); err != nil {...
go
func (nc *Conn) processExpectedInfo() error { c := &control{} // Read the protocol err := nc.readOp(c) if err != nil { return err } // The nats protocol should send INFO first always. if c.op != _INFO_OP_ { return ErrNoInfoReceived } // Parse the protocol if err := nc.processInfo(c.args); err != nil {...
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// processExpectedInfo will look for the expected first INFO message // sent when a connection is established. The lock should be held entering.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1464-L1489
train
nats-io/go-nats
nats.go
sendProto
func (nc *Conn) sendProto(proto string) { nc.mu.Lock() nc.bw.WriteString(proto) nc.kickFlusher() nc.mu.Unlock() }
go
func (nc *Conn) sendProto(proto string) { nc.mu.Lock() nc.bw.WriteString(proto) nc.kickFlusher() nc.mu.Unlock() }
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// Sends a protocol control message by queuing into the bufio writer // and kicking the flush Go routine. These writes are protected.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1493-L1498
train
nats-io/go-nats
nats.go
normalizeErr
func normalizeErr(line string) string { s := strings.TrimSpace(strings.TrimPrefix(line, _ERR_OP_)) s = strings.TrimLeft(strings.TrimRight(s, "'"), "'") return s }
go
func normalizeErr(line string) string { s := strings.TrimSpace(strings.TrimPrefix(line, _ERR_OP_)) s = strings.TrimLeft(strings.TrimRight(s, "'"), "'") return s }
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// normalizeErr removes the prefix -ERR, trim spaces and remove the quotes.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1572-L1576
train
nats-io/go-nats
nats.go
readProto
func (nc *Conn) readProto() (string, error) { var ( _buf = [10]byte{} buf = _buf[:0] b = [1]byte{} protoEnd = byte('\n') ) for { if _, err := nc.conn.Read(b[:1]); err != nil { // Do not report EOF error if err == io.EOF { return string(buf), nil } return "", err } buf = ...
go
func (nc *Conn) readProto() (string, error) { var ( _buf = [10]byte{} buf = _buf[:0] b = [1]byte{} protoEnd = byte('\n') ) for { if _, err := nc.conn.Read(b[:1]); err != nil { // Do not report EOF error if err == io.EOF { return string(buf), nil } return "", err } buf = ...
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// reads a protocol one byte at a time.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1650-L1670
train
nats-io/go-nats
nats.go
readOp
func (nc *Conn) readOp(c *control) error { br := bufio.NewReaderSize(nc.conn, defaultBufSize) line, err := br.ReadString('\n') if err != nil { return err } parseControl(line, c) return nil }
go
func (nc *Conn) readOp(c *control) error { br := bufio.NewReaderSize(nc.conn, defaultBufSize) line, err := br.ReadString('\n') if err != nil { return err } parseControl(line, c) return nil }
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// Read a control line and process the intended op.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1678-L1686
train
nats-io/go-nats
nats.go
parseControl
func parseControl(line string, c *control) { toks := strings.SplitN(line, _SPC_, 2) if len(toks) == 1 { c.op = strings.TrimSpace(toks[0]) c.args = _EMPTY_ } else if len(toks) == 2 { c.op, c.args = strings.TrimSpace(toks[0]), strings.TrimSpace(toks[1]) } else { c.op = _EMPTY_ } }
go
func parseControl(line string, c *control) { toks := strings.SplitN(line, _SPC_, 2) if len(toks) == 1 { c.op = strings.TrimSpace(toks[0]) c.args = _EMPTY_ } else if len(toks) == 2 { c.op, c.args = strings.TrimSpace(toks[0]), strings.TrimSpace(toks[1]) } else { c.op = _EMPTY_ } }
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// Parse a control line from the server.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1689-L1699
train
nats-io/go-nats
nats.go
flushReconnectPendingItems
func (nc *Conn) flushReconnectPendingItems() { if nc.pending == nil { return } if nc.pending.Len() > 0 { nc.bw.Write(nc.pending.Bytes()) } }
go
func (nc *Conn) flushReconnectPendingItems() { if nc.pending == nil { return } if nc.pending.Len() > 0 { nc.bw.Write(nc.pending.Bytes()) } }
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// flushReconnectPending will push the pending items that were // gathered while we were in a RECONNECTING state to the socket.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1703-L1710
train
nats-io/go-nats
nats.go
doReconnect
func (nc *Conn) doReconnect() { // We want to make sure we have the other watchers shutdown properly // here before we proceed past this point. nc.waitForExits() // FIXME(dlc) - We have an issue here if we have // outstanding flush points (pongs) and they were not // sent out, but are still in the pipe. // Hol...
go
func (nc *Conn) doReconnect() { // We want to make sure we have the other watchers shutdown properly // here before we proceed past this point. nc.waitForExits() // FIXME(dlc) - We have an issue here if we have // outstanding flush points (pongs) and they were not // sent out, but are still in the pipe. // Hol...
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// Try to reconnect using the option parameters. // This function assumes we are allowed to reconnect.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1722-L1863
train
nats-io/go-nats
nats.go
processOpErr
func (nc *Conn) processOpErr(err error) { nc.mu.Lock() if nc.isConnecting() || nc.isClosed() || nc.isReconnecting() { nc.mu.Unlock() return } if nc.Opts.AllowReconnect && nc.status == CONNECTED { // Set our new status nc.status = RECONNECTING // Stop ping timer if set nc.stopPingTimer() if nc.conn !=...
go
func (nc *Conn) processOpErr(err error) { nc.mu.Lock() if nc.isConnecting() || nc.isClosed() || nc.isReconnecting() { nc.mu.Unlock() return } if nc.Opts.AllowReconnect && nc.status == CONNECTED { // Set our new status nc.status = RECONNECTING // Stop ping timer if set nc.stopPingTimer() if nc.conn !=...
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// processOpErr handles errors from reading or parsing the protocol. // The lock should not be held entering this function.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1867-L1898
train
nats-io/go-nats
nats.go
asyncCBDispatcher
func (ac *asyncCallbacksHandler) asyncCBDispatcher() { for { ac.mu.Lock() // Protect for spurious wakeups. We should get out of the // wait only if there is an element to pop from the list. for ac.head == nil { ac.cond.Wait() } cur := ac.head ac.head = cur.next if cur == ac.tail { ac.tail = nil ...
go
func (ac *asyncCallbacksHandler) asyncCBDispatcher() { for { ac.mu.Lock() // Protect for spurious wakeups. We should get out of the // wait only if there is an element to pop from the list. for ac.head == nil { ac.cond.Wait() } cur := ac.head ac.head = cur.next if cur == ac.tail { ac.tail = nil ...
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// dispatch is responsible for calling any async callbacks
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1901-L1924
train
nats-io/go-nats
nats.go
pushOrClose
func (ac *asyncCallbacksHandler) pushOrClose(f func(), close bool) { ac.mu.Lock() defer ac.mu.Unlock() // Make sure that library is not calling push with nil function, // since this is used to notify the dispatcher that it should stop. if !close && f == nil { panic("pushing a nil callback") } cb := &asyncCB{f:...
go
func (ac *asyncCallbacksHandler) pushOrClose(f func(), close bool) { ac.mu.Lock() defer ac.mu.Unlock() // Make sure that library is not calling push with nil function, // since this is used to notify the dispatcher that it should stop. if !close && f == nil { panic("pushing a nil callback") } cb := &asyncCB{f:...
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// Add the given function to the tail of the list and // signals the dispatcher.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L1939-L1959
train
nats-io/go-nats
nats.go
waitForMsgs
func (nc *Conn) waitForMsgs(s *Subscription) { var closed bool var delivered, max uint64 // Used to account for adjustments to sub.pBytes when we wrap back around. msgLen := -1 for { s.mu.Lock() // Do accounting for last msg delivered here so we only lock once // and drain state trips after callback has re...
go
func (nc *Conn) waitForMsgs(s *Subscription) { var closed bool var delivered, max uint64 // Used to account for adjustments to sub.pBytes when we wrap back around. msgLen := -1 for { s.mu.Lock() // Do accounting for last msg delivered here so we only lock once // and drain state trips after callback has re...
