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fix(desktop): prevent backend zombie process and IPC listener leaks

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zhayujie
2026-06-22 15:46:49 +08:00
parent 49452e035d
commit c432681b2b
6 changed files with 34 additions and 15 deletions
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18
desktop/src/main/preload.ts
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@@ -7,12 +7,18 @@ contextBridge.exposeInMainWorld('electronAPI', {
selectDirectory: () => ipcRenderer.invoke('select-directory'),
selectFile: (filters?: Electron.FileFilter[]) => ipcRenderer.invoke('select-file', filters),
// Each listener registrar returns an unsubscribe fn so renderers can clean
// up on unmount / effect re-run and avoid accumulating duplicate handlers.
onBackendStatus: (callback: (data: { status: string; port?: number; error?: string }) => void) => {
ipcRenderer.on('backend-status', (_event, data) => callback(data))
const handler = (_event: unknown, data: { status: string; port?: number; error?: string }) => callback(data)
ipcRenderer.on('backend-status', handler)
return () => ipcRenderer.removeListener('backend-status', handler)
},
onBackendLog: (callback: (line: string) => void) => {
ipcRenderer.on('backend-log', (_event, line) => callback(line))
const handler = (_event: unknown, line: string) => callback(line)
ipcRenderer.on('backend-log', handler)
return () => ipcRenderer.removeListener('backend-log', handler)
},
// Window controls (custom titlebar on Windows)
@@ -21,12 +27,16 @@ contextBridge.exposeInMainWorld('electronAPI', {
windowClose: () => ipcRenderer.invoke('window-close'),
windowIsMaximized: () => ipcRenderer.invoke('window-is-maximized'),
onMaximizeChange: (callback: (maximized: boolean) => void) => {
ipcRenderer.on('window-maximize-changed', (_event, max) => callback(max))
const handler = (_event: unknown, max: boolean) => callback(max)
ipcRenderer.on('window-maximize-changed', handler)
return () => ipcRenderer.removeListener('window-maximize-changed', handler)
},
// App menu / shortcut actions forwarded from the main process.
onMenuAction: (callback: (action: string) => void) => {
ipcRenderer.on('menu-action', (_event, action: string) => callback(action))
const handler = (_event: unknown, action: string) => callback(action)
ipcRenderer.on('menu-action', handler)
return () => ipcRenderer.removeListener('menu-action', handler)
},
platform: process.platform,