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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/* $Id: Thread.c,v 1.14 2004/04/27 19:30:00 titer Exp $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.m0k.org/>.
It may be used under the terms of the GNU General Public License. */
#include "Thread.h"
/**********************************************************************
* HBThread implementation
**********************************************************************/
struct HBThread
{
/* User-friendly name */
char * name;
/* HB_(LOW|NORMAL)_PRIORITY */
int priority;
/* Thread function and argument */
void (*function) ( void * );
void * arg;
/* OS-specific thread id */
#if defined( HB_BEOS )
int thread;
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_t thread;
#elif defined( HB_CYGWIN )
HANDLE thread;
#endif
};
/* HBThreadInit actually starts this routine because
pthread_setschedparam() might fail if called from an external
thread (typically, because the thread exited immediatly). This isn't
really necessary, but I find it nicer that way */
static void ThreadFunc( void * _t )
{
HBThread * t = (HBThread*) _t;
#if defined( HB_MACOSX )
/* Set the thread priority */
struct sched_param param;
memset( ¶m, 0, sizeof( struct sched_param ) );
param.sched_priority = t->priority;
if( pthread_setschedparam( pthread_self(), SCHED_OTHER, ¶m ) )
{
HBLog( "HBThread: couldn't set thread priority" );
}
#endif
/* Start the real routine */
t->function( t->arg );
}
HBThread * HBThreadInit( char * name, void (* function)(void *),
void * arg, int priority )
{
/* Initializations */
HBThread * t;
if( !( t = malloc( sizeof( HBThread ) ) ) )
{
HBLog( "HBThread: malloc() failed, gonna crash" );
return NULL;
}
t->name = strdup( name );
t->priority = priority;
t->function = function;
t->arg = arg;
/* Create and start the thread */
#if defined( HB_BEOS )
t->thread = spawn_thread( (int32 (*)( void * )) ThreadFunc,
name, priority, t );
resume_thread( t->thread );
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_create( &t->thread, NULL,
(void * (*)( void * )) ThreadFunc, t );
#elif defined( HB_CYGWIN )
t->thread = CreateThread( NULL, 0,
(LPTHREAD_START_ROUTINE) ThreadFunc, t, 0, NULL );
#endif
HBLog( "HBThread: thread %d started (\"%s\")",
t->thread, t->name );
return t;
}
void HBThreadClose( HBThread ** _t )
{
HBThread * t = *_t;
/* Join the thread */
#if defined( HB_BEOS )
long exitValue;
wait_for_thread( t->thread, &exitValue );
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_join( t->thread, NULL );
#elif defined( HB_CYGWIN )
WaitForSingleObject( t->thread, INFINITE );
#endif
HBLog( "HBThread: thread %d stopped (\"%s\")",
t->thread, t->name );
/* Clean up */
free( t->name );
free( t );
*_t = NULL;
}
/**********************************************************************
* HBLock implementation
**********************************************************************/
HBLock * HBLockInit()
{
HBLock * l;
if( !( l = malloc( sizeof( HBLock ) ) ) )
{
HBLog( "HBLock: malloc() failed, gonna crash" );
return NULL;
}
#if defined( HB_BEOS )
l->sem = create_sem( 1, "sem" );
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_mutex_init( &l->mutex, NULL );
#elif defined( HB_CYGWIN )
l->mutex = CreateMutex( 0, FALSE, 0 );
#endif
return l;
}
void HBLockClose( HBLock ** _l )
{
HBLock * l = *_l;
#if defined( HB_BEOS )
delete_sem( l->sem );
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_mutex_destroy( &l->mutex );
#elif defined( HB_CYGWIN )
CloseHandle( l->mutex );
#endif
free( l );
*_l = NULL;
}
/**********************************************************************
* HBCond implementation
**********************************************************************/
HBCond * HBCondInit()
{
HBCond * c = malloc( sizeof( HBCond ) );
#if defined( HB_BEOS )
c->thread = -1;
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_cond_init( &c->cond, NULL );
#elif defined( HB_CYGWIN )
c->event = CreateEvent( NULL, FALSE, FALSE, NULL );
#endif
return c;
}
void HBCondClose( HBCond ** _c )
{
HBCond * c = *_c;
#if defined( HB_BEOS )
#elif defined( HB_MACOSX ) || defined( HB_LINUX )
pthread_cond_destroy( &c->cond );
#elif defined( HB_CYGWIN )
CloseHandle( c->event );
#endif
free( c );
*_c = NULL;
}
|