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// waitForMsgs waits on the conditional shared with readLoop and processMsg. // It is used to deliver messages to asynchronous subscribers.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2010-L2084
train
nats-io/go-nats
nats.go
processPermissionsViolation
func (nc *Conn) processPermissionsViolation(err string) { nc.mu.Lock() // create error here so we can pass it as a closure to the async cb dispatcher. e := errors.New("nats: " + err) nc.err = e if nc.Opts.AsyncErrorCB != nil { nc.ach.push(func() { nc.Opts.AsyncErrorCB(nc, nil, e) }) } nc.mu.Unlock() }
go
func (nc *Conn) processPermissionsViolation(err string) { nc.mu.Lock() // create error here so we can pass it as a closure to the async cb dispatcher. e := errors.New("nats: " + err) nc.err = e if nc.Opts.AsyncErrorCB != nil { nc.ach.push(func() { nc.Opts.AsyncErrorCB(nc, nil, e) }) } nc.mu.Unlock() }
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// processPermissionsViolation is called when the server signals a subject // permissions violation on either publish or subscribe.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2193-L2202
train
nats-io/go-nats
nats.go
processAuthorizationViolation
func (nc *Conn) processAuthorizationViolation(err string) { nc.mu.Lock() nc.err = ErrAuthorization if nc.Opts.AsyncErrorCB != nil { nc.ach.push(func() { nc.Opts.AsyncErrorCB(nc, nil, ErrAuthorization) }) } nc.mu.Unlock() }
go
func (nc *Conn) processAuthorizationViolation(err string) { nc.mu.Lock() nc.err = ErrAuthorization if nc.Opts.AsyncErrorCB != nil { nc.ach.push(func() { nc.Opts.AsyncErrorCB(nc, nil, ErrAuthorization) }) } nc.mu.Unlock() }
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// processAuthorizationViolation is called when the server signals a user // authorization violation.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2206-L2213
train
nats-io/go-nats
nats.go
flusher
func (nc *Conn) flusher() { // Release the wait group defer nc.wg.Done() // snapshot the bw and conn since they can change from underneath of us. nc.mu.Lock() bw := nc.bw conn := nc.conn fch := nc.fch nc.mu.Unlock() if conn == nil || bw == nil { return } for { if _, ok := <-fch; !ok { return } ...
go
func (nc *Conn) flusher() { // Release the wait group defer nc.wg.Done() // snapshot the bw and conn since they can change from underneath of us. nc.mu.Lock() bw := nc.bw conn := nc.conn fch := nc.fch nc.mu.Unlock() if conn == nil || bw == nil { return } for { if _, ok := <-fch; !ok { return } ...
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// flusher is a separate Go routine that will process flush requests for the write // bufio. This allows coalescing of writes to the underlying socket.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2217-L2252
train
nats-io/go-nats
nats.go
processPong
func (nc *Conn) processPong() { var ch chan struct{} nc.mu.Lock() if len(nc.pongs) > 0 { ch = nc.pongs[0] nc.pongs = nc.pongs[1:] } nc.pout = 0 nc.mu.Unlock() if ch != nil { ch <- struct{}{} } }
go
func (nc *Conn) processPong() { var ch chan struct{} nc.mu.Lock() if len(nc.pongs) > 0 { ch = nc.pongs[0] nc.pongs = nc.pongs[1:] } nc.pout = 0 nc.mu.Unlock() if ch != nil { ch <- struct{}{} } }
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// processPong is used to process responses to the client's ping // messages. We use pings for the flush mechanism as well.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2262-L2275
train
nats-io/go-nats
nats.go
processInfo
func (nc *Conn) processInfo(info string) error { if info == _EMPTY_ { return nil } ncInfo := serverInfo{} if err := json.Unmarshal([]byte(info), &ncInfo); err != nil { return err } // Copy content into connection's info structure. nc.info = ncInfo // The array could be empty/not present on initial connect,...
go
func (nc *Conn) processInfo(info string) error { if info == _EMPTY_ { return nil } ncInfo := serverInfo{} if err := json.Unmarshal([]byte(info), &ncInfo); err != nil { return err } // Copy content into connection's info structure. nc.info = ncInfo // The array could be empty/not present on initial connect,...
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// processInfo is used to parse the info messages sent // from the server. // This function may update the server pool.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2285-L2357
train
nats-io/go-nats
nats.go
processAsyncInfo
func (nc *Conn) processAsyncInfo(info []byte) { nc.mu.Lock() // Ignore errors, we will simply not update the server pool... nc.processInfo(string(info)) nc.mu.Unlock() }
go
func (nc *Conn) processAsyncInfo(info []byte) { nc.mu.Lock() // Ignore errors, we will simply not update the server pool... nc.processInfo(string(info)) nc.mu.Unlock() }
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// processAsyncInfo does the same than processInfo, but is called // from the parser. Calls processInfo under connection's lock // protection.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2362-L2367
train
nats-io/go-nats
nats.go
LastError
func (nc *Conn) LastError() error { if nc == nil { return ErrInvalidConnection } nc.mu.RLock() err := nc.err nc.mu.RUnlock() return err }
go
func (nc *Conn) LastError() error { if nc == nil { return ErrInvalidConnection } nc.mu.RLock() err := nc.err nc.mu.RUnlock() return err }
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// LastError reports the last error encountered via the connection. // It can be used reliably within ClosedCB in order to find out reason // why connection was closed for example.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2372-L2380
train
nats-io/go-nats
nats.go
processErr
func (nc *Conn) processErr(ie string) { // Trim, remove quotes ne := normalizeErr(ie) // convert to lower case. e := strings.ToLower(ne) // FIXME(dlc) - process Slow Consumer signals special. if e == STALE_CONNECTION { nc.processOpErr(ErrStaleConnection) } else if strings.HasPrefix(e, PERMISSIONS_ERR) { nc....
go
func (nc *Conn) processErr(ie string) { // Trim, remove quotes ne := normalizeErr(ie) // convert to lower case. e := strings.ToLower(ne) // FIXME(dlc) - process Slow Consumer signals special. if e == STALE_CONNECTION { nc.processOpErr(ErrStaleConnection) } else if strings.HasPrefix(e, PERMISSIONS_ERR) { nc....
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// processErr processes any error messages from the server and // sets the connection's lastError.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2384-L2403
train
nats-io/go-nats
nats.go
Publish
func (nc *Conn) Publish(subj string, data []byte) error { return nc.publish(subj, _EMPTY_, data) }
go
func (nc *Conn) Publish(subj string, data []byte) error { return nc.publish(subj, _EMPTY_, data) }
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// Publish publishes the data argument to the given subject. The data // argument is left untouched and needs to be correctly interpreted on // the receiver.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2419-L2421
train
nats-io/go-nats
nats.go
PublishMsg
func (nc *Conn) PublishMsg(m *Msg) error { if m == nil { return ErrInvalidMsg } return nc.publish(m.Subject, m.Reply, m.Data) }
go
func (nc *Conn) PublishMsg(m *Msg) error { if m == nil { return ErrInvalidMsg } return nc.publish(m.Subject, m.Reply, m.Data) }
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// PublishMsg publishes the Msg structure, which includes the // Subject, an optional Reply and an optional Data field.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2425-L2430
train
nats-io/go-nats
nats.go
publish
func (nc *Conn) publish(subj, reply string, data []byte) error { if nc == nil { return ErrInvalidConnection } if subj == "" { return ErrBadSubject } nc.mu.Lock() if nc.isClosed() { nc.mu.Unlock() return ErrConnectionClosed } if nc.isDrainingPubs() { nc.mu.Unlock() return ErrConnectionDraining } ...
go
func (nc *Conn) publish(subj, reply string, data []byte) error { if nc == nil { return ErrInvalidConnection } if subj == "" { return ErrBadSubject } nc.mu.Lock() if nc.isClosed() { nc.mu.Unlock() return ErrConnectionClosed } if nc.isDrainingPubs() { nc.mu.Unlock() return ErrConnectionDraining } ...
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// publish is the internal function to publish messages to a nats-server. // Sends a protocol data message by queuing into the bufio writer // and kicking the flush go routine. These writes should be protected.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2445-L2531
train
nats-io/go-nats
nats.go
respHandler
func (nc *Conn) respHandler(m *Msg) { rt := respToken(m.Subject) nc.mu.Lock() // Just return if closed. if nc.isClosed() { nc.mu.Unlock() return } // Grab mch mch := nc.respMap[rt] // Delete the key regardless, one response only. // FIXME(dlc) - should we track responses past 1 // just statistics wise? ...
go
func (nc *Conn) respHandler(m *Msg) { rt := respToken(m.Subject) nc.mu.Lock() // Just return if closed. if nc.isClosed() { nc.mu.Unlock() return } // Grab mch mch := nc.respMap[rt] // Delete the key regardless, one response only. // FIXME(dlc) - should we track responses past 1 // just statistics wise? ...
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// respHandler is the global response handler. It will look up // the appropriate channel based on the last token and place // the message on the channel if possible.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2536-L2562
train
nats-io/go-nats
nats.go
createRespMux
func (nc *Conn) createRespMux(respSub string) error { s, err := nc.Subscribe(respSub, nc.respHandler) if err != nil { return err } nc.mu.Lock() nc.respMux = s nc.mu.Unlock() return nil }
go
func (nc *Conn) createRespMux(respSub string) error { s, err := nc.Subscribe(respSub, nc.respHandler) if err != nil { return err } nc.mu.Lock() nc.respMux = s nc.mu.Unlock() return nil }
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// Create the response subscription we will use for all // new style responses. This will be on an _INBOX with an // additional terminal token. The subscription will be on // a wildcard. Caller is responsible for ensuring this is // only called once.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2569-L2578
train
nats-io/go-nats
nats.go
Request
func (nc *Conn) Request(subj string, data []byte, timeout time.Duration) (*Msg, error) { if nc == nil { return nil, ErrInvalidConnection } nc.mu.Lock() // If user wants the old style. if nc.Opts.UseOldRequestStyle { nc.mu.Unlock() return nc.oldRequest(subj, data, timeout) } // Do setup for the new style....
go
func (nc *Conn) Request(subj string, data []byte, timeout time.Duration) (*Msg, error) { if nc == nil { return nil, ErrInvalidConnection } nc.mu.Lock() // If user wants the old style. if nc.Opts.UseOldRequestStyle { nc.mu.Unlock() return nc.oldRequest(subj, data, timeout) } // Do setup for the new style....
