diff options
author | schmidt <douglascraigschmidt@users.noreply.github.com> | 1998-11-10 21:33:25 +0000 |
---|---|---|
committer | schmidt <douglascraigschmidt@users.noreply.github.com> | 1998-11-10 21:33:25 +0000 |
commit | 8957225d74555060d1a83a4c240f1e602cc82d4a (patch) | |
tree | fc8c311055b97bfa1b5d2efbbd68d8705481660d /docs/tutorials/Chap_6/ex07.html | |
parent | 922a655a3a371b2d749f59761843297c408a9d1a (diff) | |
download | ATCD-8957225d74555060d1a83a4c240f1e602cc82d4a.tar.gz |
.
Diffstat (limited to 'docs/tutorials/Chap_6/ex07.html')
-rw-r--r-- | docs/tutorials/Chap_6/ex07.html | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/docs/tutorials/Chap_6/ex07.html b/docs/tutorials/Chap_6/ex07.html new file mode 100644 index 00000000000..7ecf0e57bb3 --- /dev/null +++ b/docs/tutorials/Chap_6/ex07.html @@ -0,0 +1,173 @@ +<HTML> +<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 7</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 7</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> +<BR><FONT COLOR="#000099">#include </FONT><FONT COLOR="#006600">"ace/Thread.h"</FONT> +<BR><FONT COLOR="#000099">#define</FONT> <FONT COLOR="#663366">NETWORK_SPEED +3</FONT> +<BR>class MyServiceHandler;<FONT COLOR="#FF0000"> //forward declaration</FONT> +<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 message sender and creator threads are +handled 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")); + +<P><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</FONT> +<BR><FONT COLOR="#CC0000"> //remote machine.</FONT> +<BR> activate(THR_NEW_LWP, +<BR> 2, <FONT COLOR="#FF0000">//2 new threads</FONT> +<BR> 0, +<BR> ACE_DEFAULT_THREAD_PRIORITY, +<BR> -1, +<BR> this, +<BR> 0, +<BR> 0, +<BR> 0, +<BR> thread_names); <FONT COLOR="#FF0000">// identifiers in +thread_handles</FONT> +<BR> +<BR> <FONT COLOR="#FF0000">//keep the service handler registered with +the acceptor.</FONT> +<BR> return 0; +<BR> } + +<P>void send_message(void){ +<BR><FONT COLOR="#FF0000"> //Dequeue the message and send it off</FONT> +<BR> ACE_DEBUG((LM_DEBUG,"(%t)Sending message >>")); + +<P><FONT COLOR="#FF0000"> //dequeue the message from the message queue</FONT> +<BR> ACE_Message_Block *mb; +<BR> ACE_ASSERT(this->getq(mb)!=-1); +<BR> int length=mb->length(); +<BR> char *data =mb->rd_ptr(); + +<P> +<BR><FONT COLOR="#FF0000"> //Send the data to the remote peer</FONT> +<BR> ACE_DEBUG((LM_DEBUG,"%s \n",data,length)); +<BR> peer().send_n(data,length); + +<P> <FONT COLOR="#FF0000">//Simulate very SLOW network.</FONT> +<BR> ACE_OS::sleep(NETWORK_SPEED); + +<P><FONT COLOR="#FF0000"> //release the message block</FONT> +<BR> mb->release(); +<BR> } <FONT COLOR="#FF0000">//end send_message</FONT> + +<P>int construct_message(void){ +<BR><FONT COLOR="#FF0000"> // A very fast message creation algorithm</FONT> +<BR><FONT COLOR="#FF0000"> // would lead to the need for queuing messages..</FONT> +<BR><FONT COLOR="#FF0000"> // here. These messages are created and +then sent</FONT> +<BR><FONT COLOR="#FF0000"> // using the SLOW send_message() routine +which is</FONT> +<BR><FONT COLOR="#FF0000"> // running in a different thread so that +the message</FONT> +<BR><FONT COLOR="#FF0000"> //construction thread isn?t blocked.</FONT> +<BR> ACE_DEBUG((LM_DEBUG,"(%t)Constructing message >> ")); + +<P> <FONT COLOR="#FF0000">// Create a new message to send</FONT> +<BR> ACE_Message_Block *mb; +<BR> char *data="Hello Connector"; +<BR> ACE_NEW_RETURN (mb,ACE_Message_Block (16,<FONT COLOR="#FF0000">//Message +16 bytes long</FONT> +<BR> ACE_Message_Block::MB_DATA,<FONT COLOR="#FF0000">//Set +header to data</FONT> +<BR> 0,<FONT COLOR="#FF0000">//No continuations</FONT>. +<BR> data<FONT COLOR="#FF0000">//The data we want to send</FONT> +<BR> ), 0); +<BR> mb->wr_ptr(16); <FONT COLOR="#FF0000">//Set the write pointer.</FONT> +<BR> +<BR> <FONT COLOR="#FF0000">// Enqueue the message into the message +queue</FONT> +<BR><FONT COLOR="#FF0000"> // we COULD have done a timed wait for +enqueuing in case</FONT> +<BR><FONT COLOR="#FF0000"> // someone else holds the lock to the queue +so it doesn?t block</FONT> +<BR><FONT COLOR="#FF0000"> //forever..</FONT> +<BR> ACE_ASSERT(this->putq(mb)!=-1); +<BR> ACE_DEBUG((LM_DEBUG,"Enqueued msg successfully\n")); +<BR>} +<BR> +<BR>int svc(void){ +<BR> ACE_DEBUG( (LM_DEBUG,?(%t) Svc thread \n?)); +<BR> +<BR><FONT COLOR="#FF0000"> //call the message creator thread</FONT> +<BR> if(ACE_Thread::self()== thread_names[0]) +<BR> while(1) construct_message(); <FONT COLOR="#FF0000">//create +messages forever</FONT> +<BR> else +<BR> while(1) send_message(); <FONT COLOR="#FF0000">//send messages +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"); +<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="ex08.html">Next Example</A> +</BODY> +</HTML> |