SM0 She11

Full Path (server): /usr/include/c++/4.8.2

📄 algorithm [E] [D]
📄 array [E] [D]
📄 atomic [E] [D]
📁 backward Open [D]
📁 bits Open [D]
📄 bitset [E] [D]
📄 cassert [E] [D]
📄 ccomplex [E] [D]
📄 cctype [E] [D]
📄 cerrno [E] [D]
📄 cfenv [E] [D]
📄 cfloat [E] [D]
📄 chrono [E] [D]
📄 cinttypes [E] [D]
📄 ciso646 [E] [D]
📄 climits [E] [D]
📄 clocale [E] [D]
📄 cmath [E] [D]
📄 complex [E] [D]
📄 complex.h [E] [D]
📄 condition_variable [E] [D]
📄 csetjmp [E] [D]
📄 csignal [E] [D]
📄 cstdalign [E] [D]
📄 cstdarg [E] [D]
📄 cstdbool [E] [D]
📄 cstddef [E] [D]
📄 cstdint [E] [D]
📄 cstdio [E] [D]
📄 cstdlib [E] [D]
📄 cstring [E] [D]
📄 ctgmath [E] [D]
📄 ctime [E] [D]
📄 cwchar [E] [D]
📄 cwctype [E] [D]
📄 cxxabi.h [E] [D]
📁 debug Open [D]
📁 decimal Open [D]
📄 deque [E] [D]
📄 exception [E] [D]
📁 ext Open [D]
📄 fenv.h [E] [D]
📄 forward_list [E] [D]
📄 fstream [E] [D]
📄 functional [E] [D]
📄 future [E] [D]
📄 initializer_list [E] [D]
📄 iomanip [E] [D]
📄 ios [E] [D]
📄 iosfwd [E] [D]
📄 iostream [E] [D]
📄 istream [E] [D]
📄 iterator [E] [D]
📄 limits [E] [D]
📄 list [E] [D]
📄 locale [E] [D]
📄 map [E] [D]
📄 memory [E] [D]
📄 mutex [E] [D]
📄 new [E] [D]
📄 numeric [E] [D]
📄 ostream [E] [D]
📁 parallel Open [D]
📁 profile Open [D]
📄 queue [E] [D]
📄 random [E] [D]
📄 ratio [E] [D]
📄 regex [E] [D]
📄 scoped_allocator [E] [D]
📄 set [E] [D]
📄 sstream [E] [D]
📄 stack [E] [D]
📄 stdexcept [E] [D]
📄 streambuf [E] [D]
📄 string [E] [D]
📄 system_error [E] [D]
📄 tgmath.h [E] [D]
📄 thread [E] [D]
📁 tr1 Open [D]
📁 tr2 Open [D]
📄 tuple [E] [D]
📄 type_traits [E] [D]
📄 typeindex [E] [D]
📄 typeinfo [E] [D]
📄 unordered_map [E] [D]
📄 unordered_set [E] [D]
📄 utility [E] [D]
📄 valarray [E] [D]
📄 vector [E] [D]
📁 x86_64-redhat-linux Open [D]

Editing: condition_variable

// <condition_variable> -*- C++ -*-

// Copyright (C) 2008-2013 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 include/condition_variable
 *  This is a Standard C++ Library header.
 */

#ifndef _GLIBCXX_CONDITION_VARIABLE
#define _GLIBCXX_CONDITION_VARIABLE 1

#pragma GCC system_header

#if __cplusplus < 201103L
# include <bits/c++0x_warning.h>
#else

#include <chrono>
#include <mutex> // unique_lock

#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/**
   * @defgroup condition_variables Condition Variables
   * @ingroup concurrency
   *
   * Classes for condition_variable support.
   * @{
   */

/// cv_status
  enum class cv_status { no_timeout, timeout };
  
  /// condition_variable
  class condition_variable
  {
    typedef chrono::system_clock	__clock_t;
    typedef __gthread_cond_t		__native_type;

#ifdef __GTHREAD_COND_INIT
    __native_type			_M_cond = __GTHREAD_COND_INIT;
#else
    __native_type			_M_cond;
#endif

public:
    typedef __native_type* 		native_handle_type;

condition_variable() noexcept;
    ~condition_variable() noexcept;

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

void
    notify_one() noexcept;

void
    notify_all() noexcept;

void
    wait(unique_lock<mutex>& __lock);

template<typename _Predicate>
      void
      wait(unique_lock<mutex>& __lock, _Predicate __p)
      {
	while (!__p())
	  wait(__lock);
      }

template<typename _Duration>
      cv_status
      wait_until(unique_lock<mutex>& __lock,
		 const chrono::time_point<__clock_t, _Duration>& __atime)
      { return __wait_until_impl(__lock, __atime); }

template<typename _Clock, typename _Duration>
      cv_status
      wait_until(unique_lock<mutex>& __lock,
		 const chrono::time_point<_Clock, _Duration>& __atime)
      {
	// DR 887 - Sync unknown clock to known clock.
	const typename _Clock::time_point __c_entry = _Clock::now();
	const __clock_t::time_point __s_entry = __clock_t::now();
	const auto __delta = __atime - __c_entry;
	const auto __s_atime = __s_entry + __delta;

