blob: 8c351149bc608b42fa6ad719b18773938323d035 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* 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 */
|
