diff --git a/core/common/src/commonMain/kotlin/org/meshtastic/core/common/di/ApplicationCoroutineScope.kt b/core/common/src/commonMain/kotlin/org/meshtastic/core/common/di/ApplicationCoroutineScope.kt new file mode 100644 index 000000000..2a27b9690 --- /dev/null +++ b/core/common/src/commonMain/kotlin/org/meshtastic/core/common/di/ApplicationCoroutineScope.kt @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2026 Meshtastic LLC + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package org.meshtastic.core.common.di + +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.SupervisorJob +import org.koin.core.annotation.Single +import org.meshtastic.core.common.util.ioDispatcher + +/** + * A process-wide [CoroutineScope] that outlives individual ViewModels and UI components. + * + * Use this scope for fire-and-forget cleanup work that must continue after a ViewModel's own scope has been cancelled + * (for example, deleting temporary files in `onCleared()`). Backed by a [SupervisorJob] so failures in one child do not + * cancel siblings, and by [ioDispatcher] so work runs off the main thread. + * + * Prefer scoping work to a more specific scope (like `viewModelScope`) whenever possible; this scope is an escape hatch + * and should be used sparingly. + */ +interface ApplicationCoroutineScope : CoroutineScope + +@Single(binds = [ApplicationCoroutineScope::class]) +internal class ApplicationCoroutineScopeImpl : ApplicationCoroutineScope { + override val coroutineContext = SupervisorJob() + ioDispatcher +} diff --git a/core/ui/src/androidMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt b/core/ui/src/androidMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt index 231c84d40..5365ab95e 100644 --- a/core/ui/src/androidMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt +++ b/core/ui/src/androidMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt @@ -37,12 +37,12 @@ import androidx.lifecycle.compose.LifecycleEventEffect import co.touchlab.kermit.Logger import com.eygraber.uri.toAndroidUri import com.eygraber.uri.toKmpUri -import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.withContext import org.jetbrains.compose.resources.StringResource import org.jetbrains.compose.resources.getString import org.meshtastic.core.common.gpsDisabled import org.meshtastic.core.common.util.CommonUri +import org.meshtastic.core.common.util.ioDispatcher import java.net.URLEncoder @Composable @@ -146,7 +146,7 @@ actual fun rememberReadTextFromUri(): suspend (uri: CommonUri, maxChars: Int) -> val context = LocalContext.current return remember(context) { { uri, maxChars -> - withContext(Dispatchers.IO) { + withContext(ioDispatcher) { @Suppress("TooGenericExceptionCaught") try { val androidUri = uri.toAndroidUri() diff --git a/core/ui/src/jvmMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt b/core/ui/src/jvmMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt index 031e1fe35..a938f92ea 100644 --- a/core/ui/src/jvmMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt +++ b/core/ui/src/jvmMain/kotlin/org/meshtastic/core/ui/util/PlatformUtils.kt @@ -20,10 +20,10 @@ package org.meshtastic.core.ui.util import androidx.compose.runtime.Composable import co.touchlab.kermit.Logger -import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.withContext import org.jetbrains.compose.resources.StringResource import org.meshtastic.core.common.util.CommonUri +import org.meshtastic.core.common.util.ioDispatcher import java.awt.Desktop import java.awt.FileDialog import java.awt.Frame @@ -89,7 +89,7 @@ actual fun rememberOpenFileLauncher(onUriReceived: (CommonUri?) -> Unit): (mimeT /** JVM — Reads text from a file URI. */ @Composable actual fun rememberReadTextFromUri(): suspend (uri: CommonUri, maxChars: Int) -> String? = { uri, maxChars -> - withContext(Dispatchers.IO) { + withContext(ioDispatcher) { @Suppress("TooGenericExceptionCaught") try { val file = File(URI(uri.toString())) diff --git a/feature/firmware/src/commonMain/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModel.kt b/feature/firmware/src/commonMain/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModel.kt index dc1c45971..f8ff9fcac 100644 --- a/feature/firmware/src/commonMain/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModel.kt +++ b/feature/firmware/src/commonMain/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModel.kt @@ -35,6 +35,7 @@ import kotlinx.coroutines.launch import kotlinx.coroutines.withTimeoutOrNull import org.jetbrains.compose.resources.StringResource import org.koin.core.annotation.KoinViewModel +import org.meshtastic.core.common.di.ApplicationCoroutineScope import org.meshtastic.core.common.util.CommonUri import org.meshtastic.core.common.util.safeCatching import org.meshtastic.core.database.entity.FirmwareRelease @@ -91,6 +92,7 @@ class FirmwareUpdateViewModel( private val firmwareUpdateManager: FirmwareUpdateManager, private val usbManager: FirmwareUsbManager, private val fileHandler: FirmwareFileHandler, + private val applicationScope: ApplicationCoroutineScope, ) : ViewModel() { private val _state = MutableStateFlow(FirmwareUpdateState.Idle) @@ -124,12 +126,10 @@ class FirmwareUpdateViewModel( override fun onCleared() { super.onCleared() - // viewModelScope is already cancelled when onCleared() runs, so launch cleanup in a - // standalone scope. SupervisorJob prevents the coroutine from propagating failures to a - // shared parent, and NonCancellable on the launch keeps cleanup running even if the scope - // is cancelled concurrently. - @OptIn(kotlinx.coroutines.DelicateCoroutinesApi::class) - kotlinx.coroutines.GlobalScope.launch(NonCancellable) { + // viewModelScope is already cancelled when onCleared() runs, so launch cleanup on the + // application-wide scope (SupervisorJob + ioDispatcher). NonCancellable keeps cleanup + // running even if something tries to cancel it mid-flight. + applicationScope.launch(NonCancellable) { tempFirmwareFile = cleanupTemporaryFiles(fileHandler, tempFirmwareFile) } } diff --git a/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateIntegrationTest.kt