1// thread -*- C++ -*- 2 3// Copyright (C) 2008, 2009 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 3, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// Under Section 7 of GPL version 3, you are granted additional 17// permissions described in the GCC Runtime Library Exception, version 18// 3.1, as published by the Free Software Foundation. 19 20// You should have received a copy of the GNU General Public License and 21// a copy of the GCC Runtime Library Exception along with this program; 22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23// <http://www.gnu.org/licenses/>. 24 25 26#include <thread> 27#include <cerrno> 28 29#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) 30 31namespace std 32{ 33 namespace 34 { 35 extern "C" void* 36 execute_native_thread_routine(void* __p) 37 { 38 thread::_Impl_base* __t = static_cast<thread::_Impl_base*>(__p); 39 thread::__shared_base_type __local; 40 __local.swap(__t->_M_this_ptr); 41 42 __try 43 { 44 __t->_M_run(); 45 } 46 __catch(...) 47 { 48 std::terminate(); 49 } 50 51 return 0; 52 } 53 } 54 55 void 56 thread::join() 57 { 58 int __e = EINVAL; 59 60 if (_M_id != id()) 61 __e = __gthread_join(_M_id._M_thread, NULL); 62 63 if (__e) 64 __throw_system_error(__e); 65 66 _M_id = id(); 67 } 68 69 void 70 thread::detach() 71 { 72 int __e = EINVAL; 73 74 if (_M_id != id()) 75 __e = __gthread_detach(_M_id._M_thread); 76 77 if (__e) 78 __throw_system_error(__e); 79 80 _M_id = id(); 81 } 82 83 void 84 thread::_M_start_thread(__shared_base_type __b) 85 { 86 if (!__gthread_active_p()) 87 __throw_system_error(int(errc::operation_not_permitted)); 88 89 __b->_M_this_ptr = __b; 90 int __e = __gthread_create(&_M_id._M_thread, 91 &execute_native_thread_routine, __b.get()); 92 if (__e) 93 { 94 __b->_M_this_ptr.reset(); 95 __throw_system_error(__e); 96 } 97 } 98} 99 100#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 101