Jack2 1.9.12

JackAtomic.h
1 /*
2 Copyright (C) 2004-2008 Grame
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 */
19
20 #ifndef __JackAtomic__
21 #define __JackAtomic__
22
23 #include "JackTypes.h"
24 #include "JackAtomic_os.h"
25
26 static inline long INC_ATOMIC(volatile SInt32* val)
27 {
28 SInt32 actual;
29 do {
30 actual = *val;
31 } while (!CAS(actual, actual + 1, val));
32 return actual;
33 }
34
35 static inline long DEC_ATOMIC(volatile SInt32* val)
36 {
37 SInt32 actual;
38 do {
39 actual = *val;
40 } while (!CAS(actual, actual - 1, val));
41 return actual;
42 }
43
44 #endif
45
46