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Allow custom session pools to override the session id allocation algorithms

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Wim Taymans 2009-01-20 19:41:53 +01:00 committed by Wim Taymans
parent f00188b50e
commit a3522af4f8
2 changed files with 40 additions and 3 deletions
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32
gst/rtsp-server/rtsp-session-pool.c
View file

@ -23,6 +23,7 @@
static void gst_rtsp_session_pool_finalize (GObject * object);
static gchar * create_session_id (GstRTSPSessionPool *pool);
G_DEFINE_TYPE (GstRTSPSessionPool, gst_rtsp_session_pool, G_TYPE_OBJECT);
@ -34,6 +35,8 @@ gst_rtsp_session_pool_class_init (GstRTSPSessionPoolClass * klass)
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gst_rtsp_session_pool_finalize;
klass->create_session_id = create_session_id;
}
static void
@ -59,6 +62,8 @@ gst_rtsp_session_pool_finalize (GObject * object)
* gst_rtsp_session_pool_new:
*
* Create a new #GstRTSPSessionPool instance.
*
* Returns: A new #GstRTSPSessionPool. g_object_unref() after usage.
*/
GstRTSPSessionPool *
gst_rtsp_session_pool_new (void)
@ -98,7 +103,7 @@ gst_rtsp_session_pool_find (GstRTSPSessionPool *pool, const gchar *sessionid)
}
static gchar *
create_session_id (void)
create_session_id (GstRTSPSessionPool *pool)
{
gchar id[16];
gint i;
@ -122,14 +127,23 @@ GstRTSPSession *
gst_rtsp_session_pool_create (GstRTSPSessionPool *pool)
{
GstRTSPSession *result = NULL;
gchar *id;
GstRTSPSessionPoolClass *klass;
gchar *id = NULL;
g_return_val_if_fail (GST_IS_RTSP_SESSION_POOL (pool), NULL);
klass = GST_RTSP_SESSION_POOL_GET_CLASS (pool);
do {
/* start by creating a new random session id, we assume that this is random
* enough to not cause a collision, which we will check later */
id = create_session_id ();
if (klass->create_session_id)
id = klass->create_session_id (pool);
else
goto no_function;
if (id == NULL)
goto no_session;
g_mutex_lock (pool->lock);
/* check if the sessionid existed */
@ -151,6 +165,18 @@ gst_rtsp_session_pool_create (GstRTSPSessionPool *pool)
} while (result == NULL);
return result;
/* ERRORS */
no_function:
{
g_warning ("no create_session_id vmethod in GstRTSPSessionPool %p", pool);
return NULL;
}
no_session:
{
g_warning ("can't create session id with GstRTSPSessionPool %p", pool);
return NULL;
}
}
/**

11
gst/rtsp-server/rtsp-session-pool.h
View file

@ -41,6 +41,9 @@ typedef struct _GstRTSPSessionPoolClass GstRTSPSessionPoolClass;
/**
* GstRTSPSessionPool:
*
* @lock: locking the session hashtable
* @session: hashtable of sessions indexed by the session id.
*
* An object that keeps track of the active sessions.
*/
struct _GstRTSPSessionPool {
@ -50,8 +53,16 @@ struct _GstRTSPSessionPool {
GHashTable *sessions;
};
/**
* GstRTSPSessionPoolClass:
*
* @create_session_id: create a new random session id. Subclasses should not
* check if the session exists.
*/
struct _GstRTSPSessionPoolClass {
GObjectClass parent_class;
gchar * (*create_session_id) (GstRTSPSessionPool *pool);
};
GType gst_rtsp_session_pool_get_type (void);