--- /dev/null
+// <thread> -*- C++ -*-
+
+// Copyright (C) 2008, 2009 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 thread
+ * This is a Standard C++ Library header.
+ */
+
+#ifndef _GLIBCXX_THREAD
+#define _GLIBCXX_THREAD 1
+
+#pragma GCC system_header
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+# include <c++0x_warning.h>
+#else
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <condition_variable>
+#include <cstddef>
+#include <bits/functexcept.h>
+#include <bits/gthr.h>
+
+#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
+
+namespace std
+{
+ /**
+ * @defgroup threads Threads
+ * @ingroup concurrency
+ *
+ * Classes for thread support.
+ * @{
+ */
+
+ /// thread
+ class thread
+ {
+ public:
+ typedef __gthread_t native_handle_type;
+ struct _Impl_base;
+ typedef shared_ptr<_Impl_base> __shared_base_type;
+
+ /// thread::id
+ class id
+ {
+ native_handle_type _M_thread;
+
+ public:
+ id() : _M_thread() { }
+
+ explicit
+ id(native_handle_type __id) : _M_thread(__id) { }
+
+ private:
+ friend class thread;
+
+ friend bool
+ operator==(thread::id __x, thread::id __y)
+ { return __gthread_equal(__x._M_thread, __y._M_thread); }
+
+ friend bool
+ operator<(thread::id __x, thread::id __y)
+ { return __x._M_thread < __y._M_thread; }
+
+ template<class _CharT, class _Traits>
+ friend basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>&& __out, thread::id __id);
+ };
+
+ // Simple base type that the templatized, derived class containing
+ // an arbitrary functor can be converted to and called.
+ struct _Impl_base
+ {
+ __shared_base_type _M_this_ptr;
+
+ virtual ~_Impl_base() = default;
+
+ virtual void _M_run() = 0;
+ };
+
+ template<typename _Callable>
+ struct _Impl : public _Impl_base
+ {
+ _Callable _M_func;
+
+ _Impl(_Callable&& __f) : _M_func(std::forward<_Callable>(__f))
+ { }
+
+ void
+ _M_run() { _M_func(); }
+ };
+
+ private:
+ id _M_id;
+
+ public:
+ thread() = default;
+ thread(const thread&) = delete;
+
+ thread(thread&& __t)
+ { swap(__t); }
+
+ template<typename _Callable>
+ explicit thread(_Callable __f)
+ { _M_start_thread(_M_make_routine<_Callable>(__f)); }
+
+ template<typename _Callable, typename... _Args>
+ thread(_Callable&& __f, _Args&&... __args)
+ { _M_start_thread(_M_make_routine(std::bind(__f, __args...))); }
+
+ ~thread()
+ {
+ if (joinable())
+ std::terminate();
+ }
+
+ thread& operator=(const thread&) = delete;
+
+ thread& operator=(thread&& __t)
+ {
+ if (joinable())
+ std::terminate();
+ swap(__t);
+ return *this;
+ }
+
+ void
+ swap(thread&& __t)
+ { std::swap(_M_id, __t._M_id); }
+
+ bool
+ joinable() const
+ { return !(_M_id == id()); }
+
+ void
+ join();
+
+ void
+ detach();
+
+ thread::id
+ get_id() const
+ { 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()
+ { return 0; }
+
+ private:
+ void
+ _M_start_thread(__shared_base_type);
+
+ template<typename _Callable>
+ shared_ptr<_Impl<_Callable>>
+ _M_make_routine(_Callable&& __f)
+ {
+ // Create and allocate full data structure, not base.
+ return make_shared<_Impl<_Callable>>(std::forward<_Callable>(__f));
+ }
+ };
+
+ inline void
+ swap(thread& __x, thread& __y)
+ { __x.swap(__y); }
+
+ inline void
+ swap(thread&& __x, thread& __y)
+ { __x.swap(__y); }
+
+ inline void
+ swap(thread& __x, thread&& __y)
+ { __x.swap(__y); }
+
+ inline bool
+ operator!=(thread::id __x, thread::id __y)
+ { return !(__x == __y); }
+
+ inline bool
+ operator<=(thread::id __x, thread::id __y)
+ { return !(__y < __x); }
+
+ inline bool
+ operator>(thread::id __x, thread::id __y)
+ { return __y < __x; }
+
+ inline bool
+ operator>=(thread::id __x, thread::id __y)
+ { return !(__x < __y); }
+
+ template<class _CharT, class _Traits>
+ inline basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>&& __out, thread::id __id)
+ {
+ if (__id == thread::id())
+ return __out << "thread::id of a non-executing thread";
+ else
+ return __out << __id._M_thread;
+ }
+
+ /** @namespace std::this_thread
+ * @brief ISO C++ 0x entities sub namespace for thread.
+ * 30.2.2 Namespace this_thread.
+ */
+ namespace this_thread
+ {
+ /// get_id
+ inline thread::id
+ get_id() { return thread::id(__gthread_self()); }
+
+#ifdef _GLIBCXX_USE_SCHED_YIELD
+ /// yield
+ inline void
+ yield()
+ { __gthread_yield(); }
+#endif
+
+#ifdef _GLIBCXX_USE_NANOSLEEP
+ /// sleep_until
+ template<typename _Clock, typename _Duration>
+ inline void
+ sleep_until(const chrono::time_point<_Clock, _Duration>& __atime)
+ { sleep_for(__atime - _Clock::now()); }
+
+ /// sleep_for
+ template<typename _Rep, typename _Period>
+ inline void
+ sleep_for(const chrono::duration<_Rep, _Period>& __rtime)
+ {
+ chrono::seconds __s =
+ chrono::duration_cast<chrono::seconds>(__rtime);
+
+ chrono::nanoseconds __ns =
+ chrono::duration_cast<chrono::nanoseconds>(__rtime - __s);
+
+ __gthread_time_t __ts =
+ {
+ static_cast<std::time_t>(__s.count()),
+ static_cast<long>(__ns.count())
+ };
+
+ ::nanosleep(&__ts, 0);
+ }
+#endif
+ }
+
+ // @} group threads
+}
+
+#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1
+
+#endif // __GXX_EXPERIMENTAL_CXX0X__
+
+#endif // _GLIBCXX_THREAD
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