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// Request will send a request payload and deliver the response message, // or an error, including a timeout if no message was received properly.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2582-L2639
train
nats-io/go-nats
nats.go
NewInbox
func NewInbox() string { var b [inboxPrefixLen + nuidSize]byte pres := b[:inboxPrefixLen] copy(pres, InboxPrefix) ns := b[inboxPrefixLen:] copy(ns, nuid.Next()) return string(b[:]) }
go
func NewInbox() string { var b [inboxPrefixLen + nuidSize]byte pres := b[:inboxPrefixLen] copy(pres, InboxPrefix) ns := b[inboxPrefixLen:] copy(ns, nuid.Next()) return string(b[:]) }
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// NewInbox will return an inbox string which can be used for directed replies from // subscribers. These are guaranteed to be unique, but can be shared and subscribed // to by others.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2675-L2682
train
nats-io/go-nats
nats.go
initNewResp
func (nc *Conn) initNewResp() { // _INBOX wildcard nc.respSub = fmt.Sprintf("%s.*", NewInbox()) nc.respMap = make(map[string]chan *Msg) nc.respRand = rand.New(rand.NewSource(time.Now().UnixNano())) }
go
func (nc *Conn) initNewResp() { // _INBOX wildcard nc.respSub = fmt.Sprintf("%s.*", NewInbox()) nc.respMap = make(map[string]chan *Msg) nc.respRand = rand.New(rand.NewSource(time.Now().UnixNano())) }
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// Function to init new response structures.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2685-L2690
train
nats-io/go-nats
nats.go
newRespInbox
func (nc *Conn) newRespInbox() string { if nc.respMap == nil { nc.initNewResp() } var b [respInboxPrefixLen + replySuffixLen]byte pres := b[:respInboxPrefixLen] copy(pres, nc.respSub) rn := nc.respRand.Int63() for i, l := respInboxPrefixLen, rn; i < len(b); i++ { b[i] = rdigits[l%base] l /= base } return...
go
func (nc *Conn) newRespInbox() string { if nc.respMap == nil { nc.initNewResp() } var b [respInboxPrefixLen + replySuffixLen]byte pres := b[:respInboxPrefixLen] copy(pres, nc.respSub) rn := nc.respRand.Int63() for i, l := respInboxPrefixLen, rn; i < len(b); i++ { b[i] = rdigits[l%base] l /= base } return...
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// newRespInbox creates a new literal response subject // that will trigger the mux subscription handler. // Lock should be held.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2695-L2708
train
nats-io/go-nats
nats.go
NewRespInbox
func (nc *Conn) NewRespInbox() string { nc.mu.Lock() s := nc.newRespInbox() nc.mu.Unlock() return s }
go
func (nc *Conn) NewRespInbox() string { nc.mu.Lock() s := nc.newRespInbox() nc.mu.Unlock() return s }
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// NewRespInbox is the new format used for _INBOX.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2711-L2716
train
nats-io/go-nats
nats.go
QueueSubscribe
func (nc *Conn) QueueSubscribe(subj, queue string, cb MsgHandler) (*Subscription, error) { return nc.subscribe(subj, queue, cb, nil, false) }
go
func (nc *Conn) QueueSubscribe(subj, queue string, cb MsgHandler) (*Subscription, error) { return nc.subscribe(subj, queue, cb, nil, false) }
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// QueueSubscribe creates an asynchronous queue subscriber on the given subject. // All subscribers with the same queue name will form the queue group and // only one member of the group will be selected to receive any given // message asynchronously.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2763-L2765
train
nats-io/go-nats
nats.go
subscribe
func (nc *Conn) subscribe(subj, queue string, cb MsgHandler, ch chan *Msg, isSync bool) (*Subscription, error) { if nc == nil { return nil, ErrInvalidConnection } nc.mu.Lock() // ok here, but defer is generally expensive defer nc.mu.Unlock() // Check for some error conditions. if nc.isClosed() { return nil,...
go
func (nc *Conn) subscribe(subj, queue string, cb MsgHandler, ch chan *Msg, isSync bool) (*Subscription, error) { if nc == nil { return nil, ErrInvalidConnection } nc.mu.Lock() // ok here, but defer is generally expensive defer nc.mu.Unlock() // Check for some error conditions. if nc.isClosed() { return nil,...
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// subscribe is the internal subscribe function that indicates interest in a subject.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2788-L2844
train
nats-io/go-nats
nats.go
NumSubscriptions
func (nc *Conn) NumSubscriptions() int { nc.mu.RLock() defer nc.mu.RUnlock() return len(nc.subs) }
go
func (nc *Conn) NumSubscriptions() int { nc.mu.RLock() defer nc.mu.RUnlock() return len(nc.subs) }
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// NumSubscriptions returns active number of subscriptions.
[ "NumSubscriptions", "returns", "active", "number", "of", "subscriptions", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2847-L2851
train
nats-io/go-nats
nats.go
removeSub
func (nc *Conn) removeSub(s *Subscription) { nc.subsMu.Lock() delete(nc.subs, s.sid) nc.subsMu.Unlock() s.mu.Lock() defer s.mu.Unlock() // Release callers on NextMsg for SyncSubscription only if s.mch != nil && s.typ == SyncSubscription { close(s.mch) } s.mch = nil // Mark as invalid s.conn = nil s.close...
go
func (nc *Conn) removeSub(s *Subscription) { nc.subsMu.Lock() delete(nc.subs, s.sid) nc.subsMu.Unlock() s.mu.Lock() defer s.mu.Unlock() // Release callers on NextMsg for SyncSubscription only if s.mch != nil && s.typ == SyncSubscription { close(s.mch) } s.mch = nil // Mark as invalid s.conn = nil s.close...
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// Lock for nc should be held here upon entry
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2854-L2872
train
nats-io/go-nats
nats.go
Type
func (s *Subscription) Type() SubscriptionType { if s == nil { return NilSubscription } s.mu.Lock() defer s.mu.Unlock() return s.typ }
go
func (s *Subscription) Type() SubscriptionType { if s == nil { return NilSubscription } s.mu.Lock() defer s.mu.Unlock() return s.typ }
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// Type returns the type of Subscription.
[ "Type", "returns", "the", "type", "of", "Subscription", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2886-L2893
train
nats-io/go-nats
nats.go
Drain
func (s *Subscription) Drain() error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } return conn.unsubscribe(s, 0, true) }
go
func (s *Subscription) Drain() error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } return conn.unsubscribe(s, 0, true) }
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// Drain will remove interest but continue callbacks until all messages // have been processed.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2909-L2920
train
nats-io/go-nats
nats.go
Unsubscribe
func (s *Subscription) Unsubscribe() error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } if conn.IsDraining() { return ErrConnectionDraining } return conn.unsubscribe(s, 0, false) }
go
func (s *Subscription) Unsubscribe() error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } if conn.IsDraining() { return ErrConnectionDraining } return conn.unsubscribe(s, 0, false) }
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// Unsubscribe will remove interest in the given subject.
[ "Unsubscribe", "will", "remove", "interest", "in", "the", "given", "subject", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2923-L2937
train
nats-io/go-nats
nats.go
checkDrained
func (nc *Conn) checkDrained(sub *Subscription) { if nc == nil || sub == nil { return } // This allows us to know that whatever we have in the client pending // is correct and the server will not send additional information. nc.Flush() // Once we are here we just wait for Pending to reach 0 or // any other s...
go
func (nc *Conn) checkDrained(sub *Subscription) { if nc == nil || sub == nil { return } // This allows us to know that whatever we have in the client pending // is correct and the server will not send additional information. nc.Flush() // Once we are here we just wait for Pending to reach 0 or // any other s...
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// checkDrained will watch for a subscription to be fully drained // and then remove it.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2941-L2974
train
nats-io/go-nats
nats.go
AutoUnsubscribe
func (s *Subscription) AutoUnsubscribe(max int) error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } return conn.unsubscribe(s, max, false) }
go
func (s *Subscription) AutoUnsubscribe(max int) error { if s == nil { return ErrBadSubscription } s.mu.Lock() conn := s.conn s.mu.Unlock() if conn == nil { return ErrBadSubscription } return conn.unsubscribe(s, max, false) }
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// AutoUnsubscribe will issue an automatic Unsubscribe that is // processed by the server when max messages have been received. // This can be useful when sending a request to an unknown number // of subscribers.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L2980-L2991
train
nats-io/go-nats
nats.go
NextMsg
func (s *Subscription) NextMsg(timeout time.Duration) (*Msg, error) { if s == nil { return nil, ErrBadSubscription } s.mu.Lock() err := s.validateNextMsgState() if err != nil { s.mu.Unlock() return nil, err } // snapshot mch := s.mch s.mu.Unlock() var ok bool var msg *Msg // If something is availa...
go
func (s *Subscription) NextMsg(timeout time.Duration) (*Msg, error) { if s == nil { return nil, ErrBadSubscription } s.mu.Lock() err := s.validateNextMsgState() if err != nil { s.mu.Unlock() return nil, err } // snapshot mch := s.mch s.mu.Unlock() var ok bool var msg *Msg // If something is availa...
