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fix(task-store): prevent EPERM crash in lock release by tracking ownership in memory

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nrslib 2026-02-16 10:02:17 +09:00
parent dd58783f5e
commit 89cb3f8dbf
1 changed files with 17 additions and 18 deletions
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35
src/infra/task/store.ts
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@ -13,10 +13,15 @@ function sleepSync(ms: number): void {
Atomics.wait(arr, 0, 0, ms);
}
function fsErrorCode(err: unknown): string | undefined {
return (err as NodeJS.ErrnoException).code;
}
export class TaskStore {
private readonly tasksFile: string;
private readonly lockFile: string;
private readonly taktDir: string;
private lockOwned = false;
constructor(private readonly projectDir: string) {
this.taktDir = path.join(projectDir, '.takt');
@ -94,10 +99,10 @@ export class TaskStore {
while (true) {
try {
fs.writeFileSync(this.lockFile, String(process.pid), { encoding: 'utf-8', flag: 'wx' });
this.lockOwned = true;
return;
} catch (err) {
const nodeErr = err as NodeJS.ErrnoException;
if (nodeErr.code !== 'EEXIST') {
if (fsErrorCode(err) !== 'EEXIST') {
throw err;
}
}
@ -120,8 +125,8 @@ export class TaskStore {
try {
pidRaw = fs.readFileSync(this.lockFile, 'utf-8').trim();
} catch (err) {
const nodeErr = err as NodeJS.ErrnoException;
if (nodeErr.code === 'ENOENT') {
const code = fsErrorCode(err);
if (code === 'ENOENT' || code === 'EPERM') {
return false;
}
throw err;
@ -139,8 +144,7 @@ export class TaskStore {
try {
fs.unlinkSync(this.lockFile);
} catch (err) {
const nodeErr = err as NodeJS.ErrnoException;
if (nodeErr.code !== 'ENOENT') {
if (fsErrorCode(err) !== 'ENOENT') {
log.debug('Failed to remove stale lock, retrying.', { lockFile: this.lockFile, error: String(err) });
}
}
@ -151,11 +155,11 @@ export class TaskStore {
process.kill(pid, 0);
return true;
} catch (err) {
const nodeErr = err as NodeJS.ErrnoException;
if (nodeErr.code === 'ESRCH') {
const code = fsErrorCode(err);
if (code === 'ESRCH') {
return false;
}
if (nodeErr.code === 'EPERM') {
if (code === 'EPERM') {
return true;
}
throw err;
@ -163,19 +167,14 @@ export class TaskStore {
}
private releaseLock(): void {
if (!this.lockOwned) return;
this.lockOwned = false;
try {
const holder = fs.readFileSync(this.lockFile, 'utf-8').trim();
if (holder !== String(process.pid)) {
return;
}
fs.unlinkSync(this.lockFile);
} catch (err) {
const nodeErr = err as NodeJS.ErrnoException;
if (nodeErr.code === 'ENOENT') {
return;
}
if (fsErrorCode(err) === 'ENOENT') return;
log.debug('Failed to release tasks lock.', { lockFile: this.lockFile, error: String(err) });
throw err;
}
}
}