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| author | Wan-Teh Chang <wtc-at-google.com@ffmpeg.org> | 2017-07-10 10:24:59 -0700 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2017-07-11 21:27:35 -0400 |
| commit | 15c41cb6adc4d6720d51c21f8baebebce923b213 (patch) | |
| tree | c4f01438041b476d18d1210ba4b9b2ca4897db75 /ffbuild/arch.mak | |
| parent | c34ece57c7a6d0e7df4259be13956e06d2b7b47d (diff) | |
| download | ffmpeg-15c41cb6adc4d6720d51c21f8baebebce923b213.tar.gz | |
pthread_frame: save the FF_DEBUG_THREADS option in PerThreadContext.
Add the debug_threads boolean field to PerThreadContext. For
PerThreadContext *p, p->debug_threads records whether the
FF_DEBUG_THREADS bit is set in p->avctx->debug, and p->debug_threads and
p->avctx->debug are kept in sync. The debug_threads field is defined as
an atomic_int to allow atomic read by another thread in
ff_thread_await_progress().
This fixes the tsan warning that
2e664b9c1e73c80aab91070c1eb7676f04bdd12d attempted to fix:
WARNING: ThreadSanitizer: data race (pid=452658)
Write of size 4 at 0x7b640003f4fc by main thread (mutexes: write M248499):
#0 update_context_from_user [..]/libavcodec/pthread_frame.c:335:19 (5ab42bb1a6f4b068d7863dabe9b2bacc+0xe73859)
[..]
Previous read of size 4 at 0x7b640003f4fc by thread T130 (mutexes: write M248502, write M248500):
#0 ff_thread_await_progress [..]/libavcodec/pthread_frame.c:591:26 (5ab42bb1a6f4b068d7863dabe9b2bacc+0xe749a1)
Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Diffstat (limited to 'ffbuild/arch.mak')
0 files changed, 0 insertions, 0 deletions