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// NextMsg will return the next message available to a synchronous subscriber // or block until one is available. A timeout can be used to return when no // message has been delivered.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3036-L3088
train
nats-io/go-nats
nats.go
validateNextMsgState
func (s *Subscription) validateNextMsgState() error { if s.connClosed { return ErrConnectionClosed } if s.mch == nil { if s.max > 0 && s.delivered >= s.max { return ErrMaxMessages } else if s.closed { return ErrBadSubscription } } if s.mcb != nil { return ErrSyncSubRequired } if s.sc { s.sc = f...
go
func (s *Subscription) validateNextMsgState() error { if s.connClosed { return ErrConnectionClosed } if s.mch == nil { if s.max > 0 && s.delivered >= s.max { return ErrMaxMessages } else if s.closed { return ErrBadSubscription } } if s.mcb != nil { return ErrSyncSubRequired } if s.sc { s.sc = f...
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// validateNextMsgState checks whether the subscription is in a valid // state to call NextMsg and be delivered another message synchronously. // This should be called while holding the lock.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3093-L3113
train
nats-io/go-nats
nats.go
processNextMsgDelivered
func (s *Subscription) processNextMsgDelivered(msg *Msg) error { s.mu.Lock() nc := s.conn max := s.max // Update some stats. s.delivered++ delivered := s.delivered if s.typ == SyncSubscription { s.pMsgs-- s.pBytes -= len(msg.Data) } s.mu.Unlock() if max > 0 { if delivered > max { return ErrMaxMessa...
go
func (s *Subscription) processNextMsgDelivered(msg *Msg) error { s.mu.Lock() nc := s.conn max := s.max // Update some stats. s.delivered++ delivered := s.delivered if s.typ == SyncSubscription { s.pMsgs-- s.pBytes -= len(msg.Data) } s.mu.Unlock() if max > 0 { if delivered > max { return ErrMaxMessa...
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// processNextMsgDelivered takes a message and applies the needed // accounting to the stats from the subscription, returning an // error in case we have the maximum number of messages have been // delivered already. It should not be called while holding the lock.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3119-L3146
train
nats-io/go-nats
nats.go
Pending
func (s *Subscription) Pending() (int, int, error) { if s == nil { return -1, -1, ErrBadSubscription } s.mu.Lock() defer s.mu.Unlock() if s.conn == nil { return -1, -1, ErrBadSubscription } if s.typ == ChanSubscription { return -1, -1, ErrTypeSubscription } return s.pMsgs, s.pBytes, nil }
go
func (s *Subscription) Pending() (int, int, error) { if s == nil { return -1, -1, ErrBadSubscription } s.mu.Lock() defer s.mu.Unlock() if s.conn == nil { return -1, -1, ErrBadSubscription } if s.typ == ChanSubscription { return -1, -1, ErrTypeSubscription } return s.pMsgs, s.pBytes, nil }
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// Pending returns the number of queued messages and queued bytes in the client for this subscription.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3156-L3169
train
nats-io/go-nats
nats.go
PendingLimits
func (s *Subscription) PendingLimits() (int, int, error) { if s == nil { return -1, -1, ErrBadSubscription } s.mu.Lock() defer s.mu.Unlock() if s.conn == nil { return -1, -1, ErrBadSubscription } if s.typ == ChanSubscription { return -1, -1, ErrTypeSubscription } return s.pMsgsLimit, s.pBytesLimit, nil }
go
func (s *Subscription) PendingLimits() (int, int, error) { if s == nil { return -1, -1, ErrBadSubscription } s.mu.Lock() defer s.mu.Unlock() if s.conn == nil { return -1, -1, ErrBadSubscription } if s.typ == ChanSubscription { return -1, -1, ErrTypeSubscription } return s.pMsgsLimit, s.pBytesLimit, nil }
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// PendingLimits returns the current limits for this subscription. // If no error is returned, a negative value indicates that the // given metric is not limited.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3213-L3226
train
nats-io/go-nats
nats.go
sendPing
func (nc *Conn) sendPing(ch chan struct{}) { nc.pongs = append(nc.pongs, ch) nc.bw.WriteString(pingProto) // Flush in place. nc.bw.Flush() }
go
func (nc *Conn) sendPing(ch chan struct{}) { nc.pongs = append(nc.pongs, ch) nc.bw.WriteString(pingProto) // Flush in place. nc.bw.Flush() }
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// The lock must be held entering this function.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3298-L3303
train
nats-io/go-nats
nats.go
processPingTimer
func (nc *Conn) processPingTimer() { nc.mu.Lock() if nc.status != CONNECTED { nc.mu.Unlock() return } // Check for violation nc.pout++ if nc.pout > nc.Opts.MaxPingsOut { nc.mu.Unlock() nc.processOpErr(ErrStaleConnection) return } nc.sendPing(nil) nc.ptmr.Reset(nc.Opts.PingInterval) nc.mu.Unlock()...
go
func (nc *Conn) processPingTimer() { nc.mu.Lock() if nc.status != CONNECTED { nc.mu.Unlock() return } // Check for violation nc.pout++ if nc.pout > nc.Opts.MaxPingsOut { nc.mu.Unlock() nc.processOpErr(ErrStaleConnection) return } nc.sendPing(nil) nc.ptmr.Reset(nc.Opts.PingInterval) nc.mu.Unlock()...
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// This will fire periodically and send a client origin // ping to the server. Will also check that we have received // responses from the server.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3308-L3327
train
nats-io/go-nats
nats.go
resendSubscriptions
func (nc *Conn) resendSubscriptions() { // Since we are going to send protocols to the server, we don't want to // be holding the subsMu lock (which is used in processMsg). So copy // the subscriptions in a temporary array. nc.subsMu.RLock() subs := make([]*Subscription, 0, len(nc.subs)) for _, s := range nc.subs...
go
func (nc *Conn) resendSubscriptions() { // Since we are going to send protocols to the server, we don't want to // be holding the subsMu lock (which is used in processMsg). So copy // the subscriptions in a temporary array. nc.subsMu.RLock() subs := make([]*Subscription, 0, len(nc.subs)) for _, s := range nc.subs...
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// resendSubscriptions will send our subscription state back to the // server. Used in reconnects
[ "resendSubscriptions", "will", "send", "our", "subscription", "state", "back", "to", "the", "server", ".", "Used", "in", "reconnects" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3389-L3422
train
nats-io/go-nats
nats.go
clearPendingFlushCalls
func (nc *Conn) clearPendingFlushCalls() { // Clear any queued pongs, e.g. pending flush calls. for _, ch := range nc.pongs { if ch != nil { close(ch) } } nc.pongs = nil }
go
func (nc *Conn) clearPendingFlushCalls() { // Clear any queued pongs, e.g. pending flush calls. for _, ch := range nc.pongs { if ch != nil { close(ch) } } nc.pongs = nil }
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// This will clear any pending flush calls and release pending calls. // Lock is assumed to be held by the caller.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3426-L3434
train
nats-io/go-nats
nats.go
clearPendingRequestCalls
func (nc *Conn) clearPendingRequestCalls() { if nc.respMap == nil { return } for key, ch := range nc.respMap { if ch != nil { close(ch) delete(nc.respMap, key) } } }
go
func (nc *Conn) clearPendingRequestCalls() { if nc.respMap == nil { return } for key, ch := range nc.respMap { if ch != nil { close(ch) delete(nc.respMap, key) } } }
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// This will clear any pending Request calls. // Lock is assumed to be held by the caller.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3438-L3448
train
nats-io/go-nats
nats.go
close
func (nc *Conn) close(status Status, doCBs bool) { nc.mu.Lock() if nc.isClosed() { nc.status = status nc.mu.Unlock() return } nc.status = CLOSED // Kick the Go routines so they fall out. nc.kickFlusher() nc.mu.Unlock() nc.mu.Lock() // Clear any queued pongs, e.g. pending flush calls. nc.clearPendingF...
go
func (nc *Conn) close(status Status, doCBs bool) { nc.mu.Lock() if nc.isClosed() { nc.status = status nc.mu.Unlock() return } nc.status = CLOSED // Kick the Go routines so they fall out. nc.kickFlusher() nc.mu.Unlock() nc.mu.Lock() // Clear any queued pongs, e.g. pending flush calls. nc.clearPendingF...
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// Low level close call that will do correct cleanup and set // desired status. Also controls whether user defined callbacks // will be triggered. The lock should not be held entering this // function. This function will handle the locking manually.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3454-L3523
train
nats-io/go-nats
nats.go
IsClosed
func (nc *Conn) IsClosed() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isClosed() }
go
func (nc *Conn) IsClosed() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isClosed() }
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// IsClosed tests if a Conn has been closed.
[ "IsClosed", "tests", "if", "a", "Conn", "has", "been", "closed", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3534-L3538
train
nats-io/go-nats
nats.go
IsReconnecting
func (nc *Conn) IsReconnecting() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isReconnecting() }
go
func (nc *Conn) IsReconnecting() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isReconnecting() }
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// IsReconnecting tests if a Conn is reconnecting.
