diff options
author | Benny Prijono <bennylp@teluu.com> | 2006-02-21 23:47:00 +0000 |
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committer | Benny Prijono <bennylp@teluu.com> | 2006-02-21 23:47:00 +0000 |
commit | fcba4d392ea03e8ac4cfde87d8efd7999ff4a38c (patch) | |
tree | 285e65a630c72b80dd533ec88d4d8ef9b1aa7029 /pjsip/include/pjsip-ua/sip_xfer.h | |
parent | 5c7386b0e38e69ae6b275b1048d59e7ec4eaf6bf (diff) |
Implemented major feature: call hold and transfer
git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@212 74dad513-b988-da41-8d7b-12977e46ad98
Diffstat (limited to 'pjsip/include/pjsip-ua/sip_xfer.h')
-rw-r--r-- | pjsip/include/pjsip-ua/sip_xfer.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/pjsip/include/pjsip-ua/sip_xfer.h b/pjsip/include/pjsip-ua/sip_xfer.h new file mode 100644 index 00000000..16eb1956 --- /dev/null +++ b/pjsip/include/pjsip-ua/sip_xfer.h @@ -0,0 +1,175 @@ +/* $Id$ */ +/* + * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef __PJSIP_XFER_H__ +#define __PJSIP_XFER_H__ + + + +/** + * @file sip_xfer.h + * @brief SIP Transfer (REFER, RFC 3515) + */ +#include <pjsip-simple/evsub.h> +#include <pjsip/sip_msg.h> + + + +PJ_BEGIN_DECL + + +/** + * Declaration for REFER method constant. + */ +extern const pjsip_method pjsip_refer_method; + + +/** + * Initialize the REFER subsystem. + * This currently does very little (only register REFER as supported method). + */ +PJ_DECL(pj_status_t) pjsip_xfer_init_module(pjsip_endpoint *endpt); + + + +/** + * Create transferer (sender of REFER request). + * + * @param dlg The underlying dialog to use. + * @param user_cb Pointer to callbacks to receive presence subscription + * events. + * @param p_evsub Pointer to receive the presence subscription + * session. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_create_uac( pjsip_dialog *dlg, + const pjsip_evsub_user *user_cb, + pjsip_evsub **p_evsub ); + + +/** + * Create transferee (receiver of REFER request). + * + * @param dlg The underlying dialog to use. + * @param user_cb Pointer to callbacks to receive presence subscription + * events. + * @param rdata The incoming SUBSCRIBE request that creates the event + * subscription. + * @param p_evsub Pointer to receive the presence subscription + * session. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_create_uas( pjsip_dialog *dlg, + const pjsip_evsub_user *user_cb, + pjsip_rx_data *rdata, + pjsip_evsub **p_evsub ); + +/** + * Call this function to create request to initiate REFER subscription, + * to refresh subscription, or to unsubscribe. For request other than + * the initial REFER request, "refer_to_uri" argument may be NULL. + * + * @param sub Client subscription instance. + * @param refer_to_uri URI to be put to the Refer-To header. This argument + * may be NULL for subsequent REFER requests. + * @param p_tdata Pointer to receive the request. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_initiate( pjsip_evsub *sub, + const pj_str_t *refer_to_uri, + pjsip_tx_data **p_tdata); + + +/** + * Accept the incoming REFER request by sending 2xx response. + * + * @param sub Server subscription instance. + * @param rdata The incoming subscription request message. + * @param st_code Status code, which MUST be 2xx. + * @param hdr_list Optional list of headers to be added in the response. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_accept( pjsip_evsub *sub, + pjsip_rx_data *rdata, + int st_code, + const pjsip_hdr *hdr_list ); + + +/** + * For notifier, create NOTIFY request to subscriber, and set the state + * of the subscription. + * + * @param sub The server subscription (notifier) instance. + * @param state New state to set. + * @param xfer_st_code The call status code to be reported with the NOTIFY + * request. + * @param xfer_st_text Optional call status text to be reported with the + * NOTIFY request. If the value is NULL, default + * status text will be used. + * @param p_tdata Pointer to receive the request. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_notify( pjsip_evsub *sub, + pjsip_evsub_state state, + int xfer_st_code, + const pj_str_t *xfer_st_text, + pjsip_tx_data **p_tdata); + + +/** + * Create NOTIFY request to reflect current subscription status. Application + * can only call this function after it has sent NOTIFY before. + * This will also re-send the last "message/sipfrag" body that was sent + * in the previous NOTIFY. + * + * @param sub Server subscription object. + * @param p_tdata Pointer to receive request. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_current_notify( pjsip_evsub *sub, + pjsip_tx_data **p_tdata ); + + + +/** + * Send request message that was previously created with initiate(), notify(), + * or current_notify(). Application may also send request created with other + * functions, e.g. authentication. But the request MUST be either request + * that creates/refresh subscription or NOTIFY request. + * + * + * @param sub The event subscription object. + * @param tdata Request message to be send. + * + * @return PJ_SUCCESS on success. + */ +PJ_DECL(pj_status_t) pjsip_xfer_send_request( pjsip_evsub *sub, + pjsip_tx_data *tdata); + + + +PJ_END_DECL + +#endif /* __PJSIP_XFER_H__ */ + |