webrtc/talk/p2p/base/rawtransport.h

82 lines
3.4 KiB
C++

/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_P2P_BASE_RAWTRANSPORT_H_
#define TALK_P2P_BASE_RAWTRANSPORT_H_
#include <string>
#include "talk/p2p/base/transport.h"
#if defined(FEATURE_ENABLE_PSTN)
namespace cricket {
// Implements a transport that only sends raw packets, no STUN. As a result,
// it cannot do pings to determine connectivity, so it only uses a single port
// that it thinks will work.
class RawTransport : public Transport, public TransportParser {
public:
RawTransport(rtc::Thread* signaling_thread,
rtc::Thread* worker_thread,
const std::string& content_name,
PortAllocator* allocator);
virtual ~RawTransport();
virtual bool ParseCandidates(SignalingProtocol protocol,
const buzz::XmlElement* elem,
const CandidateTranslator* translator,
Candidates* candidates,
ParseError* error);
virtual bool WriteCandidates(SignalingProtocol protocol,
const Candidates& candidates,
const CandidateTranslator* translator,
XmlElements* candidate_elems,
WriteError* error);
protected:
// Creates and destroys raw channels.
virtual TransportChannelImpl* CreateTransportChannel(int component);
virtual void DestroyTransportChannel(TransportChannelImpl* channel);
private:
// Parses the given element, which should describe the address to use for a
// given channel. This will return false and signal an error if the address
// or channel name is bad.
bool ParseRawAddress(const buzz::XmlElement* elem,
rtc::SocketAddress* addr,
ParseError* error);
friend class RawTransportChannel; // For ParseAddress.
DISALLOW_EVIL_CONSTRUCTORS(RawTransport);
};
} // namespace cricket
#endif // defined(FEATURE_ENABLE_PSTN)
#endif // TALK_P2P_BASE_RAWTRANSPORT_H_