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port.h: Make use of compiler support for pointer atomic ops.

This commit is contained in:
Grazvydas Ignotas 2015-05-12 03:17:37 +03:00 committed by Alexandre Julliard
parent ae8408f147
commit af6066c288
2 changed files with 22 additions and 0 deletions
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16
include/wine/port.h
View File

@ -456,8 +456,24 @@ extern int interlocked_xchg_add( int *dest, int incr );
extern int interlocked_xchg( int *dest, int val );
#endif
#if (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) && __SIZEOF_POINTER__ == 4) \
|| (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) && __SIZEOF_POINTER__ == 8)
static inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
{
return __sync_val_compare_and_swap( dest, compare, xchg );
}
static inline void *interlocked_xchg_ptr( void **dest, void *val )
{
void *ret;
do ret = *dest; while (!__sync_bool_compare_and_swap( dest, ret, val ));
return ret;
}
#else
extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
extern void *interlocked_xchg_ptr( void **dest, void *val );
#endif
#if defined(__x86_64__) || defined(__aarch64__) || defined(_WIN64)
extern unsigned char interlocked_cmpxchg128( __int64 *dest, __int64 xchg_high,
__int64 xchg_low, __int64 *compare );

6
libs/port/interlocked.c
View File

@ -289,6 +289,8 @@ int interlocked_cmpxchg( int *dest, int xchg, int compare )
}
#endif
#if !(defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) && __SIZEOF_POINTER__ == 4) \
&& !(defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) && __SIZEOF_POINTER__ == 8)
void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
{
pthread_mutex_lock( &interlocked_mutex );
@ -301,6 +303,7 @@ void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
pthread_mutex_unlock( &interlocked_mutex );
return compare;
}
#endif
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
__int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare )
@ -329,6 +332,8 @@ int interlocked_xchg( int *dest, int val )
}
#endif
#if !(defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) && __SIZEOF_POINTER__ == 4) \
&& !(defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) && __SIZEOF_POINTER__ == 8)
void *interlocked_xchg_ptr( void **dest, void *val )
{
void *retv;
@ -338,6 +343,7 @@ void *interlocked_xchg_ptr( void **dest, void *val )
pthread_mutex_unlock( &interlocked_mutex );
return retv;
}
#endif
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
int interlocked_xchg_add( int *dest, int incr )