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94540c6b | 1 | // Low-level functions for atomic operations -*- C++ -*- |
2 | ||
3 | // Copyright (C) 2004 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 2, 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 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
18 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
19 | // USA. | |
20 | ||
21 | // As a special exception, you may use this file as part of a free software | |
22 | // library without restriction. Specifically, if other files instantiate | |
23 | // templates or use macros or inline functions from this file, or you compile | |
24 | // this file and link it with other files to produce an executable, this | |
25 | // file does not by itself cause the resulting executable to be covered by | |
26 | // the GNU General Public License. This exception does not however | |
27 | // invalidate any other reasons why the executable file might be covered by | |
28 | // the GNU General Public License. | |
29 | ||
30 | #ifndef _GLIBCXX_ATOMICITY_H | |
31 | #define _GLIBCXX_ATOMICITY_H 1 | |
32 | ||
33 | #include <bits/atomic_word.h> | |
34 | ||
35 | namespace __gnu_cxx | |
36 | { | |
37 | _Atomic_word | |
38 | __attribute__ ((__unused__)) | |
39 | __exchange_and_add(volatile _Atomic_word* __mem, int __val); | |
40 | ||
41 | void | |
42 | __attribute__ ((__unused__)) | |
43 | __atomic_add(volatile _Atomic_word* __mem, int __val); | |
44 | } // namespace __gnu_cxx | |
45 | ||
46 | #endif |