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Commit 7aa73dc0 authored by Jesse Hall's avatar Jesse Hall
Browse files

Fence: use modern sync info API 

The old sync info API based on the legacy staging Android sync uapi is
deprecated; stop using it here so it can eventually be removed.

Bug: 35326015
Test: adb shell dumpsys SurfaceFinger --latency
Change-Id: Ida58adb0f0057485d3768b959697b4d583abd80b
Merged-In: Ida58adb0f0057485d3768b959697b4d583abd80b
parent a60de57f

libs/ui/Fence.cpp

+8 −8
Original line number Diff line number Diff line
@@ -115,25 +115,25 @@ nsecs_t Fence::getSignalTime() const { 
        return SIGNAL_TIME_INVALID;

    }



    struct sync_fence_info_data* finfo = sync_fence_info(mFenceFd);

    struct sync_file_info* finfo = sync_file_info(mFenceFd);

    if (finfo == NULL) {

        ALOGE("sync_fence_info returned NULL for fd %d", mFenceFd);

        ALOGE("sync_file_info returned NULL for fd %d", mFenceFd);

        return SIGNAL_TIME_INVALID;

    }

    if (finfo->status != 1) {

        sync_fence_info_free(finfo);

        sync_file_info_free(finfo);

        return SIGNAL_TIME_PENDING;

    }



    struct sync_pt_info* pinfo = NULL;

    uint64_t timestamp = 0;

    while ((pinfo = sync_pt_info(finfo, pinfo)) != NULL) {

        if (pinfo->timestamp_ns > timestamp) {

            timestamp = pinfo->timestamp_ns;

    struct sync_fence_info* pinfo = sync_get_fence_info(finfo);

    for (size_t i = 0; i < finfo->num_fences; i++) {

        if (pinfo[i].timestamp_ns > timestamp) {

            timestamp = pinfo[i].timestamp_ns;

        }

    }

    sync_fence_info_free(finfo);



    sync_file_info_free(finfo);

    return nsecs_t(timestamp);

}