Node / meshtastic / Meshtastic-Android / files / feature / discovery / src / commonMain / kotlin / org / meshtastic / feature / discovery / DiscoveryInterruptedSessionRecovery.kt

Displaying Raw • Download

T8b949e/*

* 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 <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.feature.discovery

Tff7b72import T7ee787co.touchlab.kermit.Logger

Tff7b72import T7ee787kotlinx.coroutines.CancellationException

Tff7b72import T7ee787kotlinx.coroutines.Deferred

Tff7b72import T7ee787kotlinx.coroutines.Job

Tff7b72import T7ee787kotlinx.coroutines.coroutineScope

Tff7b72import T7ee787kotlinx.coroutines.currentCoroutineContext

Tff7b72import T7ee787kotlinx.coroutines.ensureActive

Tff7b72import T7ee787kotlinx.coroutines.flow.combine

Tff7b72import T7ee787kotlinx.coroutines.launch

Tff7b72import T7ee787org.meshtastic.core.common.util.safeCatching

Tff7b72import T7ee787org.meshtastic.core.database.dao.DiscoveryDao

Tff7b72import T7ee787org.meshtastic.core.database.entity.DiscoverySessionEntity

Tff7b72import T7ee787org.meshtastic.core.database.entity.DiscoverySessionStatus

Tff7b72import T7ee787org.meshtastic.core.model.ConnectionState

Tff7b72import T7ee787org.meshtastic.core.repository.MeshPrefs

Tff7b72import T7ee787org.meshtastic.core.repository.ServiceRepository

T8b949e/** Restores persisted discovery sessions only while their original radio still owns the recovery. */

Tff7b72internal Tff7b72class T56d364DiscoveryInterruptedSessionRecoveryTb4b4b4(

Tff7b72private Tff7b72val Te6edf3serviceRepositoryTb4b4b4: Te6edf3ServiceRepositoryTb4b4b4,

Tff7b72private Tff7b72val Te6edf3discoveryDaoTb4b4b4: Te6edf3DiscoveryDaoTb4b4b4,

Tff7b72private Tff7b72val Te6edf3meshPrefsTb4b4b4: Te6edf3MeshPrefsTb4b4b4,

Tff7b72private Tff7b72val Te6edf3isScanActiveTb4b4b4: Te6edf3suspend Tb4b4b4(Tb4b4b4) Tff7b72-Tff7b72> Tffa657BooleanTb4b4b4,

Tff7b72private Tff7b72val Te6edf3scheduleRestoreIfIdleTb4b4b4: Te6edf3suspend Tb4b4b4(Te6edf3DiscoverySessionEntityTb4b4b4) Tff7b72-Tff7b72> Te6edf3DeferredTff7b72<Tffa657BooleanTff7b72>Tff7b72?Tb4b4b4,

Tb4b4b4) Tb4b4b4{

Tff7b72suspend Tff7b72fun Td2a8ffwatchTb4b4b4(Te6edf3onRestoredTb4b4b4: Te6edf3suspend Tb4b4b4(Te6edf3homePresetTb4b4b4: Tffa657StringTb4b4b4) Tff7b72-Tff7b72> Tffa657Unit Tff7b72= Tb4b4b4{Tb4b4b4}Tb4b4b4)Tb4b4b4: Tffa657Unit Tff7b72= Te6edf3coroutineScope Tb4b4b4{

Tff7b72var Te6edf3recoveryJobTb4b4b4: Te6edf3Job? Tff7b72= Tff7b72null

Tff7b72var Te6edf3recoveryDeviceAddressTb4b4b4: Tffa657String? Tff7b72= Tff7b72null

Te6edf3combineTb4b4b4(Te6edf3serviceRepositoryTb4b4b4.Te6edf3connectionStateTb4b4b4, Te6edf3meshPrefsTb4b4b4.Te6edf3deviceAddressTb4b4b4) Tb4b4b4{ Te6edf3stateTb4b4b4, Te6edf3address Tff7b72-Tff7b72> Te6edf3state Te6edf3to Te6edf3address Tb4b4b4}

Tb4b4b4.Te6edf3collect Tb4b4b4{ Tb4b4b4(Te6edf3stateTb4b4b4, Te6edf3addressTb4b4b4) Tff7b72-Tff7b72>

Tff7b72if Tb4b4b4(Te6edf3state Tff7b72!is Te6edf3ConnectionStateTb4b4b4.Te6edf3Connected Tff7b72|Tff7b72| Te6edf3address Tff7b72=Tff7b72= Tff7b72nullTb4b4b4) Tff7b72returnTf0883e@collect

Tff7b72if Tb4b4b4(Te6edf3recoveryJobTff7b72?.Te6edf3isActive Tff7b72=Tff7b72= Tff7b72true Tff7b72&Tff7b72& Te6edf3recoveryDeviceAddress Tff7b72=Tff7b72= Te6edf3addressTb4b4b4) Tff7b72returnTf0883e@collect

T8b949e// A restore can wait through a long disconnect. Device identity participates in ownership so a switch

T8b949e// while Connected cancels the old waiter and immediately evaluates the replacement radio.

