2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gstthread.h: Header for GstThread object
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.
24 #ifndef __GST_THREAD_H__
25 #define __GST_THREAD_H__
30 #include <gst/gstbin.h>
35 #endif /* __cplusplus */
37 extern GstElementDetails gst_thread_details;
41 GST_THREAD_STATE_STARTED = GST_BIN_FLAG_LAST,
42 GST_THREAD_STATE_SPINNING,
43 GST_THREAD_STATE_REAPING,
46 GST_THREAD_FLAG_LAST = GST_BIN_FLAG_LAST + 4,
50 #define GST_TYPE_THREAD \
51 (gst_thread_get_type())
52 #define GST_THREAD(obj) \
53 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_THREAD,GstThread))
54 #define GST_THREAD_CLASS(klass) \
55 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_THREAD,GstThreadClass))
56 #define GST_IS_THREAD(obj) \
57 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_THREAD))
58 #define GST_IS_THREAD_CLASS(obj) \
59 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_THREAD))
61 typedef struct _GstThread GstThread;
62 typedef struct _GstThreadClass GstThreadClass;
67 pthread_t thread_id; /* id of the thread, if any */
68 pthread_attr_t attr; /* attributes for the stack space */
69 gint pid; /* the pid of the thread */
70 gint ppid; /* the pid of the thread's parent process */
71 GMutex *lock; /* thread lock/condititon pair ... */
72 GCond *cond; /* .... used to control the thread */
74 gint transition; /* the current state transition */
77 struct _GstThreadClass {
78 GstBinClass parent_class;
81 GType gst_thread_get_type (void);
83 GstElement* gst_thread_new (const gchar *name);
87 #endif /* __cplusplus */
90 #endif /* __GST_THREAD_H__ */