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1 /* GStreamer
2  * Copyright (C) 2009-2010 Edward Hervey <bilboed@bilboed.com>
3  *           (C) 2011 Wim Taymans <wim.taymans@gmail.com>
4  *
5  * gstatomicqueue.h:
6  *
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.
11  *
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.
16  *
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., 51 Franklin St, Fifth Floor,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #include <glib.h>
24 #include <glib-object.h>
25 #include <gst/gstconfig.h>
26 
27 #ifndef __GST_ATOMIC_QUEUE_H__
28 #define __GST_ATOMIC_QUEUE_H__
29 
30 G_BEGIN_DECLS
31 
32 #define GST_TYPE_ATOMIC_QUEUE (gst_atomic_queue_get_type())
33 
34 /**
35  * GstAtomicQueue:
36  *
37  * Opaque atomic data queue.
38  *
39  * Use the accessor functions to get the stored values.
40  */
41 typedef struct _GstAtomicQueue GstAtomicQueue;
42 
43 
44 GST_API
45 GType              gst_atomic_queue_get_type    (void);
46 
47 GST_API
48 GstAtomicQueue *   gst_atomic_queue_new         (guint initial_size) G_GNUC_MALLOC;
49 
50 GST_API
51 void               gst_atomic_queue_ref         (GstAtomicQueue * queue);
52 
53 GST_API
54 void               gst_atomic_queue_unref       (GstAtomicQueue * queue);
55 
56 GST_API
57 void               gst_atomic_queue_push        (GstAtomicQueue* queue, gpointer data);
58 
59 GST_API
60 gpointer           gst_atomic_queue_pop         (GstAtomicQueue* queue);
61 
62 GST_API
63 gpointer           gst_atomic_queue_peek        (GstAtomicQueue* queue);
64 
65 GST_API
66 guint              gst_atomic_queue_length      (GstAtomicQueue * queue);
67 
68 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAtomicQueue, gst_atomic_queue_unref)
69 
70 G_END_DECLS
71 
72 #endif /* __GST_ATOMIC_QUEUE_H__ */
73