b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateIntegrationTest.kt index 4c48a1ced..030d84eff 100644 --- a/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateIntegrationTest.kt +++ b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateIntegrationTest.kt @@ -108,6 +108,7 @@ class FirmwareUpdateIntegrationTest { firmwareUpdateManager, usbManager, fileHandler, + TestApplicationCoroutineScope(testDispatcher), ) @Test diff --git a/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelTest.kt b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelTest.kt index 7032ed408..a8eddff83 100644 --- a/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelTest.kt +++ b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelTest.kt @@ -124,6 +124,7 @@ class FirmwareUpdateViewModelTest { firmwareUpdateManager, usbManager, fileHandler, + TestApplicationCoroutineScope(testDispatcher), ) @Test diff --git a/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/TestApplicationCoroutineScope.kt b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/TestApplicationCoroutineScope.kt new file mode 100644 index 000000000..3ef5c44ef --- /dev/null +++ b/feature/firmware/src/commonTest/kotlin/org/meshtastic/feature/firmware/TestApplicationCoroutineScope.kt @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2026 Meshtastic LLC + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package org.meshtastic.feature.firmware + +import kotlinx.coroutines.CoroutineDispatcher +import kotlinx.coroutines.CoroutineScope +import kotlinx.coroutines.SupervisorJob +import org.meshtastic.core.common.di.ApplicationCoroutineScope + +internal class TestApplicationCoroutineScope(dispatcher: CoroutineDispatcher) : + ApplicationCoroutineScope, + CoroutineScope by CoroutineScope(SupervisorJob() + dispatcher) diff --git a/feature/firmware/src/jvmTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelFileTest.kt b/feature/firmware/src/jvmTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelFileTest.kt index acb1545bd..23a0d03ab 100644 --- a/feature/firmware/src/jvmTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelFileTest.kt +++ b/feature/firmware/src/jvmTest/kotlin/org/meshtastic/feature/firmware/FirmwareUpdateViewModelFileTest.kt @@ -116,6 +116,7 @@ class FirmwareUpdateViewModelFileTest { firmwareUpdateManager, usbManager, fileHandler, + TestApplicationCoroutineScope(testDispatcher), ) // ----------------------------------------------------------------------- diff --git a/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt b/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt index c251b4d5e..315ad1da8 100644 --- a/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt +++ b/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt @@ -27,6 +27,7 @@ import co.touchlab.kermit.Logger import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.launch import kotlinx.coroutines.withContext +import org.meshtastic.core.common.util.ioDispatcher import org.meshtastic.core.resources.Res import org.meshtastic.core.resources.debug_export_failed import org.meshtastic.core.resources.debug_export_success @@ -48,7 +49,7 @@ actual fun rememberLogExporter(logsProvider: suspend () -> List) = - withContext(Dispatchers.IO) { + withContext(ioDispatcher) { try { if (logs.isEmpty()) { withContext(Dispatchers.Main) { context.showToast(Res.string.debug_export_failed, "No logs to export") } diff --git a/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/tak/PrefExporter.kt b/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/tak/PrefExporter.kt index 9afde85e5..a28a57678 100644 --- a/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/tak/PrefExporter.kt +++ b/feature/settings/src/androidMain/kotlin/org/meshtastic/feature/settings/tak/PrefExporter.kt @@ -24,9 +24,9 @@ import androidx.compose.runtime.Composable import androidx.compose.runtime.rememberCoroutineScope import androidx.compose.ui.platform.LocalContext import co.touchlab.kermit.Logger -import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.launch import kotlinx.coroutines.withContext +import org.meshtastic.core.common.util.ioDispatcher @Composable actual fun rememberDataPackageExporter(dataPackageProvider: suspend () -> ByteArray): (fileName: String) -> Unit { @@ -41,7 +41,7 @@ actual fun rememberDataPackageExporter(dataPackageProvider: suspend () -> ByteAr return { fileName -> exportLauncher.launch(fileName) } } -private suspend fun exportZipToUri(context: Context, targetUri: Uri, data: ByteArray) = withContext(Dispatchers.IO) { +private suspend fun exportZipToUri(context: Context, targetUri: Uri, data: ByteArray) = withContext(ioDispatcher) { try { context.contentResolver.openOutputStream(targetUri)?.use { os -> os.write(data) } Logger.i { "TAK data package exported successfully to $targetUri" } diff --git a/feature/settings/src/jvmMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt b/feature/settings/src/jvmMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt index 5b63cc90a..a9a728559 100644 --- a/feature/settings/src/jvmMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt +++ b/feature/settings/src/jvmMain/kotlin/org/meshtastic/feature/settings/debugging/LogExporter.kt @@ -19,9 +19,9 @@ package org.meshtastic.feature.settings.debugging import androidx.compose.runtime.Composable import androidx.compose.runtime.rememberCoroutineScope import co.touchlab.kermit.Logger -import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.launch import kotlinx.coroutines.withContext +import org.meshtastic.core.common.util.ioDispatcher import java.awt.FileDialog import java.awt.Frame import java.io.File @@ -41,7 +41,7 @@ actual fun rememberLogExporter(logsProvider: suspend () -> List ByteAr if (directory != null && file != null) { val targetFile = File(directory, file) val data = dataPackageProvider() - withContext(Dispatchers.IO) { targetFile.writeBytes(data) } + withContext(ioDispatcher) { targetFile.writeBytes(data) } Logger.i { "TAK data package exported successfully to ${targetFile.absolutePath}" } } }