[ "IsReconnecting", "tests", "if", "a", "Conn", "is", "reconnecting", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3541-L3545
train
nats-io/go-nats
nats.go
IsConnected
func (nc *Conn) IsConnected() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isConnected() }
go
func (nc *Conn) IsConnected() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isConnected() }
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// IsConnected tests if a Conn is connected.
[ "IsConnected", "tests", "if", "a", "Conn", "is", "connected", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3548-L3552
train
nats-io/go-nats
nats.go
drainConnection
func (nc *Conn) drainConnection() { // Snapshot subs list. nc.mu.Lock() subs := make([]*Subscription, 0, len(nc.subs)) for _, s := range nc.subs { subs = append(subs, s) } errCB := nc.Opts.AsyncErrorCB drainWait := nc.Opts.DrainTimeout nc.mu.Unlock() // for pushing errors with context. pushErr := func(err ...
go
func (nc *Conn) drainConnection() { // Snapshot subs list. nc.mu.Lock() subs := make([]*Subscription, 0, len(nc.subs)) for _, s := range nc.subs { subs = append(subs, s) } errCB := nc.Opts.AsyncErrorCB drainWait := nc.Opts.DrainTimeout nc.mu.Unlock() // for pushing errors with context. pushErr := func(err ...
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// drainConnection will run in a separate Go routine and will // flush all publishes and drain all active subscriptions.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3556-L3614
train
nats-io/go-nats
nats.go
IsDraining
func (nc *Conn) IsDraining() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isDraining() }
go
func (nc *Conn) IsDraining() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.isDraining() }
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// IsDraining tests if a Conn is in the draining state.
[ "IsDraining", "tests", "if", "a", "Conn", "is", "in", "the", "draining", "state", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3641-L3645
train
nats-io/go-nats
nats.go
getServers
func (nc *Conn) getServers(implicitOnly bool) []string { poolSize := len(nc.srvPool) var servers = make([]string, 0) for i := 0; i < poolSize; i++ { if implicitOnly && !nc.srvPool[i].isImplicit { continue } url := nc.srvPool[i].url servers = append(servers, fmt.Sprintf("%s://%s", url.Scheme, url.Host)) }...
go
func (nc *Conn) getServers(implicitOnly bool) []string { poolSize := len(nc.srvPool) var servers = make([]string, 0) for i := 0; i < poolSize; i++ { if implicitOnly && !nc.srvPool[i].isImplicit { continue } url := nc.srvPool[i].url servers = append(servers, fmt.Sprintf("%s://%s", url.Scheme, url.Host)) }...
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// caller must lock
[ "caller", "must", "lock" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3648-L3659
train
nats-io/go-nats
nats.go
Servers
func (nc *Conn) Servers() []string { nc.mu.RLock() defer nc.mu.RUnlock() return nc.getServers(false) }
go
func (nc *Conn) Servers() []string { nc.mu.RLock() defer nc.mu.RUnlock() return nc.getServers(false) }
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// Servers returns the list of known server urls, including additional // servers discovered after a connection has been established. If // authentication is enabled, use UserInfo or Token when connecting with // these urls.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3665-L3669
train
nats-io/go-nats
nats.go
DiscoveredServers
func (nc *Conn) DiscoveredServers() []string { nc.mu.RLock() defer nc.mu.RUnlock() return nc.getServers(true) }
go
func (nc *Conn) DiscoveredServers() []string { nc.mu.RLock() defer nc.mu.RUnlock() return nc.getServers(true) }
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// DiscoveredServers returns only the server urls that have been discovered // after a connection has been established. If authentication is enabled, // use UserInfo or Token when connecting with these urls.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3674-L3678
train
nats-io/go-nats
nats.go
Status
func (nc *Conn) Status() Status { nc.mu.RLock() defer nc.mu.RUnlock() return nc.status }
go
func (nc *Conn) Status() Status { nc.mu.RLock() defer nc.mu.RUnlock() return nc.status }
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// Status returns the current state of the connection.
[ "Status", "returns", "the", "current", "state", "of", "the", "connection", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3681-L3685
train
nats-io/go-nats
nats.go
isDraining
func (nc *Conn) isDraining() bool { return nc.status == DRAINING_SUBS || nc.status == DRAINING_PUBS }
go
func (nc *Conn) isDraining() bool { return nc.status == DRAINING_SUBS || nc.status == DRAINING_PUBS }
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// Test if Conn is in the draining state.
[ "Test", "if", "Conn", "is", "in", "the", "draining", "state", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3708-L3710
train
nats-io/go-nats
nats.go
Stats
func (nc *Conn) Stats() Statistics { // Stats are updated either under connection's mu or subsMu mutexes. // Lock both to safely get them. nc.mu.Lock() nc.subsMu.RLock() stats := Statistics{ InMsgs: nc.InMsgs, InBytes: nc.InBytes, OutMsgs: nc.OutMsgs, OutBytes: nc.OutBytes, Reconnects: nc.Rec...
go
func (nc *Conn) Stats() Statistics { // Stats are updated either under connection's mu or subsMu mutexes. // Lock both to safely get them. nc.mu.Lock() nc.subsMu.RLock() stats := Statistics{ InMsgs: nc.InMsgs, InBytes: nc.InBytes, OutMsgs: nc.OutMsgs, OutBytes: nc.OutBytes, Reconnects: nc.Rec...
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// Stats will return a race safe copy of the Statistics section for the connection.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3718-L3733
train
nats-io/go-nats
nats.go
MaxPayload
func (nc *Conn) MaxPayload() int64 { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.MaxPayload }
go
func (nc *Conn) MaxPayload() int64 { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.MaxPayload }
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// MaxPayload returns the size limit that a message payload can have. // This is set by the server configuration and delivered to the client // upon connect.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3738-L3742
train
nats-io/go-nats
nats.go
AuthRequired
func (nc *Conn) AuthRequired() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.AuthRequired }
go
func (nc *Conn) AuthRequired() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.AuthRequired }
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// AuthRequired will return if the connected server requires authorization.
[ "AuthRequired", "will", "return", "if", "the", "connected", "server", "requires", "authorization", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3745-L3749
train
nats-io/go-nats
nats.go
TLSRequired
func (nc *Conn) TLSRequired() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.TLSRequired }
go
func (nc *Conn) TLSRequired() bool { nc.mu.RLock() defer nc.mu.RUnlock() return nc.info.TLSRequired }
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// TLSRequired will return if the connected server requires TLS connections.
[ "TLSRequired", "will", "return", "if", "the", "connected", "server", "requires", "TLS", "connections", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3752-L3756
train
nats-io/go-nats
nats.go
GetClientID
func (nc *Conn) GetClientID() (uint64, error) { nc.mu.RLock() defer nc.mu.RUnlock() if nc.isClosed() { return 0, ErrConnectionClosed } if nc.info.CID == 0 { return 0, ErrClientIDNotSupported } return nc.info.CID, nil }
go
func (nc *Conn) GetClientID() (uint64, error) { nc.mu.RLock() defer nc.mu.RUnlock() if nc.isClosed() { return 0, ErrConnectionClosed } if nc.info.CID == 0 { return 0, ErrClientIDNotSupported } return nc.info.CID, nil }
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// GetClientID returns the client ID assigned by the server to which // the client is currently connected to. Note that the value may change if // the client reconnects. // This function returns ErrNoClientIDReturned if the server is of a // version prior to 1.2.0.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3811-L3821
train
nats-io/go-nats
nats.go
NkeyOptionFromSeed
func NkeyOptionFromSeed(seedFile string) (Option, error) { kp, err := nkeyPairFromSeedFile(seedFile) if err != nil { return nil, err } // Wipe our key on exit. defer kp.Wipe() pub, err := kp.PublicKey() if err != nil { return nil, err } if !nkeys.IsValidPublicUserKey(pub) { return nil, fmt.Errorf("nats:...
go
func NkeyOptionFromSeed(seedFile string) (Option, error) { kp, err := nkeyPairFromSeedFile(seedFile) if err != nil { return nil, err } // Wipe our key on exit. defer kp.Wipe() pub, err := kp.PublicKey() if err != nil { return nil, err } if !nkeys.IsValidPublicUserKey(pub) { return nil, fmt.Errorf("nats:...
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// NkeyOptionFromSeed will load an nkey pair from a seed file. // It will return the NKey Option and will handle // signing of nonce challenges from the server. It will take // care to not hold keys in memory and to wipe memory.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3827-L3846
train
nats-io/go-nats
nats.go
sigHandler
func sigHandler(nonce []byte, seedFile string) ([]byte, error) { kp, err := nkeyPairFromSeedFile(seedFile) if err != nil { return nil, err } // Wipe our key on exit. defer kp.Wipe() sig, _ := kp.Sign(nonce) return sig, nil }
go
func sigHandler(nonce []byte, seedFile string) ([]byte, error) { kp, err := nkeyPairFromSeedFile(seedFile) if err != nil { return nil, err } // Wipe our key on exit. defer kp.Wipe() sig, _ := kp.Sign(nonce) return sig, nil }
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// Sign authentication challenges from the server. // Do not keep private seed in memory.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/nats.go#L3916-L3926
train
nats-io/go-nats
util/tls.go
CloneTLSConfig
func CloneTLSConfig(c *tls.Config) *tls.Config { if c == nil { return &tls.Config{} } return c.Clone() }
go
func CloneTLSConfig(c *tls.Config) *tls.Config { if c == nil { return &tls.Config{} } return c.Clone() }
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// CloneTLSConfig returns a copy of c.
