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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 __ASYNCSOCKET_H__
#define __ASYNCSOCKET_H__
#include "talk/base/sigslot.h"
#include "talk/base/socket.h"
namespace cricket {
// Provides the ability to perform socket I/O asynchronously.
class AsyncSocket : public Socket, public sigslot::has_slots<> {
public:
virtual ~AsyncSocket() {}
sigslot::signal1<AsyncSocket*> SignalReadEvent; // ready to read
sigslot::signal1<AsyncSocket*> SignalWriteEvent; // ready to write
sigslot::signal1<AsyncSocket*> SignalConnectEvent; // connected
sigslot::signal2<AsyncSocket*,int> SignalCloseEvent; // closed
// TODO: error
};
class AsyncSocketAdapter : public AsyncSocket {
public:
AsyncSocketAdapter(Socket * socket) : socket_(socket) {
}
AsyncSocketAdapter(AsyncSocket * socket) : socket_(socket) {
socket->SignalConnectEvent.connect(this, &AsyncSocketAdapter::OnConnectEvent);
socket->SignalReadEvent.connect(this, &AsyncSocketAdapter::OnReadEvent);
socket->SignalWriteEvent.connect(this, &AsyncSocketAdapter::OnWriteEvent);
socket->SignalCloseEvent.connect(this, &AsyncSocketAdapter::OnCloseEvent);
}
virtual ~AsyncSocketAdapter() { delete socket_; }
virtual SocketAddress GetLocalAddress() const { return socket_->GetLocalAddress(); }
virtual SocketAddress GetRemoteAddress() const { return socket_->GetRemoteAddress(); }
virtual int Bind(const SocketAddress& addr) { return socket_->Bind(addr); }
virtual int Connect(const SocketAddress& addr) { return socket_->Connect(addr); }
virtual int Send(const void *pv, size_t cb) { return socket_->Send(pv, cb); }
virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr) { return socket_->SendTo(pv, cb, addr); }
virtual int Recv(void *pv, size_t cb) { return socket_->Recv(pv, cb); }
virtual int RecvFrom(void *pv, size_t cb, SocketAddress *paddr) { return socket_->RecvFrom(pv, cb, paddr); }
virtual int Listen(int backlog) { return socket_->Listen(backlog); }
virtual Socket *Accept(SocketAddress *paddr) { return socket_->Accept(paddr); }
virtual int Close() { return socket_->Close(); }
virtual int GetError() const { return socket_->GetError(); }
virtual void SetError(int error) { return socket_->SetError(error); }
virtual ConnState GetState() const { return socket_->GetState(); }
virtual int EstimateMTU(uint16* mtu) { return socket_->EstimateMTU(mtu); }
virtual int SetOption(Option opt, int value) { return socket_->SetOption(opt, value); }
protected:
virtual void OnConnectEvent(AsyncSocket * socket) { SignalConnectEvent(this); }
virtual void OnReadEvent(AsyncSocket * socket) { SignalReadEvent(this); }
virtual void OnWriteEvent(AsyncSocket * socket) { SignalWriteEvent(this); }
virtual void OnCloseEvent(AsyncSocket * socket, int err) { SignalCloseEvent(this, err); }
Socket * socket_;
};
} // namespace cricket
#endif // __ASYNCSOCKET_H__
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