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Handle DTMF and hold wrapup when a channel leaves the bridging system.

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DTMF start/end and hold/unhold events have state because a DTMF begin
event and hold event must be ended by something.

The following cases need to be handled when a channel is moved around in
the system.

* When a channel leaves a bridge it may owe a DTMF end event to the
bridge.

* When a channel leaves a bridge it may owe an UNHOLD event to the bridge.
(This case is explicitly ignored because things like transfers need
explicit control over this.)

* When a channel leaves the bridging system it may need to simulate a DTMF
end event to the channel.

* When a channel leaves the bridging system it may need to simulate an
UNHOLD event to the channel.

The patch also fixes the following:
* Fixes playing a file and restarting MOH using the latest MOH class used.

(closes issue ASTERISK-22043)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/2791/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397577 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2013-08-23 18:33:36 +00:00
parent 31ab486627
commit 6ebfac8e70
9 changed files with 139 additions and 32 deletions
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14
include/asterisk/bridge_channel_internal.h
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@@ -82,6 +82,20 @@ enum bridge_channel_action_type {
*/
struct ast_bridge_channel *bridge_channel_internal_alloc(struct ast_bridge *bridge);
/*!
* \internal
* \brief Clear owed events by the channel to the original bridge.
* \since 12.0.0
*
* \param orig_bridge Original bridge the channel was in before leaving.
* \param bridge_channel Channel that owes events to the original bridge.
*
* \note On entry, the orig_bridge is already locked.
*
* \return Nothing
*/
void bridge_channel_settle_owed_events(struct ast_bridge *orig_bridge, struct ast_bridge_channel *bridge_channel);
/*!
* \internal
* \brief Push the bridge channel into its specified bridge.