d4e598d57a
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6799 4adac7df-926f-26a2-2b94-8c16560cd09d
129 lines
5.4 KiB
C++
129 lines
5.4 KiB
C++
/*
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* libjingle
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* Copyright 2004--2005, 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 TALK_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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#define TALK_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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#include <string>
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#include "talk/p2p/base/transport.h"
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#include "talk/p2p/base/transportchannel.h"
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namespace buzz { class XmlElement; }
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namespace cricket {
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class Candidate;
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// Base class for real implementations of TransportChannel. This includes some
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// methods called only by Transport, which do not need to be exposed to the
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// client.
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class TransportChannelImpl : public TransportChannel {
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public:
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explicit TransportChannelImpl(const std::string& content_name, int component)
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: TransportChannel(content_name, component) {}
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// Returns the transport that created this channel.
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virtual Transport* GetTransport() = 0;
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// For ICE channels.
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virtual IceRole GetIceRole() const = 0;
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virtual void SetIceRole(IceRole role) = 0;
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virtual void SetIceTiebreaker(uint64 tiebreaker) = 0;
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virtual size_t GetConnectionCount() const = 0;
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// To toggle G-ICE/ICE.
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virtual bool GetIceProtocolType(IceProtocolType* type) const = 0;
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virtual void SetIceProtocolType(IceProtocolType type) = 0;
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// SetIceCredentials only need to be implemented by the ICE
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// transport channels. Non-ICE transport channels can just ignore.
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// The ufrag and pwd should be set before the Connect() is called.
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virtual void SetIceCredentials(const std::string& ice_ufrag,
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const std::string& ice_pwd) = 0;
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// SetRemoteIceCredentials only need to be implemented by the ICE
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// transport channels. Non-ICE transport channels can just ignore.
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virtual void SetRemoteIceCredentials(const std::string& ice_ufrag,
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const std::string& ice_pwd) = 0;
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// SetRemoteIceMode must be implemented only by the ICE transport channels.
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virtual void SetRemoteIceMode(IceMode mode) = 0;
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// Begins the process of attempting to make a connection to the other client.
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virtual void Connect() = 0;
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// Resets this channel back to the initial state (i.e., not connecting).
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virtual void Reset() = 0;
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// Allows an individual channel to request signaling and be notified when it
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// is ready. This is useful if the individual named channels have need to
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// send their own transport-info stanzas.
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sigslot::signal1<TransportChannelImpl*> SignalRequestSignaling;
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virtual void OnSignalingReady() = 0;
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// Handles sending and receiving of candidates. The Transport
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// receives the candidates and may forward them to the relevant
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// channel.
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//
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// Note: Since candidates are delivered asynchronously to the
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// channel, they cannot return an error if the message is invalid.
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// It is assumed that the Transport will have checked validity
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// before forwarding.
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sigslot::signal2<TransportChannelImpl*,
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const Candidate&> SignalCandidateReady;
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virtual void OnCandidate(const Candidate& candidate) = 0;
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// DTLS methods
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// Set DTLS local identity. The identity object is not copied, but the caller
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// retains ownership and must delete it after this TransportChannelImpl is
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// destroyed.
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// TODO(bemasc): Fix the ownership semantics of this method.
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virtual bool SetLocalIdentity(rtc::SSLIdentity* identity) = 0;
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// Set DTLS Remote fingerprint. Must be after local identity set.
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virtual bool SetRemoteFingerprint(const std::string& digest_alg,
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const uint8* digest,
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size_t digest_len) = 0;
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virtual bool SetSslRole(rtc::SSLRole role) = 0;
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// TransportChannel is forwarding this signal from PortAllocatorSession.
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sigslot::signal1<TransportChannelImpl*> SignalCandidatesAllocationDone;
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// Invoked when there is conflict in the ICE role between local and remote
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// agents.
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sigslot::signal1<TransportChannelImpl*> SignalRoleConflict;
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// Emitted whenever the number of connections available to the transport
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// channel decreases.
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sigslot::signal1<TransportChannelImpl*> SignalConnectionRemoved;
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private:
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DISALLOW_EVIL_CONSTRUCTORS(TransportChannelImpl);
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};
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} // namespace cricket
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#endif // TALK_P2P_BASE_TRANSPORTCHANNELIMPL_H_
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