On Mon, 21 Nov 2016 15:37:48 -0800 Wan-Teh Chang <wtc-at-google....@ffmpeg.org> wrote:
> Hi, > > This patch makes the one-time initialization in av_get_cpu_flags() > thread-safe. The data race was reported by ThreadSanitizer. > > Wan-Teh Chang (1): > avutil: fix data race in av_get_cpu_flags(). > > libavutil/atomic.c | 40 ++++++++++++++++++++++++++++++++++++++++ > libavutil/atomic.h | 34 ++++++++++++++++++++++++++++++++-- > libavutil/atomic_gcc.h | 33 +++++++++++++++++++++++++++++++++ > libavutil/atomic_suncc.h | 19 +++++++++++++++++++ > libavutil/atomic_win32.h | 21 +++++++++++++++++++++ > libavutil/cpu.c | 41 ++++++++++++++++++++++------------------- > libavutil/tests/atomic.c | 13 +++++++++++++ > 7 files changed, 180 insertions(+), 21 deletions(-) > Seems like a good idea, but it's probably better until the C11 atomics from Libav are merged. These can provide relaxed semantics as well. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
