Copyright (C) Simon Wright <simon@pushface.org>
This package is free software; you can redistribute it and/or modify it under terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This package is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License distributed with this package; see file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Contains the input-output domain Digital_IO for ColdFrame's House Management demonstration.
This type is a class-wide pointer to the abstract type Implementation; the required concrete bottom half calls Register to connect itself to the top half.
Imported from Digital_IO_Support.
Implementation_Class_P has operations:
The required bottom half calls Register to connect itself to the top half.
Parameters:
Numbers the input (switch) signal pins.
A constrained version of Integer from 0 to 15.
Input_Signal has operations:
Returns the current state of the input signal for pin S.
Parameters:
Provides application domains with callback facilities for input signal state changes.
Callback support is provided.
A record type, with attributes:
The input signal that has changed.
The state that the signal has changed to.
Numbers the output (lamp) signal pins.
A constrained version of Integer from 0 to 15.
Output_Signal has operations:
Sets the given output signal to the given state.
Parameters: