FM / bits

/usr/include/c++/11/bits

Name	Size	Mode	Actions
algorithmfwd.h	24547	0644	edit dl rm
align.h	3711	0644	edit dl rm
allocated_ptr.h	3329	0644	edit dl rm
allocator.h	9737	0644	edit dl rm
alloc_traits.h	27632	0644	edit dl rm
atomic_base.h	57414	0644	edit dl rm
atomic_futex.h	12394	0644	edit dl rm
atomic_lockfree_defines.h	2353	0644	edit dl rm
atomic_timed_wait.h	13530	0644	edit dl rm
atomic_wait.h	12557	0644	edit dl rm
basic_ios.h	16080	0644	edit dl rm
basic_ios.tcc	6083	0644	edit dl rm
basic_string.h	251944	0644	edit dl rm
basic_string.tcc	54189	0644	edit dl rm
boost_concept_check.h	27182	0644	edit dl rm
c++0x_warning.h	1474	0644	edit dl rm
charconv.h	3435	0644	edit dl rm
char_traits.h	29350	0644	edit dl rm
codecvt.h	25500	0644	edit dl rm
concept_check.h	3423	0644	edit dl rm
cpp_type_traits.h	14003	0644	edit dl rm
cxxabi_forced.h	1811	0644	edit dl rm
cxxabi_init_exception.h	2220	0644	edit dl rm
deque.tcc	42361	0644	edit dl rm
enable_special_members.h	12452	0644	edit dl rm
erase_if.h	2066	0644	edit dl rm
exception.h	2504	0644	edit dl rm
exception_defines.h	1645	0644	edit dl rm
exception_ptr.h	7640	0644	edit dl rm
forward_list.h	50387	0644	edit dl rm
forward_list.tcc	14035	0644	edit dl rm
fstream.tcc	33672	0644	edit dl rm
fs_dir.h	16409	0644	edit dl rm
fs_fwd.h	10771	0644	edit dl rm
fs_ops.h	10739	0644	edit dl rm
fs_path.h	39745	0644	edit dl rm
functexcept.h	3509	0644	edit dl rm
functional_hash.h	8591	0644	edit dl rm
gslice.h	5519	0644	edit dl rm
gslice_array.h	7892	0644	edit dl rm
hashtable.h	84951	0644	edit dl rm
hashtable_policy.h	62156	0644	edit dl rm
hash_bytes.h	2146	0644	edit dl rm
indirect_array.h	7902	0644	edit dl rm
invoke.h	6059	0644	edit dl rm
ios_base.h	31934	0644	edit dl rm
istream.tcc	31595	0644	edit dl rm
iterator_concepts.h	33335	0644	edit dl rm
list.tcc	17201	0644	edit dl rm
localefwd.h	5943	0644	edit dl rm
locale_classes.h	25044	0644	edit dl rm
locale_classes.tcc	8375	0644	edit dl rm
locale_conv.h	18822	0644	edit dl rm
locale_facets.h	93655	0644	edit dl rm
locale_facets.tcc	40463	0644	edit dl rm
locale_facets_nonio.h	69704	0644	edit dl rm
locale_facets_nonio.tcc	47533	0644	edit dl rm
mask_array.h	7716	0644	edit dl rm
max_size_type.h	22715	0644	edit dl rm
memoryfwd.h	2504	0644	edit dl rm
move.h	6798	0644	edit dl rm
nested_exception.h	4887	0644	edit dl rm
node_handle.h	10920	0644	edit dl rm
ostream.tcc	12315	0644	edit dl rm
ostream_insert.h	4038	0644	edit dl rm
parse_numbers.h	7980	0644	edit dl rm
postypes.h	8465	0644	edit dl rm
predefined_ops.h	10177	0644	edit dl rm
ptr_traits.h	6708	0644	edit dl rm
quoted_string.h	5053	0644	edit dl rm
random.h	178359	0644	edit dl rm
random.tcc	105688	0644	edit dl rm
ranges_algo.h	116831	0644	edit dl rm
