Example 6
Author: Ambreen Ilyas

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//// This example is from the ACE Programmers Guide.
//// Chapter: "IPC SAP" (Interprocess Communication Mechanisms in ACE).
//// For details please see the guide at
//// http://www.cs.wustl.edu/~schmidt/ACE.html
//// AUTHOR: Umar Syyid (usyyid@hns.com)
//// and Ambreen Ilyas (ambreen@bitsmart.com)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////

//Example 6
#define DEFAULT_MULTICAST_ADDR "224.9.9.2"
#define TIMEOUT 5
#include "ace/SOCK_Dgram_Mcast.h"
#include "ace/OS.h"

class Sender_Multicast{
public:
Sender_Multicast(int port):
local_addr_((u_short)0),dgram_(local_addr_),
multicast_addr_(port,DEFAULT_MULTICAST_ADDR){}

//Method which uses a simple datagram component to send data to the multicast group.
int send_to_multicast_group(){
//Convert the information we wish to send into network byte order
mcast_info= htons (1000);

// Send multicast
if(dgram_.send
(&mcast_info, sizeof (mcast_info), multicast_addr_)==-1)
return -1;

ACE_DEBUG ((LM_DEBUG,
"%s; Sent multicast to group. Number sent is %d.\n",
__FILE__,
mcast_info));
return 0;
}

private:
ACE_INET_Addr multicast_addr_;
ACE_INET_Addr local_addr_;
ACE_SOCK_Dgram dgram_;
int mcast_info;
};

int main(int argc, char*argv[]){
Sender_Multicast m(2000);
if(m.send_to_multicast_group()==-1) {
ACE_DEBUG((LM_ERROR,"Send to Multicast group failed \n"));
exit(-1);
}
else
ACE_DEBUG((LM_DEBUG,"Send to Multicast group succesful \n"));
}

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