// Supplier_Router.cpp,v 4.10 2004/01/05 22:57:06 shuston Exp #include "ace/os_include/os_assert.h" #include "ace/OS_NS_stdio.h" #include "ace/OS_NS_string.h" #include "Supplier_Router.h" #include "Options.h" ACE_RCSID(Event_Server, Supplier_Router, "Supplier_Router.cpp,v 4.10 2004/01/05 22:57:06 shuston Exp") // Handle outgoing messages in a separate thread. int Supplier_Router::svc (void) { assert (this->is_writer ()); ACE_DEBUG ((LM_DEBUG, "(%t) starting svc in Supplier_Router\n")); for (ACE_Message_Block *mb = 0; this->getq (mb) >= 0; ) { ACE_DEBUG ((LM_DEBUG, "(%t) warning: Supplier_Router is " "forwarding a message via send_peers\n")); // Broadcast the message to the Suppliers, even though this is // "incorrect" (assuming a oneway flow of events from Suppliers // to Consumers)! if (this->context ()->send_peers (mb) == -1) ACE_ERROR_RETURN ((LM_ERROR, "(%t) send_peers failed in Supplier_Router\n"), -1); } ACE_DEBUG ((LM_DEBUG, "(%t) stopping svc in Supplier_Router\n")); return 0; } Supplier_Router::Supplier_Router (Peer_Router_Context *prc) : Peer_Router (prc) { // Increment the reference count. this->context ()->duplicate (); } // Initialize the Supplier Router. int Supplier_Router::open (void *) { if (this->is_reader ()) { // Set the <Peer_Router_Context> to point back to us so that all // the Peer_Handler's <put> their incoming <Message_Blocks> to // our reader Task. this->context ()->peer_router (this); return 0; } else // if (this->is_writer () { // Increment the reference count. this->context ()->duplicate (); // Make this an active object to handle the error cases in a // separate thread. return this->activate (Options::instance ()->t_flags ()); } } // Close down the router. int Supplier_Router::close (u_long) { ACE_DEBUG ((LM_DEBUG, "(%t) closing Supplier_Router %s\n", this->is_reader () ? "reader" : "writer")); if (this->is_writer ()) // Inform the thread to shut down. this->msg_queue ()->deactivate (); // Both writer and reader call release(), so the context knows when // to clean itself up. this->context ()->release (); return 0; } // Send an <ACE_Message_Block> to the supplier(s). int Supplier_Router::put (ACE_Message_Block *mb, ACE_Time_Value *) { // Perform the necessary control operations before passing // the message up the stream. if (mb->msg_type () == ACE_Message_Block::MB_IOCTL) { this->control (mb); return this->put_next (mb); } // If we're the reader then we are responsible for pass messages up // to the next Module's reader Task. Note that in a "real" // application this is likely where we'd take a look a the actual // information that was in the message, e.g., in order to figure out // what operation it was and what it's "parameters" where, etc. else if (this->is_reader ()) return this->put_next (mb); else // if (this->is_writer ()) { // Someone is trying to write to the Supplier. In this // implementation this is considered an "error." However, we'll // just go ahead and forward the message to the Supplier (who // hopefully is prepared to receive it). ACE_DEBUG ((LM_WARNING, "(%t) warning: sending to a Supplier\n")); // Queue up the message to processed by <Supplier_Router::svc>. // Since we don't expect to be getting many of these messages, // we queue them up and run them in a separate thread to avoid // taxing the main thread. return this->putq (mb); } } // Return information about the <Supplier_Router>. int Supplier_Router::info (char **strp, size_t length) const { char buf[BUFSIZ]; ACE_INET_Addr addr; const char *mod_name = this->name (); if (this->context ()->acceptor ().get_local_addr (addr) == -1) return -1; ACE_OS::sprintf (buf, "%s\t %d/%s %s (%s)\n", mod_name, addr.get_port_number (), "tcp", "# supplier router", this->is_reader () ? "reader" : "writer"); if (*strp == 0 && (*strp = ACE_OS::strdup (mod_name)) == 0) return -1; else ACE_OS::strncpy (*strp, mod_name, length); return ACE_OS::strlen (mod_name); }