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ef51e617c4
Previously, we would issue an #error when using a header that requires threading support or localization support in a configuration where that is disabled. This is unlike what we do for all the other carve outs like no-filesystem, no-wide-characters or no-random-device. Instead of issuing an #error, we normally just remove the problematic parts of the header. This patch makes the handling of no-localization and no-threads consistent with the other carve-outs. I dislike the fact that users won't get an explicit error message when trying to use e.g. ios in a build that doesn't support localization, but I think it is better to handle things consistently. Note that besides the consistency argument, the #error approach doesn't really work anyways since it would break down if we moved towards assuming the C locale only in the no-localization mode.
131 lines
3.1 KiB
C++
131 lines
3.1 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_THREAD
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#define _LIBCPP_THREAD
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/*
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thread synopsis
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namespace std
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{
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class thread
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{
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public:
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class id;
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typedef pthread_t native_handle_type;
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thread() noexcept;
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template <class F, class ...Args> explicit thread(F&& f, Args&&... args);
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~thread();
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thread(const thread&) = delete;
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thread(thread&& t) noexcept;
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thread& operator=(const thread&) = delete;
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thread& operator=(thread&& t) noexcept;
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void swap(thread& t) noexcept;
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bool joinable() const noexcept;
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void join();
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void detach();
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id get_id() const noexcept;
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native_handle_type native_handle();
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static unsigned hardware_concurrency() noexcept;
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};
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void swap(thread& x, thread& y) noexcept;
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class thread::id
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{
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public:
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id() noexcept;
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};
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bool operator==(thread::id x, thread::id y) noexcept;
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bool operator!=(thread::id x, thread::id y) noexcept; // removed in C++20
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bool operator< (thread::id x, thread::id y) noexcept; // removed in C++20
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bool operator<=(thread::id x, thread::id y) noexcept; // removed in C++20
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bool operator> (thread::id x, thread::id y) noexcept; // removed in C++20
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bool operator>=(thread::id x, thread::id y) noexcept; // removed in C++20
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strong_ordering operator<=>(thread::id x, thread::id y) noexcept; // C++20
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template<class charT, class traits>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& out, thread::id id);
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template<class charT>
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struct formatter<thread::id, charT>;
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namespace this_thread
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{
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thread::id get_id() noexcept;
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void yield() noexcept;
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template <class Clock, class Duration>
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void sleep_until(const chrono::time_point<Clock, Duration>& abs_time);
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template <class Rep, class Period>
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void sleep_for(const chrono::duration<Rep, Period>& rel_time);
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} // this_thread
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} // std
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*/
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_THREADS)
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# include <__thread/formatter.h>
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# include <__thread/jthread.h>
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# include <__thread/support.h>
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# include <__thread/this_thread.h>
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# include <__thread/thread.h>
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# include <version>
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// standard-mandated includes
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// [thread.syn]
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# include <compare>
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# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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# endif
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#endif // !defined(_LIBCPP_HAS_NO_THREADS)
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#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES)
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# include <cstddef>
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# include <ctime>
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# include <iosfwd>
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# include <ratio>
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#endif
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#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 17
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# include <chrono>
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#endif
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#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
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# include <cstring>
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# include <functional>
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# include <new>
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# include <system_error>
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# include <type_traits>
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#endif
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#endif // _LIBCPP_THREAD
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