core/Event_Handler.hh

   1 /******************************************************************************
   2  * Copyright (c) 2000-2016 Ericsson Telecom AB
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *   Balasko, Jeno
  10  *   Feher, Csaba
  11  *   Raduly, Csaba
  12  *
  13  ******************************************************************************/
  14 #ifndef EVENT_HANDLER_HH
  15 #define EVENT_HANDLER_HH
  16
  17 #include "Types.h"
  18 #include <sys/select.h>
  19
  20 /**
  21 * The definitions in this header file are needed for TITAN.
  22 * These classes should not be used in user code.
  23 * These classes are used as base classes for class PORT.
  24 */
  25
  26 class Fd_Event_Handler {
  27   virtual void Handle_Fd_Event(int fd,
  28     boolean is_readable, boolean is_writeable, boolean is_error) = 0;
  29
  30 public:
  31   Fd_Event_Handler() {}
  32   virtual ~Fd_Event_Handler() {}
  33   virtual void log() const;
  34 private:
  35   Fd_Event_Handler(const Fd_Event_Handler&);
  36   const Fd_Event_Handler & operator= (const Fd_Event_Handler &);
  37   friend class Fd_And_Timeout_User;
  38   friend class Handler_List;
  39 };
  40
  41
  42 class Handler_List;
  43 class FdSets;
  44
  45 class Fd_And_Timeout_Event_Handler : public Fd_Event_Handler {
  46   virtual void Handle_Fd_Event(int fd,
  47     boolean is_readable, boolean is_writeable, boolean is_error);
  48   virtual void Handle_Timeout(double time_since_last_call);
  49   /// Copy constructor disabled
  50   Fd_And_Timeout_Event_Handler(const Fd_And_Timeout_Event_Handler&);
  51   /// Assignment disabled
  52   Fd_And_Timeout_Event_Handler& operator=(const Fd_And_Timeout_Event_Handler&);
  53 public:
  54   virtual void Event_Handler(const fd_set *read_fds, const fd_set *write_fds,
  55     const fd_set *error_fds, double time_since_last_call);
  56
  57 public:
  58   inline Fd_And_Timeout_Event_Handler() :
  59   callInterval(0.0), last_called(0.0), list(0), prev(0), next(0),
  60   fdSets(0), fdCount(0),
  61   isTimeout(TRUE), callAnyway(TRUE), isPeriodic(TRUE),
  62   hasEvent(FALSE)
  63   {}
  64   virtual ~Fd_And_Timeout_Event_Handler();
  65   virtual void log() const;
  66
  67   friend class Fd_And_Timeout_User;
  68   friend class Handler_List;
  69 private:
  70   double callInterval, last_called;
  71   Handler_List * list;
  72   Fd_And_Timeout_Event_Handler * prev, * next;
  73   FdSets * fdSets;
  74   int fdCount;
  75   boolean isTimeout, callAnyway, isPeriodic;
  76   boolean hasEvent;
  77 protected:
  78   boolean getIsOldApi() { return fdSets != 0; }
  79 };
  80
  81 #endif