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/* Check for interrupts */
#ifdef MSDOS
/* This might work for MS-DOS (untested though): */
void
initintr()
{
}
int
intrcheck()
{
int interrupted = 0;
while (kbhit()) {
if (getch() == '\003')
interrupted = 1;
}
return interrupted;
}
#define OK
#endif
#ifdef THINK_C
/* This is for THINK C 4.0.
For 3.0, you may have to remove the signal stuff. */
#include <MacHeaders>
#include <signal.h>
#include "sigtype.h"
static int interrupted;
static SIGTYPE
intcatcher(sig)
int sig;
{
interrupted = 1;
signal(SIGINT, intcatcher);
}
void
initintr()
{
if (signal(SIGINT, SIG_IGN) != SIG_IGN)
signal(SIGINT, intcatcher);
}
int
intrcheck()
{
register EvQElPtr q;
/* This is like THINK C 4.0's <console.h>.
I'm not sure why FlushEvents must be called from asm{}. */
for (q = (EvQElPtr)EventQueue.qHead; q; q = (EvQElPtr)q->qLink) {
if (q->evtQWhat == keyDown &&
(char)q->evtQMessage == '.' &&
(q->evtQModifiers & cmdKey) != 0) {
asm {
moveq #keyDownMask,d0
_FlushEvents
}
interrupted = 1;
break;
}
}
if (interrupted) {
interrupted = 0;
return 1;
}
return 0;
}
#define OK
#endif /* THINK_C */
#ifndef OK
/* Default version -- for real operating systems and for Standard C */
#include <stdio.h>
#include <signal.h>
#include "sigtype.h"
static int interrupted;
static SIGTYPE
intcatcher(sig)
int sig;
{
interrupted = 1;
signal(SIGINT, intcatcher);
}
void
initintr()
{
if (signal(SIGINT, SIG_IGN) != SIG_IGN)
signal(SIGINT, intcatcher);
}
int
intrcheck()
{
if (!interrupted)
return 0;
interrupted = 0;
return 1;
}
#endif /* !OK */
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