Example 6
Author: Ambreen Ilyas

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//// This example is from the ACE Programmers Guide.
//// Chapter: "The Acceptor/Connector" (Connection Initialization)
//// 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
#include "ace/Reactor.h"
#include "ace/Svc_Handler.h"
#include "ace/Acceptor.h"
#include "ace/Synch.h"
#include "ace/SOCK_Acceptor.h"

class MyServiceHandler; //forward declaration
typedef ACE_Singleton<ACE_Reactor,ACE_Null_Mutex> Reactor;
typedef ACE_Acceptor<MyServiceHandler,ACE_SOCK_ACCEPTOR> Acceptor;

class MyServiceHandler:
public ACE_Svc_Handler<ACE_SOCK_STREAM,ACE_MT_SYNCH>{
// The two thread names are kept here
ACE_thread_t thread_names[2];

public:
int open(void*){
ACE_DEBUG((LM_DEBUG, "Acceptor: received new connection \n"));
//Register with the reactor to remember this handler..
Reactor::instance() ->register_handler(this,ACE_Event_Handler::READ_MASK);
ACE_DEBUG((LM_DEBUG,"Acceptor: ThreadID:(%t) open\n"));

//Create two new threads to create and send messages to the remote machine.
activate(THR_NEW_LWP,
2, //2 new threads
0, //force active false, if already created dont try again.
ACE_DEFAULT_THREAD_PRIORITY,//Use default thread priority
-1,
this,//Which ACE_Task object to create? In this case this one.
0,// dont care about thread handles used
0,// dont care about where stacks are created
0,//dont care about stack sizes
thread_names); // keep identifiers in thread_names
//keep the service handler registered with the acceptor.
return 0;
}

void send_message1(void){
//Send message type 1
ACE_DEBUG((LM_DEBUG,"(%t)Sending message >>"));

//Send the data to the remote peer
ACE_DEBUG((LM_DEBUG,"Sent message1"));
peer().send_n("Message1",LENGTH_MSG_1);
} //end send_message1

int send_message2(void){
//Send message type 1
ACE_DEBUG((LM_DEBUG,"(%t)Sending message >>"));

//Send the data to the remote peer
ACE_DEBUG((LM_DEBUG,"Sent Message2"));
peer().send_n("Message2",LENGTH_MSG_2);
}//end send_message_2
int svc(void){
ACE_DEBUG( (LM_DEBUG,?(%t) Svc thread \n?));
if(ACE_Thread::self()== thread_names[0])
while(1) send_message1(); //send message 1s forever
else
while(1) send_message2(); //send message 2s forever
return 0; // keep the compiler happy.
}
int handle_input(ACE_HANDLE){
ACE_DEBUG((LM_DEBUG,?(%t) handle_input ::?));
char* data= new char[13];
//Check if peer aborted the connection
if(peer().recv_n(data,12)==0){
ACE_OS::printf("Peer probably aborted connection\n");
return -1; //de-register from the Reactor.
}
//Show what you got..
ACE_OS::printf("<< %s\n",data);
//keep yourself registered
return 0;
}
};

int main(int argc, char* argv[]){
ACE_INET_Addr addr(10101);
ACE_DEBUG((LM_DEBUG,"Thread: (%t) main\n"));

//Prepare to accept connections
Acceptor myacceptor(addr,Reactor::instance());

// wait for something to happen.
while(1)
Reactor::instance()->handle_events();
return 0;
}

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