USA.
***/
+#include <pulsecore/macro.h>
+
/*
* atomic_ops guarantees us that sizeof(AO_t) == sizeof(void*). It is
* not guaranteed however, that sizeof(AO_t) == sizeof(size_t).
* On gcc >= 4.1 we use the builtin atomic functions. otherwise we use
* libatomic_ops
*/
-#
+
#ifndef PACKAGE
#error "Please include config.h before including this file!"
#endif
return pa_atomic_sub(a, 1);
}
-/* Returns non-zero when the operation was successful. */
-static inline int pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
+/* Returns TRUE when the operation was successful. */
+static inline pa_bool_t pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
return __sync_bool_compare_and_swap(&a->value, old_i, new_i);
}
__sync_synchronize();
}
-static inline int pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
+static inline pa_bool_t pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
return __sync_bool_compare_and_swap(&a->value, (long) old_p, (long) new_p);
}
return pa_atomic_sub(a, 1);
}
-static inline int pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
+static inline pa_bool_t pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
int result;
__asm__ __volatile__ ("lock; cmpxchgl %2, %1"
a->value = (unsigned long) p;
}
-static inline int pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
+static inline pa_bool_t pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
void *result;
__asm__ __volatile__ ("lock; cmpxchgq %q2, %1"
: "=a" (result), "=m" (a->value)
: "r" (new_p), "m" (a->value), "0" (old_p));
- return result;
+ return result == old_p;
}
#elif defined(ATOMIC_ARM_INLINE_ASM)
return pa_atomic_sub(a, 1);
}
-static inline int pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
+static inline pa_bool_t pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
unsigned long not_equal, not_exclusive;
pa_memory_barrier();
pa_memory_barrier();
}
-static inline int pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
+static inline pa_bool_t pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
unsigned long not_equal, not_exclusive;
pa_memory_barrier();
return pa_atomic_sub(a, 1);
}
-/* Returns non-zero when the operation was successful. */
-static inline int pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
+/* Returns TRUE when the operation was successful. */
+static inline pa_bool_t pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
pa_bool_t failed;
do {
failed = !!__kernel_cmpxchg(old_i, new_i, &a->value);
pa_memory_barrier();
}
-static inline int pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
+static inline pa_bool_t pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
pa_bool_t failed;
do {
failed = !!__kernel_cmpxchg_u((unsigned long) old_p, (unsigned long) new_p, &a->value);
return (int) AO_fetch_and_sub1_full(&a->value);
}
-static inline int pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
+static inline pa_bool_t pa_atomic_cmpxchg(pa_atomic_t *a, int old_i, int new_i) {
return AO_compare_and_swap_full(&a->value, (unsigned long) old_i, (unsigned long) new_i);
}
AO_store_full(&a->value, (AO_t) p);
}
-static inline int pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
+static inline pa_bool_t pa_atomic_ptr_cmpxchg(pa_atomic_ptr_t *a, void *old_p, void* new_p) {
return AO_compare_and_swap_full(&a->value, (AO_t) old_p, (AO_t) new_p);
}