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/****************************************************************************
*
* SciTech OS Portability Manager Library
*
* ========================================================================
*
* The contents of this file are subject to the SciTech MGL Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.scitechsoft.com/mgl-license.txt
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
*
* The Initial Developer of the Original Code is SciTech Software, Inc.
* All Rights Reserved.
*
* ========================================================================
*
*
* Language: ANSI C
* Environment: any
*
* Description: Test program to check the ability to install a C based
* control C/break interrupt handler. Note that this
* alternate version does not work with all extenders.
*
* Functions tested: PM_installAltBreakHandler()
* PM_restoreBreakHandler()
*
*
****************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include "pmapi.h"
volatile int breakHit = false;
volatile int ctrlCHit = false;
#pragma off (check_stack) /* No stack checking under Watcom */
void PMAPI breakHandler(uint bHit)
{
if (bHit)
breakHit = true;
else
ctrlCHit = true;
}
int main(void)
{
printf("Program running in ");
switch (PM_getModeType()) {
case PM_realMode:
printf("real mode.\n\n");
break;
case PM_286:
printf("16 bit protected mode.\n\n");
break;
case PM_386:
printf("32 bit protected mode.\n\n");
break;
}
PM_installAltBreakHandler(breakHandler);
printf("Control C/Break interrupt handler installed\n");
while (1) {
if (ctrlCHit) {
printf("Code termimated with Ctrl-C.\n");
break;
}
if (breakHit) {
printf("Code termimated with Ctrl-Break.\n");
break;
}
if (PM_kbhit() && PM_getch() == 0x1B) {
printf("No break code detected!\n");
break;
}
printf("Hit Ctrl-C or Ctrl-Break to exit!\n");
}
PM_restoreBreakHandler();
return 0;
}
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