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9836fd5d13
my_atomic_load() is implemented as __sync_fetch_and_or(var, 0) which writes or-ed value back to var. Memory writes as such have worse performance and scalability than reads. gcc 4.7 and up offers better facility for atomic loads/stores. Use it whenever it is available. |
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| .. | ||
| gcc_builtins.h | ||
| generic-msvc.h | ||
| nolock.h | ||
| rwlock.h | ||
| solaris.h | ||
| x86-gcc.h | ||