103 строки
4.7 KiB
C
103 строки
4.7 KiB
C
/*
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* $HEADER$
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*/
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/** @file
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*
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* Atomic operations.
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*
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* This API is patterned after the FreeBSD kernel atomic interface,
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* but using C99 integer types. The FreeBSD interface is documented
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* at
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*
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* http://www.freebsd.org/cgi/man.cgi?query=atomic&sektion=9
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*/
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#ifndef LAM_ATOMIC_H
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#define LAM_ATOMIC_H 1
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#include "lam_config.h"
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#include "lam/stdint.h"
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/*
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* prototypes (we may not implement all of this interface)
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*/
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int lam_atomic_cmpset_acq_int(volatile int *p, int old, int fresh);
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int lam_atomic_cmpset_rel_int(volatile int *p, int old, int fresh);
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int lam_atomic_load_acq_int(volatile int *p);
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int lam_atomic_readandclear_int(volatile int *p);
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void lam_atomic_add_acq_int(volatile int *p, int v);
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void lam_atomic_add_rel_int(volatile int *p, int v);
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void lam_atomic_clear_acq_int(volatile int *p, int v);
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void lam_atomic_clear_rel_int(volatile int *p, int v);
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void lam_atomic_set_acq_int(volatile int *p, int v);
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void lam_atomic_set_rel_int(volatile int *p, int v);
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void lam_atomic_store_rel_int(volatile int *p, int v);
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void lam_atomic_subtract_acq_int(volatile int *p, int v);
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void lam_atomic_subtract_rel_int(volatile int *p, int v);
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int lam_atomic_cmpset_acq_long(volatile long *p, long old, long fresh);
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int lam_atomic_cmpset_rel_long(volatile long *p, long old, long fresh);
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long lam_atomic_load_acq_long(volatile long *p);
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long lam_atomic_readandclear_long(volatile long *p);
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void lam_atomic_add_acq_long(volatile long *p, long v);
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void lam_atomic_add_rel_long(volatile long *p, long v);
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void lam_atomic_clear_acq_long(volatile long *p, long v);
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void lam_atomic_clear_rel_long(volatile long *p, long v);
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void lam_atomic_set_acq_long(volatile long *p, long v);
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void lam_atomic_set_rel_long(volatile long *p, long v);
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void lam_atomic_store_rel_long(volatile long *p, long v);
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void lam_atomic_subtract_acq_long(volatile long *p, long v);
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void lam_atomic_subtract_rel_long(volatile long *p, long v);
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int lam_atomic_cmpset_acq_ptr(volatile uintptr_t *p, uintptr_t old, uintptr_t fresh);
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int lam_atomic_cmpset_rel_ptr(volatile uintptr_t *p, uintptr_t old, uintptr_t fresh);
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uintptr_t lam_atomic_load_acq_ptr(volatile uintptr_t *p);
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uintptr_t lam_atomic_readandclear_ptr(volatile uintptr_t *p);
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void lam_atomic_add_acq_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_add_rel_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_clear_acq_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_clear_rel_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_set_acq_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_set_rel_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_store_rel_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_subtract_acq_ptr(volatile uintptr_t *p, uintptr_t v);
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void lam_atomic_subtract_rel_ptr(volatile uintptr_t *p, uintptr_t v);
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int lam_atomic_cmpset_acq_uint32_t(volatile uint32_t *p, uint32_t old, uint32_t fresh);
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int lam_atomic_cmpset_rel_uint32_t(volatile uint32_t *p, uint32_t old, uint32_t fresh);
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uint32_t lam_atomic_load_acq_uint32_t(volatile uint32_t *p);
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uint32_t lam_atomic_readandclear_uint32_t(volatile uint32_t *p);
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void lam_atomic_add_acq_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_add_rel_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_clear_acq_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_clear_rel_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_set_acq_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_set_rel_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_store_rel_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_subtract_acq_uint32_t(volatile uint32_t *p, uint32_t v);
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void lam_atomic_subtract_rel_uint32_t(volatile uint32_t *p, uint32_t v);
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int lam_atomic_cmpset_acq_uint64_t(volatile uint64_t *p, uint64_t old, uint64_t fresh);
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int lam_atomic_cmpset_rel_uint64_t(volatile uint64_t *p, uint64_t old, uint64_t fresh);
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uint64_t lam_atomic_load_acq_uint64_t(volatile uint64_t *p);
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uint64_t lam_atomic_readandclear_uint64_t(volatile uint64_t *p);
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void lam_atomic_add_acq_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_add_rel_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_clear_acq_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_clear_rel_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_set_acq_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_set_rel_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_store_rel_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_subtract_acq_uint64_t(volatile uint64_t *p, uint64_t v);
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void lam_atomic_subtract_rel_uint64_t(volatile uint64_t *p, uint64_t v);
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/*
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* implementation (system specific)
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*/
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#include "lam/os/atomic.h"
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#endif /* LAM_ATOMIC_H */
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