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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* Copyright (C) 2001-2006 Jacek Sieka, arnetheduck on gmail point com
*
* 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.
*/
#if !defined(THREAD_H)
#define THREAD_H
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#ifndef _WIN32
#include <pthread.h>
#include <sched.h>
#include <sys/resource.h>
#endif
#include "Exception.h"
STANDARD_EXCEPTION(ThreadException);
class Thread
{
public:
#ifdef _WIN32
enum Priority {
IDLE = THREAD_PRIORITY_IDLE,
LOW = THREAD_PRIORITY_BELOW_NORMAL,
NORMAL = THREAD_PRIORITY_NORMAL,
HIGH = THREAD_PRIORITY_ABOVE_NORMAL
};
Thread() throw() : threadHandle(INVALID_HANDLE_VALUE), threadId(0){ }
virtual ~Thread() {
if(threadHandle != INVALID_HANDLE_VALUE)
CloseHandle(threadHandle);
}
void start() throw(ThreadException);
void join() throw(ThreadException) {
if(threadHandle == INVALID_HANDLE_VALUE) {
return;
}
WaitForSingleObject(threadHandle, INFINITE);
CloseHandle(threadHandle);
threadHandle = INVALID_HANDLE_VALUE;
}
void setThreadPriority(Priority p) throw() { ::SetThreadPriority(threadHandle, p); }
static void sleep(uint32_t millis) { ::Sleep(millis); }
static void yield() { ::Sleep(1); }
static long safeInc(volatile long& v) { return InterlockedIncrement(&v); }
static long safeDec(volatile long& v) { return InterlockedDecrement(&v); }
static long safeExchange(volatile long& target, long value) { return InterlockedExchange(&target, value); }
#else
enum Priority {
IDLE = 1,
LOW = 1,
NORMAL = 0,
HIGH = -1
};
Thread() throw() : threadHandle(0) { }
virtual ~Thread() {
if(threadHandle != 0) {
pthread_detach(threadHandle);
}
}
void start() throw(ThreadException);
void join() throw() {
if (threadHandle) {
pthread_join(threadHandle, 0);
threadHandle = 0;
}
}
void setThreadPriority(Priority p) { setpriority(PRIO_PROCESS, 0, p); }
static void sleep(uint32_t millis) { ::usleep(millis*1000); }
static void yield() { ::sched_yield(); }
static long safeInc(volatile long& v) {
pthread_mutex_lock(&mtx);
long ret = ++v;
pthread_mutex_unlock(&mtx);
return ret;
}
static long safeDec(volatile long& v) {
pthread_mutex_lock(&mtx);
long ret = --v;
pthread_mutex_unlock(&mtx);
return ret;
}
static long safeExchange(volatile long& target, long value) {
pthread_mutex_lock(&mtx);
long ret = target;
target = value;
pthread_mutex_unlock(&mtx);
return ret;
}
#endif
protected:
virtual int run() = 0;
private:
Thread(const Thread&);
Thread& operator=(const Thread&);
#ifdef _WIN32
HANDLE threadHandle;
DWORD threadId;
static DWORD WINAPI starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return 0;
}
#else
static pthread_mutex_t mtx;
pthread_t threadHandle;
static void* starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return NULL;
}
#endif
};
#endif // !defined(THREAD_H)
|
