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1 | // Low-level functions for atomic operations: IRIX version -*- C++ -*- |
2 | ||
748086b7 | 3 | // Copyright (C) 2001, 2004, 2005, 2009 Free Software Foundation, Inc. |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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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 | ||
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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/>. | |
2f974bd2 | 24 | |
2f974bd2 | 25 | #include <mutex.h> |
2e362c74 | 26 | #include <ext/atomicity.h> |
2f974bd2 | 27 | |
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28 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) |
29 | { | |
30 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
3cbc7af0 | 31 | |
00d04db6 | 32 | _Atomic_word |
09f2a1e4 | 33 | __exchange_and_add(volatile _Atomic_word* __mem, int __val) throw () |
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34 | { return (_Atomic_word) test_then_add((unsigned long*) const_cast<_Atomic_word*>(__mem), __val); } |
35 | ||
36 | void | |
09f2a1e4 | 37 | __atomic_add(volatile _Atomic_word* __mem, int __val) throw () |
00d04db6 | 38 | { __exchange_and_add(__mem, __val); } |
3cbc7af0 | 39 | |
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40 | _GLIBCXX_END_NAMESPACE_VERSION |
41 | } // namespace |