counter.cpp
3.18 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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/***************************************************************************
* 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 "jthread.h"
#include "jsemaphore.h"
#include "jmutex.h"
#include "jsemaphoretimeoutexception.h"
#include <iostream>
#define NUM_THREADS 3
#define TCOUNT 10
#define COUNT_LIMIT 12
int count = 0;
bool init = false;
int thread_ids[3] = {0, 1, 2};
jthread::Mutex monitor;
jthread::Semaphore sem;
class IncCount : public jthread::Thread {
private:
int id;
public:
IncCount(int i)
{
id = i;
}
virtual ~IncCount()
{
if (monitor.IsLocked() == true) {
monitor.Unlock();
}
}
void Run() {
int i;
for (i=0; i<TCOUNT; i++) {
monitor.Lock();
count++;
if (count == COUNT_LIMIT) {
sem.Notify();
}
std::cout << "inc: thread " << id << ", count " << count << ", unlock mutex." << std::endl;
monitor.Unlock();
}
}
};
class WatchCount : public jthread::Thread {
private:
int id, c;
public:
WatchCount(int i)
{
id = i;
c = 0;
}
virtual ~WatchCount()
{
if (monitor.IsLocked() == true) {
monitor.Unlock();
}
}
void Run() {
std::cout << "Starting watch count: thread " << id << std::endl;
while (count < COUNT_LIMIT+10) {
try {
sem.Wait(10*1000000LL);
} catch (jthread::SemaphoreTimeoutException &e) {
std::cout << "Watch count: thread " << id << ", count " << count << ", condition signal received." << std::endl;
break;
}
}
}
};
int main()
{
try {
IncCount inc1(thread_ids[0]),
inc2(thread_ids[1]);
WatchCount watch1(thread_ids[2]);
watch1.Start();
inc1.Start();
inc2.Start();
watch1.WaitThread();
inc1.WaitThread();
inc2.WaitThread();
} catch (...) {
}
return 0;
}