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+/* Copyright (C) 2003 MySQL AB
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+
+#ifndef SOCKET_SERVER_HPP
+#define SOCKET_SERVER_HPP
+
+#include <NdbTCP.h>
+#include <NdbMutex.h>
+#include <NdbThread.h>
+#include <Vector.hpp>
+
+extern "C" void* sessionThread_C(void*);
+extern "C" void* socketServerThread_C(void*);
+
+/**
+ * Socket Server
+ */
+class SocketServer {
+public:
+ /**
+ * A Session
+ */
+ class Session {
+ public:
+ virtual ~Session() {}
+ virtual void runSession(){}
+ virtual void stopSession(){ m_stop = true; }
+ protected:
+ friend class SocketServer;
+ friend void* sessionThread_C(void*);
+ Session(NDB_SOCKET_TYPE sock): m_socket(sock){ m_stop = m_stopped = false;}
+
+ bool m_stop; // Has the session been ordered to stop?
+ bool m_stopped; // Has the session stopped?
+
+ NDB_SOCKET_TYPE m_socket;
+ };
+
+ /**
+ * A service i.e. a session factory
+ */
+ class Service {
+ public:
+ virtual ~Service(){}
+
+ /**
+ * Returned Session will be ran in own thread
+ *
+ * To manage threads self, just return NULL
+ */
+ virtual Session * newSession(NDB_SOCKET_TYPE theSock) = 0;
+ virtual void stopSessions(){}
+ };
+
+ /**
+ * Constructor / Destructor
+ */
+ SocketServer(int maxSessions = 32);
+ ~SocketServer();
+
+ /**
+ * Setup socket and bind it
+ * then close the socket
+ * Returns true if succeding in binding
+ */
+ static bool tryBind(unsigned short port, const char * intface = 0);
+
+ /**
+ * Setup socket
+ * bind & listen
+ * Returns false if no success
+ */
+ bool setup(Service *, unsigned short *port, const char * pinterface = 0);
+
+ /**
+ * start/stop the server
+ */
+ void startServer();
+ void stopServer();
+
+ /**
+ * stop sessions
+ *
+ * Note: Implies stopServer
+ */
+ void stopSessions(bool wait = false);
+
+ void foreachSession(void (*f)(Session*, void*), void *data);
+
+private:
+ struct SessionInstance {
+ Service * m_service;
+ Session * m_session;
+ NdbThread * m_thread;
+ };
+ struct ServiceInstance {
+ Service * m_service;
+ NDB_SOCKET_TYPE m_socket;
+ };
+ MutexVector<SessionInstance> m_sessions;
+ MutexVector<ServiceInstance> m_services;
+ unsigned m_maxSessions;
+
+ void doAccept();
+ void checkSessions();
+ void startSession(SessionInstance &);
+
+ /**
+ * Note, this thread is only used when running interactive
+ *
+ */
+ bool m_stopThread;
+ struct NdbThread * m_thread;
+ NdbLockable m_threadLock;
+ void doRun();
+ friend void* socketServerThread_C(void*);
+ friend void* sessionThread_C(void*);
+};
+
+#endif