jcondition.cpp
2.77 KB
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "jcondition.h"
#include "jthreadexception.h"
#include <errno.h>
namespace jthread {
Condition::Condition(int nblock)
{
if (pthread_cond_init(&_condition, NULL) != 0) { //&cond) != 0) {
throw ThreadException("Init condition error !");
}
_count = 0;
_nblock = nblock;
}
Condition::~Condition()
{
/*
while (pthread_cond_destroy(&_condition) == EBUSY) {
NotifyAll();
}
*/
pthread_cond_destroy(&_condition);
}
void Condition::Wait()
{
_monitor.Lock();
if (_count == 0) {
if (pthread_cond_wait(&_condition, &_monitor._mutex) != 0) {
throw ThreadException("Condition wait error !");
}
}
_count--;
_monitor.Unlock();
}
void Condition::Wait(struct timespec time_)
{
_monitor.Lock();
if (_count == 0) {
if (pthread_cond_timedwait(&_condition, &_monitor._mutex, &time_) != 0) {
throw ThreadException("Condition wait error !");
}
}
_count--;
_monitor.Unlock();
}
void Condition::Notify()
{
_monitor.Lock();
_count += _nblock;
if (_count == _nblock) {
if (pthread_cond_signal(&_condition) != 0) {
throw ThreadException("Condition notify error !");
}
}
_monitor.Unlock();
}
void Condition::NotifyAll()
{
_monitor.Lock();
_count += _nblock;
if (_count == _nblock) {
if (pthread_cond_broadcast(&_condition) != 0) {
throw ThreadException("Condition notify all error !");
}
}
_monitor.Unlock();
}
};