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channel: Fix issues in hangup scenarios caused by frame deferral

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ASTERISK-26343

Change-Id: I06dbf7366e26028251964143454a77d017bb61c8
This commit is contained in:
George Joseph
2016-11-14 17:45:01 -07:00
parent b745c326c2
commit 404596b790
3 changed files with 29 additions and 13 deletions
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13
include/asterisk/channel.h
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@@ -971,6 +971,11 @@ enum {
* frames should be deferred.
*/
AST_FLAG_DEFER_FRAMES = (1 << 28),
/*!
* The channel is currently deferring hangup frames
* in addition to other frame types.
*/
AST_FLAG_DEFER_HANGUP_FRAMES = (1 << 29),
};
/*! \brief ast_bridge_config flags */
@@ -4700,11 +4705,17 @@ struct ast_readq_list *ast_channel_deferred_readq(struct ast_channel *chan);
* drop important frames. This function can be called so that important frames
* will be deferred, rather than placed in the channel frame queue as normal.
*
* Hangups are an interesting frame type. Hangups will always be detectable by
* a reader when a channel is deferring frames. If the defer_hangups parameter
* is non-zero, then the hangup frame will also be duplicated and deferred, so
* that the next reader of the channel will get the hangup frame, too.
*
* \pre chan MUST be locked before calling
*
* \param chan The channel on which frames should be deferred
* \param defer_hangups Defer hangups in addition to other deferrable frames
*/
void ast_channel_start_defer_frames(struct ast_channel *chan);
void ast_channel_start_defer_frames(struct ast_channel *chan, int defer_hangups);
/*!
* \brief Stop deferring deferrable frames on this channel