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89 lines
2.4 KiB
89 lines
2.4 KiB
/*
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* Copyright (C) 2010-2011 Raphael Coeffic
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*
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* This file is part of SEMS, a free SIP media server.
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*
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* SEMS is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version. This program is released under
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* the GPL with the additional exemption that compiling, linking,
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* and/or using OpenSSL is allowed.
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*
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* For a license to use the SEMS software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* SEMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/** @file AmOfferAnswer.h */
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#ifndef AmOfferAnswer_h
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#define AmOfferAnswer_h
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#include "AmSdp.h"
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#include "AmSipMsg.h"
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class AmSipDialog;
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class AmOfferAnswer
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{
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public:
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enum OAState {
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OA_None=0,
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OA_OfferRecved,
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OA_OfferSent,
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OA_Completed,
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__max_OA
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};
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private:
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OAState state;
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OAState saved_state;
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unsigned int cseq;
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AmSdp sdp_remote;
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AmSdp sdp_local;
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AmSipDialog* dlg;
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/** State maintenance */
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void saveState();
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int checkStateChange();
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/** SDP handling */
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int onRxSdp(unsigned int m_cseq, const AmMimeBody& body, const char** err_txt);
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int onTxSdp(unsigned int m_cseq, const AmMimeBody& body);
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int getSdpBody(string& sdp_body);
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public:
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/** Constructor */
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AmOfferAnswer(AmSipDialog* dlg);
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/** Accessors */
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OAState getState();
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void setState(OAState n_st);
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const AmSdp& getLocalSdp();
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const AmSdp& getRemoteSdp();
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void clear();
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void clearTransitionalState();
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/** Event handlers */
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int onRequestIn(const AmSipRequest& req);
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int onReplyIn(const AmSipReply& reply);
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int onRequestOut(AmSipRequest& req);
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int onReplyOut(AmSipReply& reply);
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int onRequestSent(const AmSipRequest& req);
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int onReplySent(const AmSipReply& reply);
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void onNoAck(unsigned int ack_cseq);
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};
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#endif
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