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atomic_ops: add atomic_fetch_and_and_uint8 wrapper. 

Needed by incomming changes in pbvh.c.

Note that we make it much simpler than for other primitives in this file - think
we could revise its content to make it simpler one day...
This commit is contained in:
Bastien Montagne 2016-01-27 11:46:27 +01:00
parent 5d6d5b7272
commit 7e9103b49c
1 changed files with 22 additions and 0 deletions
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22
intern/atomic/atomic_ops.h
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@ -90,6 +90,8 @@ ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_cas_uint32(uint32_t *v, uint32_t old, uint32_t _new);
ATOMIC_INLINE uint8_t atomic_fetch_and_and_uint8(uint8_t *p, uint8_t b);
ATOMIC_INLINE size_t atomic_add_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_sub_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new);
@ -377,6 +379,26 @@ atomic_cas_uint32(uint32_t *v, uint32_t old, uint32_t _new)
# error "Missing implementation for 32-bit atomic operations"
#endif
/******************************************************************************/
/* 8-bit operations. */
#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1
ATOMIC_INLINE uint8_t
atomic_fetch_and_and_uint8(uint8_t *p, uint8_t b)
{
return __sync_fetch_and_and(p, b);
}
#elif (defined(_MSC_VER))
#include <intrin.h>
#pragma intrinsic(_InterlockedAnd8)
ATOMIC_INLINE uint8_t
atomic_fetch_and_and_uint8(uint8_t *p, uint8_t b)
{
return InterlockedAnd8((char *)p, (char)b);
}
#else
# error "Missing implementation for 8-bit atomic operations"
#endif
/******************************************************************************/
/* size_t operations. */
ATOMIC_INLINE size_t