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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <atomic>
template <class A, class T>
bool cmpxchg_weak_loop(A& atomic, T& expected, T desired) {
for (int i = 0; i < 10; i++) {
if (atomic.compare_exchange_weak(expected, desired) == true) {
return true;
}
}
return false;
}
template <class A, class T>
bool cmpxchg_weak_loop(A& atomic, T& expected, T desired,
std::memory_order success,
std::memory_order failure) {
for (int i = 0; i < 10; i++) {
if (atomic.compare_exchange_weak(expected, desired, success,
failure) == true) {
return true;
}
}
return false;
}
template <class A, class T>
bool c_cmpxchg_weak_loop(A* atomic, T* expected, T desired) {
for (int i = 0; i < 10; i++) {
if (std::atomic_compare_exchange_weak(atomic, expected, desired) == true) {
return true;
}
}
return false;
}
template <class A, class T>
bool c_cmpxchg_weak_loop(A* atomic, T* expected, T desired,
std::memory_order success,
std::memory_order failure) {
for (int i = 0; i < 10; i++) {
if (std::atomic_compare_exchange_weak_explicit(atomic, expected, desired,
success, failure) == true) {
return true;
}
}
return false;
}
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