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/*
* 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 _SOCKETMANAGER_H_
#define _SOCKETMANAGER_H_
#include "talk/base/criticalsection.h"
#include "talk/base/messagequeue.h"
#include "talk/base/sigslot.h"
#include "talk/p2p/base/sessionmanager.h"
#include "talk/p2p/base/candidate.h"
#include "talk/p2p/base/p2psocket.h"
#include "talk/p2p/base/socketmanager.h"
#include <string>
#include <vector>
namespace cricket {
class SessionManager;
// Manages P2PSocket creation/destruction/readiness.
// Provides thread separation between session and sockets.
// This allows session to execute on the signaling thread,
// and sockets to execute on the worker thread, if desired,
// which is good for some media types (audio/video for example).
class SocketManager : public MessageHandler, public sigslot::has_slots<> {
public:
SocketManager(SessionManager *session_manager);
virtual ~SocketManager();
// Determines whether any of the created sockets are currently writable.
bool writable() { return writable_; }
P2PSocket *CreateSocket(const std::string & name);
void DestroySocket(P2PSocket *socket);
// Start discovering local candidates
void StartProcessingCandidates();
// Adds the given candidates that were sent by the remote side.
void AddRemoteCandidates(const std::vector<Candidate>& candidates);
// signaling channel is up, ready to transmit candidates as they are discovered
void OnSignalingReady();
// Put all of the sockets back into the initial state.
void ResetSockets();
sigslot::signal1<const std::vector<Candidate>&> SignalCandidatesReady;
sigslot::signal0<> SignalNetworkError;
sigslot::signal0<> SignalState;
sigslot::signal0<> SignalRequestSignaling;
private:
P2PSocket *CreateSocket_w(const std::string &name);
void DestroySocket_w(P2PSocket *socket);
void OnSignalingReady_w();
void AddRemoteCandidates_w(const std::vector<Candidate> &candidates);
virtual void OnMessage(Message *message);
void OnCandidatesReady(P2PSocket *socket, const std::vector<Candidate>&);
void OnSocketState(P2PSocket* socket, P2PSocket::State state);
void OnRequestSignaling(void);
void ResetSockets_w();
SessionManager *session_manager_;
std::vector<Candidate> candidates_;
CriticalSection critSM_;
std::vector<P2PSocket *> sockets_;
bool candidates_requested_;
bool writable_;
};
}
#endif // _SOCKETMANAGER_H_
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