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fix(desktop): avoid false init failure after long background

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zhayujie
2026-06-24 19:19:24 +08:00
parent 44b61684ed
commit 6211e63f90
3 changed files with 59 additions and 24 deletions
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20
desktop/src/main/python-manager.ts
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@@ -187,19 +187,17 @@ export class PythonBackend extends EventEmitter {
private waitForReady(): Promise<void> {
return new Promise((resolve) => {
const maxAttempts = 120
let attempts = 0
// Wall-clock deadline rather than an attempt counter: if the machine
// sleeps/suspends, the 1s timers stretch out and a counter would give up
// far too early. Time-based bounding tracks real elapsed time instead.
const timeoutMs = 120_000
const startedAt = Date.now()
const check = () => {
attempts++
if (attempts % 10 === 0) {
this.emit('log', `Waiting for backend... (${attempts}s)`)
}
const req = http.get(`http://127.0.0.1:${this.port}/config`, (res) => {
if (res.statusCode === 200) {
this.status = 'ready'
this.emit('log', `Backend ready on port ${this.port} after ${attempts}s`)
this.emit('log', `Backend ready on port ${this.port}`)
this.emit('ready', this.port)
resolve()
} else {
@@ -215,13 +213,13 @@ export class PythonBackend extends EventEmitter {
}
const retry = () => {
if (this.status === 'stopped') {
if (this.status === 'stopped' || this.status === 'ready') {
resolve()
return
}
if (attempts >= maxAttempts) {
if (Date.now() - startedAt >= timeoutMs) {
this.status = 'error'
this.emit('error', `Backend failed to start within ${maxAttempts} seconds`)
this.emit('error', `Backend failed to start within ${Math.round(timeoutMs / 1000)} seconds`)
resolve()
return
}