* ruby_atomic.h (ATOMIC_SIZE_CAS): remove duplicate code as
  ATOMIC_CAS().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43995 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2013-12-05 01:47:58 +00:00
Родитель c06f12031e
Коммит b8434daf6b
1 изменённых файлов: 0 добавлений и 4 удалений

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@ -16,10 +16,6 @@ typedef unsigned int rb_atomic_t;
# define ATOMIC_SIZE_ADD(var, val) __atomic_fetch_add(&(var), (val), __ATOMIC_SEQ_CST) # define ATOMIC_SIZE_ADD(var, val) __atomic_fetch_add(&(var), (val), __ATOMIC_SEQ_CST)
# define ATOMIC_SIZE_SUB(var, val) __atomic_fetch_sub(&(var), (val), __ATOMIC_SEQ_CST) # define ATOMIC_SIZE_SUB(var, val) __atomic_fetch_sub(&(var), (val), __ATOMIC_SEQ_CST)
# define ATOMIC_SIZE_CAS(var, oldval, newval) \
({ size_t oldvaldup = (oldval); \
__atomic_compare_exchange_n(&(var), &oldvaldup, (newval), 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \
oldvaldup; })
#elif defined HAVE_GCC_SYNC_BUILTINS #elif defined HAVE_GCC_SYNC_BUILTINS
/* @shyouhei hack to support atomic operations in case of gcc. Gcc /* @shyouhei hack to support atomic operations in case of gcc. Gcc