ranges_algobase.h	18871	0644	edit dl rm
ranges_base.h	24392	0644	edit dl rm
ranges_cmp.h	6017	0644	edit dl rm
ranges_uninitialized.h	18130	0644	edit dl rm
ranges_util.h	20591	0644	edit dl rm
range_access.h	10707	0644	edit dl rm
refwrap.h	13208	0644	edit dl rm
regex.h	103969	0644	edit dl rm
regex.tcc	16492	0644	edit dl rm
regex_automaton.h	10788	0644	edit dl rm
regex_automaton.tcc	7722	0644	edit dl rm
regex_compiler.h	16219	0644	edit dl rm
regex_compiler.tcc	19158	0644	edit dl rm
regex_constants.h	15549	0644	edit dl rm
regex_error.h	5015	0644	edit dl rm
regex_executor.h	8852	0644	edit dl rm
regex_executor.tcc	18837	0644	edit dl rm
regex_scanner.h	7047	0644	edit dl rm
regex_scanner.tcc	15249	0644	edit dl rm
semaphore_base.h	7936	0644	edit dl rm
shared_ptr.h	30981	0644	edit dl rm
shared_ptr_atomic.h	9874	0644	edit dl rm
shared_ptr_base.h	54907	0644	edit dl rm
slice_array.h	9619	0644	edit dl rm
specfun.h	47240	0644	edit dl rm
sstream.tcc	10148	0644	edit dl rm
std_abs.h	3384	0644	edit dl rm
std_function.h	22863	0644	edit dl rm
std_mutex.h	6443	0644	edit dl rm
std_thread.h	8589	0644	edit dl rm
stl_algo.h	214703	0644	edit dl rm
stl_algobase.h	76254	0644	edit dl rm
stl_bvector.h	35574	0644	edit dl rm
stl_construct.h	8800	0644	edit dl rm
stl_deque.h	76970	0644	edit dl rm
stl_function.h	43897	0644	edit dl rm
stl_heap.h	20756	0644	edit dl rm
stl_iterator.h	78851	0644	edit dl rm
stl_iterator_base_funcs.h	8178	0644	edit dl rm
stl_iterator_base_types.h	9662	0644	edit dl rm
stl_list.h	69779	0644	edit dl rm
stl_map.h	54693	0644	edit dl rm
stl_multimap.h	43534	0644	edit dl rm
stl_multiset.h	37675	0644	edit dl rm
stl_numeric.h	14601	0644	edit dl rm
stl_pair.h	20135	0644	edit dl rm
stl_queue.h	25036	0644	edit dl rm
stl_raw_storage_iter.h	3830	0644	edit dl rm
stl_relops.h	4594	0644	edit dl rm
stl_set.h	37939	0644	edit dl rm
stl_stack.h	12684	0644	edit dl rm
stl_tempbuf.h	8655	0644	edit dl rm
stl_tree.h	73922	0644	edit dl rm
stl_uninitialized.h	34013	0644	edit dl rm
stl_vector.h	65919	0644	edit dl rm
streambuf.tcc	4929	0644	edit dl rm
streambuf_iterator.h	15532	0644	edit dl rm
stream_iterator.h	7697	0644	edit dl rm
stringfwd.h	2690	0644	edit dl rm
string_view.tcc	7167	0644	edit dl rm
this_thread_sleep.h	3307	0644	edit dl rm
uniform_int_dist.h	13052	0644	edit dl rm
unique_lock.h	6143	0644	edit dl rm
unique_ptr.h	32537	0644	edit dl rm
unordered_map.h	76669	0644	edit dl rm
unordered_set.h	62934	0644	edit dl rm
uses_allocator.h	6906	0644	edit dl rm
uses_allocator_args.h	7562	0644	edit dl rm
valarray_after.h	23283	0644	edit dl rm
valarray_array.h	21295	0644	edit dl rm
valarray_array.tcc	7254	0644	edit dl rm
valarray_before.h	19142	0644	edit dl rm
vector.tcc	30985	0644	edit dl rm

