std::future_status
Defined in header <future> | ? | ? |
|---|---|---|
enum class future_status { ready, timeout, deferred }; | ? | (since C++11) |
返回的未来状态。wait_for和wait_until职能std::future和std::shared_future...
Constant | Explanation |
|---|---|
deferred | the shared state contains a deferred function, so the result will be computed only when explicitly requested |
ready | the shared state is ready |
timeout | the shared state did not become ready before specified timeout duration has passed |
另见
wait_for | waits for the result, returns if it is not available for the specified timeout duration (public member function of std::future) |
|---|---|
wait_for | waits for the result, returns if it is not available for the specified timeout duration (public member function of std::shared_future) |
wait_until | waits for the result, returns if it is not available until specified time point has been reached (public member function of std::future) |
wait_until | waits for the result, returns if it is not available until specified time point has been reached (public member function of std::shared_future) |
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