gstreamer/subprojects/gst-rtsp-server/gst/rtsp-server/rtsp-session-pool.h

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/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at gmail.com>
*
* 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
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
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*/
#include <gst/gst.h>
#ifndef __GST_RTSP_SESSION_POOL_H__
#define __GST_RTSP_SESSION_POOL_H__
#include "rtsp-server-prelude.h"
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G_BEGIN_DECLS
typedef struct _GstRTSPSessionPool GstRTSPSessionPool;
typedef struct _GstRTSPSessionPoolClass GstRTSPSessionPoolClass;
typedef struct _GstRTSPSessionPoolPrivate GstRTSPSessionPoolPrivate;
#include "rtsp-session.h"
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#define GST_TYPE_RTSP_SESSION_POOL (gst_rtsp_session_pool_get_type ())
#define GST_IS_RTSP_SESSION_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_SESSION_POOL))
#define GST_IS_RTSP_SESSION_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_SESSION_POOL))
#define GST_RTSP_SESSION_POOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_SESSION_POOL, GstRTSPSessionPoolClass))
#define GST_RTSP_SESSION_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_SESSION_POOL, GstRTSPSessionPool))
#define GST_RTSP_SESSION_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_SESSION_POOL, GstRTSPSessionPoolClass))
#define GST_RTSP_SESSION_POOL_CAST(obj) ((GstRTSPSessionPool*)(obj))
#define GST_RTSP_SESSION_POOL_CLASS_CAST(klass) ((GstRTSPSessionPoolClass*)(klass))
/**
* GstRTSPSessionPool:
*
* An object that keeps track of the active sessions. This object is usually
* attached to a #GstRTSPServer object to manage the sessions in that server.
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*/
struct _GstRTSPSessionPool {
GObject parent;
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/*< private >*/
GstRTSPSessionPoolPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
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};
/**
* GstRTSPSessionPoolClass:
* @create_session_id: create a new random session id. Subclasses can create
* custom session ids and should not check if the session exists.
* @create_session: make a new session object.
* @session_removed: a session was removed from the pool
*/
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struct _GstRTSPSessionPoolClass {
GObjectClass parent_class;
gchar * (*create_session_id) (GstRTSPSessionPool *pool);
GstRTSPSession * (*create_session) (GstRTSPSessionPool *pool, const gchar *id);
/* signals */
void (*session_removed) (GstRTSPSessionPool *pool,
GstRTSPSession *session);
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE - 1];
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};
/**
* GstRTSPSessionPoolFunc:
* @pool: a #GstRTSPSessionPool object
* @user_data: user data that has been given when registering the handler
*
* The function that will be called from the GSource watch on the session pool.
*
* The function will be called when the pool must be cleaned up because one or
* more sessions timed out.
*
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* Returns: %FALSE if the source should be removed.
*/
typedef gboolean (*GstRTSPSessionPoolFunc) (GstRTSPSessionPool *pool, gpointer user_data);
/**
* GstRTSPSessionPoolFilterFunc:
* @pool: a #GstRTSPSessionPool object
* @session: a #GstRTSPSession in @pool
* @user_data: user data that has been given to gst_rtsp_session_pool_filter()
*
* This function will be called by the gst_rtsp_session_pool_filter(). An
* implementation should return a value of #GstRTSPFilterResult.
*
* When this function returns #GST_RTSP_FILTER_REMOVE, @session will be removed
* from @pool.
*
* A return value of #GST_RTSP_FILTER_KEEP will leave @session untouched in
* @pool.
*
* A value of GST_RTSP_FILTER_REF will add @session to the result #GList of
* gst_rtsp_session_pool_filter().
*
* Returns: a #GstRTSPFilterResult.
*/
typedef GstRTSPFilterResult (*GstRTSPSessionPoolFilterFunc) (GstRTSPSessionPool *pool,
GstRTSPSession *session,
gpointer user_data);
GST_RTSP_SERVER_API
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GType gst_rtsp_session_pool_get_type (void);
/* creating a session pool */
GST_RTSP_SERVER_API
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GstRTSPSessionPool * gst_rtsp_session_pool_new (void);
/* counting sessions */
GST_RTSP_SERVER_API
void gst_rtsp_session_pool_set_max_sessions (GstRTSPSessionPool *pool, guint max);
GST_RTSP_SERVER_API
guint gst_rtsp_session_pool_get_max_sessions (GstRTSPSessionPool *pool);
GST_RTSP_SERVER_API
guint gst_rtsp_session_pool_get_n_sessions (GstRTSPSessionPool *pool);
/* managing sessions */
GST_RTSP_SERVER_API
GstRTSPSession * gst_rtsp_session_pool_create (GstRTSPSessionPool *pool);
GST_RTSP_SERVER_API
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GstRTSPSession * gst_rtsp_session_pool_find (GstRTSPSessionPool *pool,
const gchar *sessionid);
GST_RTSP_SERVER_API
gboolean gst_rtsp_session_pool_remove (GstRTSPSessionPool *pool,
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GstRTSPSession *sess);
/* perform session maintenance */
GST_RTSP_SERVER_API
GList * gst_rtsp_session_pool_filter (GstRTSPSessionPool *pool,
GstRTSPSessionPoolFilterFunc func,
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gpointer user_data);
GST_RTSP_SERVER_API
guint gst_rtsp_session_pool_cleanup (GstRTSPSessionPool *pool);
GST_RTSP_SERVER_API
GSource * gst_rtsp_session_pool_create_watch (GstRTSPSessionPool *pool);
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstRTSPSessionPool, gst_object_unref)
#endif
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G_END_DECLS
#endif /* __GST_RTSP_SESSION_POOL_H__ */