C++ (Cpp) atom::compare_exchange_weak示例

示例#1

文件： scale_test.cpp 项目： schets/contention_test

void test_single_cas(size_t id, size_t nrun) {
    size_t dummy;
    for (size_t i = 0; i < nrun; i++) {
        lock_instr_test.compare_exchange_weak(dummy,
                                              dummy+1,
					      std::memory_order_relaxed,
                                              std::memory_order_relaxed);
    }
}

示例#2

文件： scale_test.cpp 项目： schets/contention_test

void test_many_cas(size_t id, size_t nrun) {
    size_t dummy;
    for (size_t i = 0; i < nrun; i++) {
        while (!lock_instr_test.compare_exchange_weak(dummy,
                                                      dummy+1,
                                                      std::memory_order_relaxed,
                                                      std::memory_order_relaxed))
        {}
    }
}