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96 lines
1.2 KiB
C
96 lines
1.2 KiB
C
/* Check for interrupts */
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#ifdef MSDOS
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/* This might work for MS-DOS (untested though): */
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void
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initintr()
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{
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}
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int
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intrcheck()
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{
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int interrupted = 0;
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while (kbhit()) {
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if (getch() == '\003')
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interrupted = 1;
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}
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return interrupted;
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}
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#define OK
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#endif
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#ifdef THINK_C
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#include <MacHeaders>
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void
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initintr()
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{
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}
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int
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intrcheck()
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{
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/* Static to make it faster only */
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static EventRecord e;
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/* XXX This fails if the user first types ahead and then
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decides to interrupt -- repeating Command-. until the
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event queue overflows may work though. */
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if (EventAvail(keyDownMask|autoKeyMask, &e) &&
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(e.modifiers & cmdKey) &&
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(e.message & charCodeMask) == '.') {
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(void) GetNextEvent(keyDownMask|autoKeyMask, &e);
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return 1;
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}
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return 0;
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}
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#define OK
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#endif /* THINK_C */
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#ifndef OK
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/* Default version -- for real operating systems and for Standard C */
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#include <stdio.h>
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#include <signal.h>
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#include "sigtype.h"
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static int interrupted;
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static SIGTYPE
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intcatcher(sig)
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int sig;
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{
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interrupted = 1;
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signal(SIGINT, intcatcher);
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}
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void
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initintr()
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{
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if (signal(SIGINT, SIG_IGN) != SIG_IGN)
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signal(SIGINT, intcatcher);
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}
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int
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intrcheck()
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{
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if (!interrupted)
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return 0;
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interrupted = 0;
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return 1;
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}
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#endif /* !OK */
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