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lib: add cmpxchg_strong to frratomic.h

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Signed-off-by: David Lamparter <equinox@diac24.net>
This commit is contained in:
David Lamparter 2018-09-18 18:38:49 +02:00 committed by David Lamparter
parent 3c7940063b
commit 4cab68a20d
1 changed files with 6 additions and 1 deletions
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7
lib/frratomic.h
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@ -80,6 +80,9 @@ typedef std::atomic<uint_fast32_t> atomic_uint_fast32_t;
#define atomic_compare_exchange_weak_explicit(atom, expect, desire, mem1, \ #define atomic_compare_exchange_weak_explicit(atom, expect, desire, mem1, \
mem2) \ mem2) \
__atomic_compare_exchange_n(atom, expect, desire, 1, mem1, mem2) __atomic_compare_exchange_n(atom, expect, desire, 1, mem1, mem2)
#define atomic_compare_exchange_strong_explicit(atom, expect, desire, mem1, \
mem2) \
__atomic_compare_exchange_n(atom, expect, desire, 0, mem1, mem2)
/* gcc 4.1 and newer, /* gcc 4.1 and newer,
* clang 3.3 (possibly older) * clang 3.3 (possibly older)
@ -152,7 +155,7 @@ typedef std::atomic<uint_fast32_t> atomic_uint_fast32_t;
rval; \ rval; \
}) })
#define atomic_compare_exchange_weak_explicit(atom, expect, desire, mem1, \ #define atomic_compare_exchange_strong_explicit(atom, expect, desire, mem1, \
mem2) \ mem2) \
({ \ ({ \
typeof(atom) _atom = (atom); \ typeof(atom) _atom = (atom); \
@ -166,6 +169,8 @@ typedef std::atomic<uint_fast32_t> atomic_uint_fast32_t;
*_expect = rval; \ *_expect = rval; \
ret; \ ret; \
}) })
#define atomic_compare_exchange_weak_explicit \
atomic_compare_exchange_strong_explicit
#define atomic_fetch_and_explicit(ptr, val, mem) \ #define atomic_fetch_and_explicit(ptr, val, mem) \
({ \ ({ \