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https://github.com/element-hq/element-android
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replacing single context thread with semaphore
- avoids the need for a dedicated long living thread instance
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parent
3725921400
commit
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1 changed files with 4 additions and 6 deletions
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@ -16,15 +16,13 @@
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package im.vector.app.core.di
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import kotlinx.coroutines.DelicateCoroutinesApi
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import kotlinx.coroutines.newSingleThreadContext
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import kotlinx.coroutines.withContext
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import kotlinx.coroutines.sync.Semaphore
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import kotlinx.coroutines.sync.withPermit
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import org.matrix.android.sdk.api.auth.AuthenticationService
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import org.matrix.android.sdk.api.session.Session
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import javax.inject.Inject
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@OptIn(DelicateCoroutinesApi::class)
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private val INITIALIZER_CONTEXT = newSingleThreadContext("session-initializer")
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private val initializerSemaphore = Semaphore(permits = 1)
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class SessionInitializer @Inject constructor(
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private val authenticationService: AuthenticationService,
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@ -38,7 +36,7 @@ class SessionInitializer @Inject constructor(
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* @return the initialized Session or null when no authenticated sessions are available.
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*/
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suspend fun tryInitialize(readCurrentSession: () -> Session?, initializer: (Session) -> Unit): Session? {
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return withContext(INITIALIZER_CONTEXT) {
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return initializerSemaphore.withPermit {
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val currentInMemorySession = readCurrentSession()
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when {
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currentInMemorySession != null -> currentInMemorySession
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