Add atomic.[ch].
Add atomic.[ch], which should have been part of the previous commit.
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jemalloc/include/jemalloc/internal/atomic.h
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77
jemalloc/include/jemalloc/internal/atomic.h
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/******************************************************************************/
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#ifdef JEMALLOC_H_TYPES
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#endif /* JEMALLOC_H_TYPES */
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/******************************************************************************/
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#ifdef JEMALLOC_H_STRUCTS
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#endif /* JEMALLOC_H_STRUCTS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_EXTERNS
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#define atomic_read_uint64(p) atomic_add_uint64(p, 0)
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#define atomic_read_uint32(p) atomic_add_uint32(p, 0)
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#if (LG_SIZEOF_PTR == 3)
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# define atomic_read_z(p) atomic_add_uint64(p, 0)
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# define atomic_add_z(p, x) atomic_add_uint64(p, x)
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# define atomic_sub_z(p, x) atomic_sub_uint64(p, x)
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#elif (LG_SIZEOF_PTR == 2)
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# define atomic_read_z(p) atomic_add_uint32(p, 0)
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# define atomic_add_z(p, x) atomic_add_uint32(p, x)
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# define atomic_sub_z(p, x) atomic_sub_uint32(p, x)
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#endif
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#endif /* JEMALLOC_H_EXTERNS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_INLINES
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#ifndef JEMALLOC_ENABLE_INLINE
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uint64_t atomic_add_uint64(uint64_t *p, uint64_t x);
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uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x);
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uint32_t atomic_add_uint32(uint32_t *p, uint32_t x);
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uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x);
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#endif
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#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ATOMIC_C_))
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/* 64-bit operations. */
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#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
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JEMALLOC_INLINE uint64_t
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atomic_add_uint64(uint64_t *p, uint64_t x)
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{
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return (__sync_add_and_fetch(p, x));
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}
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JEMALLOC_INLINE uint64_t
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atomic_sub_uint64(uint64_t *p, uint64_t x)
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{
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return (__sync_sub_and_fetch(p, x));
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}
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#else
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# error "Missing implementation for 64-bit atomic operations"
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#endif
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/* 32-bit operations. */
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#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
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JEMALLOC_INLINE uint32_t
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atomic_add_uint32(uint32_t *p, uint32_t x)
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{
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return (__sync_add_and_fetch(p, x));
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}
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JEMALLOC_INLINE uint32_t
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atomic_sub_uint32(uint32_t *p, uint32_t x)
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{
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return (__sync_sub_and_fetch(p, x));
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}
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#else
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# error "Missing implementation for 32-bit atomic operations"
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#endif
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#endif
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#endif /* JEMALLOC_H_INLINES */
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/******************************************************************************/
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2
jemalloc/src/atomic.c
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2
jemalloc/src/atomic.c
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#define JEMALLOC_ATOMIC_C_
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#include "jemalloc/internal/jemalloc_internal.h"
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