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}
static OF_INLINE void*
of_atomic_add_ptr(void* volatile *p, intptr_t i)
{
#if !defined(OF_THREADS)
return (*(char* volatile*)p += i);
#elif defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
__asm__ (
"lock\n\t"
"xaddl %0, %2\n\t"
"addl %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
return __sync_add_and_fetch(p, i);
|
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}
static OF_INLINE void*
of_atomic_add_ptr(void* volatile *p, intptr_t i)
{
#if !defined(OF_THREADS)
return (*(char* volatile*)p += i);
#elif defined(OF_X86_ASM)
__asm__ (
"lock\n\t"
"xaddl %0, %2\n\t"
"addl %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_AMD64_ASM)
__asm__ (
"lock\n\t"
"xaddq %0, %2\n\t"
"addq %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
return __sync_add_and_fetch(p, i);
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}
static OF_INLINE void*
of_atomic_sub_ptr(void* volatile *p, intptr_t i)
{
#if !defined(OF_THREADS)
return (*(char* volatile*)p -= i);
#elif defined(OF_X86_ASM) || defined(OF_AMD64_ASM)
__asm__ (
"negl %0\n\t"
"lock\n\t"
"xaddl %0, %2\n\t"
"subl %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
return __sync_sub_and_fetch(p, i);
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}
static OF_INLINE void*
of_atomic_sub_ptr(void* volatile *p, intptr_t i)
{
#if !defined(OF_THREADS)
return (*(char* volatile*)p -= i);
#elif defined(OF_X86_ASM)
__asm__ (
"negl %0\n\t"
"lock\n\t"
"xaddl %0, %2\n\t"
"subl %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_AMD64_ASM)
__asm__ (
"negq %0\n\t"
"lock\n\t"
"xaddq %0, %2\n\t"
"subq %1, %0"
: "+&r"(i)
: "r"(i), "m"(*p)
);
return (void*)i;
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
return __sync_sub_and_fetch(p, i);
|