[ "CloneTLSConfig", "returns", "a", "copy", "of", "c", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/util/tls.go#L21-L27
train
nats-io/go-nats
context.go
RequestWithContext
func (nc *Conn) RequestWithContext(ctx context.Context, subj string, data []byte) (*Msg, error) { if ctx == nil { return nil, ErrInvalidContext } if nc == nil { return nil, ErrInvalidConnection } // Check whether the context is done already before making // the request. if ctx.Err() != nil { return nil, ct...
go
func (nc *Conn) RequestWithContext(ctx context.Context, subj string, data []byte) (*Msg, error) { if ctx == nil { return nil, ErrInvalidContext } if nc == nil { return nil, ErrInvalidConnection } // Check whether the context is done already before making // the request. if ctx.Err() != nil { return nil, ct...
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// RequestWithContext takes a context, a subject and payload // in bytes and request expecting a single response.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/context.go#L26-L89
train
nats-io/go-nats
context.go
oldRequestWithContext
func (nc *Conn) oldRequestWithContext(ctx context.Context, subj string, data []byte) (*Msg, error) { inbox := NewInbox() ch := make(chan *Msg, RequestChanLen) s, err := nc.subscribe(inbox, _EMPTY_, nil, ch, true) if err != nil { return nil, err } s.AutoUnsubscribe(1) defer s.Unsubscribe() err = nc.PublishRe...
go
func (nc *Conn) oldRequestWithContext(ctx context.Context, subj string, data []byte) (*Msg, error) { inbox := NewInbox() ch := make(chan *Msg, RequestChanLen) s, err := nc.subscribe(inbox, _EMPTY_, nil, ch, true) if err != nil { return nil, err } s.AutoUnsubscribe(1) defer s.Unsubscribe() err = nc.PublishRe...
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// oldRequestWithContext utilizes inbox and subscription per request.
[ "oldRequestWithContext", "utilizes", "inbox", "and", "subscription", "per", "request", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/context.go#L92-L109
train
nats-io/go-nats
context.go
NextMsgWithContext
func (s *Subscription) NextMsgWithContext(ctx context.Context) (*Msg, error) { if ctx == nil { return nil, ErrInvalidContext } if s == nil { return nil, ErrBadSubscription } if ctx.Err() != nil { return nil, ctx.Err() } s.mu.Lock() err := s.validateNextMsgState() if err != nil { s.mu.Unlock() return...
go
func (s *Subscription) NextMsgWithContext(ctx context.Context) (*Msg, error) { if ctx == nil { return nil, ErrInvalidContext } if s == nil { return nil, ErrBadSubscription } if ctx.Err() != nil { return nil, ctx.Err() } s.mu.Lock() err := s.validateNextMsgState() if err != nil { s.mu.Unlock() return...
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// NextMsgWithContext takes a context and returns the next message // available to a synchronous subscriber, blocking until it is delivered // or context gets canceled.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/context.go#L114-L166
train
nats-io/go-nats
context.go
RequestWithContext
func (c *EncodedConn) RequestWithContext(ctx context.Context, subject string, v interface{}, vPtr interface{}) error { if ctx == nil { return ErrInvalidContext } b, err := c.Enc.Encode(subject, v) if err != nil { return err } m, err := c.Conn.RequestWithContext(ctx, subject, b) if err != nil { return err ...
go
func (c *EncodedConn) RequestWithContext(ctx context.Context, subject string, v interface{}, vPtr interface{}) error { if ctx == nil { return ErrInvalidContext } b, err := c.Enc.Encode(subject, v) if err != nil { return err } m, err := c.Conn.RequestWithContext(ctx, subject, b) if err != nil { return err ...
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// RequestWithContext will create an Inbox and perform a Request // using the provided cancellation context with the Inbox reply // for the data v. A response will be decoded into the vPtrResponse.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/context.go#L217-L241
train
nats-io/go-nats
netchan.go
BindSendChan
func (c *EncodedConn) BindSendChan(subject string, channel interface{}) error { chVal := reflect.ValueOf(channel) if chVal.Kind() != reflect.Chan { return ErrChanArg } go chPublish(c, chVal, subject) return nil }
go
func (c *EncodedConn) BindSendChan(subject string, channel interface{}) error { chVal := reflect.ValueOf(channel) if chVal.Kind() != reflect.Chan { return ErrChanArg } go chPublish(c, chVal, subject) return nil }
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// This allows the functionality for network channels by binding send and receive Go chans // to subjects and optionally queue groups. // Data will be encoded and decoded via the EncodedConn and its associated encoders. // BindSendChan binds a channel for send operations to NATS.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/netchan.go#L26-L33
train
nats-io/go-nats
netchan.go
chPublish
func chPublish(c *EncodedConn, chVal reflect.Value, subject string) { for { val, ok := chVal.Recv() if !ok { // Channel has most likely been closed. return } if e := c.Publish(subject, val.Interface()); e != nil { // Do this under lock. c.Conn.mu.Lock() defer c.Conn.mu.Unlock() if c.Conn.Opt...
go
func chPublish(c *EncodedConn, chVal reflect.Value, subject string) { for { val, ok := chVal.Recv() if !ok { // Channel has most likely been closed. return } if e := c.Publish(subject, val.Interface()); e != nil { // Do this under lock. c.Conn.mu.Lock() defer c.Conn.mu.Unlock() if c.Conn.Opt...
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// Publish all values that arrive on the channel until it is closed or we // encounter an error.
[ "Publish", "all", "values", "that", "arrive", "on", "the", "channel", "until", "it", "is", "closed", "or", "we", "encounter", "an", "error", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/netchan.go#L37-L61
train
nats-io/go-nats
netchan.go
BindRecvChan
func (c *EncodedConn) BindRecvChan(subject string, channel interface{}) (*Subscription, error) { return c.bindRecvChan(subject, _EMPTY_, channel) }
go
func (c *EncodedConn) BindRecvChan(subject string, channel interface{}) (*Subscription, error) { return c.bindRecvChan(subject, _EMPTY_, channel) }
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// BindRecvChan binds a channel for receive operations from NATS.
[ "BindRecvChan", "binds", "a", "channel", "for", "receive", "operations", "from", "NATS", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/netchan.go#L64-L66
train
nats-io/go-nats
netchan.go
BindRecvQueueChan
func (c *EncodedConn) BindRecvQueueChan(subject, queue string, channel interface{}) (*Subscription, error) { return c.bindRecvChan(subject, queue, channel) }
go
func (c *EncodedConn) BindRecvQueueChan(subject, queue string, channel interface{}) (*Subscription, error) { return c.bindRecvChan(subject, queue, channel) }
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// BindRecvQueueChan binds a channel for queue-based receive operations from NATS.
[ "BindRecvQueueChan", "binds", "a", "channel", "for", "queue", "-", "based", "receive", "operations", "from", "NATS", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/netchan.go#L69-L71
train
nats-io/go-nats
netchan.go
bindRecvChan
func (c *EncodedConn) bindRecvChan(subject, queue string, channel interface{}) (*Subscription, error) { chVal := reflect.ValueOf(channel) if chVal.Kind() != reflect.Chan { return nil, ErrChanArg } argType := chVal.Type().Elem() cb := func(m *Msg) { var oPtr reflect.Value if argType.Kind() != reflect.Ptr { ...
go
func (c *EncodedConn) bindRecvChan(subject, queue string, channel interface{}) (*Subscription, error) { chVal := reflect.ValueOf(channel) if chVal.Kind() != reflect.Chan { return nil, ErrChanArg } argType := chVal.Type().Elem() cb := func(m *Msg) { var oPtr reflect.Value if argType.Kind() != reflect.Ptr { ...
[ "func", "(", "c", "*", "EncodedConn", ")", "bindRecvChan", "(", "subject", ",", "queue", "string", ",", "channel", "interface", "{", "}", ")", "(", "*", "Subscription", ",", "error", ")", "{", "chVal", ":=", "reflect", ".", "ValueOf", "(", "channel", "...
// Internal function to bind receive operations for a channel.
[ "Internal", "function", "to", "bind", "receive", "operations", "for", "a", "channel", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/netchan.go#L74-L111
train
nats-io/go-nats
examples/nats-echo/main.go
lookupGeo
func lookupGeo() string { c := &http.Client{Timeout: 2 * time.Second} resp, err := c.Get("https://ipinfo.io") if err != nil || resp == nil { log.Fatalf("Could not retrive geo location data: %v", err) } defer resp.Body.Close() body, _ := ioutil.ReadAll(resp.Body) g := geo{} if err := json.Unmarshal(body, &g); ...
go
func lookupGeo() string { c := &http.Client{Timeout: 2 * time.Second} resp, err := c.Get("https://ipinfo.io") if err != nil || resp == nil { log.Fatalf("Could not retrive geo location data: %v", err) } defer resp.Body.Close() body, _ := ioutil.ReadAll(resp.Body) g := geo{} if err := json.Unmarshal(body, &g); ...
