OpenSceneGraph/examples/osgcluster/broadcaster.h

/* -*-c++-*- 
*  
*  OpenSceneGraph example, osgcluster.
*
*  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 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 __BROADCASTER_H
#define __BROADCASTER_H

#include <string>

////////////////////////////////////////////////////////////
// Broadcaster.h
//
// Class definition for broadcasting a buffer to a LAN
//

#if !defined(WIN32) || defined(__CYGWIN__)
    #include <netinet/in.h>
#endif

class Broadcaster  
{
    public :

	Broadcaster( void );
	~Broadcaster( void );

	// Set the broadcast port
	void setPort( const short port );

	// Set the buffer to be broadcast
	void setBuffer( void *buffer, const unsigned int buffer_size );

    // Set the IFRName i.e. eth0, will default to platform appropriate setting where possible.
    void setIFRName( const std::string& name );


	// Set a recipient host.  If this is used, the Broadcaster
	// no longer broadcasts, but rather directs UDP packets at
	// host.
	void setHost( const char *hostname ); 

	// Sync broadcasts the buffer
	void sync( void );

    private :
	bool init( void );

    private :

        std::string _ifr_name;

#if defined(WIN32) && !defined(__CYGWIN__)
        SOCKET _so;
#else
        int _so;
#endif
        bool _initialized;
        short _port;
        void *_buffer;
        unsigned int _buffer_size;
#if defined(WIN32) && !defined(__CYGWIN__)
        SOCKADDR_IN saddr;
#else
        struct sockaddr_in saddr;
#endif
        unsigned long _address;
};
#endif