core/Event_Handler.hh

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2015 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 #ifndef EVENT_HANDLER_HH
   9 #define EVENT_HANDLER_HH
  10
  11 #include "Types.h"
  12 #include <sys/select.h>
  13
  14 /**
  15 * The definitions in this header file are needed for TITAN.
  16 * These classes should not be used in user code.
  17 * These classes are used as base classes for class PORT.
  18 */
  19
  20 class Fd_Event_Handler {
  21   virtual void Handle_Fd_Event(int fd,
  22     boolean is_readable, boolean is_writeable, boolean is_error) = 0;
  23
  24 public:
  25   Fd_Event_Handler() {}
  26   virtual ~Fd_Event_Handler() {}
  27   virtual void log() const;
  28 private:
  29   Fd_Event_Handler(const Fd_Event_Handler&);
  30   const Fd_Event_Handler & operator= (const Fd_Event_Handler &);
  31   friend class Fd_And_Timeout_User;
  32   friend class Handler_List;
  33 };
  34
  35
  36 class Handler_List;
  37 class FdSets;
  38
  39 class Fd_And_Timeout_Event_Handler : public Fd_Event_Handler {
  40   virtual void Handle_Fd_Event(int fd,
  41     boolean is_readable, boolean is_writeable, boolean is_error);
  42   virtual void Handle_Timeout(double time_since_last_call);
  43   /// Copy constructor disabled
  44   Fd_And_Timeout_Event_Handler(const Fd_And_Timeout_Event_Handler&);
  45   /// Assignment disabled
  46   Fd_And_Timeout_Event_Handler& operator=(const Fd_And_Timeout_Event_Handler&);
  47 public:
  48   virtual void Event_Handler(const fd_set *read_fds, const fd_set *write_fds,
  49     const fd_set *error_fds, double time_since_last_call);
  50
  51 public:
  52   inline Fd_And_Timeout_Event_Handler() :
  53   callInterval(0.0), last_called(0.0), list(0), prev(0), next(0),
  54   fdSets(0), fdCount(0),
  55   isTimeout(TRUE), callAnyway(TRUE), isPeriodic(TRUE),
  56   hasEvent(FALSE)
  57   {}
  58   virtual ~Fd_And_Timeout_Event_Handler();
  59   virtual void log() const;
  60
  61   friend class Fd_And_Timeout_User;
  62   friend class Handler_List;
  63 private:
  64   double callInterval, last_called;
  65   Handler_List * list;
  66   Fd_And_Timeout_Event_Handler * prev, * next;
  67   FdSets * fdSets;
  68   int fdCount;
  69   boolean isTimeout, callAnyway, isPeriodic;
  70   boolean hasEvent;
  71 protected:
  72   boolean getIsOldApi() { return fdSets != 0; }
  73 };
  74
  75 #endif