SigAction.h revision 50276 
1/****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3 *                                                                          *
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5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
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9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
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24 * holders shall not be used in advertising or otherwise to promote the     *
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27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 ****************************************************************************/
33
34/*
35 * $Id: SigAction.h,v 1.5 1999/06/19 23:00:54 tom Exp $
36 *
37 * This file exists to handle non-POSIX systems which don't have <unistd.h>,
38 * and usually no sigaction() nor <termios.h>
39 */
40
41#ifndef _SIGACTION_H
42#define _SIGACTION_H
43
44#ifndef HAVE_SIGACTION
45#define HAVE_SIGACTION 0
46#endif
47
48#ifndef HAVE_SIGVEC
49#define HAVE_SIGVEC 0
50#endif
51
52#if HAVE_SIGACTION
53
54#if !HAVE_TYPE_SIGACTION
55typedef struct sigaction sigaction_t;
56#endif
57
58#else	/* !HAVE_SIGACTION */
59
60#if HAVE_SIGVEC
61
62#if HAVE_LIBC_H
63#include <libc.h>
64#endif
65
66#undef  SIG_BLOCK
67#define SIG_BLOCK       00
68
69#undef  SIG_UNBLOCK
70#define SIG_UNBLOCK     01
71
72#undef  SIG_SETMASK
73#define SIG_SETMASK     02
74
75 	/*
76	 * <bsd/signal.h> is in the Linux 1.2.8 + gcc 2.7.0 configuration,
77	 * and is useful for testing this header file.
78	 */
79#if HAVE_BSD_SIGNAL_H
80#include <bsd/signal.h>
81#endif
82
83typedef struct sigvec sigaction_t;
84
85#define sigset_t _nc_sigset_t
86typedef unsigned long sigset_t;
87
88#undef  sa_mask
89#define sa_mask sv_mask
90#undef  sa_handler
91#define sa_handler sv_handler
92#undef  sa_flags
93#define sa_flags sv_flags
94
95#undef  sigaction
96#define sigaction   _nc_sigaction
97#undef  sigprocmask
98#define sigprocmask _nc_sigprocmask
99#undef  sigemptyset
100#define sigemptyset _nc_sigemptyset
101#undef  sigsuspend
102#define sigsuspend  _nc_sigsuspend
103#undef  sigdelset
104#define sigdelset   _nc_sigdelset
105#undef  sigaddset
106#define sigaddset   _nc_sigaddset
107
108extern int sigaction (int sig, sigaction_t * sigact, sigaction_t *  osigact);
109extern int sigprocmask (int how, sigset_t *mask, sigset_t *omask);
110extern int sigemptyset (sigset_t *mask);
111extern int sigsuspend (sigset_t *mask);
112extern int sigdelset (sigset_t *mask, int sig);
113extern int sigaddset (sigset_t *mask, int sig);
114
115#endif /* HAVE_SIGVEC */
116#endif /* HAVE_SIGACTION */
117#endif /* !defined(_SIGACTION_H) */
118