Mar 12, 2024ย ยท The class template std::future provides a mechanism to access the result of asynchronous operations: An asynchronous operation (created via std::async, std::packaged_task,. Dec 28, 2021ย ยท In summary: std::future is an object used in multithreaded programming to receive data or an exception from a different thread; it is one end of a single-use, one-way communication. Oct 23, 2023ย ยท The promise is the "push" end of the promise-future communication channel: the operation that stores a value in the shared state synchronizes-with (as defined in std::memory_order).

Recommended for you

Jul 21, 2020ย ยท A future represents the result of an asynchronous operation, and can have two states: uncompleted or completed. Most likely, as you aren't doing this just for fun, you actually need the. Aug 27, 2021ย ยท If the future is the result of a call to std::async that used lazy evaluation, this function returns immediately without waiting. This function may block for longer than timeout_duration due to. Aug 2, 2020ย ยท If the future is the result of a call to async that used lazy evaluation, this function returns immediately without waiting. The behavior is undefined if valid () is false before the call to this. Oct 28, 2024ย ยท The return type of std::async is std::future, where V is: . The call to std::async synchronizes with the call to f, and the completion of f is sequenced before making the shared state.

You may also like