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compute: reuse shared timeout helpers across worker and local

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This commit is contained in:
Richard R 2026-05-21 16:32:24 -06:00
parent d70c6aa5c6
commit c9dad9c23c
3 changed files with 78 additions and 136 deletions
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68
compute/core/src/runtime/timeout-config.ts
View file

@ -11,6 +11,12 @@ export type ComputeTimeoutConfig = {
};
export type ComputeOperationKind = 'whisper_align' | 'pdf_layout';
export type IdleTimeoutAndHardCapInput<T> = {
run: (touchProgress: () => void) => Promise<T>;
idleTimeoutMs: number;
hardCapMs: number;
label: string;
};
function readPositiveIntEnv(name: string, fallback: number): number {
const raw = process.env[name]?.trim();
@ -37,3 +43,65 @@ export function getWorkerClientWaitTimeoutMs(kind: ComputeOperationKind): number
const timeoutMs = kind === 'pdf_layout' ? config.pdfTimeoutMs : config.whisperTimeoutMs;
return Math.max(DEFAULT_WORKER_WAIT_MIN_MS, timeoutMs + DEFAULT_WORKER_WAIT_BUFFER_MS);
}
export async function withTimeout<T>(promise: Promise<T>, timeoutMs: number, label: string): Promise<T> {
let timer: NodeJS.Timeout | null = null;
try {
return await Promise.race([
promise,
new Promise<T>((_, reject) => {
timer = setTimeout(() => reject(new Error(`${label} timed out after ${timeoutMs}ms`)), timeoutMs);
}),
]);
} finally {
if (timer) clearTimeout(timer);
}
}
export async function withIdleTimeoutAndHardCap<T>(input: IdleTimeoutAndHardCapInput<T>): Promise<T> {
let idleTimer: NodeJS.Timeout | null = null;
let hardCapTimer: NodeJS.Timeout | null = null;
let settled = false;
let rejectTimeout!: (reason: unknown) => void;
const clearTimers = () => {
if (idleTimer) {
clearTimeout(idleTimer);
idleTimer = null;
}
if (hardCapTimer) {
clearTimeout(hardCapTimer);
hardCapTimer = null;
}
};
const failTimeout = (kind: 'idle' | 'hard cap', timeoutMs: number) => {
if (settled) return;
settled = true;
clearTimers();
rejectTimeout(new Error(`${input.label} ${kind} timed out after ${timeoutMs}ms`));
};
const touchProgress = () => {
if (settled) return;
if (idleTimer) clearTimeout(idleTimer);
idleTimer = setTimeout(() => failTimeout('idle', input.idleTimeoutMs), input.idleTimeoutMs);
};
const timeoutPromise = new Promise<never>((_, reject) => {
rejectTimeout = reject;
hardCapTimer = setTimeout(() => failTimeout('hard cap', input.hardCapMs), input.hardCapMs);
touchProgress();
});
try {
const result = await Promise.race([input.run(touchProgress), timeoutPromise]);
settled = true;
clearTimers();
return result as T;
} catch (error) {
settled = true;
clearTimers();
throw error;
}
}

