2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * <2005> Wim Taymans <wim@fluendo.com>
5 * gsttask.h: Streaming tasks
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 #ifndef __GST_TASK_H__
24 #define __GST_TASK_H__
26 #include <gst/gstobject.h>
30 typedef void (*GstTaskFunction) (void *data);
32 /* --- standard type macros --- */
33 #define GST_TYPE_TASK (gst_task_get_type ())
34 #define GST_TASK(task) (G_TYPE_CHECK_INSTANCE_CAST ((task), GST_TYPE_TASK, GstTask))
35 #define GST_IS_TASK(task) (G_TYPE_CHECK_INSTANCE_TYPE ((task), GST_TYPE_TASK))
36 #define GST_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_CAST ((tclass), GST_TYPE_TASK, GstTaskClass))
37 #define GST_IS_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_TYPE ((tclass), GST_TYPE_TASK))
38 #define GST_TASK_GET_CLASS(task) (G_TYPE_INSTANCE_GET_CLASS ((task), GST_TYPE_TASK, GstTaskClass))
39 #define GST_TASK_CAST(task) ((GstTask*)(task))
41 typedef struct _GstTask GstTask;
42 typedef struct _GstTaskClass GstTaskClass;
50 #define GST_TASK_STATE(task) (GST_TASK_CAST(task)->state)
52 #define GST_TASK_GET_COND(task) (GST_TASK_CAST(task)->cond)
53 #define GST_TASK_WAIT(task) g_cond_wait(GST_TASK_GET_COND (task), GST_GET_LOCK (task))
54 #define GST_TASK_SIGNAL(task) g_cond_signal(GST_TASK_GET_COND (task))
55 #define GST_TASK_BROADCAST(task) g_cond_breadcast(GST_TASK_GET_COND (task))
57 #define GST_TASK_GET_LOCK(task) (GST_TASK_CAST(task)->lock)
58 #define GST_TASK_LOCK(task) g_static_rec_mutex_lock(GST_TASK_GET_LOCK(task))
59 #define GST_TASK_UNLOCK(task) g_static_rec_mutex_unlock(GST_TASK_GET_LOCK(task))
60 #define GST_TASK_UNLOCK_FULL(task) g_static_rec_mutex_unlock_full(GST_TASK_GET_LOCK(task))
61 #define GST_TASK_LOCK_FULL(task,t) g_static_rec_mutex_lock_full(GST_TASK_GET_LOCK(task),(t))
66 /*< public >*/ /* with LOCK */
70 GStaticRecMutex *lock;
76 gpointer _gst_reserved[GST_PADDING];
79 struct _GstTaskClass {
80 GstObjectClass parent_class;
86 gpointer _gst_reserved[GST_PADDING];
89 GType gst_task_get_type (void);
91 GstTask* gst_task_create (GstTaskFunction func, gpointer data);
92 void gst_task_set_lock (GstTask *task, GStaticRecMutex *mutex);
94 GstTaskState gst_task_get_state (GstTask *task);
96 gboolean gst_task_start (GstTask *task);
97 gboolean gst_task_stop (GstTask *task);
98 gboolean gst_task_pause (GstTask *task);
102 #endif /* __GST_TASK_H__ */