ServiceManager.hxx
上传用户:sy_wanhua
上传日期:2013-07-25
资源大小:3048k
文件大小:5k
- #if !defined(VOCAL_SERVICE_MANAGER_HXX)
- #define VOCAL_SERVICE_MANAGER_HXX
- /* ====================================================================
- * 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 $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const ServiceManager_hxx_Version =
- "$Id: ServiceManager.hxx,v 1.5 2001/05/24 11:01:38 icahoon Exp $";
- #include "NonCopyable.hxx"
- #include "FifoBase.h"
- #include "Event.hxx"
- #include "Sptr.hxx"
- #include <list>
- namespace Vocal {
- namespace Threads {
- class Thread;
- }
- namespace Signals {
- class SignalAction;
- }
- }
-
- /** Infrastructure common to VOCAL.
- */
- namespace Vocal
- {
- /** Infrastructure common to VOCAL to provide event based services.<br><br>
- */
- namespace Services
- {
- using Vocal::Threads::Thread;
- class Service;
- using Vocal::Signals::SignalAction;
- /**
- */
- class ServiceManager : public Vocal::NonCopyable
- {
- public:
- /** Create the service manager, given the fifo that the
- * will use.
- */
- ServiceManager(
- FifoBase< Sptr<Event> > & serviceMgrFifo,
- SignalAction * signalAction = 0
- );
-
- /** Virtual destructor
- */
- virtual ~ServiceManager();
- /** Request the service manager to manage the given service.
- */
- void manage(Service &);
- /** Request the service manager to unmanage all the services.
- */
- void unmanage();
- /** Starts all managed services. They are started serially, in the
- * order they were added to the manager.
- */
- virtual ReturnCode start();
- /** Blocks waiting for either a signal, or an error message from
- * a service indicating the process needs to terminate.
- */
- virtual ReturnCode run();
- /** Stops all managed services. They are stopped serially, in the
- * reverse order as from the order they were started.
- */
- virtual void stop();
- /** Shuts down all managed services. They are shutdown serially, in
- * the reverse order from the order they were started.
- */
- virtual void shutdown();
- private:
- void blockSignals();
- void unblockSignals();
- bool signalCaught();
-
- bool block();
-
- struct ServiceInfo
- {
- Service * service;
- Thread * thread;
- };
- typedef list<ServiceInfo> ServiceList;
- ServiceList myServiceList;
- FifoBase< Sptr<Event> > & myFifo;
- SignalAction * mySignalAction;
- };
- } // namespace Services
- } // namespace Vocal
- #endif // !defined(VOCAL_SERVICE_MANAGER_HXX)