thread: New.

2008-09-12  Chris Fairles <chris.fairles@gmail.com>
	    Benjamin Kosnik  <bkoz@redhat.com>

	* include/std/thread: New.
	* include/Makefile.am: Update.
	* include/Makefile.in: Regenerate.
	* src/thread.cc: New.
	* src/Makefile.am: Update.
	* src/Makefile.in: Regenerate.
	* acinclude.m4: Add check for nanosleep.
	* configure.ac: Call it.
	* configure: Regenerate.
	* config.h.in: Likewise.
	* config/abi/pre/gnu.ver: Add exports.
	* doc/doxygen/user.cfg.in: Add thread header.
	* testsuite/lib/libstdc++.exp (check_v3_target_nanosleep): Add.
	* testsuite/lib/dg-options.exp (dg-require-nanosleep): Add.
	* testsuite/30_threads/thread/cons/1.cc: New.
	* testsuite/30_threads/thread/cons/2.cc: Likewise.
	* testsuite/30_threads/thread/cons/3.cc: Likewise.
	* testsuite/30_threads/thread/cons/4.cc: Likewise.
	* testsuite/30_threads/thread/algorithm/1.cc: Likewise.
	* testsuite/30_threads/thread/algorithm/2.cc: Likewise.
	* testsuite/30_threads/thread/member/1.cc: Likewise.
	* testsuite/30_threads/thread/member/2.cc: Likewise.
	* testsuite/30_threads/thread/member/3.cc: Likewise.
	* testsuite/30_threads/thread/this_thread/1.cc: Likewise.
	* testsuite/30_threads/thread/this_thread/2.cc: Likewise.
	* testsuite/30_threads/thread/this_thread/3.cc: Likewise.
	* testsuite/30_threads/thread/this_thread/4.cc: Likewise.
	* testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
	* testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
	* testsuite/17_intro/headers/c++200x/all.cc: Add thread.
	* testsuite/17_intro/headers/c++200x/all_multiple_inclusion.cc: 
	Add thread, condition_variable and mutex.

Co-Authored-By: Benjamin Kosnik <bkoz@redhat.com>

From-SVN: r140332

1 files changed, 139 insertions, 0 deletions

diff --git a/libstdc++-v3/src/thread.cc b/libstdc++-v3/src/thread.cc
new file mode 100644
index 0000000..b869e07
--- /dev/null
+++ b/libstdc++-v3/src/thread.cc
@@ -0,0 +1,139 @@
+// thread -*- C++ -*-
+
+// Copyright (C) 2008 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 2, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <thread>
+#include <bits/move.h> // std::move
+
+#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
+
+namespace std
+{
+  namespace 
+  {
+    extern "C"
+    {
+      void* __thread_proxy(void* __p)
+      {
+	__thread_data_base* __t = static_cast<__thread_data_base*>(__p);
+	__thread_data_ptr __local_thread_data = __t->_M_this_ptr;
+	__t->_M_this_ptr.reset();
+
+	try
+	  {
+	    __local_thread_data->__run();
+	  }
+	catch(...)
+	  {
+	    std::terminate();
+	  }
+
+	return 0;
+      }
+    }
+  }
+
+  thread::thread()
+  { }
+
+  thread::~thread()
+  {
+    detach();
+  }
+
+  thread::id
+  thread::get_id() const
+  {
+    if(_M_thread_data)
+      return thread::id(_M_thread_data->_M_thread_handle); 
+    else
+      return thread::id();
+  }
+
+  bool
+  thread::joinable() const
+  { return get_id() != id(); }
+  
+  void
+  thread::join()
+  {
+    if(joinable())
+      {
+	void* __r = 0;
+	int __e = __gthread_join(_M_thread_data->_M_thread_handle, &__r);
+	if(__e)
+	  __throw_system_error(__e);
+
+	lock_guard<mutex> __lock(_M_thread_data_mutex);
+	_M_thread_data.reset();
+      }
+  }
+
+  void
+  thread::detach()
+  {    
+    if(joinable())
+      {
+	int __e = __gthread_detach(_M_thread_data->_M_thread_handle);
+	if(__e)
+	  __throw_system_error(__e);
+
+	lock_guard<mutex> __lock(_M_thread_data_mutex);
+	_M_thread_data.reset();
+      }
+  }
+
+  void
+  thread::swap(thread&& __t)
+  {
+    std::swap(_M_thread_data, __t._M_thread_data);
+  }
+
+  void 
+  thread::__start_thread()
+  {
+    _M_thread_data->_M_this_ptr = _M_thread_data;
+    int __e = __gthread_create(&_M_thread_data->_M_thread_handle, 
+			       &__thread_proxy, _M_thread_data.get());
+    if(__e)
+      __throw_system_error(__e);
+  }
+
+  namespace this_thread
+  {
+    thread::id
+    get_id()
+    { return thread::id(__gthread_self()); }
+    
+    void
+    yield()
+    { __gthread_yield(); }   
+  }
+}
+
+#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1