PollFifoService.cxx
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上传日期:2013-07-25
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const PollFifoService_cxx_Version =
- "$Id: PollFifoService.cxx,v 1.2 2001/04/03 07:51:11 icahoon Exp $";
- #include "PollFifoService.hxx"
- #include "Protocol.hxx"
- #include "SystemException.hxx"
- #include "ProtocolException.hxx"
- #include "VLog.hxx"
- #include <cassert>
- using Vocal::Services::PollFifoService;
- using Vocal::Services::Event;
- using Vocal::Transport::Protocol;
- using Vocal::Transport::ProtocolException;
- using Vocal::Logging::VLog;
- using Vocal::SystemException;
- PollFifoService::PollFifoService(
- FifoBase< Sptr<Event> > & serviceMgrFifo,
- const char * name
- )
- : Service(serviceMgrFifo, (name ? name : "PollFifoService"))
- {
- }
- PollFifoService::~PollFifoService()
- {
- }
- FifoBase< Sptr<Event> > &
- PollFifoService::getFifo()
- {
- return ( myFifo );
- }
-
- const FifoBase< Sptr<Event> > &
- PollFifoService::getFifo() const
- {
- return ( myFifo );
- }
-
- void
- PollFifoService::registerProtocol(Protocol & protocol)
- {
- const string fn("PollFifoService::registerProtocol");
- VLog log(fn);
-
- myFifo.registerProtocol(protocol);
- }
- void
- PollFifoService::updateProtocol(Protocol & protocol)
- {
- const string fn("PollFifoService::updateProtocol");
- VLog log(fn);
-
- myFifo.updateProtocol(protocol);
- }
- void
- PollFifoService::unregisterProtocol(Protocol & protocol)
- {
- const string fn("Service::unregisterProtocol");
- VLog log(fn);
-
- myFifo.unregisterProtocol(protocol);
- }
- bool
- PollFifoService::onVException(VException & exception)
- {
- // See if we have a transport exception.
- //
- SystemException * systemException
- = dynamic_cast<SystemException *>(&exception);
-
- if ( systemException != 0 )
- {
- return ( onSystemException(*systemException) );
- }
- // See if we have a protocol exception.
- //
- ProtocolException * protocolException
- = dynamic_cast<ProtocolException *>(&exception);
- if ( protocolException != 0 )
- {
- return ( onProtocolException(*protocolException) );
- }
- // Do the default behavior.
- //
- return ( Service::onVException(exception) );
- }
- bool
- PollFifoService::onSystemException(SystemException & systemException)
- {
- const string fn("PollFifoService::onSystemException");
- VLog log(fn);
-
- VDEBUG(log) << fn << ": shutting down." << VDEBUG_END(log);
-
- hardShutdown(systemException.getError());
-
- return ( true );
- }
-
- bool
- PollFifoService::onProtocolException(ProtocolException & protocolException)
- {
- const string fn("PollFifoService::onProtocolException");
- VLog log(fn);
-
- VDEBUG(log) << fn << ": ignoring." << VDEBUG_END(log);
- return ( false );
- }
- bool
- PollFifoService::processMessages(int numberFdsActive)
- {
- const string fn("PollFifoService::processMessages");
- VLog log(fn);
-
- bool done = Service::processMessages(numberFdsActive);
-
- if ( !done )
- {
- processProtocols(numberFdsActive);
- }
- return ( done );
- }
- void
- PollFifoService::processProtocols(int numberFdsActive)
- {
- const string fn("PollFifoService::processProtocols");
- VLog log(fn);
- myFifo.processProtocols(numberFdsActive);
- }