File size: 6,375 Bytes
afa0cbf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | use std::collections::HashMap;
use std::collections::VecDeque;
use codex_code_mode_protocol::host::RequestId;
use codex_code_mode_protocol::host::SessionId;
use codex_code_mode_protocol::host::WireCellId;
use tokio::sync::mpsc;
use super::types::DeferredWait;
use super::types::DriverEvent;
use super::types::InitialResponse;
use super::types::PendingRequest;
use super::types::RemoteSession;
use super::types::UnclaimedExecute;
pub(super) enum CancellationAction {
Send(RequestId),
Terminate {
request_id: RequestId,
execute: UnclaimedExecute,
},
}
pub(super) struct RequestTracker {
pending: HashMap<RequestId, PendingRequest>,
unclaimed_executes: HashMap<RequestId, UnclaimedExecute>,
initial_responses: HashMap<RequestId, InitialResponse>,
deferred_waits: VecDeque<DeferredWait>,
next_request_id: i64,
}
impl RequestTracker {
pub(super) fn new() -> Self {
Self {
pending: HashMap::new(),
unclaimed_executes: HashMap::new(),
initial_responses: HashMap::new(),
deferred_waits: VecDeque::new(),
next_request_id: 1,
}
}
pub(super) fn contains_pending_open(&self, session: &RemoteSession) -> bool {
self.pending.values().any(|pending| {
matches!(
pending,
PendingRequest::OpenSession {
session: pending_session,
..
} if pending_session.id == session.id
)
})
}
pub(super) fn has_pending_execute_for_session(&self, session_id: &SessionId) -> bool {
self.pending.values().any(|request| {
matches!(
request,
PendingRequest::Execute { session, .. } if session.id == *session_id
)
})
}
pub(super) fn allocate_id(&mut self) -> Result<RequestId, String> {
let id = self.next_request_id;
self.next_request_id = self
.next_request_id
.checked_add(1)
.ok_or_else(|| "code-mode host request ID space exhausted".to_string())?;
Ok(RequestId::new(id))
}
pub(super) fn insert_pending(
&mut self,
id: RequestId,
pending: PendingRequest,
event_tx: &mpsc::Sender<DriverEvent>,
) {
self.pending.insert(id, pending);
if let Some(cancellation) = self
.pending
.get_mut(&id)
.and_then(PendingRequest::cancellation_mut)
{
cancellation.spawn_watcher(id, event_tx.clone());
}
}
pub(super) fn remove_pending(&mut self, id: RequestId) -> Option<PendingRequest> {
self.pending.remove(&id)
}
pub(super) fn insert_initial_response(&mut self, id: RequestId, response: InitialResponse) {
self.initial_responses.insert(id, response);
}
pub(super) fn remove_initial_response(&mut self, id: RequestId) -> Option<InitialResponse> {
self.initial_responses.remove(&id)
}
pub(super) fn insert_unclaimed_execute(&mut self, id: RequestId, execute: UnclaimedExecute) {
self.unclaimed_executes.insert(id, execute);
}
pub(super) fn claim_execute(&mut self, id: RequestId) {
self.unclaimed_executes.remove(&id);
}
pub(super) fn collect_cancellations(&mut self) -> Vec<CancellationAction> {
let mut actions = self
.pending
.iter_mut()
.filter_map(|(id, pending)| {
let cancellation = pending.cancellation_mut()?;
(cancellation.is_cancelled() && cancellation.mark_reported())
.then_some(CancellationAction::Send(*id))
})
.collect::<Vec<_>>();
actions.extend(
self.unclaimed_executes
.extract_if(|_, execute| {
execute.cancellation.is_cancelled() && execute.cancellation.mark_reported()
})
.map(|(request_id, execute)| CancellationAction::Terminate {
request_id,
execute,
}),
);
actions
}
pub(super) fn mark_cancelled(&mut self, id: RequestId) -> Option<CancellationAction> {
if let Some(cancellation) = self
.pending
.get_mut(&id)
.and_then(PendingRequest::cancellation_mut)
{
return cancellation
.mark_reported()
.then_some(CancellationAction::Send(id));
}
let execute = self.unclaimed_executes.get_mut(&id)?;
if !execute.cancellation.mark_reported() {
return None;
}
self.unclaimed_executes
.remove(&id)
.map(|execute| CancellationAction::Terminate {
request_id: id,
execute,
})
}
pub(super) fn has_cancelled_wait(&self, session: &RemoteSession, cell_id: &WireCellId) -> bool {
self.pending.values().any(|pending| {
matches!(
pending,
PendingRequest::Wait {
session: pending_session,
cell_id: pending_cell_id,
cancellation,
..
} if pending_session == session
&& pending_cell_id == cell_id
&& cancellation.is_cancelled()
)
})
}
pub(super) fn push_deferred_wait(&mut self, wait: DeferredWait) {
self.deferred_waits.push_back(wait);
}
pub(super) fn take_deferred_waits(&mut self) -> VecDeque<DeferredWait> {
std::mem::take(&mut self.deferred_waits)
}
pub(super) fn remove_unclaimed_for_session(&mut self, session_id: &SessionId) {
self.unclaimed_executes
.retain(|_, execute| &execute.session.id != session_id);
}
pub(super) fn fail_all(&mut self, reason: &str) {
for (_, pending) in self.pending.drain() {
pending.fail(reason.to_string());
}
self.unclaimed_executes.clear();
for (_, initial) in self.initial_responses.drain() {
let _ = initial.response_tx.send(Err(reason.to_string()));
}
for wait in self.deferred_waits.drain(..) {
let _ = wait.response_tx.send(Err(reason.to_string()));
}
}
}
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