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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/usr/include/
1/* Copyright (C) 1991-1999, 2001 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
4   The GNU C Library is free software; you can redistribute it and/or
5   modify it under the terms of the GNU Lesser General Public
6   License as published by the Free Software Foundation; either
7   version 2.1 of the License, or (at your option) any later version.
8
9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, write to the Free
16   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17   02111-1307 USA.  */
18
19/*
20 *	ISO C99 Standard: 7.13 Nonlocal jumps	<setjmp.h>
21 */
22
23#ifndef	_SETJMP_H
24#define	_SETJMP_H	1
25
26#include <features.h>
27
28__BEGIN_DECLS
29
30#include <bits/setjmp.h>		/* Get `__jmp_buf'.  */
31#include <bits/sigset.h>		/* Get `__sigset_t'.  */
32
33/* Calling environment, plus possibly a saved signal mask.  */
34typedef struct __jmp_buf_tag	/* C++ doesn't like tagless structs.  */
35  {
36    /* NOTE: The machine-dependent definitions of `__sigsetjmp'
37       assume that a `jmp_buf' begins with a `__jmp_buf' and that
38       `__mask_was_saved' follows it.  Do not move these members
39       or add others before it.  */
40    __jmp_buf __jmpbuf;		/* Calling environment.  */
41    int __mask_was_saved;	/* Saved the signal mask?  */
42    __sigset_t __saved_mask;	/* Saved signal mask.  */
43  } jmp_buf[1];
44
45
46/* Store the calling environment in ENV, also saving the signal mask.
47   Return 0.  */
48extern int setjmp (jmp_buf __env) __THROW;
49
50/* Store the calling environment in ENV, not saving the signal mask.
51   Return 0.  */
52extern int _setjmp (jmp_buf __env) __THROW;
53
54/* Store the calling environment in ENV, also saving the
55   signal mask if SAVEMASK is nonzero.  Return 0.
56   This is the internal name for `sigsetjmp'.  */
57extern int __sigsetjmp (jmp_buf __env, int __savemask) __THROW;
58
59#ifndef	__FAVOR_BSD
60/* Do not save the signal mask.  This is equivalent to the `_setjmp'
61   BSD function.  */
62# define setjmp(env)	_setjmp (env)
63#else
64/* We are in 4.3 BSD-compatibility mode in which `setjmp'
65   saves the signal mask like `sigsetjmp (ENV, 1)'.  We have to
66   define a macro since ISO C says `setjmp' is one.  */
67# define setjmp(env)	setjmp (env)
68#endif /* Favor BSD.  */
69
70
71/* Jump to the environment saved in ENV, making the
72   `setjmp' call there return VAL, or 1 if VAL is 0.  */
73extern void longjmp (jmp_buf __env, int __val)
74     __THROW __attribute__ ((__noreturn__));
75#if defined __USE_BSD || defined __USE_XOPEN
76/* Same.  Usually `_longjmp' is used with `_setjmp', which does not save
77   the signal mask.  But it is how ENV was saved that determines whether
78   `longjmp' restores the mask; `_longjmp' is just an alias.  */
79extern void _longjmp (jmp_buf __env, int __val)
80     __THROW __attribute__ ((__noreturn__));
81#endif
82
83
84#ifdef	__USE_POSIX
85/* Use the same type for `jmp_buf' and `sigjmp_buf'.
86   The `__mask_was_saved' flag determines whether
87   or not `longjmp' will restore the signal mask.  */
88typedef jmp_buf sigjmp_buf;
89
90/* Store the calling environment in ENV, also saving the
91   signal mask if SAVEMASK is nonzero.  Return 0.  */
92# define sigsetjmp(env, savemask)	__sigsetjmp (env, savemask)
93
94/* Jump to the environment saved in ENV, making the
95   sigsetjmp call there return VAL, or 1 if VAL is 0.
96   Restore the signal mask if that sigsetjmp call saved it.
97   This is just an alias `longjmp'.  */
98extern void siglongjmp (sigjmp_buf __env, int __val)
99     __THROW __attribute__ ((__noreturn__));
100#endif /* Use POSIX.  */
101
102__END_DECLS
103
104#endif /* setjmp.h  */
105