269fb4bc90
Create a copy of talk/xmpp and talk/p2p under webrtc/libjingle/xmpp and webrtc/p2p. Also makes libjingle use those version instead of the one in the talk folder. BUG=3379 Review URL: https://webrtc-codereview.appspot.com/26999004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7549 4adac7df-926f-26a2-2b94-8c16560cd09d
183 lines
7.1 KiB
C++
183 lines
7.1 KiB
C++
/*
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* libjingle
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* Copyright 2004--2008, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __TUNNELSESSIONCLIENT_H__
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#define __TUNNELSESSIONCLIENT_H__
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#include <vector>
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#include "webrtc/p2p/base/constants.h"
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#include "webrtc/p2p/base/pseudotcp.h"
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#include "webrtc/p2p/base/session.h"
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#include "webrtc/p2p/base/sessionclient.h"
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#include "webrtc/p2p/base/sessiondescription.h"
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#include "webrtc/p2p/base/sessionmanager.h"
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#include "webrtc/libjingle/xmllite/qname.h"
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#include "webrtc/libjingle/xmpp/constants.h"
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/stream.h"
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namespace cricket {
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class TunnelSession;
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class TunnelStream;
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enum TunnelSessionRole { INITIATOR, RESPONDER };
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///////////////////////////////////////////////////////////////////////////////
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// TunnelSessionClient
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///////////////////////////////////////////////////////////////////////////////
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// Base class is still abstract
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class TunnelSessionClientBase
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: public SessionClient, public rtc::MessageHandler {
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public:
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TunnelSessionClientBase(const buzz::Jid& jid, SessionManager* manager,
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const std::string &ns);
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virtual ~TunnelSessionClientBase();
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const buzz::Jid& jid() const { return jid_; }
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SessionManager* session_manager() const { return session_manager_; }
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void OnSessionCreate(Session* session, bool received);
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void OnSessionDestroy(Session* session);
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// This can be called on any thread. The stream interface is
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// thread-safe, but notifications must be registered on the creating
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// thread.
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rtc::StreamInterface* CreateTunnel(const buzz::Jid& to,
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const std::string& description);
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rtc::StreamInterface* AcceptTunnel(Session* session);
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void DeclineTunnel(Session* session);
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// Invoked on an incoming tunnel
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virtual void OnIncomingTunnel(const buzz::Jid &jid, Session *session) = 0;
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// Invoked on an outgoing session request
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virtual SessionDescription* CreateOffer(
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const buzz::Jid &jid, const std::string &description) = 0;
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// Invoked on a session request accept to create
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// the local-side session description
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virtual SessionDescription* CreateAnswer(
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const SessionDescription* offer) = 0;
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protected:
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void OnMessage(rtc::Message* pmsg);
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// helper method to instantiate TunnelSession. By overriding this,
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// subclasses of TunnelSessionClient are able to instantiate
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// subclasses of TunnelSession instead.
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virtual TunnelSession* MakeTunnelSession(Session* session,
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rtc::Thread* stream_thread,
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TunnelSessionRole role);
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buzz::Jid jid_;
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SessionManager* session_manager_;
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std::vector<TunnelSession*> sessions_;
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std::string namespace_;
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bool shutdown_;
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};
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class TunnelSessionClient
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: public TunnelSessionClientBase, public sigslot::has_slots<> {
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public:
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TunnelSessionClient(const buzz::Jid& jid, SessionManager* manager);
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TunnelSessionClient(const buzz::Jid& jid, SessionManager* manager,
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const std::string &ns);
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virtual ~TunnelSessionClient();
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virtual bool ParseContent(SignalingProtocol protocol,
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const buzz::XmlElement* elem,
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ContentDescription** content,
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ParseError* error);
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virtual bool WriteContent(SignalingProtocol protocol,
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const ContentDescription* content,
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buzz::XmlElement** elem,
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WriteError* error);
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// Signal arguments are this, initiator, description, session
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sigslot::signal4<TunnelSessionClient*, buzz::Jid, std::string, Session*>
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SignalIncomingTunnel;
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virtual void OnIncomingTunnel(const buzz::Jid &jid,
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Session *session);
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virtual SessionDescription* CreateOffer(
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const buzz::Jid &jid, const std::string &description);
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virtual SessionDescription* CreateAnswer(
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const SessionDescription* offer);
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};
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///////////////////////////////////////////////////////////////////////////////
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// TunnelSession
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// Note: The lifetime of TunnelSession is complicated. It needs to survive
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// until the following three conditions are true:
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// 1) TunnelStream has called Close (tracked via non-null stream_)
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// 2) PseudoTcp has completed (tracked via non-null tcp_)
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// 3) Session has been destroyed (tracked via non-null session_)
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// This is accomplished by calling CheckDestroy after these indicators change.
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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// TunnelStream
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// Note: Because TunnelStream provides a stream interface, its lifetime is
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// controlled by the owner of the stream pointer. As a result, we must support
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// both the TunnelSession disappearing before TunnelStream, and vice versa.
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///////////////////////////////////////////////////////////////////////////////
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class PseudoTcpChannel;
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class TunnelSession : public sigslot::has_slots<> {
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public:
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// Signalling thread methods
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TunnelSession(TunnelSessionClientBase* client, Session* session,
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rtc::Thread* stream_thread);
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virtual rtc::StreamInterface* GetStream();
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bool HasSession(Session* session);
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Session* ReleaseSession(bool channel_exists);
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protected:
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virtual ~TunnelSession();
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virtual void OnSessionState(BaseSession* session, BaseSession::State state);
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virtual void OnInitiate();
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virtual void OnAccept();
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virtual void OnTerminate();
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virtual void OnChannelClosed(PseudoTcpChannel* channel);
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TunnelSessionClientBase* client_;
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Session* session_;
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PseudoTcpChannel* channel_;
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};
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///////////////////////////////////////////////////////////////////////////////
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} // namespace cricket
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#endif // __TUNNELSESSIONCLIENT_H__
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