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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP_THREAD11#define _LIBCPP_THREAD12 13/*14 15 thread synopsis16 17namespace std18{19 20class thread21{22public:23 class id;24 typedef pthread_t native_handle_type;25 26 thread() noexcept;27 template <class F, class ...Args> explicit thread(F&& f, Args&&... args);28 ~thread();29 30 thread(const thread&) = delete;31 thread(thread&& t) noexcept;32 33 thread& operator=(const thread&) = delete;34 thread& operator=(thread&& t) noexcept;35 36 void swap(thread& t) noexcept;37 38 bool joinable() const noexcept;39 void join();40 void detach();41 id get_id() const noexcept;42 native_handle_type native_handle();43 44 static unsigned hardware_concurrency() noexcept;45};46 47void swap(thread& x, thread& y) noexcept;48 49class thread::id50{51public:52 id() noexcept;53};54 55bool operator==(thread::id x, thread::id y) noexcept;56bool operator!=(thread::id x, thread::id y) noexcept; // removed in C++2057bool operator< (thread::id x, thread::id y) noexcept; // removed in C++2058bool operator<=(thread::id x, thread::id y) noexcept; // removed in C++2059bool operator> (thread::id x, thread::id y) noexcept; // removed in C++2060bool operator>=(thread::id x, thread::id y) noexcept; // removed in C++2061strong_ordering operator<=>(thread::id x, thread::id y) noexcept; // C++2062 63template<class charT, class traits>64basic_ostream<charT, traits>&65operator<<(basic_ostream<charT, traits>& out, thread::id id);66 67template<class charT>68struct formatter<thread::id, charT>;69 70namespace this_thread71{72 73thread::id get_id() noexcept;74 75void yield() noexcept;76 77template <class Clock, class Duration>78void sleep_until(const chrono::time_point<Clock, Duration>& abs_time);79 80template <class Rep, class Period>81void sleep_for(const chrono::duration<Rep, Period>& rel_time);82 83} // this_thread84 85} // std86 87*/88 89#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)90# include <__cxx03/thread>91#else92# include <__config>93 94# if _LIBCPP_HAS_THREADS95 96# include <__thread/this_thread.h>97# include <__thread/thread.h>98 99# if _LIBCPP_STD_VER >= 20100# include <__thread/jthread.h>101# endif102 103# if _LIBCPP_STD_VER >= 23104# include <__thread/formatter.h>105# endif106 107# include <version>108 109// standard-mandated includes110 111// [thread.syn]112# include <compare>113 114# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)115# pragma GCC system_header116# endif117 118# endif // _LIBCPP_HAS_THREADS119 120# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 17121# include <chrono>122# endif123 124# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20125# include <cstring>126# include <functional>127# include <new>128# include <system_error>129# include <type_traits>130# endif131#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)132 133#endif // _LIBCPP_THREAD134