Te6edf3recoveryJobTff7b72?.Te6edf3cancelTb4b4b4(Tb4b4b4)

Te6edf3recoveryDeviceAddress Tff7b72= Te6edf3address

Te6edf3recoveryJob Tff7b72= Te6edf3launch Tb4b4b4{

Tff7b72val Te6edf3result Tff7b72= Te6edf3safeCatching Tb4b4b4{ Te6edf3restoreIfAnyTb4b4b4(Te6edf3onRestoredTb4b4b4) Tb4b4b4}

Te6edf3resultTb4b4b4.Te6edf3exceptionOrNullTb4b4b4(Tb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3failure Tff7b72-Tff7b72>

Te6edf3LoggerTb4b4b4.Te6edf3wTb4b4b4(Te6edf3failureTb4b4b4) Tb4b4b4{ Ta5d6ff"Ta5d6ffDiscoveryScanEngine: interrupted-session restore failed; will retryTa5d6ff" Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tff7b72private Tff7b72suspend Tff7b72fun Td2a8ffrestoreIfAnyTb4b4b4(Te6edf3onRestoredTb4b4b4: Te6edf3suspend Tb4b4b4(Te6edf3homePresetTb4b4b4: Tffa657StringTb4b4b4) Tff7b72-Tff7b72> Tffa657UnitTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3address Tff7b72= Te6edf3meshPrefsTb4b4b4.Te6edf3deviceAddressTb4b4b4.Te6edf3value

Tff7b72val Te6edf3session Tff7b72=

Tff7b72if Tb4b4b4(Te6edf3address Tff7b72!Tff7b72= Tff7b72null Tff7b72&Tff7b72& Tff7b72!Te6edf3isScanActiveTb4b4b4(Tb4b4b4)Tb4b4b4) Tb4b4b4{

Te6edf3discoveryDaoTb4b4b4.Te6edf3getInterruptedSessionTb4b4b4(Te6edf3addressTb4b4b4)

Tb4b4b4} Tff7b72else Tb4b4b4{

Tff7b72null

Tb4b4b4}

Tff7b72val Te6edf3recoverable Tff7b72= Te6edf3sessionTff7b72?.Te6edf3takeIf Tb4b4b4{ Tff7b72!Te6edf3isScanActiveTb4b4b4(Tb4b4b4) Tff7b72&Tff7b72& Te6edf3meshPrefsTb4b4b4.Te6edf3deviceAddressTb4b4b4.Te6edf3value Tff7b72=Tff7b72= Te6edf3address Tb4b4b4}

Tff7b72when Tb4b4b4{

Te6edf3recoverable Tff7b72=Tff7b72= Tff7b72null Tff7b72-Tff7b72> Tff7b72return

Te6edf3recoverableTb4b4b4.Te6edf3homeLoraConfig Tff7b72=Tff7b72= Tff7b72null Tff7b72-Tff7b72> Tb4b4b4{

Tff7b72val Te6edf3finalStatus Tff7b72=

Te6edf3finalStatusForPendingRestoreTb4b4b4(

Te6edf3recoverableTb4b4b4.Te6edf3completionStatusTb4b4b4,

Te6edf3default Tff7b72= Te6edf3DiscoverySessionStatusTb4b4b4.Te6edf3UNRESTORABLETb4b4b4,

Tb4b4b4)

Tff7b72val Te6edf3updatedRows Tff7b72= Te6edf3discoveryDaoTb4b4b4.Te6edf3updateRecoverableSessionCompletionStatusTb4b4b4(Te6edf3recoverableTb4b4b4.Te6edf3idTb4b4b4, Te6edf3finalStatusTb4b4b4)

Tff7b72if Tb4b4b4(Te6edf3updatedRows Tff7b72!Tff7b72= T79c0ff1Tb4b4b4) Tb4b4b4{

Te6edf3LoggerTb4b4b4.Te6edf3w Tb4b4b4{

Ta5d6ff"Ta5d6ffDiscoveryScanEngine: session Tffd700${Te6edf3recoverableTb4b4b4.Te6edf3idTffd700}Ta5d6ff was no longer recoverable; Ta5d6ff" Tff7b72+

Ta5d6ff"Tffd700$Te6edf3finalStatusTa5d6ff not writtenTa5d6ff"

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tff7b72else Tff7b72-Tff7b72> Tb4b4b4{

Te6edf3LoggerTb4b4b4.Te6edf3w Tb4b4b4{ Ta5d6ff"Ta5d6ffDiscoveryScanEngine: restoring home config after interrupted session Tffd700${Te6edf3recoverableTb4b4b4.Te6edf3idTffd700}Ta5d6ff" Tb4b4b4}

Tff7b72val Te6edf3restore Tff7b72= Te6edf3scheduleRestoreIfIdleTb4b4b4(Te6edf3recoverableTb4b4b4) Tff7b72?: Tff7b72return

Tff7b72if Tb4b4b4(Te6edf3awaitForegroundRestoreTb4b4b4(Te6edf3restoreTb4b4b4)Tb4b4b4) Tb4b4b4{

Te6edf3onRestoredTb4b4b4(Te6edf3recoverableTb4b4b4.Te6edf3homePresetTb4b4b4)

Tb4b4b4} Tff7b72else Tb4b4b4{

T8b949e// Foreground waiting is bounded, but the application-scope restore can continue. Await the same

T8b949e// Deferred here so a success racing the timeout, or completing later, is still surfaced

T8b949e// exactly once.

Tff7b72val Te6edf3lateResult Tff7b72= Te6edf3runCatching Tb4b4b4{ Te6edf3restoreTb4b4b4.Te6edf3awaitTb4b4b4(Tb4b4b4) Tb4b4b4}

Tff7b72if Tb4b4b4(Te6edf3lateResultTb4b4b4.Te6edf3exceptionOrNullTb4b4b4(Tb4b4b4) Tff7b72is Te6edf3CancellationExceptionTb4b4b4) Tb4b4b4{

Te6edf3currentCoroutineContextTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3ensureActiveTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tff7b72if Tb4b4b4(Te6edf3lateResultTb4b4b4.Te6edf3getOrDefaultTb4b4b4(Tff7b72falseTb4b4b4)Tb4b4b4) Te6edf3onRestoredTb4b4b4(Te6edf3recoverableTb4b4b4.Te6edf3homePresetTb4b4b4)

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}