Perf: timeline should reuse one background looper thread

This commit is contained in:
ganfra 2019-07-02 19:12:20 +02:00
parent 37199da52f
commit 5b102485bc

View File

@ -30,7 +30,12 @@ import im.vector.matrix.android.api.util.addTo
import im.vector.matrix.android.internal.crypto.NewSessionListener
import im.vector.matrix.android.internal.crypto.model.event.EncryptedEventContent
import im.vector.matrix.android.internal.database.mapper.asDomain
import im.vector.matrix.android.internal.database.model.*
import im.vector.matrix.android.internal.database.model.ChunkEntity
import im.vector.matrix.android.internal.database.model.ChunkEntityFields
import im.vector.matrix.android.internal.database.model.EventAnnotationsSummaryEntity
import im.vector.matrix.android.internal.database.model.EventEntity
import im.vector.matrix.android.internal.database.model.EventEntityFields
import im.vector.matrix.android.internal.database.model.RoomEntity
import im.vector.matrix.android.internal.database.query.findIncludingEvent
import im.vector.matrix.android.internal.database.query.findLastLiveChunkFromRoom
import im.vector.matrix.android.internal.database.query.where
@ -38,7 +43,13 @@ import im.vector.matrix.android.internal.database.query.whereInRoom
import im.vector.matrix.android.internal.task.TaskExecutor
import im.vector.matrix.android.internal.task.configureWith
import im.vector.matrix.android.internal.util.Debouncer
import io.realm.*
import io.realm.OrderedCollectionChangeSet
import io.realm.OrderedRealmCollectionChangeListener
import io.realm.Realm
import io.realm.RealmConfiguration
import io.realm.RealmQuery
import io.realm.RealmResults
import io.realm.Sort
import timber.log.Timber
import java.util.*
import java.util.concurrent.atomic.AtomicBoolean
@ -50,7 +61,6 @@ import kotlin.collections.HashMap
private const val INITIAL_LOAD_SIZE = 20
private const val MIN_FETCHING_COUNT = 30
private const val DISPLAY_INDEX_UNKNOWN = Int.MIN_VALUE
private const val THREAD_NAME = "TIMELINE_DB_THREAD"

internal class DefaultTimeline(
private val roomId: String,
@ -64,18 +74,22 @@ internal class DefaultTimeline(
private val allowedTypes: List<String>?
) : Timeline {

private companion object {
val BACKGROUND_HANDLER = Handler(
HandlerThread("TIMELINE_DB_THREAD").apply { start() }.looper
)
}

override var listener: Timeline.Listener? = null
set(value) {
field = value
backgroundHandler.get()?.post {
BACKGROUND_HANDLER.post {
postSnapshot()
}
}

private val isStarted = AtomicBoolean(false)
private val isReady = AtomicBoolean(false)
private val backgroundHandlerThread = AtomicReference<HandlerThread>()
private val backgroundHandler = AtomicReference<Handler>()
private val mainHandler = Handler(Looper.getMainLooper())
private val backgroundRealm = AtomicReference<Realm>()
private val cancelableBag = CancelableBag()
@ -168,14 +182,14 @@ internal class DefaultTimeline(
override fun onNewSession(roomId: String?, senderKey: String, sessionId: String) {
if (roomId == this@DefaultTimeline.roomId) {
Timber.v("New session id detected for this room")
backgroundHandler.get()?.post {
BACKGROUND_HANDLER.post {
val realm = backgroundRealm.get()
var hasChange = false
builtEvents.forEachIndexed { index, timelineEvent ->
if (timelineEvent.isEncrypted()) {
val eventContent = timelineEvent.root.content.toModel<EncryptedEventContent>()
if (eventContent?.sessionId == sessionId
&& (timelineEvent.root.mClearEvent == null || timelineEvent.root.mCryptoError != null)) {
&& (timelineEvent.root.mClearEvent == null || timelineEvent.root.mCryptoError != null)) {
//we need to rebuild this event
EventEntity.where(realm, eventId = timelineEvent.root.eventId!!).findFirst()?.let {
builtEvents[index] = timelineEventFactory.create(it, realm)
@ -194,7 +208,7 @@ internal class DefaultTimeline(
// Public methods ******************************************************************************

override fun paginate(direction: Timeline.Direction, count: Int) {
backgroundHandler.get()?.post {
BACKGROUND_HANDLER.post {
if (!canPaginate(direction)) {
return@post
}
@ -211,13 +225,8 @@ internal class DefaultTimeline(
override fun start() {
if (isStarted.compareAndSet(false, true)) {
Timber.v("Start timeline for roomId: $roomId and eventId: $initialEventId")
val handlerThread = HandlerThread(THREAD_NAME + hashCode())
handlerThread.start()
val handler = Handler(handlerThread.looper)
this.backgroundHandlerThread.set(handlerThread)
this.backgroundHandler.set(handler)
cryptoService.addNewSessionListener(newSessionListener)
handler.post {
BACKGROUND_HANDLER.post {
val realm = Realm.getInstance(realmConfiguration)
backgroundRealm.set(realm)
clearUnlinkedEvents(realm)
@ -246,14 +255,12 @@ internal class DefaultTimeline(
if (isStarted.compareAndSet(true, false)) {
cryptoService.removeSessionListener(newSessionListener)
Timber.v("Dispose timeline for roomId: $roomId and eventId: $initialEventId")
backgroundHandler.get()?.post {
BACKGROUND_HANDLER.post {
cancelableBag.cancel()
liveEvents.removeAllChangeListeners()
backgroundRealm.getAndSet(null).also {
it.close()
}
backgroundHandler.set(null)
backgroundHandlerThread.getAndSet(null)?.quit()
}
}
}
@ -387,9 +394,9 @@ internal class DefaultTimeline(
private fun executePaginationTask(direction: Timeline.Direction, limit: Int) {
val token = getTokenLive(direction) ?: return
val params = PaginationTask.Params(roomId = roomId,
from = token,
direction = direction.toPaginationDirection(),
limit = limit)
from = token,
direction = direction.toPaginationDirection(),
limit = limit)

Timber.v("Should fetch $limit items $direction")
paginationTask.configureWith(params)
@ -400,7 +407,7 @@ internal class DefaultTimeline(
Timber.v("Success fetching $limit items $direction from pagination request")
} else {
// Database won't be updated, so we force pagination request
backgroundHandler.get()?.post {
BACKGROUND_HANDLER.post {
executePaginationTask(direction, limit)
}
}
@ -441,6 +448,7 @@ internal class DefaultTimeline(
if (count < 1) {
return 0
}
val start = System.currentTimeMillis()
val offsetResults = getOffsetResults(startDisplayIndex, direction, count)
if (offsetResults.isEmpty()) {
return 0
@ -459,7 +467,8 @@ internal class DefaultTimeline(
builtEventsIdMap.entries.filter { it.value >= position }.forEach { it.setValue(it.value + 1) }
builtEventsIdMap[eventEntity.eventId] = position
}
Timber.v("Built ${offsetResults.size} items from db")
val time = System.currentTimeMillis() - start
Timber.v("Built ${offsetResults.size} items from db in $time ms")
return offsetResults.size
}