blob: f48c667d03e56e63835e133a7abc259dfcf07b6c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_ATOMIC_COUNT
#define _H_ATOMIC_COUNT
class AtomicCount {
public:
AtomicCount(uint32_t count = 0) : _count (count) {}
uint32_t operator ++ ()
{
return __sync_add_and_fetch(&_count, 1);
}
uint32_t operator -- ()
{
return __sync_sub_and_fetch(&_count, 1);
}
operator uint32_t () { return _count;}
private:
uint32_t _count;
};
#endif
|
