<HTML> <!-- ex06.html,v 1.2 2000/06/04 22:02:08 brunsch Exp --> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Author" CONTENT="Ambreen Ilyas"> <META NAME="GENERATOR" CONTENT="Mozilla/4.05 [en] (X11; I; SunOS 5.5.1 sun4u) [Netscape]"> <TITLE>Example 6</TITLE> </HEAD> <BODY> <FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT> <BR><FONT COLOR="#CC0000">//// This example is from the ACE Programmers Guide.</FONT> <BR><FONT COLOR="#CC0000">//// Chapter: "The Acceptor/Connector" (Connection Initialization)</FONT> <BR><FONT COLOR="#CC0000">//// For details please see the guide at</FONT> <BR><FONT COLOR="#CC0000">//// http://www.cs.wustl.edu/~schmidt/ACE.html</FONT> <BR><FONT COLOR="#CC0000">//// AUTHOR: Umar Syyid (usyyid@hns.com)</FONT> <BR><FONT COLOR="#CC0000">//// and Ambreen Ilyas (ambreen@bitsmart.com)</FONT> <BR><FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT> <P><FONT COLOR="#CC0000">//Example 6</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Reactor.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Svc_Handler.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Acceptor.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Synch.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/SOCK_Acceptor.h"</FONT> <P>class MyServiceHandler; //forward declaration <BR>typedef ACE_Singleton<ACE_Reactor,ACE_Null_Mutex> Reactor; <BR>typedef ACE_Acceptor<MyServiceHandler,ACE_SOCK_ACCEPTOR> Acceptor; <P>class MyServiceHandler: <BR>public ACE_Svc_Handler<ACE_SOCK_STREAM,ACE_MT_SYNCH>{ <BR><FONT COLOR="#FF0000">// The two thread names are kept here</FONT> <BR>ACE_thread_t thread_names[2]; <P>public: <BR>int open(void*){ <BR> ACE_DEBUG((LM_DEBUG, "Acceptor: received new connection \n")); <BR> <BR> <FONT COLOR="#FF0000">//Register with the reactor to remember this handler..</FONT> <BR> Reactor::instance() ->register_handler(this,ACE_Event_Handler::READ_MASK); <BR> ACE_DEBUG((LM_DEBUG,"Acceptor: ThreadID:(%t) open\n")); <P><FONT COLOR="#CC0000"> //Create two new threads to create and send messages to the remote machine.</FONT> <BR> activate(THR_NEW_LWP, <BR> 2, <FONT COLOR="#FF0000">//2 new threads</FONT> <BR> 0, <FONT COLOR="#FF0000">//force active false, if already created dont try again.</FONT> <BR> ACE_DEFAULT_THREAD_PRIORITY,<FONT COLOR="#FF0000">//Use default thread priority</FONT> <BR> -1, <BR> this,<FONT COLOR="#FF0000">//Which ACE_Task object to create? In this case this one.</FONT> <BR> 0,<FONT COLOR="#FF0000">// dont care about thread handles used</FONT> <BR> 0,<FONT COLOR="#FF0000">// dont care about where stacks are created</FONT> <BR> 0,<FONT COLOR="#FF0000">//dont care about stack sizes</FONT> <BR> thread_names); <FONT COLOR="#FF0000">// keep identifiers in thread_names</FONT> <BR> <BR><FONT COLOR="#FF0000"> //keep the service handler registered with the acceptor.</FONT> <BR> return 0; <BR> } <P>void send_message1(void){ <BR> <FONT COLOR="#FF0000">//Send message type 1</FONT> <BR> ACE_DEBUG((LM_DEBUG,"(%t)Sending message >>")); <P> <FONT COLOR="#FF0000">//Send the data to the remote peer</FONT> <BR> ACE_DEBUG((LM_DEBUG,"Sent message1")); <BR> peer().send_n("Message1",LENGTH_MSG_1); <BR> } <FONT COLOR="#FF0000">//end send_message1</FONT> <P>int send_message2(void){ <BR> <FONT COLOR="#FF0000">//Send message type 1</FONT> <BR> ACE_DEBUG((LM_DEBUG,"(%t)Sending message >>")); <P> <FONT COLOR="#FF0000">//Send the data to the remote peer</FONT> <BR> ACE_DEBUG((LM_DEBUG,"Sent Message2")); <BR> peer().send_n("Message2",LENGTH_MSG_2); <BR> }<FONT COLOR="#FF0000">//end send_message_2</FONT> <BR> <BR>int svc(void){ <BR> ACE_DEBUG( (LM_DEBUG,?(%t) Svc thread \n?)); <BR> <BR> if(ACE_Thread::self()== thread_names[0]) <BR> while(1) send_message1(); <FONT COLOR="#FF0000">//send message 1s forever</FONT> <BR> else <BR> while(1) send_message2(); <FONT COLOR="#FF0000">//send message 2s forever</FONT> <BR> return 0; <FONT COLOR="#FF0000">// keep the compiler happy.</FONT> <BR>} <BR> <BR>int handle_input(ACE_HANDLE){ <BR> ACE_DEBUG((LM_DEBUG,?(%t) handle_input ::?)); <BR> char* data= new char[13]; <BR> <BR> <FONT COLOR="#FF0000">//Check if peer aborted the connection</FONT> <BR> if(peer().recv_n(data,12)==0){ <BR> ACE_OS::printf("Peer probably aborted connection\n"); <BR> return -1; <FONT COLOR="#FF0000">//de-register from the Reactor.</FONT> <BR> } <BR> <BR> <FONT COLOR="#FF0000">//Show what you got..</FONT> <BR> ACE_OS::printf("<< %s\n",data); <BR> <BR> <FONT COLOR="#FF0000">//keep yourself registered</FONT> <BR> return 0; <BR> <BR> } <BR>}; <P>int main(int argc, char* argv[]){ <BR> ACE_INET_Addr addr(10101); <BR> ACE_DEBUG((LM_DEBUG,"Thread: (%t) main\n")); <P> <FONT COLOR="#FF0000">//Prepare to accept connections</FONT> <BR> Acceptor myacceptor(addr,Reactor::instance()); <P><FONT COLOR="#FF0000"> // wait for something to happen.</FONT> <BR> while(1) <BR> Reactor::instance()->handle_events(); <BR> <BR> return 0; <BR>} <P> <A HREF="ex07.html">Next Example</A> </BODY> </HTML>