SignalHandler.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_SIGNAL_HANDLER_HXX)
- #define VOCAL_SIGNAL_HANDLER_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 $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const SignalHandler_hxx_Version =
- "$Id: SignalHandler.hxx,v 1.3 2001/06/29 03:42:30 bko Exp $";
- #include "NonCopyable.hxx"
- #include "SignalSet.hxx"
- #include "SignalAction.hxx"
- #include "VThread.hxx"
- #include <csignal>
- #include <map>
- /** Infrastructure common to VOCAL.
- */
- namespace Vocal
- {
- /** Infrastructure common to VOCAL to handle signals.
- */
- namespace Signals
- {
- /** Support for unix type signals in a mutlithreaded or single threaded
- * environment.<br><br>
- *
- * @see Vocal::Signals::SignalAction
- * @see Vocal::Signals::SignalSet
- * @see Vocal::Application
- * @see Vocal::Threads::Thread
- */
- class SignalHandler : public Vocal::NonCopyable
- {
- public:
- /** Global initialization. Should be called in Application::init().
- */
- static void init();
- /** Global uninitialization. Should be called in Application::unit().
- */
- static void uninit();
-
- /** Only one signal handler per thread can be created.
- * It needs to be created in the context of the thread.
- */
- SignalHandler();
-
- /** Virtual destructor.
- */
- virtual ~SignalHandler();
- /** Adds an action to be handled for this thread.
- */
- void add(SignalAction &);
-
- /** Removes an action to be handled for this thread.
- */
- void remove(SignalAction &);
- /** Sets the blocked signals for this thread.
- */
- void setBlocked(const SignalSet &);
- /** Adds the signals to those blocked for this thread.
- */
- void block(const SignalSet &);
- /** Removes the signals from those blocked for this thread.
- */
- void unblock(const SignalSet &);
- /** Sets the blocked signals for this process.
- */
- static void setGlobalBlocked(const SignalSet &);
- /** Adds the signals to those blocked for this process.
- */
- static void globalBlock(const SignalSet &);
- /** Removes the signals from those blocked for this process.
- */
- static void globalUnblock(const SignalSet &);
- /** The actual signal handling routine.
- */
- static void signalHandler(int, siginfo_t *, void *);
- private:
- typedef map<int, size_t> SignalActionRefCountMap;
- typedef map<int, SignalAction *> SignalActionMap;
- typedef map<vthread_t, SignalActionMap *> ThreadSignalMap;
- static SignalActionRefCountMap myActionRefCountMap;
- static ThreadSignalMap myThreadSignalMap;
- };
- } // namespace Signals
- } // namespace Vocal
- #include "DeprecatedSignalHandler.hxx"
- #endif // !defined(VOCAL_SIGNAL_HANDLER_HXX)