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FFmpeg/libavutil/tests

History

Wan-Teh Chang 2170017a1c avutil: fix data race in av_get_cpu_flags() ... Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variables |flags|, |cpuflags_mask|, and |checked| in libavutil/cpu.c are read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. Remove the |checked| variable because the invalid value of -1 for |flags| can be used to indicate the same condition. Rename |flags| to |cpu_flags| and move it to file scope. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com>		8 years ago
..
.gitignore	avutil: fix data race in av_get_cpu_flags()	8 years ago
adler32.c	…
aes.c	…
avstring.c	…
base64.c	…
blowfish.c	blowfish-test: Use struct allocation functions from the API	9 years ago
cpu.c	…
cpu_init.c	avutil: fix data race in av_get_cpu_flags()	8 years ago
crc.c	…
des.c	…
eval.c	…
fifo.c	…
float_dsp.c	…
hmac.c	…
lfg.c	…
lls.c	…
md5.c	…
opt.c	…
parseutils.c	…
sha.c	…
tree.c	…
xtea.c	xtea-test: Use struct allocation functions from the API	9 years ago