85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
#ifndef _OWLPS_POSITIONING_INPUTMEDIUM_HH_
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#define _OWLPS_POSITIONING_INPUTMEDIUM_HH_
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class ReferencePoint ;
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class Direction ;
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#include "request.hh"
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/// Super class of all input media
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/**
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* Provide interface for input media, i.e. to read Request sent by a
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* Mobile.
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*/
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class InputMedium
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{
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protected:
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Request *current_request ;
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/// Number of the current line proceeded
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unsigned long current_line_nb ;
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public:
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InputMedium(void) ;
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virtual ~InputMedium(void) ;
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/** @name Read accessors */
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//@{
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const Request& get_current_request(void) const ;
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unsigned int get_current_line_nb(void) const ;
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/// Checks if the last request has been reached
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/**
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* @return \em true if the last request has been reached.
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* @return \em false if there is something more to read.
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*/
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virtual bool eof(void) const = 0 ;
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//@} // End Read accessors
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/** @name Operations */
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//@{
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/// Reads the next request
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/**
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* Reads a Request, increments current_line_nb, updates #current_request
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* and returns it.
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* @return The Request read, or an empty Request in case of error or
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* EOF (note that when casted in bool, an empty Request is false, see
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* Request::operator bool()).
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*/
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virtual const Request& get_next_request(void) = 0 ;
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/// Converts #current_request into a CalibrationRequest
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void current_request_to_calibration_request(
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const ReferencePoint *const reference_point,
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const Direction &direction,
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uint_fast8_t request_type) ;
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/// Clears (reallocates to Request if needed) #current_request
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void clear_current_request(void) ;
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//@} // End Operations
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} ;
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/* *** Read accessors *** */
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inline const Request& InputMedium::get_current_request() const
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{
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return *current_request ;
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}
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inline unsigned int InputMedium::get_current_line_nb() const
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{
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return current_line_nb ;
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}
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#endif // _OWLPS_POSITIONING_INPUTMEDIUM_HH_
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