anytun: signalController.h Source File

00001 /*
-00002  *  anytun
-00003  *
-00004  *  The secure anycast tunneling protocol (satp) defines a protocol used
-00005  *  for communication between any combination of unicast and anycast
-00006  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
-00007  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
-00008  *  ethernet, ip, arp ...). satp directly includes cryptography and
-00009  *  message authentication based on the methodes used by SRTP.  It is
-00010  *  intended to deliver a generic, scaleable and secure solution for
-00011  *  tunneling and relaying of packets of any protocol.
-00012  *
-00013  *
-00014  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
-00015  *
-00016  *  This program is free software; you can redistribute it and/or modify
-00017  *  it under the terms of the GNU General Public License version 2
-00018  *  as published by the Free Software Foundation.
-00019  *
-00020  *  This program is distributed in the hope that it will be useful,
-00021  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
-00022  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-00023  *  GNU General Public License for more details.
-00024  *
-00025  *  You should have received a copy of the GNU General Public License
-00026  *  along with this program (see the file COPYING included with this
-00027  *  distribution); if not, write to the Free Software Foundation, Inc.,
-00028  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-00029  */
-00030 
-00031 #ifndef _SIGNAL_CONTROLLER_H_
-00032 #define _SIGNAL_CONTROLLER_H_
-00033 
-00034 #include <csignal>
-00035 #include <map>
-00036 #include <queue>
-00037 
-00038 #include "threadUtils.hpp"
-00039 
-00040 class SignalHandler
-00041 {
-00042 public:
-00043   virtual ~SignalHandler() {}
-00044 
-00045   virtual int handle() { return 0; }
-00046 
-00047 protected:
-00048   SignalHandler(int s) : sigNum(s) {}
-00049 
-00050 private:
-00051   int sigNum;
-00052   friend class SignalController;
-00053 };
-00054 
-00055 class SigIntHandler : public SignalHandler
-00056 {
-00057 public:
-00058   SigIntHandler() : SignalHandler(SIGINT) {}
-00059   int handle();
-00060 };
-00061 
-00062 class SigQuitHandler : public SignalHandler
-00063 {
-00064 public:
-00065   SigQuitHandler() : SignalHandler(SIGQUIT) {}
-00066   int handle();
-00067 };
-00068 
-00069 class SigHupHandler : public SignalHandler
-00070 {
-00071 public:
-00072   SigHupHandler() : SignalHandler(SIGHUP) {}
-00073   int handle();
-00074 };
-00075 
-00076 class SigUsr1Handler : public SignalHandler
-00077 {
-00078 public:
-00079   SigUsr1Handler() : SignalHandler(SIGUSR1) {}
-00080   int handle();
-00081 };
-00082 
-00083 class SigUsr2Handler : public SignalHandler
-00084 {
-00085 public:
-00086   SigUsr2Handler() : SignalHandler(SIGUSR2) {}
-00087   int handle();
-00088 };
-00089 
-00090 class SigTermHandler : public SignalHandler
-00091 {
-00092 public:
-00093   SigTermHandler() : SignalHandler(SIGTERM) {}
-00094   int handle();
-00095 };
-00096 
-00097 class SignalController
-00098 {
-00099 public:
-00100   SignalController() {}
-00101   ~SignalController();
-00102   static void* handle(void* s);
-00103 
-00104   void init();
-00105   int run();
-00106 
-00107 private:
-00108   typedef std::map<int, SignalHandler*> HandlerMap;
-00109 
-00110   SignalController(const SignalController &s);
-00111   void operator=(const SignalController &s);
-00112   
-00113   std::queue<int> sigQueue;
-00114   Mutex sigQueueMutex;
-00115   Semaphore sigQueueSem;
-00116 
-00117   pthread_t thread;
-00118   HandlerMap handler;
-00119 };
-00120 
-00121 #endif
-