File content as of revision 1:4b33ffe61bfa:

/* IPInterface.h */
/*
Copyright (C) 2011 ARM Limited.

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

#ifndef IPINTERFACE_H_
#define IPINTERFACE_H_

#include "core/fwk.h"

/** Generic IP-based network interface
 *
 */
class IPInterface
{
public:
	IPInterface();
	virtual ~IPInterface();

	virtual int init() = 0; //Initialize interface; no connection should be performed at this stage
	virtual int connect() = 0; //Do connect the interface
	virtual int disconnect() = 0;
	//It is encouraged that the derived class implement a "setup(...)" function to configure the interface before the connection

	static IPInterface* getDefaultInterface(); //For use by TCP, UDP sockets library

	//WARN: Implementation will have to be more careful in case of multiple interfaces (or implement a routing protocol based on local IP addresses differentiation)
	void registerAsDefaultInterface(); //First come, first served
	void unregisterAsDefaultInterface(); //Must be called before inst is destroyed to avoid invalid ptr fault

private:
	static IPInterface* s_pDefaultInterface;
};

#endif /* IPINTERFACE_H_ */