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Commit d6370812 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
Browse files

Merge "TimeStats: fix a racing case" into pi-dev

parents ee7a9ca8 a5da6fe7

libs/gui/BufferQueueProducer.cpp

+8 −8
Original line number Diff line number Diff line
@@ -989,14 +989,6 @@ status_t BufferQueueProducer::queueBuffer(int slot, 
        mCallbackCondition.broadcast();

    }



    // Wait without lock held

    if (connectedApi == NATIVE_WINDOW_API_EGL) {

        // Waiting here allows for two full buffers to be queued but not a

        // third. In the event that frames take varying time, this makes a

        // small trade-off in favor of latency rather than throughput.

        lastQueuedFence->waitForever("Throttling EGL Production");

    }



    // Update and get FrameEventHistory.

    nsecs_t postedTime = systemTime(SYSTEM_TIME_MONOTONIC);

    NewFrameEventsEntry newFrameEventsEntry = {
@@ -1008,6 +1000,14 @@ status_t BufferQueueProducer::queueBuffer(int slot, 
    addAndGetFrameTimestamps(&newFrameEventsEntry,

            getFrameTimestamps ? &output->frameTimestamps : nullptr);



    // Wait without lock held

    if (connectedApi == NATIVE_WINDOW_API_EGL) {

        // Waiting here allows for two full buffers to be queued but not a

        // third. In the event that frames take varying time, this makes a

        // small trade-off in favor of latency rather than throughput.

        lastQueuedFence->waitForever("Throttling EGL Production");

    }



    return NO_ERROR;

}

services/surfaceflinger/TimeStats/TimeStats.cpp

+18 −0
Original line number Diff line number Diff line
@@ -277,6 +277,9 @@ void TimeStats::setLatchTime(const std::string& layerName, uint64_t frameNumber, 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.latchTime = latchTime;
@@ -294,6 +297,9 @@ void TimeStats::setDesiredTime(const std::string& layerName, uint64_t frameNumbe 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.desiredTime = desiredTime;
@@ -311,6 +317,9 @@ void TimeStats::setAcquireTime(const std::string& layerName, uint64_t frameNumbe 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.acquireTime = acquireTime;
@@ -328,6 +337,9 @@ void TimeStats::setAcquireFence(const std::string& layerName, uint64_t frameNumb 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.acquireFence = acquireFence;
@@ -345,6 +357,9 @@ void TimeStats::setPresentTime(const std::string& layerName, uint64_t frameNumbe 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.presentTime = presentTime;
@@ -366,6 +381,9 @@ void TimeStats::setPresentFence(const std::string& layerName, uint64_t frameNumb 
    std::lock_guard<std::mutex> lock(mMutex);

    if (!timeStatsTracker.count(layerName)) return;

    LayerRecord& layerRecord = timeStatsTracker[layerName];

    if (layerRecord.waitData < 0 ||

        layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))

        return;

    TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];

    if (timeRecord.frameNumber == frameNumber) {

        timeRecord.presentFence = presentFence;