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/*
* File : lf_portable_cas.h
* Author : Jérémy Zurcher <jeremy@asynk.ch>
* Date : 05/01/10
* License :
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef LF_PORTABLE_CAS_H_
#define LF_PORTABLE_CAS_H_
#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
#define CompareAndSwapInt(ptr,old_value, new_value) OSAtomicCompareAndSwapInt(old_value, new_value, ptr)
#define CompareAndSwapPointer(ptr,new_value,old_value) OSAtomicCompareAndSwapPtr (old_value, new_value, ptr)
#elif defined(_MSC_VER)
#define CompareAndSwapInt(ptr,old_value,new_value) InterlockedCompareExchange(ptr, new_value, old_value)
#define CompareAndSwapPointer(ptr,new_value,old_value) InterlockedCompareExchange(ptr, new_value, old_value)
#elif (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100
#define CompareAndSwapInt(ptr,old_value,new_value) __sync_bool_compare_and_swap(ptr, old_value, new_value)
#define CompareAndSwapPointer(ptr,new_value,old_value) __sync_val_compare_and_swap(ptr, old_value, new_value)
#else
# error No implementation
#endif
# endif /* LF_PORTABLE_CAS_H_ */
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