2 // Copyright (c) 2015 Intel Corporation
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
17 #ifndef _LINUX_ATOMIC_H
18 #define _LINUX_ATOMIC_H
20 int android_atomic_release_cas(int32_t oldvalue, int32_t newvalue,
21 volatile int32_t* addr)
23 return !__sync_bool_compare_and_swap(addr, oldvalue, newvalue);
26 #define android_atomic_cmpxchg android_atomic_release_cas
29 #endif /* _LINUX_ATOMIC_H */