mirror of
https://github.com/Ark0N/Codeman.git
synced 2026-11-14 10:39:32 +01:00
Aamer Akhter
f23e18b1fc
tmux reads a pane's directory from the process cwd, which is always the resolved path, while workingDir keeps the spelling the case was created with. For a workspace reached through a symlink every reading looked like it was outside the workspace, so the browser sent each relative link through the attachment route instead of the workspace routes. Each session now resolves workingDir once in the background, bounded by probePathKind() and a timed realpath(), and setCwd() writes a reading at or under the resolved path back in workingDir's spelling. Until that settles only a reading lexically inside workingDir is taken. An unknown probe or a failed realpath leaves readings untranslated and retries after WORKSPACE_REALPATH_RETRY_MS. Also corrects two comments: cwd is written to state.json but never read back, and a blank pane path is usually a pane whose program exited.
56 lines
2.8 KiB
TypeScript
56 lines
2.8 KiB
TypeScript
/**
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* @fileoverview Limits for the bounded path probe (`src/utils/bounded-path-probe.ts`).
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*
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* A linked case can live on a network mount, and a hard mount that went away makes
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* `stat()` wait until the mount comes back. The probe gives up on such a path after
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* `PATH_PROBE_TIMEOUT_MS` and answers "unknown", and it stops starting new probes
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* once `MAX_STALLED_PATH_PROBES` timed-out stats are still holding libuv threadpool
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* workers (the pool is shared by every `fs`, `dns.lookup` and `crypto` call in the
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* process, and holds 4 workers unless `UV_THREADPOOL_SIZE` says otherwise).
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*
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* Both are env-overridable, in the same style as the other config modules. A slow
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* but healthy mount (an sshfs that needs a couple of seconds on first touch) may want
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* a longer timeout. The stall limits follow `UV_THREADPOOL_SIZE` on their own, so a
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* server started with a larger pool gets a higher ceiling without further setup.
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*
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* @module config/path-probe
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*/
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function envInt(name: string, fallback: number, min: number, max: number): number {
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const raw = parseInt(process.env[name] || '', 10);
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if (!Number.isFinite(raw) || raw <= 0) return fallback;
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return Math.max(min, Math.min(max, raw));
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}
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/** How long a caller waits for one path probe before the answer is "unknown". */
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export const PATH_PROBE_TIMEOUT_MS = envInt('CODEMAN_PATH_PROBE_TIMEOUT_MS', 1_500, 100, 60_000);
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/**
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* Hard ceiling on timed-out probes left pending, for every caller, `pastCap` ones
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* included: the threadpool size minus one, so a dead mount can never take the last
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* worker. libuv sizes the pool from `UV_THREADPOOL_SIZE` (4 when unset). A pool of
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* one cannot keep a worker free at all, so the ceiling never drops below one.
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*/
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export const PATH_PROBE_STALL_CEILING = Math.max(1, (Number(process.env.UV_THREADPOOL_SIZE) || 4) - 1);
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/**
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* Timed-out probes allowed to stay pending before new BULK probes are refused
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* (answered "unknown" without a stat). This is a backstop, not the main defence: a
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* stalled path on a network or FUSE mount already takes the rest of that mount out
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* of probing (a stall anywhere else takes out only the stalled path), so the cap
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* only engages once that many UNRELATED places have stopped answering. It defaults
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* to one below {@link PATH_PROBE_STALL_CEILING} (2 with the default pool), leaving a
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* slot a `pastCap` probe may still use, and is never allowed above the ceiling.
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*/
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export const MAX_STALLED_PATH_PROBES = Math.min(
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PATH_PROBE_STALL_CEILING,
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envInt('CODEMAN_PATH_PROBE_MAX_STALLED', Math.max(1, PATH_PROBE_STALL_CEILING - 1), 1, 64)
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);
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/**
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* How long a session waits before trying again to resolve its workspace's symlinks
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* after the folder did not answer, so a mount that recovers is picked up (the pane
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* directory reading stays in the resolved spelling meanwhile).
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*/
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export const WORKSPACE_REALPATH_RETRY_MS = 60_000;
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