/*! \brief Helper function that creates an outgoing channel and returns it immediately */
static struct ast_channel *dial_transfer(const struct ast_channel *caller, const char *exten, const char *context)
{
char destination[AST_MAX_EXTENSION+AST_MAX_CONTEXT+1] = "";
struct ast_channel *chan = NULL;
int cause;
/* Fill the variable with the extension and context we want to call */
snprintf(destination, sizeof(destination), "%s@%s", exten, context);
/* Now we request that chan_local prepare to call the destination */
if (!(chan = ast_request("Local", caller->nativeformats, caller, destination, &cause))) {
return NULL;
}
/* Before we actually dial out let's inherit the appropriate dialplan variables */
ast_channel_inherit_variables(caller, chan);
/* Since the above worked fine now we actually call it and return the channel */
if (ast_call(chan, destination, 0)) {
ast_hangup(chan);
return NULL;
}
return chan;
}
/*!
* \internal
* \brief Helper function that creates an outgoing channel and returns it immediately. This function is nearly
* identical to the dial_transfer function in bridge_basic.c, however it doesn't swap the
* local channel and the channel that instigated the park.
*/
static struct ast_channel *park_local_transfer(struct ast_channel *parker, const char *context, const char *exten, struct transfer_channel_data *parked_channel_data)
{
char destination[AST_MAX_EXTENSION + AST_MAX_CONTEXT + 1];
struct ast_channel *parkee;
struct ast_channel *parkee_side_2;
int cause;
/* Fill the variable with the extension and context we want to call */
snprintf(destination, sizeof(destination), "%s@%s", exten, context);
/* Now we request that chan_local prepare to call the destination */
parkee = ast_request("Local", ast_channel_nativeformats(parker), NULL, parker, destination,
&cause);
if (!parkee) {
return NULL;
}
/* Before we actually dial out let's inherit appropriate information. */
ast_channel_lock_both(parker, parkee);
ast_channel_req_accountcodes(parkee, parker, AST_CHANNEL_REQUESTOR_REPLACEMENT);
ast_connected_line_copy_from_caller(ast_channel_connected(parkee), ast_channel_caller(parker));
ast_channel_inherit_variables(parker, parkee);
ast_channel_datastore_inherit(parker, parkee);
ast_channel_unlock(parker);
parkee_side_2 = ast_local_get_peer(parkee);
ast_assert(parkee_side_2 != NULL);
ast_channel_unlock(parkee);
/* We need to have the parker subscribe to the new local channel before hand. */
if (create_parked_subscription_full(parker, ast_channel_uniqueid(parkee_side_2), 1, parked_channel_data)) {
ast_channel_unref(parkee_side_2);
ast_hangup(parkee);
return NULL;
}
ast_bridge_set_transfer_variables(parkee_side_2, ast_channel_name(parker), 0);
ast_channel_unref(parkee_side_2);
/* Since the above worked fine now we actually call it and return the channel */
if (ast_call(parkee, destination, 0)) {
ast_hangup(parkee);
return NULL;
}
return parkee;
}