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// lookup our current region and country..
[ "lookup", "our", "current", "region", "and", "country", ".." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/examples/nats-echo/main.go#L153-L166
train
nats-io/go-nats
bench/bench.go
CSV
func (bm *Benchmark) CSV() string { var buffer bytes.Buffer writer := csv.NewWriter(&buffer) headers := []string{"#RunID", "ClientID", "MsgCount", "MsgBytes", "MsgsPerSec", "BytesPerSec", "DurationSecs"} if err := writer.Write(headers); err != nil { log.Fatalf("Error while serializing headers %q: %v", headers, er...
go
func (bm *Benchmark) CSV() string { var buffer bytes.Buffer writer := csv.NewWriter(&buffer) headers := []string{"#RunID", "ClientID", "MsgCount", "MsgBytes", "MsgsPerSec", "BytesPerSec", "DurationSecs"} if err := writer.Write(headers); err != nil { log.Fatalf("Error while serializing headers %q: %v", headers, er...
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// CSV generates a csv report of all the samples collected
[ "CSV", "generates", "a", "csv", "report", "of", "all", "the", "samples", "collected" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L120-L143
train
nats-io/go-nats
bench/bench.go
NewSample
func NewSample(jobCount int, msgSize int, start, end time.Time, nc *nats.Conn) *Sample { s := Sample{JobMsgCnt: jobCount, Start: start, End: end} s.MsgBytes = uint64(msgSize * jobCount) s.MsgCnt = nc.OutMsgs + nc.InMsgs s.IOBytes = nc.OutBytes + nc.InBytes return &s }
go
func NewSample(jobCount int, msgSize int, start, end time.Time, nc *nats.Conn) *Sample { s := Sample{JobMsgCnt: jobCount, Start: start, End: end} s.MsgBytes = uint64(msgSize * jobCount) s.MsgCnt = nc.OutMsgs + nc.InMsgs s.IOBytes = nc.OutBytes + nc.InBytes return &s }
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// NewSample creates a new Sample initialized to the provided values. The nats.Conn information captured
[ "NewSample", "creates", "a", "new", "Sample", "initialized", "to", "the", "provided", "values", ".", "The", "nats", ".", "Conn", "information", "captured" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L146-L152
train
nats-io/go-nats
bench/bench.go
Throughput
func (s *Sample) Throughput() float64 { return float64(s.MsgBytes) / s.Duration().Seconds() }
go
func (s *Sample) Throughput() float64 { return float64(s.MsgBytes) / s.Duration().Seconds() }
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// Throughput of bytes per second
[ "Throughput", "of", "bytes", "per", "second" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L155-L157
train
nats-io/go-nats
bench/bench.go
Rate
func (s *Sample) Rate() int64 { return int64(float64(s.JobMsgCnt) / s.Duration().Seconds()) }
go
func (s *Sample) Rate() int64 { return int64(float64(s.JobMsgCnt) / s.Duration().Seconds()) }
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// Rate of meessages in the job per second
[ "Rate", "of", "meessages", "in", "the", "job", "per", "second" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L160-L162
train
nats-io/go-nats
bench/bench.go
Duration
func (s *Sample) Duration() time.Duration { return s.End.Sub(s.Start) }
go
func (s *Sample) Duration() time.Duration { return s.End.Sub(s.Start) }
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// Duration that the sample was active
[ "Duration", "that", "the", "sample", "was", "active" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L171-L173
train
nats-io/go-nats
bench/bench.go
MinRate
func (sg *SampleGroup) MinRate() int64 { m := int64(0) for i, s := range sg.Samples { if i == 0 { m = s.Rate() } m = min(m, s.Rate()) } return m }
go
func (sg *SampleGroup) MinRate() int64 { m := int64(0) for i, s := range sg.Samples { if i == 0 { m = s.Rate() } m = min(m, s.Rate()) } return m }
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// MinRate returns the smallest message rate in the SampleGroup
[ "MinRate", "returns", "the", "smallest", "message", "rate", "in", "the", "SampleGroup" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L193-L202
train
nats-io/go-nats
bench/bench.go
MaxRate
func (sg *SampleGroup) MaxRate() int64 { m := int64(0) for i, s := range sg.Samples { if i == 0 { m = s.Rate() } m = max(m, s.Rate()) } return m }
go
func (sg *SampleGroup) MaxRate() int64 { m := int64(0) for i, s := range sg.Samples { if i == 0 { m = s.Rate() } m = max(m, s.Rate()) } return m }
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// MaxRate returns the largest message rate in the SampleGroup
[ "MaxRate", "returns", "the", "largest", "message", "rate", "in", "the", "SampleGroup" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L205-L214
train
nats-io/go-nats
bench/bench.go
AvgRate
func (sg *SampleGroup) AvgRate() int64 { sum := uint64(0) for _, s := range sg.Samples { sum += uint64(s.Rate()) } return int64(sum / uint64(len(sg.Samples))) }
go
func (sg *SampleGroup) AvgRate() int64 { sum := uint64(0) for _, s := range sg.Samples { sum += uint64(s.Rate()) } return int64(sum / uint64(len(sg.Samples))) }
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// AvgRate returns the average of all the message rates in the SampleGroup
[ "AvgRate", "returns", "the", "average", "of", "all", "the", "message", "rates", "in", "the", "SampleGroup" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L217-L223
train
nats-io/go-nats
bench/bench.go
StdDev
func (sg *SampleGroup) StdDev() float64 { avg := float64(sg.AvgRate()) sum := float64(0) for _, c := range sg.Samples { sum += math.Pow(float64(c.Rate())-avg, 2) } variance := sum / float64(len(sg.Samples)) return math.Sqrt(variance) }
go
func (sg *SampleGroup) StdDev() float64 { avg := float64(sg.AvgRate()) sum := float64(0) for _, c := range sg.Samples { sum += math.Pow(float64(c.Rate())-avg, 2) } variance := sum / float64(len(sg.Samples)) return math.Sqrt(variance) }
[ "func", "(", "sg", "*", "SampleGroup", ")", "StdDev", "(", ")", "float64", "{", "avg", ":=", "float64", "(", "sg", ".", "AvgRate", "(", ")", ")", "\n", "sum", ":=", "float64", "(", "0", ")", "\n", "for", "_", ",", "c", ":=", "range", "sg", ".",...
// StdDev returns the standard deviation the message rates in the SampleGroup
[ "StdDev", "returns", "the", "standard", "deviation", "the", "message", "rates", "in", "the", "SampleGroup" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L226-L234
train
nats-io/go-nats
bench/bench.go
AddSample
func (sg *SampleGroup) AddSample(e *Sample) { sg.Samples = append(sg.Samples, e) if len(sg.Samples) == 1 { sg.Start = e.Start sg.End = e.End } sg.IOBytes += e.IOBytes sg.JobMsgCnt += e.JobMsgCnt sg.MsgCnt += e.MsgCnt sg.MsgBytes += e.MsgBytes if e.Start.Before(sg.Start) { sg.Start = e.Start } if e.En...
go
func (sg *SampleGroup) AddSample(e *Sample) { sg.Samples = append(sg.Samples, e) if len(sg.Samples) == 1 { sg.Start = e.Start sg.End = e.End } sg.IOBytes += e.IOBytes sg.JobMsgCnt += e.JobMsgCnt sg.MsgCnt += e.MsgCnt sg.MsgBytes += e.MsgBytes if e.Start.Before(sg.Start) { sg.Start = e.Start } if e.En...
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// AddSample adds a Sample to the SampleGroup. After adding a Sample it shouldn't be modified.
[ "AddSample", "adds", "a", "Sample", "to", "the", "SampleGroup", ".", "After", "adding", "a", "Sample", "it", "shouldn", "t", "be", "modified", "." ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L237-L256
train
nats-io/go-nats
bench/bench.go
Report
func (bm *Benchmark) Report() string { var buffer bytes.Buffer indent := "" if !bm.Pubs.HasSamples() && !bm.Subs.HasSamples() { return "No publisher or subscribers. Nothing to report." } if bm.Pubs.HasSamples() && bm.Subs.HasSamples() { buffer.WriteString(fmt.Sprintf("%s Pub/Sub stats: %s\n", bm.Name, bm)) ...
go
func (bm *Benchmark) Report() string { var buffer bytes.Buffer indent := "" if !bm.Pubs.HasSamples() && !bm.Subs.HasSamples() { return "No publisher or subscribers. Nothing to report." } if bm.Pubs.HasSamples() && bm.Subs.HasSamples() { buffer.WriteString(fmt.Sprintf("%s Pub/Sub stats: %s\n", bm.Name, bm)) ...
[ "func", "(", "bm", "*", "Benchmark", ")", "Report", "(", ")", "string", "{", "var", "buffer", "bytes", ".", "Buffer", "\n\n", "indent", ":=", "\"", "\"", "\n", "if", "!", "bm", ".", "Pubs", ".", "HasSamples", "(", ")", "&&", "!", "bm", ".", "Subs...
