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add support for atomic operations provided by mac osx

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@36409 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2006-06-30 15:54:13 +00:00
parent 59be0b03b7
commit 40bae2fba3
2 changed files with 28 additions and 1 deletions
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5
configure.ac
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@@ -887,6 +887,11 @@ AC_DEFINE([HAVE_GCC_ATOMICS], 1, [Define to 1 if your GCC C compiler provides at
AC_MSG_RESULT(no)
)
AC_CHECK_HEADER([libkern/OSAtomic.h],
[AC_DEFINE_UNQUOTED([HAVE_OSX_ATOMICS], 1, [Define to 1 if OSX atomic operations are supported.])])
AC_CHECK_SIZEOF(int)
AC_CONFIG_FILES([build_tools/menuselect-deps makeopts])
AC_OUTPUT

22
include/asterisk/lock.h
View File

@@ -738,6 +738,10 @@ int ast_atomic_fetchadd_int_slow(volatile int *p, int v);
#include "asterisk/inline_api.h"
#ifdef __Darwin__
#include "libkern/OSAtomic.h"
#endif
/*! \brief Atomically add v to *p and return * the previous value of *p.
* This can be used to handle reference counts, and the return value
* can be used to generate unique identifiers.
@@ -748,6 +752,15 @@ AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v),
{
return __sync_fetch_and_add(p, v);
})
#elif defined(HAVE_OSX_ATOMICS) && (SIZEOF_INT == 4)
AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v),
{
return OSAtomicAdd32(v, (int32_t *) p);
})
#elif defined(HAVE_OSX_ATOMICS) && (SIZEOF_INT == 8)
AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v),
{
return OSAtomicAdd64(v, (int64_t *) p);
#elif defined (__i386__)
AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v),
{
@@ -773,6 +786,15 @@ AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p),
{
return __sync_sub_and_fetch(p, 1) == 0;
})
#elif defined(HAVE_OSX_ATOMICS) && (SIZEOF_INT == 4)
AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p),
{
return OSAtomicDecrement32((int32_t *) p) == 0;
})
#elif defined(HAVE_OSX_ATOMICS) && (SIZEOF_INT == 8)
AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p),
{
return OSAtomicDecrement64((int64_t *) p) == 0;
#else
AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p),
{