Atlas - SIGNAL.H
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[FILE BEGIN]
1/***
2*signal.h - defines signal values and routines
3*
4*   Copyright (c) 1985-1988, Microsoft Corporation.  All rights reserved.
5*
6*Purpose:
7*   This file defines the signal values and declares the signal functions.
8*   [ANSI/System V]
9*
10*******************************************************************************/
11
12
13#ifndef NO_EXT_KEYS /* extensions enabled */
14    #define _CDECL  cdecl
15#else /* extensions not enabled */
16    #define _CDECL
17#endif /* NO_EXT_KEYS */
18
19#ifndef _SIG_ATOMIC_T_DEFINED
20typedef int sig_atomic_t;
21#define _SIG_ATOMIC_T_DEFINED
22#endif
23
24
25#define NSIG 23     /* maximum signal number + 1 */
26
27/* signal types */
28/* SIGINT, SIGFPE, SIGILL, SIGSEGV, and SIGABRT are recognized on DOS 3.x */
29
30#define SIGINT      2   /* interrupt - corresponds to DOS 3.x int 23H */
31#define SIGILL      4   /* illegal instruction - invalid function image */
32#define SIGFPE      8   /* floating point exception */
33#define SIGSEGV     11  /* segment violation */
34#define SIGTERM     15  /* Software termination signal from kill */
35#define SIGUSR1     16  /* User defined signal 1 */
36#define SIGUSR2     17  /* User defined signal 2 */
37#define SIGUSR3     20  /* User defined signal 3 */
38#define SIGBREAK    21  /* Ctrl-Break sequence */
39#define SIGABRT     22  /* abnormal termination triggered by abort call */
40
41
42/* signal action codes */
43/* SIG_DFL and SIG_IGN are recognized on DOS 3.x */
44
45#define SIG_DFL (void (*)())0 /* default signal action */
46#define SIG_IGN (void (*)())1 /* ignore */
47#define SIG_SGE (void (*)())3 /* signal gets error */
48#define SIG_ACK (void (*)())4 /* error if handler not setup */
49
50
51/* signal error value (returned by signal call on error) */
52
53#define SIG_ERR (void (*)())-1    /* signal error value */
54
55
56/* function prototypes */
57
58void (_CDECL * _CDECL signal(int, void (_CDECL *)()))();
59int _CDECL raise(int);
60
[FILE END]
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