96 lines
1.2 KiB
C
96 lines
1.2 KiB
C
/* 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
|
|
|
|
#include <MacHeaders>
|
|
|
|
void
|
|
initintr()
|
|
{
|
|
}
|
|
|
|
int
|
|
intrcheck()
|
|
{
|
|
/* Static to make it faster only */
|
|
static EventRecord e;
|
|
|
|
/* XXX This fails if the user first types ahead and then
|
|
decides to interrupt -- repeating Command-. until the
|
|
event queue overflows may work though. */
|
|
if (EventAvail(keyDownMask|autoKeyMask, &e) &&
|
|
(e.modifiers & cmdKey) &&
|
|
(e.message & charCodeMask) == '.') {
|
|
(void) GetNextEvent(keyDownMask|autoKeyMask, &e);
|
|
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 */
|