1132720Skan// Low-level functions for atomic operations: IRIX version -*- C++ -*- 2132720Skan 3169691Skan// Copyright (C) 2001, 2004, 2005 Free Software Foundation, Inc. 4132720Skan// 5132720Skan// This file is part of the GNU ISO C++ Library. This library is free 6132720Skan// software; you can redistribute it and/or modify it under the 7132720Skan// terms of the GNU General Public License as published by the 8132720Skan// Free Software Foundation; either version 2, or (at your option) 9132720Skan// any later version. 10132720Skan 11132720Skan// This library is distributed in the hope that it will be useful, 12132720Skan// but WITHOUT ANY WARRANTY; without even the implied warranty of 13132720Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14132720Skan// GNU General Public License for more details. 15132720Skan 16132720Skan// You should have received a copy of the GNU General Public License along 17132720Skan// with this library; see the file COPYING. If not, write to the Free 18169691Skan// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19132720Skan// USA. 20132720Skan 21132720Skan// As a special exception, you may use this file as part of a free software 22132720Skan// library without restriction. Specifically, if other files instantiate 23132720Skan// templates or use macros or inline functions from this file, or you compile 24132720Skan// this file and link it with other files to produce an executable, this 25132720Skan// file does not by itself cause the resulting executable to be covered by 26132720Skan// the GNU General Public License. This exception does not however 27132720Skan// invalidate any other reasons why the executable file might be covered by 28132720Skan// the GNU General Public License. 29132720Skan 30132720Skan#include <mutex.h> 31169691Skan#include <ext/atomicity.h> 32132720Skan 33169691Skan_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 34169691Skan 35132720Skan _Atomic_word 36132720Skan __exchange_and_add(volatile _Atomic_word* __mem, int __val) 37132720Skan { return (_Atomic_word) test_then_add((unsigned long*) const_cast<_Atomic_word*>(__mem), __val); } 38132720Skan 39132720Skan void 40132720Skan __atomic_add(volatile _Atomic_word* __mem, int __val) 41132720Skan { __exchange_and_add(__mem, __val); } 42169691Skan 43169691Skan_GLIBCXX_END_NAMESPACE 44