本文整理汇总了C++中Flag::Clear方法的典型用法代码示例。如果您正苦于以下问题：C++ Flag::Clear方法的具体用法？C++ Flag::Clear怎么用？C++ Flag::Clear使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Flag的用法示例。
在下文中一共展示了Flag::Clear方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: setter_thread
TEST(Flag, MultiThreaded)
{
Flag f;
int count = 0;
const int ITERATIONS_COUNT = 100000;
auto setter = [&]() {
for (int i = 0; i < ITERATIONS_COUNT; ++i)
{
while (f.IsSet());
f.Set();
}
};
auto clearer = [&]() {
for (int i = 0; i < ITERATIONS_COUNT; ++i)
{
while (!f.IsSet());
count++;
f.Clear();
}
};
std::thread setter_thread(setter);
std::thread clearer_thread(clearer);
setter_thread.join();
clearer_thread.join();
EXPECT_EQ(ITERATIONS_COUNT, count);
}示例2:
TEST(Flag, SpinLock)
{
// Uses a flag to implement basic spinlocking using TestAndSet.
Flag f;
int count = 0;
const int ITERATIONS_COUNT = 5000;
const int THREADS_COUNT = 50;
auto adder_func = [&]() {
for (int i = 0; i < ITERATIONS_COUNT; ++i)
{
// Acquire the spinlock.
while (!f.TestAndSet());
count++;
f.Clear();
}
};
std::array<std::thread, THREADS_COUNT> threads;
for (auto& th : threads)
th = std::thread(adder_func);
for (auto& th : threads)
th.join();
EXPECT_EQ(ITERATIONS_COUNT * THREADS_COUNT, count);
}