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Commit Graph

115 Commits (e67741feea1fca56be19e4a4ae25ca077e425673)

Author	SHA1	Message	Date
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
Wan-Teh Chang	048b46b4e2	avutil/tests: add cpu_init to .gitignore and tests/fate ... This is a follow-up to commit d84a21207e, which added the libavutil/tests/cpu_init.c. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Wan-Teh Chang	d84a21207e	avutil/tests: Add cpu_init.c to check whether the one-time initialization in av_get_cpu_flags() has data races. ... Co-author: Dmitry Vyukov of Google Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Thomas Turner	09d39177dc	avutil: Improved selftest coverage for libavutil/fifo.c ... Tested functions: av_fifo_generic_peek(), av_fifo_grow() Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Anton Khirnov	5cc0057f49	lavu: remove the custom atomic API ... It has been replaced by C11 stdatomic.h and is now unused.	8 years ago
Diego Biurrun	ded4a6543d	xtea-test: Use struct allocation functions from the API	9 years ago
Diego Biurrun	8131bd4c22	blowfish-test: Use struct allocation functions from the API	9 years ago
Diego Biurrun	a86ef80494	blowfish-test: Return different values for different errors	9 years ago
Diego Biurrun	a6a750c7ef	tests: Move all test programs to a subdirectory	9 years ago