kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-04 03:50:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

A simplistic router for stasis_message's.

Browse Source 
Often times, when subscribing to a topic, one wants to handle
different message types differently. While one could cascade if/else
statements through the subscription handler, it is much cleaner to
specify a different callback for each message type. The
stasis_message_router is here to help!

A stasis_message_router is constructed for a particular stasis_topic,
which is subscribes to. Call stasis_message_router_unsubscribe() to
cancel that subscription.

Once constructed, routes can be added using
stasis_message_router_add() (or stasis_message_router_set_default()
for any messages not handled by other routes). There may be only one
route per stasis_message_type. The route's callback is invoked just as
if it were a callback for a subscription; but it only gets called for
messages of the specified type.

(issue ASTERISK-20887)
Review: https://reviewboard.asterisk.org/r/2390/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@383242 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
David M. Lee
2013-03-15 17:35:16 +00:00
parent 641fc7ea54
commit 49e3489cac
6 changed files with 487 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
main/stasis.c
View File

@@ -46,7 +46,7 @@ static struct ast_threadpool *pool;
static struct stasis_message_type *__subscription_change_message_type;
/*! \private */
/*! \internal */
struct stasis_topic {
char *name;
/*! Variable length array of the subscribers (raw pointer to avoid cyclic references) */
@@ -86,7 +86,7 @@ struct stasis_topic *stasis_topic_create(const char *name)
}
topic->num_subscribers_max = INITIAL_SUBSCRIBERS_MAX;
topic->subscribers = ast_calloc(topic->num_subscribers_max, sizeof(topic->subscribers));
topic->subscribers = ast_calloc(topic->num_subscribers_max, sizeof(*topic->subscribers));
if (!topic->subscribers) {
return NULL;
}
@@ -100,7 +100,7 @@ const char *stasis_topic_name(const struct stasis_topic *topic)
return topic->name;
}
/*! \private */
/*! \internal */
struct stasis_subscription {
/*! Unique ID for this subscription */
char *uniqueid;
@@ -264,7 +264,7 @@ static int topic_add_subscription(struct stasis_topic *topic, struct stasis_subs
}
/*!
* \private
* \internal
* \brief Information needed to dispatch a message to a subscription
*/
struct dispatch {