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Adds support for a core attended transfer function plus adds some hiding of masquerades.

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The attended transfer API call can complete the attended transfer in a number of ways
depending on the current bridged states of the channels involved.

The hiding of masquerades is done in some bridging-related functions, such as the manager
Bridge action and the Bridge dialplan application. In addition, call pickup was edited
to "move" a channel rather than masquerade it.

Review: https://reviewboard.asterisk.org/r/2511

(closes issue ASTERISK-21334)
Reported by Matt Jordan

(closes issue Asterisk-21336)
Reported by Matt Jordan



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@389848 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2013-05-28 14:45:31 +00:00
parent 2d2a47fae3
commit fac3839e68
11 changed files with 1015 additions and 449 deletions
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51
include/asterisk/channel.h
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@@ -4229,4 +4229,55 @@ struct ast_channel *ast_channel_bridge_peer(struct ast_channel *chan);
*/
struct ast_bridge_channel *ast_channel_get_bridge_channel(struct ast_channel *chan);
/*!
* \since 12
* \brief Gain control of a channel in the system
*
* The intention of this function is to take a channel that currently
* is running in one thread and gain control of it in the current thread.
* This can be used to redirect a channel to a different place in the dialplan,
* for instance.
*
* \note This function is NOT intended to be used on bridged channels. If you
* need to control a bridged channel, you can set a callback to be called
* once the channel exits the bridge, and run your controlling logic in that
* callback
*
* XXX Put name of callback-setting function in above paragraph once it is written
*
* \note When this function returns successfully, the yankee channel is in a state where
* it cannot be used any further. Always use the returned channel instead.
*
* \note absolutely _NO_ channel locks should be held before calling this function.
*
* \param yankee The channel to gain control of
* \retval NULL Could not gain control of the channel
* \retval non-NULL The channel
*/
struct ast_channel *ast_channel_yank(struct ast_channel *yankee);
/*!
* \since 12
* \brief Move a channel from its current location to a new location
*
* The intention of this function is to have the destination channel
* take on the identity of the source channel.
*
* \note This function is NOT intended to be used on bridged channels. If you
* wish to move an unbridged channel into the place of a bridged channel, then
* use ast_bridge_join() or ast_bridge_impart(). If you wish to move a bridged
* channel into the place of another bridged channel, then use ast_bridge_move().
*
* \note When this function returns succesfully, the source channel is in a
* state where its continued use is unreliable.
*
* \note absolutely _NO_ channel locks should be held before calling this function.
*
* \param dest The place to move the source channel
* \param source The channel to move
* \retval 0 Success
* \retval non-zero Failure
*/
int ast_channel_move(struct ast_channel *dest, struct ast_channel *source);
#endif /* _ASTERISK_CHANNEL_H */