diff options
| author | Chris Robinson <[email protected]> | 2011-08-29 20:52:13 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2011-08-29 20:52:13 -0700 |
| commit | da081b81c425805eef5b3d4a07c7a213490e04b7 (patch) | |
| tree | 0d122e52f4a5bfb0898940e0b077f60a53c4aeb1 /OpenAL32/Include/alMain.h | |
| parent | 500ad776ea5bba13240cde84b2aa7c1caca77753 (diff) | |
Do a compare-exchange to set the context error
This allows for unlocked context access when getting the error
Diffstat (limited to 'OpenAL32/Include/alMain.h')
| -rw-r--r-- | OpenAL32/Include/alMain.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h index 9a7c1cc4..a0c83254 100644 --- a/OpenAL32/Include/alMain.h +++ b/OpenAL32/Include/alMain.h @@ -235,6 +235,10 @@ static __inline RefCount DecrementRef(volatile RefCount *ptr) static __inline T Exchange_##T(volatile T *ptr, T newval) \ { \ return __sync_lock_test_and_set(ptr, newval); \ +} \ +static __inline ALboolean CompExchange_##T(volatile T *ptr, T oldval, T newval)\ +{ \ + return __sync_bool_compare_and_swap(ptr, oldval, newval); \ } #elif defined(_WIN32) @@ -253,6 +257,14 @@ static __inline T Exchange_##T(volatile T *ptr, T newval) \ volatile LONG *l; \ } u = { ptr }; \ return InterlockedExchange(u.l, newval); \ +} \ +static __inline ALboolean CompExchange_##T(volatile T *ptr, T oldval, T newval)\ +{ \ + union { \ + volatile T *t; \ + volatile LONG *l; \ + } u = { ptr }; \ + return InterlockedCompareExchange(u.l, newval, oldval) == oldval; \ } #elif defined(__APPLE__) @@ -278,6 +290,14 @@ static __inline T Exchange_##T(volatile T *ptr, T newval) \ oldval = *u.i; \ } while(!OSAtomicCompareAndSwap32Barrier(oldval, newval, u.i)); \ return oldval; \ +} \ +static __inline ALboolean CompExchange_##T(volatile T *ptr, T oldval, T newval)\ +{ \ + union { \ + volatile T *t; \ + volatile int32_t *i; \ + } u = { ptr }; \ + return OSAtomicCompareAndSwap32Barrier(oldval, newval, u.i); \ } #else |