C++ Threading

this_thread provides functions for accessing the current executing thread.

• std::this_thread::yield() hints the OS to reschedule the execution of threads, allowing other threads to run.
• sleep_for(time) blocks the current thread for at least the specified time.
• sleep_until(time_point) blocks the execution of the current thread until specified time_point has been reached. This time_point is recommended to use std::chrono::steady_clock.

Threads begin execution immediately upon construction of the associated thread object, starting from the function (top-level function) provided as constructor argument. The returned value of top-level function is ignored. If it terminates by throwing an exception, std::terminate() is called. The top-level function may also communicate its returned value or an exception to the caller via std::promise or by modifying shared variables.

join()

blocks the current thread until the thread identified by *this finishes its execution.