73
compute/worker/src/server.ts
View file

@ -27,7 +27,11 @@ import {
runPdfLayoutFromPdfBuffer,
runWhisperAlignmentFromAudioBuffer,
} from '@openreader/compute-core/local-runtime';
import { getComputeTimeoutConfig } from '@openreader/compute-core/runtime/timeout-config';
import {
getComputeTimeoutConfig,
withIdleTimeoutAndHardCap,
withTimeout,
} from '@openreader/compute-core/runtime/timeout-config';
import {
type PdfLayoutJobRequest,
type PdfLayoutJobResult,
@ -215,73 +219,6 @@ function toArrayBuffer(bytes: Uint8Array): ArrayBuffer {
return copy.buffer;
}
async function withTimeout<T>(promise: Promise<T>, timeoutMs: number, label: string): Promise<T> {
let timer: NodeJS.Timeout | null = null;
try {
return await Promise.race([
promise,
new Promise<T>((_, reject) => {
timer = setTimeout(() => reject(new Error(`${label} timed out after ${timeoutMs}ms`)), timeoutMs);
}),
]);
} finally {
if (timer) clearTimeout(timer);
}
}
async function withIdleTimeoutAndHardCap<T>(input: {
run: (touchProgress: () => void) => Promise<T>;
idleTimeoutMs: number;
hardCapMs: number;
label: string;
}): Promise<T> {
let idleTimer: NodeJS.Timeout | null = null;
let hardCapTimer: NodeJS.Timeout | null = null;
let settled = false;
let rejectTimeout!: (reason: unknown) => void;
const clearTimers = () => {
if (idleTimer) {
clearTimeout(idleTimer);
idleTimer = null;
}
if (hardCapTimer) {
clearTimeout(hardCapTimer);
hardCapTimer = null;
}
};
const failTimeout = (kind: 'idle' | 'hard cap', timeoutMs: number) => {
if (settled) return;
settled = true;
clearTimers();
rejectTimeout(new Error(`${input.label} ${kind} timed out after ${timeoutMs}ms`));
};
const touchProgress = () => {
if (settled) return;
if (idleTimer) clearTimeout(idleTimer);
idleTimer = setTimeout(() => failTimeout('idle', input.idleTimeoutMs), input.idleTimeoutMs);
};
const timeoutPromise = new Promise<never>((_, reject) => {
rejectTimeout = reject;
hardCapTimer = setTimeout(() => failTimeout('hard cap', input.hardCapMs), input.hardCapMs);
touchProgress();
});
try {
const result = await Promise.race([input.run(touchProgress), timeoutPromise]);
settled = true;
clearTimers();
return result as T;
} catch (error) {
settled = true;
clearTimers();
throw error;
}
}
function isAuthed(request: FastifyRequest, expectedToken: string): boolean {
const auth = request.headers.authorization;
if (!auth?.startsWith('Bearer ')) return false;

73
src/lib/server/compute/local.ts
View file

@ -2,80 +2,17 @@ import type { ComputeBackend, PdfLayoutInput, WhisperAlignInput, WhisperAlignRes
import { LOCAL_COMPUTE_LIMITER } from '@/lib/server/compute/concurrency-limiter';
import { getDocumentBlob } from '@/lib/server/documents/blobstore';
import { getTtsSegmentAudioObject } from '@/lib/server/tts/segments-blobstore';
import { getComputeTimeoutConfig } from '@openreader/compute-core/runtime/timeout-config';
import {
getComputeTimeoutConfig,
withIdleTimeoutAndHardCap,
withTimeout,
} from '@openreader/compute-core/runtime/timeout-config';
import {
runPdfLayoutFromPdfBuffer,
runWhisperAlignmentFromAudioBuffer,
} from '@openreader/compute-core/local-runtime';
import type { PdfLayoutProgress } from '@openreader/compute-core/contracts';
async function withTimeout<T>(promise: Promise<T>, timeoutMs: number, label: string): Promise<T> {
let timer: NodeJS.Timeout | null = null;
try {
return await Promise.race([
promise,
new Promise<T>((_, reject) => {
timer = setTimeout(() => reject(new Error(`${label} timed out after ${timeoutMs}ms`)), timeoutMs);
}),
]);
} finally {
if (timer) clearTimeout(timer);
}
}
async function withIdleTimeoutAndHardCap<T>(input: {
run: (touchProgress: () => void) => Promise<T>;
idleTimeoutMs: number;
hardCapMs: number;
label: string;
}): Promise<T> {
let idleTimer: NodeJS.Timeout | null = null;
let hardCapTimer: NodeJS.Timeout | null = null;
let settled = false;
let rejectTimeout!: (reason: unknown) => void;
const clearTimers = () => {
if (idleTimer) {
clearTimeout(idleTimer);
idleTimer = null;
}
if (hardCapTimer) {
clearTimeout(hardCapTimer);
hardCapTimer = null;
}
};
const failTimeout = (kind: 'idle' | 'hard cap', timeoutMs: number) => {
if (settled) return;
settled = true;
clearTimers();
rejectTimeout(new Error(`${input.label} ${kind} timed out after ${timeoutMs}ms`));
};
const touchProgress = () => {
if (settled) return;
if (idleTimer) clearTimeout(idleTimer);
idleTimer = setTimeout(() => failTimeout('idle', input.idleTimeoutMs), input.idleTimeoutMs);
};
const timeoutPromise = new Promise<never>((_, reject) => {
rejectTimeout = reject;
hardCapTimer = setTimeout(() => failTimeout('hard cap', input.hardCapMs), input.hardCapMs);
touchProgress();
});
try {
const result = await Promise.race([input.run(touchProgress), timeoutPromise]);
settled = true;
clearTimers();
return result as T;
} catch (error) {
settled = true;
clearTimers();
throw error;
}
}
export class LocalComputeBackend implements ComputeBackend {
readonly mode = 'local' as const;
private readonly timeoutConfig = getComputeTimeoutConfig();