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Define atomic_compare_and_exchange_val_acq, atomic_compare_and_exchange_val_rel, atomic_compare_and_exchange_bool_acq, and atomic_compare_and_exchange_bool_rel instead of atomic_compare_and_exchange_acq and atomic_compare_and_exchange_rel.

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This commit is contained in:
Ulrich Drepper 2003-03-21 07:37:36 +00:00
parent d20152e148
commit 18627f615b
1 changed files with 63 additions and 25 deletions
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88
include/atomic.h
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@ -25,27 +25,60 @@
#include <bits/atomic.h>
#ifndef atomic_compare_and_exchange_acq
# define atomic_compare_and_exchange_acq(mem, newval, oldval) \
({ __typeof (__arch_compare_and_exchange_32_acq (mem, newval, oldval)) \
__result; \
#ifndef atomic_compare_and_exchange_val_acq
# define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
({ __typeof (*mem) __result; \
if (sizeof (*mem) == 1) \
__result = __arch_compare_and_exchange_8_acq (mem, newval, oldval); \
__result = __arch_compare_and_exchange_val_8_acq (mem, newval, oldval);\
else if (sizeof (*mem) == 2) \
__result = __arch_compare_and_exchange_16_acq (mem, newval, oldval); \
__result = __arch_compare_and_exchange_val_16_acq (mem, newval,oldval);\
else if (sizeof (*mem) == 4) \
__result = __arch_compare_and_exchange_32_acq (mem, newval, oldval); \
__result = __arch_compare_and_exchange_val_32_acq (mem, newval,oldval);\
else if (sizeof (*mem) == 8) \
__result = __arch_compare_and_exchange_64_acq (mem, newval, oldval); \
__result = __arch_compare_and_exchange_val_64_acq (mem, newval,oldval);\
else \
abort (); \
__result; })
#endif
#ifndef atomic_compare_and_exchange_rel
# define atomic_compare_and_exchange_rel(mem, oldval, newval) \
atomic_compare_and_exchange_acq (mem, oldval, newval)
#ifndef atomic_compare_and_exchange_val_rel
# define atomic_compare_and_exchange_val_rel(mem, oldval, newval) \
atomic_compare_and_exchange_val_acq (mem, oldval, newval)
#endif
#ifndef atomic_compare_and_exchange_bool_acq
# ifdef __arch_compare_and_exchange_bool_32_acq
# define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
({ __typeof (__arch_compare_and_exchange_bool_32_acq (mem, 0, 0)) __result; \
if (sizeof (*mem) == 1) \
__result = __arch_compare_and_exchange_bool_8_acq (mem, newval, \
oldval); \
else if (sizeof (*mem) == 2) \
__result = __arch_compare_and_exchange_bool_16_acq (mem, newval, \
oldval); \
else if (sizeof (*mem) == 4) \
__result = __arch_compare_and_exchange_bool_32_acq (mem, newval, \
oldval); \
else if (sizeof (*mem) == 8) \
__result = __arch_compare_and_exchange_bool_64_acq (mem, newval, \
oldval); \
else \
abort (); \
__result; })
# else
# define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
({ __typeof (oldval) __oldval = (oldval); \
atomic_compare_and_exchange_val_acq (mem, newval, __oldval) != __oldval; \
})
# endif
#endif
#ifndef atomic_compare_and_exchange_bool_rel
# define atomic_compare_and_exchange_bool_rel(mem, oldval, newval) \
atomic_compare_and_exchange_bool_acq (mem, oldval, newval)
#endif
@ -58,9 +91,10 @@
\
do \
__oldval = (*__memp); \
while (__builtin_expect (atomic_compare_and_exchange_acq (__memp, \
__value, \
__oldval), 0));\
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__value, \
__oldval),\
0)); \
\
__oldval; })
#endif
@ -75,10 +109,11 @@
\
do \
__oldval = (*__memp); \
while (__builtin_expect (atomic_compare_and_exchange_acq (__memp, \
__oldval \
+ __value, \
__oldval), 0));\
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__oldval \
+ __value,\
__oldval),\
0)); \
\
__oldval; })
#endif
@ -124,9 +159,11 @@
if (__builtin_expect (__oldval <= 0, 0)) \
break; \
} \
while (__builtin_expect (atomic_compare_and_exchange_acq (__memp, \
__oldval - 1, \
__oldval), 0));\
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__oldval \
- 1, \
__oldval),\
0));\
__oldval; })
#endif
@ -157,10 +194,11 @@
\
do \
__oldval = (*__memp); \
while (__builtin_expect (atomic_compare_and_exchange_acq (__memp, \
__oldval \
| __mask, \
__oldval), 0));\
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__oldval \
| __mask, \
__oldval),\
0)); \
\
__oldval & __mask; })
#endif