29#ifndef _GLIBCXX_THREAD
30#define _GLIBCXX_THREAD 1
32#pragma GCC system_header
36#if __cplusplus < 201103L
40#if __cplusplus > 201703L
45#if __cplusplus > 202002L
52#define __glibcxx_want_jthread
53#define __glibcxx_want_formatters
56namespace std _GLIBCXX_VISIBILITY(default)
58_GLIBCXX_BEGIN_NAMESPACE_VERSION
73#if __cpp_lib_three_way_comparison
74 inline strong_ordering
75 operator<=>(thread::id __x, thread::id __y)
noexcept
76 {
return __x._M_thread <=> __y._M_thread; }
79 operator!=(thread::id __x, thread::id __y)
noexcept
80 {
return !(__x == __y); }
83 operator<(thread::id __x, thread::id __y)
noexcept
87 return __x._M_thread < __y._M_thread;
91 operator<=(thread::id __x, thread::id __y)
noexcept
92 {
return !(__y < __x); }
95 operator>(thread::id __x, thread::id __y)
noexcept
99 operator>=(thread::id __x, thread::id __y)
noexcept
100 {
return !(__x < __y); }
103 template<
class _CharT,
class _Traits>
104 inline basic_ostream<_CharT, _Traits>&
105 operator<<(basic_ostream<_CharT, _Traits>& __out, thread::id __id)
107 if (__id == thread::id())
108 return __out <<
"thread::id of a non-executing thread";
110 return __out << __id._M_thread;
114#ifdef __cpp_lib_jthread
117#ifndef __STRICT_ANSI__
118 template<
typename _Callable,
typename... _Args>
119 constexpr bool __pmf_expects_stop_token =
false;
121 template<
typename _Callable,
typename _Obj,
typename... _Args>
122 constexpr bool __pmf_expects_stop_token<_Callable, _Obj, _Args...>
123 = __and_<is_member_function_pointer<remove_reference_t<_Callable>>,
124 is_invocable<_Callable, _Obj, stop_token, _Args...>>::value;
145 using id = thread::id;
146 using native_handle_type = thread::native_handle_type;
149 : _M_stop_source{nostopstate}
152 template<
typename _Callable,
typename... _Args,
153 typename = enable_if_t<!is_same_v<remove_cvref_t<_Callable>,
156 jthread(_Callable&& __f, _Args&&... __args)
157 : _M_thread{_S_create(_M_stop_source,
std::
forward<_Callable>(__f),
161 jthread(
const jthread&) =
delete;
162 jthread(jthread&&) noexcept = default;
174 operator=(
const jthread&) =
delete;
177 operator=(jthread&& __other)
noexcept
179 std::jthread(
std::move(__other)).swap(*
this);
184 swap(jthread& __other)
noexcept
186 std::swap(_M_stop_source, __other._M_stop_source);
187 std::swap(_M_thread, __other._M_thread);
191 joinable() const noexcept
193 return _M_thread.joinable();
211 return _M_thread.get_id();
214 [[nodiscard]] native_handle_type
217 return _M_thread.native_handle();
220 [[nodiscard]]
static unsigned
221 hardware_concurrency() noexcept
223 return thread::hardware_concurrency();
226 [[nodiscard]] stop_source
227 get_stop_source() noexcept
229 return _M_stop_source;
232 [[nodiscard]] stop_token
233 get_stop_token() const noexcept
235 return _M_stop_source.get_token();
238 bool request_stop() noexcept
240 return _M_stop_source.request_stop();
243 friend void swap(jthread& __lhs, jthread& __rhs)
noexcept
249 template<
typename _Callable,
typename... _Args>
251 _S_create(stop_source& __ssrc, _Callable&& __f, _Args&&... __args)
253#ifndef __STRICT_ANSI__
254 if constexpr (__pmf_expects_stop_token<_Callable, _Args...>)
255 return _S_create_pmf(__ssrc, __f, std::forward<_Args>(__args)...);
258 if constexpr(is_invocable_v<decay_t<_Callable>, stop_token,
260 return thread{std::forward<_Callable>(__f), __ssrc.get_token(),
261 std::forward<_Args>(__args)...};
264 static_assert(is_invocable_v<decay_t<_Callable>,
266 "std::jthread arguments must be invocable after"
267 " conversion to rvalues");
268 return thread{std::forward<_Callable>(__f),
269 std::forward<_Args>(__args)...};
273#ifndef __STRICT_ANSI__
274 template<
typename _Callable,
typename _Obj,
typename... _Args>
276 _S_create_pmf(stop_source& __ssrc, _Callable __f, _Obj&& __obj,
279 return thread{__f, std::forward<_Obj>(__obj), __ssrc.get_token(),
280 std::forward<_Args>(__args)...};
284 stop_source _M_stop_source;
289#ifdef __cpp_lib_formatters
291 template<
typename _CharT>
292 class formatter<thread::id, _CharT>
295 constexpr typename basic_format_parse_context<_CharT>::iterator
296 parse(basic_format_parse_context<_CharT>& __pc)
298 __format::_Spec<_CharT> __spec{};
299 const auto __last = __pc.end();
300 auto __first = __pc.begin();
302 auto __finalize = [
this, &__spec] {
306 auto __finished = [&] {
307 if (__first == __last || *__first ==
'}')
318 __first = __spec._M_parse_fill_and_align(__first, __last);
322 __first = __spec._M_parse_width(__first, __last, __pc);
326 __throw_format_error(
"format error: invalid format-spec for "
330 template<
typename _Out>
331 typename basic_format_context<_Out, _CharT>::iterator
332 format(thread::id __id, basic_format_context<_Out, _CharT>& __fc)
const
336 auto __str = __os.view();
337 return __format::__write_padded_as_spec(__str, __str.size(),
339 __format::_Align_right);
343 __format::_Spec<_CharT> _M_spec;
349_GLIBCXX_END_NAMESPACE_VERSION
constexpr bool operator<=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator>=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator<(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr bool operator>(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
constexpr _Tp && forward(typename std::remove_reference< _Tp >::type &__t) noexcept
Forward an lvalue.
ISO C++ entities toplevel namespace is std.
std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)
Global I/O operators for bitsets.
thread::id get_id() noexcept
The unique identifier of the current thread.
Controlling output for std::string.