// Report returns a human readable report of the samples taken in the Benchmark
[ "Report", "returns", "a", "human", "readable", "report", "of", "the", "samples", "taken", "in", "the", "Benchmark" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L264-L296
train
nats-io/go-nats
bench/bench.go
HumanBytes
func HumanBytes(bytes float64, si bool) string { var base = 1024 pre := []string{"K", "M", "G", "T", "P", "E"} var post = "B" if si { base = 1000 pre = []string{"k", "M", "G", "T", "P", "E"} post = "iB" } if bytes < float64(base) { return fmt.Sprintf("%.2f B", bytes) } exp := int(math.Log(bytes) / math....
go
func HumanBytes(bytes float64, si bool) string { var base = 1024 pre := []string{"K", "M", "G", "T", "P", "E"} var post = "B" if si { base = 1000 pre = []string{"k", "M", "G", "T", "P", "E"} post = "iB" } if bytes < float64(base) { return fmt.Sprintf("%.2f B", bytes) } exp := int(math.Log(bytes) / math....
[ "func", "HumanBytes", "(", "bytes", "float64", ",", "si", "bool", ")", "string", "{", "var", "base", "=", "1024", "\n", "pre", ":=", "[", "]", "string", "{", "\"", "\"", ",", "\"", "\"", ",", "\"", "\"", ",", "\"", "\"", ",", "\"", "\"", ",", ...
// HumanBytes formats bytes as a human readable string
[ "HumanBytes", "formats", "bytes", "as", "a", "human", "readable", "string" ]
36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L317-L333
train
nats-io/go-nats
bench/bench.go
MsgsPerClient
func MsgsPerClient(numMsgs, numClients int) []int { var counts []int if numClients == 0 || numMsgs == 0 { return counts } counts = make([]int, numClients) mc := numMsgs / numClients for i := 0; i < numClients; i++ { counts[i] = mc } extra := numMsgs % numClients for i := 0; i < extra; i++ { counts[i]++ ...
go
func MsgsPerClient(numMsgs, numClients int) []int { var counts []int if numClients == 0 || numMsgs == 0 { return counts } counts = make([]int, numClients) mc := numMsgs / numClients for i := 0; i < numClients; i++ { counts[i] = mc } extra := numMsgs % numClients for i := 0; i < extra; i++ { counts[i]++ ...
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// MsgsPerClient divides the number of messages by the number of clients and tries to distribute them as evenly as possible
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/bench/bench.go#L350-L365
train
nats-io/go-nats
timer.go
Get
func (tp *timerPool) Get(d time.Duration) *time.Timer { if t, _ := tp.p.Get().(*time.Timer); t != nil { t.Reset(d) return t } return time.NewTimer(d) }
go
func (tp *timerPool) Get(d time.Duration) *time.Timer { if t, _ := tp.p.Get().(*time.Timer); t != nil { t.Reset(d) return t } return time.NewTimer(d) }
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// Get returns a timer that completes after the given duration.
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36d30b0ba7aa260ae25b4f3d312b2a700106fd78
https://github.com/nats-io/go-nats/blob/36d30b0ba7aa260ae25b4f3d312b2a700106fd78/timer.go#L31-L38
train
securego/gosec
rules/blacklist.go
NewBlacklistedImports
func NewBlacklistedImports(id string, conf gosec.Config, blacklist map[string]string) (gosec.Rule, []ast.Node) { return &blacklistedImport{ MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.High, }, Blacklisted: blacklist, }, []ast.Node{(*ast.ImportSpec)(nil)} }
go
func NewBlacklistedImports(id string, conf gosec.Config, blacklist map[string]string) (gosec.Rule, []ast.Node) { return &blacklistedImport{ MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.High, }, Blacklisted: blacklist, }, []ast.Node{(*ast.ImportSpec)(nil)} }
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// NewBlacklistedImports reports when a blacklisted import is being used. // Typically when a deprecated technology is being used.
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/blacklist.go#L50-L59
train
securego/gosec
rules/blacklist.go
NewBlacklistedImportRC4
func NewBlacklistedImportRC4(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { return NewBlacklistedImports(id, conf, map[string]string{ "crypto/rc4": "Blacklisted import crypto/rc4: weak cryptographic primitive", }) }
go
func NewBlacklistedImportRC4(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { return NewBlacklistedImports(id, conf, map[string]string{ "crypto/rc4": "Blacklisted import crypto/rc4: weak cryptographic primitive", }) }
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// NewBlacklistedImportRC4 fails if DES is imported
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/blacklist.go#L76-L80
train
securego/gosec
rules/hardcoded_credentials.go
NewHardcodedCredentials
func NewHardcodedCredentials(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { pattern := `(?i)passwd|pass|password|pwd|secret|token` entropyThreshold := 80.0 perCharThreshold := 3.0 ignoreEntropy := false var truncateString = 16 if val, ok := conf["G101"]; ok { conf := val.(map[string]string) if confi...
go
func NewHardcodedCredentials(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { pattern := `(?i)passwd|pass|password|pwd|secret|token` entropyThreshold := 80.0 perCharThreshold := 3.0 ignoreEntropy := false var truncateString = 16 if val, ok := conf["G101"]; ok { conf := val.(map[string]string) if confi...
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// NewHardcodedCredentials attempts to find high entropy string constants being // assigned to variables that appear to be related to credentials.
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/hardcoded_credentials.go#L101-L147
train
securego/gosec
rules/bind.go
NewBindsToAllNetworkInterfaces
func NewBindsToAllNetworkInterfaces(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { calls := gosec.NewCallList() calls.Add("net", "Listen") calls.Add("crypto/tls", "Listen") return &bindsToAllNetworkInterfaces{ calls: calls, pattern: regexp.MustCompile(`^(0.0.0.0|:).*$`), MetaData: gosec.MetaData{ ...
go
func NewBindsToAllNetworkInterfaces(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { calls := gosec.NewCallList() calls.Add("net", "Listen") calls.Add("crypto/tls", "Listen") return &bindsToAllNetworkInterfaces{ calls: calls, pattern: regexp.MustCompile(`^(0.0.0.0|:).*$`), MetaData: gosec.MetaData{ ...
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// NewBindsToAllNetworkInterfaces detects socket connections that are setup to // listen on all network interfaces.
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/bind.go#L69-L83
train
securego/gosec
rules/fileperms.go
NewFilePerms
func NewFilePerms(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { mode := getConfiguredMode(conf, "G302", 0600) return &filePermissions{ mode: mode, pkg: "os", calls: []string{"OpenFile", "Chmod"}, MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.High,...
go
func NewFilePerms(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { mode := getConfiguredMode(conf, "G302", 0600) return &filePermissions{ mode: mode, pkg: "os", calls: []string{"OpenFile", "Chmod"}, MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.High,...
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// NewFilePerms creates a rule to detect file creation with a more permissive than configured // permission mask.
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/fileperms.go#L65-L78
train
securego/gosec
rules/rsa.go
NewWeakKeyStrength
func NewWeakKeyStrength(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { calls := gosec.NewCallList() calls.Add("crypto/rsa", "GenerateKey") bits := 2048 return &weakKeyStrength{ calls: calls, bits: bits, MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.H...
go
func NewWeakKeyStrength(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { calls := gosec.NewCallList() calls.Add("crypto/rsa", "GenerateKey") bits := 2048 return &weakKeyStrength{ calls: calls, bits: bits, MetaData: gosec.MetaData{ ID: id, Severity: gosec.Medium, Confidence: gosec.H...
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// NewWeakKeyStrength builds a rule that detects RSA keys < 2048 bits
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/rsa.go#L44-L58
train
securego/gosec
rules/subproc.go
NewSubproc
func NewSubproc(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { rule := &subprocess{gosec.MetaData{ID: id}, gosec.NewCallList()} rule.Add("os/exec", "Command") rule.Add("os/exec", "CommandContext") rule.Add("syscall", "Exec") return rule, []ast.Node{(*ast.CallExpr)(nil)} }
go
func NewSubproc(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { rule := &subprocess{gosec.MetaData{ID: id}, gosec.NewCallList()} rule.Add("os/exec", "Command") rule.Add("os/exec", "CommandContext") rule.Add("syscall", "Exec") return rule, []ast.Node{(*ast.CallExpr)(nil)} }
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// NewSubproc detects cases where we are forking out to an external process
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/subproc.go#L58-L64
train
securego/gosec
rules/archive.go
Match
func (a *archive) Match(n ast.Node, c *gosec.Context) (*gosec.Issue, error) { if node := a.calls.ContainsCallExpr(n, c, false); node != nil { for _, arg := range node.Args { var argType types.Type if selector, ok := arg.(*ast.SelectorExpr); ok { argType = c.Info.TypeOf(selector.X) } else if ident, ok :=...
go
func (a *archive) Match(n ast.Node, c *gosec.Context) (*gosec.Issue, error) { if node := a.calls.ContainsCallExpr(n, c, false); node != nil { for _, arg := range node.Args { var argType types.Type if selector, ok := arg.(*ast.SelectorExpr); ok { argType = c.Info.TypeOf(selector.X) } else if ident, ok :=...
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// Match inspects AST nodes to determine if the filepath.Joins uses any argument derived from type zip.File
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29cec138dcc94f347e6d41550a5223571dc7d6cf
https://github.com/securego/gosec/blob/29cec138dcc94f347e6d41550a5223571dc7d6cf/rules/archive.go#L21-L44
train