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std::thread(3) C++ Standard Libary std::thread(3) NAME std::thread - std::thread Synopsis Defined in header <thread> class thread; (since C++11) The class thread represents a single thread of execution. Threads allow multiple functions to execute concurrently. Threads begin execution immediately upon construction of the associ- ated thread object (pending any OS scheduling delays), starting at the top-level function provided as a constructor argument. The return value of the top- level function is ignored and if it terminates by throwing an exception, std::termi- nate is called. The top-level function may communicate its return value or an exception to the caller via std::promise or by modifying shared variables (which may require synchronization, see std::mutex and std::atomic) std::thread objects may also be in the state that does not represent any thread (after default construction, move from, detach, or join), and a thread of execution may not be associated with any thread objects (after detach). No two std::thread objects may represent the same thread of execu- tion; std::thread is not CopyConstructible or CopyAssignable, although it is MoveCon- structible and MoveAssignable. Member types Member type Definition native_handle_type(not always present) implementation-defined Member classes id represents the id of a thread (public member class) Member functions constructor constructs new thread object (public member function) destructs the thread object, underlying thread must be joined destructor or detached (public member function) operator= moves the thread object (public member function) Observers checks whether the thread is joinable, i.e. po- tentially running joinable in parallel context (public member function) get_id returns the id of the thread (public member function) native_handle returns the underlying implementation-defined thread handle (public member function) hardware_concurrency returns the number of concurrent threads sup- ported by the [static] implementation (public static member function) Operations join waits for the thread to finish its execution (public member function) permits the thread to execute independently from the thread detach handle (public member function) swap swaps two thread objects (public member function) Non-member functions std::swap(std::thread) specializes the std::swap algorithm (C++11) (function) See also jthread std::thread with support for auto-joining and cancellation (C++20) (class) http://cppreference.com 2022.07.31 std::thread(3)
NAME | Synopsis | Member types | Member classes | Member functions | Observers | Operations | Non-member functions | See also
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