vrpn_Event_Analog.h

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/**************************************************************************************************/
/*                                                                                                */
/* Copyright (C) 2004 Bauhaus University Weimar                                                   */
/* Released into the public domain on 6/23/2007 as part of the VRPN project                        */
/* by Jan P. Springer.                                                                             */
/*                                                                                                */
/**************************************************************************************************/
/*                                                                                                */
/* module     :  vrpn_Event_Analog.h                                                              */
/* project    :                                                                                   */
/* description:  base class for devices using event interface                                     */
/*                                                                                                */
/**************************************************************************************************/
 
#ifndef _VRPN_EVENT_ANALOG_H_
#define _VRPN_EVENT_ANALOG_H_
 
// includes, system
 
// includes, project
#include "vrpn_Analog.h"                // for vrpn_Analog
#include "vrpn_Configure.h"             // for VRPN_API
#include "vrpn_Event.h"                 // for input_event
 
class VRPN_API vrpn_Connection;
 
class VRPN_API vrpn_Event_Analog: public vrpn_Analog {
 
public:
 
  // constructor
  // evdev is the event file name
  vrpn_Event_Analog( const char * name,
                     vrpn_Connection * connection,
                     const char * evdev_name);
 
  ~vrpn_Event_Analog();
 
protected:
 
  // read available events
  // returns number of structs read successfully
  int read_available_data();
 
protected:
 
  // typedefs for convenience
  typedef vrpn_vector<struct vrpn_Event::input_event> event_vector_t;
 
  // handle to the event interface
  int fd;
 
  // maximal number of event structs read at once
  unsigned long max_num_events;
 
  // container for the event structs read
  event_vector_t  event_data;
 
};
 
#endif // _VRPN_EVENT_ANALOG_H_