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+/*
+ * anytun
+ *
+ * The secure anycast tunneling protocol (satp) defines a protocol used
+ * for communication between any combination of unicast and anycast
+ * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
+ * mode and allows tunneling of every ETHER TYPE protocol (e.g.
+ * ethernet, ip, arp ...). satp directly includes cryptography and
+ * message authentication based on the methodes used by SRTP. It is
+ * intended to deliver a generic, scaleable and secure solution for
+ * tunneling and relaying of packets of any protocol.
+ *
+ *
+ * Copyright (C) 2007 anytun.org <satp@wirdorange.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _SIGNAL_CONTROLLER_H_
+#define _SIGNAL_CONTROLLER_H_
+
+#include <csignal>
+#include <map>
+#include <queue>
+
+#include "threadUtils.hpp"
+
+class SignalHandler
+{
+public:
+ virtual ~SignalHandler() {}
+
+ virtual int handle() { return 0; }
+
+protected:
+ SignalHandler(int s) : sigNum(s) {}
+
+private:
+ int sigNum;
+ friend class SignalController;
+};
+
+class SigIntHandler : public SignalHandler
+{
+public:
+ SigIntHandler() : SignalHandler(SIGINT) {}
+ int handle();
+};
+
+class SigQuitHandler : public SignalHandler
+{
+public:
+ SigQuitHandler() : SignalHandler(SIGQUIT) {}
+ int handle();
+};
+
+class SigHupHandler : public SignalHandler
+{
+public:
+ SigHupHandler() : SignalHandler(SIGHUP) {}
+ int handle();
+};
+
+class SigUsr1Handler : public SignalHandler
+{
+public:
+ SigUsr1Handler() : SignalHandler(SIGUSR1) {}
+ int handle();
+};
+
+class SigUsr2Handler : public SignalHandler
+{
+public:
+ SigUsr2Handler() : SignalHandler(SIGUSR2) {}
+ int handle();
+};
+
+class SigTermHandler : public SignalHandler
+{
+public:
+ SigTermHandler() : SignalHandler(SIGTERM) {}
+ int handle();
+};
+
+class SignalController
+{
+public:
+ SignalController() {}
+ ~SignalController();
+ static void* handle(void* s);
+
+ void init();
+ int run();
+
+private:
+ typedef std::map<int, SignalHandler*> HandlerMap;
+
+ SignalController(const SignalController &s);
+ void operator=(const SignalController &s);
+
+ std::queue<int> sigQueue;
+ Mutex sigQueueMutex;
+ Semaphore sigQueueSem;
+
+ pthread_t thread;
+ HandlerMap handler;
+};
+
+#endif