File size: 6,403 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | use std::collections::HashMap;
use std::sync::Arc;
use codex_code_mode_protocol::CellId;
use codex_code_mode_protocol::CodeModeSessionDelegate;
use codex_code_mode_protocol::host::SessionId;
use codex_code_mode_protocol::host::WireCellId;
use super::cell_ids::public_cell_id;
use super::cleanup::SessionCleanup;
use super::types::RemoteSession;
pub(super) struct CellOwner {
pub(super) session_id: SessionId,
pub(super) cell_id: CellId,
pub(super) delegate: Arc<dyn CodeModeSessionDelegate>,
}
pub(super) struct DelegateTarget {
pub(super) session_id: SessionId,
pub(super) cell_id: CellId,
pub(super) delegate: Arc<dyn CodeModeSessionDelegate>,
}
pub(super) struct FailedSession {
pub(super) cleanup: SessionCleanup,
pub(super) cells: Vec<CellOwner>,
}
pub(super) enum CellAdmissionError {
MissingSession,
DuplicateCell,
}
struct SessionRecord {
remote: RemoteSession,
cleanup: SessionCleanup,
phase: SessionPhase,
cells: HashMap<WireCellId, CellOwner>,
}
#[derive(Clone, Copy, Eq, PartialEq)]
enum SessionPhase {
Ready,
Closing,
}
pub(super) struct SessionRegistry {
records: HashMap<SessionId, SessionRecord>,
}
impl SessionRegistry {
pub(super) fn new() -> Self {
Self {
records: HashMap::new(),
}
}
pub(super) fn contains(&self, session_id: &SessionId) -> bool {
self.records.contains_key(session_id)
}
pub(super) fn contains_cell(&self, session_id: &SessionId, cell_id: &WireCellId) -> bool {
self.records
.get(session_id)
.is_some_and(|session| session.cells.contains_key(cell_id))
}
pub(super) fn insert_ready(&mut self, session: RemoteSession, cleanup: SessionCleanup) {
self.records.insert(
session.id.clone(),
SessionRecord {
remote: session,
cleanup,
phase: SessionPhase::Ready,
cells: HashMap::new(),
},
);
}
pub(super) fn require_ready(&self, session: &RemoteSession) -> Result<(), String> {
let record = self
.records
.get(&session.id)
.ok_or_else(|| format!("unknown code-mode session {}", session.id))?;
if record.remote != *session {
return Err("stale code-mode session generation".to_string());
}
if record.phase != SessionPhase::Ready {
return Err("code-mode session is shutting down".to_string());
}
Ok(())
}
pub(super) fn begin_shutdown(&mut self, session: &RemoteSession) -> Result<(), String> {
let record = self
.records
.get_mut(&session.id)
.ok_or_else(|| format!("unknown code-mode session {}", session.id))?;
if record.remote != *session {
return Err("stale code-mode session generation".to_string());
}
if record.phase == SessionPhase::Closing {
return Err("code-mode session is already closing".to_string());
}
record.phase = SessionPhase::Closing;
Ok(())
}
pub(super) fn begin_abandoned_shutdown(&mut self, session_id: &SessionId) -> Option<bool> {
let record = self.records.get_mut(session_id)?;
if record.phase == SessionPhase::Closing {
return Some(false);
}
record.phase = SessionPhase::Closing;
Some(true)
}
pub(super) fn is_closing(&self, session_id: &SessionId) -> Option<bool> {
self.records
.get(session_id)
.map(|record| record.phase == SessionPhase::Closing)
}
pub(super) fn admit_cell(
&mut self,
session: &RemoteSession,
cell_id: WireCellId,
delegate: Arc<dyn CodeModeSessionDelegate>,
) -> Result<CellId, CellAdmissionError> {
let Some(record) = self.records.get_mut(&session.id) else {
return Err(CellAdmissionError::MissingSession);
};
if record.cells.contains_key(&cell_id) {
return Err(CellAdmissionError::DuplicateCell);
}
let public_id = public_cell_id(session.generation, &cell_id);
record.cells.insert(
cell_id,
CellOwner {
session_id: session.id.clone(),
cell_id: public_id.clone(),
delegate,
},
);
Ok(public_id)
}
pub(super) fn delegate_target(
&self,
session_id: &SessionId,
cell_id: &WireCellId,
) -> Result<DelegateTarget, String> {
let session = self
.records
.get(session_id)
.ok_or_else(|| format!("code-mode host delegated for unknown session {session_id}"))?;
let owner = session.cells.get(cell_id).ok_or_else(|| {
format!(
"code-mode host delegated for unknown cell {} in session {session_id}",
cell_id.as_str()
)
})?;
Ok(DelegateTarget {
session_id: session_id.clone(),
cell_id: owner.cell_id.clone(),
delegate: Arc::clone(&owner.delegate),
})
}
pub(super) fn remove_cell(
&mut self,
session_id: &SessionId,
cell_id: &WireCellId,
) -> Result<CellOwner, String> {
let session = self.records.get_mut(session_id).ok_or_else(|| {
format!(
"code-mode host closed cell {} in unknown session {session_id}",
cell_id.as_str()
)
})?;
session
.cells
.remove(cell_id)
.ok_or_else(|| format!("code-mode host closed unknown cell in session {session_id}"))
}
pub(super) fn remove_session(&mut self, session_id: &SessionId) -> Vec<CellOwner> {
let Some(session) = self.records.remove(session_id) else {
return Vec::new();
};
session.cells.into_values().collect()
}
pub(super) fn drain(&mut self) -> Vec<FailedSession> {
let sessions = std::mem::take(&mut self.records);
sessions
.into_values()
.map(|session| {
let cells = session.cells.into_values().collect();
FailedSession {
cleanup: session.cleanup,
cells,
}
})
.collect()
}
}
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