Edit: /usr/include/c++/11/bits/std_thread.h (8589B)

// std::thread declarations -*- C++ -*-

// Copyright (C) 2008-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/std_thread.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{thread}
 */

#ifndef _GLIBCXX_THREAD_H
#define _GLIBCXX_THREAD_H 1

#pragma GCC system_header

#if __cplusplus >= 201103L
#include <bits/c++config.h>

#include <exception>		// std::terminate
#include <iosfwd>		// std::basic_ostream
#include <tuple>		// std::tuple
#include <bits/functional_hash.h> // std::hash
#include <bits/invoke.h>	// std::__invoke
#include <bits/refwrap.h>       // not required, but helpful to users
#include <bits/unique_ptr.h>	// std::unique_ptr

#ifdef _GLIBCXX_HAS_GTHREADS
# include <bits/gthr.h>
#else
# include <errno.h>
# include <bits/functexcept.h>
#endif

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/** @addtogroup threads
   *  @{
   */

/// thread
  class thread
  {
  public:
#ifdef _GLIBCXX_HAS_GTHREADS
    // Abstract base class for types that wrap arbitrary functors to be
    // invoked in the new thread of execution.
    struct _State
    {
      virtual ~_State();
      virtual void _M_run() = 0;
    };
    using _State_ptr = unique_ptr<_State>;

using native_handle_type = __gthread_t;
#else
    using native_handle_type = int;
#endif

/// thread::id
    class id
    {
      native_handle_type	_M_thread;

public:
      id() noexcept : _M_thread() { }

explicit
      id(native_handle_type __id) : _M_thread(__id) { }

private:
      friend class thread;
      friend struct hash<id>;

friend bool
      operator==(id __x, id __y) noexcept;

#if __cpp_lib_three_way_comparison
      friend strong_ordering
      operator<=>(id __x, id __y) noexcept;
#else
      friend bool
      operator<(id __x, id __y) noexcept;
#endif

template<class _CharT, class _Traits>
	friend basic_ostream<_CharT, _Traits>&
	operator<<(basic_ostream<_CharT, _Traits>& __out, id __id);
    };

private:
    id				_M_id;

// _GLIBCXX_RESOLVE_LIB_DEFECTS
    // 2097.  packaged_task constructors should be constrained
    // 3039. Unnecessary decay in thread and packaged_task
    template<typename _Tp>
      using __not_same = __not_<is_same<__remove_cvref_t<_Tp>, thread>>;

public:
    thread() noexcept = default;

#ifdef _GLIBCXX_HAS_GTHREADS
    template<typename _Callable, typename... _Args,
	     typename = _Require<__not_same<_Callable>>>
      explicit
      thread(_Callable&& __f, _Args&&... __args)
      {
	static_assert( __is_invocable<typename decay<_Callable>::type,
				      typename decay<_Args>::type...>::value,
	  "std::thread arguments must be invocable after conversion to rvalues"
	  );

#ifdef GTHR_ACTIVE_PROXY
	// Create a reference to pthread_create, not just the gthr weak symbol.
	auto __depend = reinterpret_cast<void(*)()>(&pthread_create);
#else
	auto __depend = nullptr;
#endif
	using _Wrapper = _Call_wrapper<_Callable, _Args...>;
	// Create a call wrapper with DECAY_COPY(__f) as its target object
	// and DECAY_COPY(__args)... as its bound argument entities.
	_M_start_thread(_State_ptr(new _State_impl<_Wrapper>(
	      std::forward<_Callable>(__f), std::forward<_Args>(__args)...)),
	    __depend);
      }
#endif // _GLIBCXX_HAS_GTHREADS

~thread()
    {
      if (joinable())
	std::terminate();
    }

thread(const thread&) = delete;

thread(thread&& __t) noexcept
    { swap(__t); }

thread& operator=(const thread&) = delete;

thread& operator=(thread&& __t) noexcept
    {
      if (joinable())
	std::terminate();
      swap(__t);
      return *this;
    }

void
    swap(thread& __t) noexcept
    { std::swap(_M_id, __t._M_id); }

bool
    joinable() const noexcept
    { return !(_M_id == id()); }

void
    join();

void
    detach();

id
    get_id() const noexcept
    { return _M_id; }

/** @pre thread is joinable
     */
    native_handle_type
    native_handle()
    { return _M_id._M_thread; }

