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port.h: Make use of compiler support for 32bit atomic ops.

This commit is contained in:
Grazvydas Ignotas 2015-05-12 03:17:35 +03:00 committed by Alexandre Julliard
parent eea6ba9ae9
commit 4419edd79c
2 changed files with 28 additions and 2 deletions
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24
include/wine/port.h
View File

@ -435,12 +435,32 @@ static inline unsigned char interlocked_cmpxchg128( __int64 *dest, __int64 xchg_
#else /* __GNUC__ */
#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
static inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
{
return __sync_val_compare_and_swap( dest, compare, xchg );
}
static inline int interlocked_xchg_add( int *dest, int incr )
{
return __sync_fetch_and_add( dest, incr );
}
static inline int interlocked_xchg( int *dest, int val )
{
int ret;
do ret = *dest; while (!__sync_bool_compare_and_swap( dest, ret, val ));
return ret;
}
#else
extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
extern int interlocked_xchg_add( int *dest, int incr );
extern int interlocked_xchg( int *dest, int val );
#endif
extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
extern int interlocked_xchg( int *dest, int val );
extern void *interlocked_xchg_ptr( void **dest, void *val );
extern int interlocked_xchg_add( int *dest, int incr );
#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

@ -274,6 +274,7 @@ void* interlocked_xchg_ptr( void** dest, void* val )
static pthread_mutex_t interlocked_mutex = PTHREAD_MUTEX_INITIALIZER;
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
int interlocked_cmpxchg( int *dest, int xchg, int compare )
{
pthread_mutex_lock( &interlocked_mutex );
@ -286,6 +287,7 @@ int interlocked_cmpxchg( int *dest, int xchg, int compare )
pthread_mutex_unlock( &interlocked_mutex );
return compare;
}
#endif
void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
{
@ -313,6 +315,7 @@ __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare )
return compare;
}
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
int interlocked_xchg( int *dest, int val )
{
int retv;
@ -322,6 +325,7 @@ int interlocked_xchg( int *dest, int val )
pthread_mutex_unlock( &interlocked_mutex );
return retv;
}
#endif
void *interlocked_xchg_ptr( void **dest, void *val )
{
@ -333,6 +337,7 @@ void *interlocked_xchg_ptr( void **dest, void *val )
return retv;
}
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
int interlocked_xchg_add( int *dest, int incr )
{
int retv;
@ -342,6 +347,7 @@ int interlocked_xchg_add( int *dest, int incr )
pthread_mutex_unlock( &interlocked_mutex );
return retv;
}
#endif
unsigned char interlocked_cmpxchg128( __int64 *dest, __int64 xchg_high, __int64 xchg_low, __int64 *compare )
{