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fix: do not run multiple engines on cold startup (#22518)

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fix: do not run multiple engines on app startup

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>
Co-authored-by: Alex <alex.tran1502@gmail.com>
This commit is contained in:
shenlong 2025-10-03 20:05:56 +05:30 • committed by GitHub
parent 2e16a88f38
commit 27665801e9
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2 changed files with 43 additions and 32 deletions
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10
mobile/android/app/src/main/kotlin/app/alextran/immich/ImmichApp.kt
View file

@ -1,8 +1,11 @@
package app.alextran.immich
import android.app.Application
import android.os.Handler
import android.os.Looper
import androidx.work.Configuration
import androidx.work.WorkManager
import app.alextran.immich.background.BackgroundEngineLock
import app.alextran.immich.background.BackgroundWorkerApiImpl
class ImmichApp : Application() {
@ -17,6 +20,11 @@ class ImmichApp : Application() {
// As a workaround, we also run a backup check when initializing the application
ContentObserverWorker.startBackupWorker(context = this, delayMilliseconds = 0)
BackgroundWorkerApiImpl.enqueueBackgroundWorker(this)
Handler(Looper.getMainLooper()).postDelayed({
// We can only check the engine count and not the status of the lock here,
// as the previous start might have been killed without unlocking.
if (BackgroundEngineLock.connectEngines > 0) return@postDelayed
BackgroundWorkerApiImpl.enqueueBackgroundWorker(this)
}, 5000)
}
}

65
mobile/android/app/src/main/kotlin/app/alextran/immich/background/BackgroundEngineLock.kt
View file

@ -8,43 +8,46 @@ import java.util.concurrent.atomic.AtomicInteger
private const val TAG = "BackgroundEngineLock"
class BackgroundEngineLock(context: Context) : BackgroundWorkerLockApi, FlutterPlugin {
private val ctx: Context = context.applicationContext
private val ctx: Context = context.applicationContext
companion object {
companion object {
private var engineCount = AtomicInteger(0)
private var engineCount = AtomicInteger(0)
private fun checkAndEnforceBackgroundLock(ctx: Context) {
// work manager task is running while the main app is opened, cancel the worker
if (BackgroundWorkerPreferences(ctx).isLocked() &&
engineCount.get() > 1 &&
BackgroundWorkerApiImpl.isBackgroundWorkerRunning()
) {
Log.i(TAG, "Background worker is locked, cancelling the background worker")
BackgroundWorkerApiImpl.cancelBackgroundWorker(ctx)
}
}
val connectEngines: Int
get() = engineCount.get()
private fun checkAndEnforceBackgroundLock(ctx: Context) {
// work manager task is running while the main app is opened, cancel the worker
if (BackgroundWorkerPreferences(ctx).isLocked() &&
connectEngines > 1 &&
BackgroundWorkerApiImpl.isBackgroundWorkerRunning()
) {
Log.i(TAG, "Background worker is locked, cancelling the background worker")
BackgroundWorkerApiImpl.cancelBackgroundWorker(ctx)
}
}
}
override fun lock() {
BackgroundWorkerPreferences(ctx).setLocked(true)
checkAndEnforceBackgroundLock(ctx)
Log.i(TAG, "Background worker is locked")
}
override fun lock() {
BackgroundWorkerPreferences(ctx).setLocked(true)
checkAndEnforceBackgroundLock(ctx)
Log.i(TAG, "Background worker is locked")
}
override fun unlock() {
BackgroundWorkerPreferences(ctx).setLocked(false)
Log.i(TAG, "Background worker is unlocked")
}
override fun unlock() {
BackgroundWorkerPreferences(ctx).setLocked(false)
Log.i(TAG, "Background worker is unlocked")
}
override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
checkAndEnforceBackgroundLock(binding.applicationContext)
engineCount.incrementAndGet()
Log.i(TAG, "Flutter engine attached. Attached Engines count: $engineCount")
}
override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
checkAndEnforceBackgroundLock(binding.applicationContext)
engineCount.incrementAndGet()
Log.i(TAG, "Flutter engine attached. Attached Engines count: $engineCount")
}
override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
engineCount.decrementAndGet()
Log.i(TAG, "Flutter engine detached. Attached Engines count: $engineCount")
}
override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
engineCount.decrementAndGet()
Log.i(TAG, "Flutter engine detached. Attached Engines count: $engineCount")
}
}