// Returns a value that hints at the number of hardware thread contexts.
    static unsigned int
    hardware_concurrency() noexcept;

#ifdef _GLIBCXX_HAS_GTHREADS
  private:
    template<typename _Callable>
      struct _State_impl : public _State
      {
	_Callable		_M_func;

template<typename... _Args>
	  _State_impl(_Args&&... __args)
	  : _M_func(std::forward<_Args>(__args)...)
	  { }

void
	_M_run() { _M_func(); }
      };

void
    _M_start_thread(_State_ptr, void (*)());

#if _GLIBCXX_THREAD_ABI_COMPAT
  public:
    struct _Impl_base;
    typedef shared_ptr<_Impl_base>	__shared_base_type;
    struct _Impl_base
    {
      __shared_base_type	_M_this_ptr;
      virtual ~_Impl_base() = default;
      virtual void _M_run() = 0;
    };

private:
    void
    _M_start_thread(__shared_base_type, void (*)());

void
    _M_start_thread(__shared_base_type);
#endif

private:
    // A call wrapper that does INVOKE(forwarded tuple elements...)
    template<typename _Tuple>
      struct _Invoker
      {
	template<typename... _Args>
	  explicit
	  _Invoker(_Args&&... __args)
	  : _M_t(std::forward<_Args>(__args)...)
	  { }

_Tuple _M_t;

template<typename>
	  struct __result;
	template<typename _Fn, typename... _Args>
	  struct __result<tuple<_Fn, _Args...>>
	  : __invoke_result<_Fn, _Args...>
	  { };

template<size_t... _Ind>
	  typename __result<_Tuple>::type
	  _M_invoke(_Index_tuple<_Ind...>)
	  { return std::__invoke(std::get<_Ind>(std::move(_M_t))...); }

typename __result<_Tuple>::type
	operator()()
	{
	  using _Indices
	    = typename _Build_index_tuple<tuple_size<_Tuple>::value>::__type;
	  return _M_invoke(_Indices());
	}
      };

public:
    template<typename... _Tp>
      using _Call_wrapper = _Invoker<tuple<typename decay<_Tp>::type...>>;
#endif // _GLIBCXX_HAS_GTHREADS
  };

#ifndef _GLIBCXX_HAS_GTHREADS
  inline void thread::join() { std::__throw_system_error(EINVAL); }
  inline void thread::detach() { std::__throw_system_error(EINVAL); }
  inline unsigned int thread::hardware_concurrency() noexcept { return 0; }
#endif

inline void
  swap(thread& __x, thread& __y) noexcept
  { __x.swap(__y); }

inline bool
  operator==(thread::id __x, thread::id __y) noexcept
  {
    // pthread_equal is undefined if either thread ID is not valid, so we
    // can't safely use __gthread_equal on default-constructed values (nor
    // the non-zero value returned by this_thread::get_id() for
    // single-threaded programs using GNU libc). Assume EqualityComparable.
    return __x._M_thread == __y._M_thread;
  }

// N.B. other comparison operators are defined in <thread>

// DR 889.
  /// std::hash specialization for thread::id.
  template<>
    struct hash<thread::id>
    : public __hash_base<size_t, thread::id>
    {
      size_t
      operator()(const thread::id& __id) const noexcept
      { return std::_Hash_impl::hash(__id._M_thread); }
    };

namespace this_thread
  {
    /// this_thread::get_id
    inline thread::id
    get_id() noexcept
    {
#ifndef _GLIBCXX_HAS_GTHREADS
      return thread::id(1);
#elif defined _GLIBCXX_NATIVE_THREAD_ID
      return thread::id(_GLIBCXX_NATIVE_THREAD_ID);
#else
      return thread::id(__gthread_self());
#endif
    }

/// this_thread::yield
    inline void
    yield() noexcept
    {
#if defined _GLIBCXX_HAS_GTHREADS && defined _GLIBCXX_USE_SCHED_YIELD
      __gthread_yield();
#endif
    }

} // namespace this_thread

/// @}

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
#endif // C++11

#endif // _GLIBCXX_THREAD_H

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