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support for xadd emulation, workaround for Darwin

Browse Source 
include/atomic/nolock.h:
  support for xadd emulation
include/atomic/x86-msvc.h:
  syntax error
include/my_atomic.h:
  support for xadd emulation, cleanup
mysys/my_atomic.c:
  assert
This commit is contained in:
unknown
2006-06-29 15:39:53 +02:00
parent db98fc9450
commit 948caab031
5 changed files with 38 additions and 15 deletions
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26
include/my_atomic.h
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@@ -22,10 +22,17 @@
#include "atomic/nolock.h"
#endif
#ifndef my_atomic_rwlock_init
#ifndef make_atomic_cas_body
#include "atomic/rwlock.h"
#endif
#ifndef make_atomic_add_body
#define make_atomic_add_body(S) \
int ## S tmp=*a; \
while (!my_atomic_cas ## S(a, &tmp, tmp+v)); \
v=tmp;
#endif
#ifdef HAVE_INLINE
#define make_atomic_add(S) \
@@ -87,15 +94,15 @@ extern void my_atomic_store ## S(int ## S volatile *a, int ## S v);
#endif
make_atomic_add( 8)
make_atomic_add(16)
make_atomic_add(32)
make_atomic_cas( 8)
make_atomic_cas(16)
make_atomic_cas(32)
make_atomic_cas(ptr)
make_atomic_add( 8)
make_atomic_add(16)
make_atomic_add(32)
make_atomic_load( 8)
make_atomic_load(16)
make_atomic_load(32)
@@ -116,13 +123,20 @@ make_atomic_swap(ptr)
#undef make_atomic_load
#undef make_atomic_store
#undef make_atomic_swap
#undef intaptr
#undef make_atomic_add_body
#undef make_atomic_cas_body
#undef make_atomic_load_body
#undef make_atomic_store_body
#undef make_atomic_swap_body
#undef intptr
#ifdef _atomic_h_cleanup_
#include _atomic_h_cleanup_
#undef _atomic_h_cleanup_
#endif
typedef int32 intptr; /* TODO configure check */
#define MY_ATOMIC_OK 0
#define MY_ATOMIC_NOT_1CPU 1
extern int my_atomic_initialize();