28100cb388
BUG=N/A TBR=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/29829004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7472 4adac7df-926f-26a2-2b94-8c16560cd09d
141 lines
5.4 KiB
C++
141 lines
5.4 KiB
C++
/*
|
|
* libjingle
|
|
* Copyright 2004--2006, 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_SESSION_TUNNEL_PSEUDOTCPCHANNEL_H_
|
|
#define TALK_SESSION_TUNNEL_PSEUDOTCPCHANNEL_H_
|
|
|
|
#include "talk/p2p/base/pseudotcp.h"
|
|
#include "talk/p2p/base/session.h"
|
|
#include "webrtc/base/criticalsection.h"
|
|
#include "webrtc/base/messagequeue.h"
|
|
#include "webrtc/base/stream.h"
|
|
|
|
namespace rtc {
|
|
class Thread;
|
|
}
|
|
|
|
namespace cricket {
|
|
|
|
class Candidate;
|
|
class TransportChannel;
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// PseudoTcpChannel
|
|
// Note: The PseudoTcpChannel must persist until both of:
|
|
// 1) The StreamInterface provided via GetStream has been closed.
|
|
// This is tracked via non-null stream_.
|
|
// 2) The PseudoTcp session has completed.
|
|
// This is tracked via non-null worker_thread_. When PseudoTcp is done,
|
|
// the TransportChannel is signalled to tear-down. Once the channel is
|
|
// torn down, the worker thread is purged.
|
|
// These indicators are checked by CheckDestroy, invoked whenever one of them
|
|
// changes.
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// PseudoTcpChannel::GetStream
|
|
// Note: The stream pointer returned by GetStream is owned by the caller.
|
|
// They can close & immediately delete the stream while PseudoTcpChannel still
|
|
// has cleanup work to do. They can also close the stream but not delete it
|
|
// until long after PseudoTcpChannel has finished. We must cope with both.
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
class PseudoTcpChannel
|
|
: public IPseudoTcpNotify,
|
|
public rtc::MessageHandler,
|
|
public sigslot::has_slots<> {
|
|
public:
|
|
// Signal thread methods
|
|
PseudoTcpChannel(rtc::Thread* stream_thread,
|
|
Session* session);
|
|
|
|
bool Connect(const std::string& content_name,
|
|
const std::string& channel_name,
|
|
int component);
|
|
rtc::StreamInterface* GetStream();
|
|
|
|
sigslot::signal1<PseudoTcpChannel*> SignalChannelClosed;
|
|
|
|
// Call this when the Session used to create this channel is being torn
|
|
// down, to ensure that things get cleaned up properly.
|
|
void OnSessionTerminate(Session* session);
|
|
|
|
// See the PseudoTcp class for available options.
|
|
void GetOption(PseudoTcp::Option opt, int* value);
|
|
void SetOption(PseudoTcp::Option opt, int value);
|
|
|
|
private:
|
|
class InternalStream;
|
|
friend class InternalStream;
|
|
|
|
virtual ~PseudoTcpChannel();
|
|
|
|
// Stream thread methods
|
|
rtc::StreamState GetState() const;
|
|
rtc::StreamResult Read(void* buffer, size_t buffer_len,
|
|
size_t* read, int* error);
|
|
rtc::StreamResult Write(const void* data, size_t data_len,
|
|
size_t* written, int* error);
|
|
void Close();
|
|
|
|
// Multi-thread methods
|
|
void OnMessage(rtc::Message* pmsg);
|
|
void AdjustClock(bool clear = true);
|
|
void CheckDestroy();
|
|
|
|
// Signal thread methods
|
|
void OnChannelDestroyed(TransportChannel* channel);
|
|
|
|
// Worker thread methods
|
|
void OnChannelWritableState(TransportChannel* channel);
|
|
void OnChannelRead(TransportChannel* channel, const char* data, size_t size,
|
|
const rtc::PacketTime& packet_time, int flags);
|
|
void OnChannelConnectionChanged(TransportChannel* channel,
|
|
const Candidate& candidate);
|
|
|
|
virtual void OnTcpOpen(PseudoTcp* ptcp);
|
|
virtual void OnTcpReadable(PseudoTcp* ptcp);
|
|
virtual void OnTcpWriteable(PseudoTcp* ptcp);
|
|
virtual void OnTcpClosed(PseudoTcp* ptcp, uint32 nError);
|
|
virtual IPseudoTcpNotify::WriteResult TcpWritePacket(PseudoTcp* tcp,
|
|
const char* buffer,
|
|
size_t len);
|
|
|
|
rtc::Thread* signal_thread_, * worker_thread_, * stream_thread_;
|
|
Session* session_;
|
|
TransportChannel* channel_;
|
|
std::string content_name_;
|
|
std::string channel_name_;
|
|
PseudoTcp* tcp_;
|
|
InternalStream* stream_;
|
|
bool stream_readable_, pending_read_event_;
|
|
bool ready_to_connect_;
|
|
mutable rtc::CriticalSection cs_;
|
|
};
|
|
|
|
} // namespace cricket
|
|
|
|
#endif // TALK_SESSION_TUNNEL_PSEUDOTCPCHANNEL_H_
|