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
|
/*
* ===========================
* VDK Visual Development Kit
* Version 0.6
* Jan 1999
* ===========================
*
* Copyright (C) 1999, Salmaso Raffaele
* Developed by Salmaso Raffaele <r.salmaso@flashnet.it>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "vdkthread.h"
VDKMutex::VDKMutex () {
pthread_mutex_init (&mutex, (pthread_mutexattr_t *) 0);
};
VDKMutex::~VDKMutex () {
pthread_mutex_destroy (&mutex);
};
VDKMutexEnum VDKMutex::Lock () {
if (pthread_mutex_trylock (&mutex) != 0)
return VDKMUTEX_ERROR;
return VDKMUTEX_OK;
}
VDKMutexEnum VDKMutex::Release () {
if (pthread_mutex_unlock (&mutex) != 0)
return VDKMUTEX_ERROR;
return VDKMUTEX_OK;
};
VDKMutexEnum VDKMutex::Wait (long time) {
if (pthread_mutex_lock (&mutex) != 0)
return VDKMUTEX_ERROR;
return VDKMUTEX_OK;
}
VDKThread::VDKThread () {
state = VDKTHREAD_IDLE;
}
VDKThread::~VDKThread () {
}
VDKThreadEnum VDKThread::Start (void * arg)
{
if (state != VDKTHREAD_IDLE)
return VDKTHREAD_IS_YET_RUNNING;
state = VDKTHREAD_RUNNING;
if (arg == NULL)
{
if (pthread_create (&id, (pthread_attr_t *) 0,
VDKThread::EntryPoint,
(void *) this) != 0)
{
state = VDKTHREAD_IDLE;
return VDKTHREAD_CANNOT_CREATE;
}
}
else
{
if (pthread_create (&id, (pthread_attr_t *) 0,
(void * (*)(void *)) arg,
NULL) != 0) {
state = VDKTHREAD_IDLE;
return VDKTHREAD_CANNOT_CREATE;
}
}
return VDKTHREAD_RUNNING;
}
void * VDKThread::EntryPoint (void * arg) {
VDKThread * thread = (VDKThread *) arg;
thread->Execute ();
return NULL;
}
void VDKThread::Execute () {
}
VDKThreadEnum VDKThread::Stop () {
if (state == VDKTHREAD_RUNNING)
if (pthread_cancel (id) == 0)
state =VDKTHREAD_STOPPED;
return state;
}
void VDKThread::Exit (void * status) {
state = VDKTHREAD_EXITED;
pthread_exit (status);
}
void * VDKThread::Wait () {
void * status = 0;
if (state != VDKTHREAD_IDLE) {
pthread_join (id, &status);
state = VDKTHREAD_IDLE;
}
return status;
}
|