return __wait_until_impl(__lock, __s_atime);
      }

template<typename _Clock, typename _Duration, typename _Predicate>
      bool
      wait_until(unique_lock<mutex>& __lock,
		 const chrono::time_point<_Clock, _Duration>& __atime,
		 _Predicate __p)
      {
	while (!__p())
	  if (wait_until(__lock, __atime) == cv_status::timeout)
	    return __p();
	return true;
      }

template<typename _Rep, typename _Period>
      cv_status
      wait_for(unique_lock<mutex>& __lock,
	       const chrono::duration<_Rep, _Period>& __rtime)
      { return wait_until(__lock, __clock_t::now() + __rtime); }

template<typename _Rep, typename _Period, typename _Predicate>
      bool
      wait_for(unique_lock<mutex>& __lock,
	       const chrono::duration<_Rep, _Period>& __rtime,
	       _Predicate __p)
      { return wait_until(__lock, __clock_t::now() + __rtime, std::move(__p)); }

native_handle_type
    native_handle()
    { return &_M_cond; }

private:
    template<typename _Dur>
      cv_status
      __wait_until_impl(unique_lock<mutex>& __lock,
			const chrono::time_point<__clock_t, _Dur>& __atime)
      {
	auto __s = chrono::time_point_cast<chrono::seconds>(__atime);
	auto __ns = chrono::duration_cast<chrono::nanoseconds>(__atime - __s);

__gthread_time_t __ts =
	  {
	    static_cast<std::time_t>(__s.time_since_epoch().count()),
	    static_cast<long>(__ns.count())
	  };

__gthread_cond_timedwait(&_M_cond, __lock.mutex()->native_handle(),
				 &__ts);

return (__clock_t::now() < __atime
		? cv_status::no_timeout : cv_status::timeout);
      }
  };

/// condition_variable_any
  // Like above, but mutex is not required to have try_lock.
  class condition_variable_any
  {
    typedef chrono::system_clock	__clock_t;
    condition_variable			_M_cond;
    mutex				_M_mutex;

// scoped unlock - unlocks in ctor, re-locks in dtor
    template<typename _Lock>
      struct _Unlock
      {
	explicit _Unlock(_Lock& __lk) : _M_lock(__lk) { __lk.unlock(); }

~_Unlock() noexcept(false)
	{
	  if (uncaught_exception())
	    __try { _M_lock.lock(); } __catch(...) { }
	  else
	    _M_lock.lock();
	}

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

_Lock& _M_lock;
      };

public:

condition_variable_any() noexcept;
    ~condition_variable_any() noexcept;

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

void
    notify_one() noexcept
    {
      lock_guard<mutex> __lock(_M_mutex);
      _M_cond.notify_one();
    }

void
    notify_all() noexcept
    {
      lock_guard<mutex> __lock(_M_mutex);
      _M_cond.notify_all();
    }

template<typename _Lock>
      void
      wait(_Lock& __lock)
      {
	unique_lock<mutex> __my_lock(_M_mutex);
	_Unlock<_Lock> __unlock(__lock);
	// _M_mutex must be unlocked before re-locking __lock so move
	// ownership of _M_mutex lock to an object with shorter lifetime.
	unique_lock<mutex> __my_lock2(std::move(__my_lock));
	_M_cond.wait(__my_lock2);
      }

template<typename _Lock, typename _Predicate>
      void
      wait(_Lock& __lock, _Predicate __p)
      {
	while (!__p())
	  wait(__lock);
      }

template<typename _Lock, typename _Clock, typename _Duration>
      cv_status
      wait_until(_Lock& __lock,
		 const chrono::time_point<_Clock, _Duration>& __atime)
      {
	unique_lock<mutex> __my_lock(_M_mutex);
	_Unlock<_Lock> __unlock(__lock);
	// _M_mutex must be unlocked before re-locking __lock so move
	// ownership of _M_mutex lock to an object with shorter lifetime.
	unique_lock<mutex> __my_lock2(std::move(__my_lock));
	return _M_cond.wait_until(__my_lock2, __atime);
      }

template<typename _Lock, typename _Clock,
	     typename _Duration, typename _Predicate>
      bool
      wait_until(_Lock& __lock,
		 const chrono::time_point<_Clock, _Duration>& __atime,
		 _Predicate __p)
      {
	while (!__p())
	  if (wait_until(__lock, __atime) == cv_status::timeout)
	    return __p();
	return true;
      }

template<typename _Lock, typename _Rep, typename _Period>
      cv_status
      wait_for(_Lock& __lock, const chrono::duration<_Rep, _Period>& __rtime)
      { return wait_until(__lock, __clock_t::now() + __rtime); }

template<typename _Lock, typename _Rep,
	     typename _Period, typename _Predicate>
      bool
      wait_for(_Lock& __lock,
	       const chrono::duration<_Rep, _Period>& __rtime, _Predicate __p)
      { return wait_until(__lock, __clock_t::now() + __rtime, std::move(__p)); }
  };

// @} group condition_variables
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1

#endif // C++11

#endif // _GLIBCXX_CONDITION_VARIABLE