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
|
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* <2005> Wim Taymans <wim@fluendo.com>
*
* gsttask.h: Streaming tasks
*
* 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.
*/
#ifndef __GST_TASK_H__
#define __GST_TASK_H__
#include <gst/gstobject.h>
G_BEGIN_DECLS
typedef void (*GstTaskFunction) (void *data);
/* --- standard type macros --- */
#define GST_TYPE_TASK (gst_task_get_type ())
#define GST_TASK(task) (G_TYPE_CHECK_INSTANCE_CAST ((task), GST_TYPE_TASK, GstTask))
#define GST_IS_TASK(task) (G_TYPE_CHECK_INSTANCE_TYPE ((task), GST_TYPE_TASK))
#define GST_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_CAST ((tclass), GST_TYPE_TASK, GstTaskClass))
#define GST_IS_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_TYPE ((tclass), GST_TYPE_TASK))
#define GST_TASK_GET_CLASS(task) (G_TYPE_INSTANCE_GET_CLASS ((task), GST_TYPE_TASK, GstTaskClass))
#define GST_TASK_CAST(task) ((GstTask*)(task))
typedef struct _GstTask GstTask;
typedef struct _GstTaskClass GstTaskClass;
typedef enum {
GST_TASK_STARTED,
GST_TASK_STOPPED,
GST_TASK_PAUSED,
} GstTaskState;
#define GST_TASK_STATE(task) (GST_TASK_CAST(task)->state)
#define GST_TASK_GET_COND(task) (GST_TASK_CAST(task)->cond)
#define GST_TASK_WAIT(task) g_cond_wait(GST_TASK_GET_COND (task), GST_GET_LOCK (task))
#define GST_TASK_SIGNAL(task) g_cond_signal(GST_TASK_GET_COND (task))
#define GST_TASK_BROADCAST(task) g_cond_breadcast(GST_TASK_GET_COND (task))
#define GST_TASK_GET_LOCK(task) (GST_TASK_CAST(task)->lock)
struct _GstTask {
GstObject object;
/*< public >*/ /* with LOCK */
GstTaskState state;
GCond *cond;
GStaticRecMutex *lock;
GstTaskFunction func;
gpointer data;
gboolean running;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
struct _GstTaskClass {
GstObjectClass parent_class;
/*< private >*/
GThreadPool *pool;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
void gst_task_cleanup_all (void);
GType gst_task_get_type (void);
GstTask* gst_task_create (GstTaskFunction func, gpointer data);
void gst_task_set_lock (GstTask *task, GStaticRecMutex *mutex);
GstTaskState gst_task_get_state (GstTask *task);
gboolean gst_task_start (GstTask *task);
gboolean gst_task_stop (GstTask *task);
gboolean gst_task_pause (GstTask *task);
gboolean gst_task_join (GstTask *task);
G_END_DECLS
#endif /* __GST_TASK_H__ */
|
