/* -*- C++ -*- */
// $Id$


// ============================================================================
//
// = LIBRARY
//    EventComm
// 
// = FILENAME
//    Input_Handler.h
//
// = DESCRIPTION 
//    Handle input from the keyboard.
//
// = AUTHOR
//    Douglas C. Schmidt (schmidt@cs.wustl.edu)
// 
// ============================================================================

#if !defined (_INPUT_HANDLER_H)
#define _INPUT_HANDLER_H

#include "ace/Service_Config.h"

#if defined (ACE_HAS_ORBIX)

// Forward declaration.
class Notifier_Handler;

class Input_Handler : public ACE_Service_Object
  // = TITLE
  //   Handles input events generated from a keyboard.
  //
  // = DESCRIPTION
  //   The events are currently framed and forwarded to 
  //   all Consumers.  In the future, we will need to
  //   be more selective and only send to those Consumers
  //   whose filtering criteria matches!
{
public:
  Input_Handler (Notifier_Handler *, ACE_HANDLE = 0); // Use stdin by default.

  virtual int handle_input (ACE_HANDLE);
  // Frame input events and notify <Consumers>.

  virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
			    ACE_Reactor_Mask = ACE_Event_Handler::NULL_MASK);
  // Close down the handler.

protected:
  virtual ACE_HANDLE get_handle (void) const;

  ACE_HANDLE handle_;
  // ACE_HANDLE where the input comes from. 

  Notifier_Handler *notifier_;
  // Pointer to a <Notifier_Handler> that's used to inform
  // Consumers that events of interest have occurred.

  FILE *fp_;
  // Pointer to an input ACE_FILE.

private:
  ~Input_Handler (void);
  // Ensure dynamic allocation.
};

#endif /* ACE_HAS_ORBIX */
#endif /* _INPUT_HANDLER_H */