diff options
Diffstat (limited to 'src/atomic_ptr.hpp')
| -rw-r--r-- | src/atomic_ptr.hpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/atomic_ptr.hpp b/src/atomic_ptr.hpp index 8d4c770..2e585b7 100644 --- a/src/atomic_ptr.hpp +++ b/src/atomic_ptr.hpp @@ -82,6 +82,15 @@ namespace xs { #if defined XS_ATOMIC_PTR_WINDOWS return (T*) InterlockedExchangePointer ((PVOID*) &ptr, val_); +#elif defined __GNUC__ && !defined XS_DISABLE_GCC_SYNC_BUILTINS + { + T* ov; + do + { + ov = const_cast<T*>(ptr); + } while (!__sync_bool_compare_and_swap (&ptr, ov, val_)); + return ov; + } #elif defined XS_ATOMIC_PTR_ATOMIC_H return (T*) atomic_swap_ptr (&ptr, val_); #elif defined XS_ATOMIC_PTR_X86 @@ -125,6 +134,8 @@ namespace xs #if defined XS_ATOMIC_PTR_WINDOWS return (T*) InterlockedCompareExchangePointer ( (volatile PVOID*) &ptr, val_, cmp_); +#elif defined __GNUC__ && !defined XS_DISABLE_GCC_SYNC_BUILTINS + return (T*) __sync_val_compare_and_swap (&ptr, cmp_, val_); #elif defined XS_ATOMIC_PTR_ATOMIC_H return (T*) atomic_cas_ptr (&ptr, cmp_, val_); #elif defined XS_ATOMIC_PTR_X86 |