diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sigset.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sigset.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/sysdeps/unix/sysv/linux/sigset.h b/sysdeps/unix/sysv/linux/sigset.h deleted file mode 100644 index 741ff9ac9d..0000000000 --- a/sysdeps/unix/sysv/linux/sigset.h +++ /dev/null @@ -1,123 +0,0 @@ -/* __sig_atomic_t, __sigset_t, and related definitions. Linux version. - Copyright (C) 1991, 1992, 1994, 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _SIGSET_H_types -#define _SIGSET_H_types 1 - -typedef int __sig_atomic_t; - -/* A `sigset_t' has a bit for each signal. */ - -#define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int))) -typedef struct - { - unsigned long int __val[_SIGSET_NWORDS]; - } __sigset_t; - -#endif - - -/* We only want to define these functions if <signal.h> was actually - included; otherwise we were included just to define the types. Since we - are namespace-clean, it wouldn't hurt to define extra macros. But - trouble can be caused by functions being defined (e.g., any global - register vars declared later will cause compilation errors). */ - -#if !defined (_SIGSET_H_fns) && defined (_SIGNAL_H) -#define _SIGSET_H_fns 1 - -#ifndef _EXTERN_INLINE -#define _EXTERN_INLINE extern __inline -#endif - -/* Return a mask that includes the bit for SIG only. */ -#define __sigmask(sig) \ - (((unsigned long) 1) << (((sig) - 1) % (8 * sizeof (unsigned long int)))) - -/* Return the word index for SIG. */ -#define __sigword(sig) (((sig) - 1) / (8 * sizeof (unsigned long int))) - -#if defined __GNUC__ && __GNUC__ >= 2 -# define __sigemptyset(set) \ - (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ - sigset_t *__set = (set); \ - while (--__cnt >= 0) __set->__val[__cnt] = 0; \ - 0; })) -# define __sigfillset(set) \ - (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ - sigset_t *__set = (set); \ - while (--__cnt >= 0) __set->__val[__cnt] = ~0UL; \ - 0; })) - -# ifdef _GNU_SOURCE -/* The POSIX does not specify for handling the whole signal set in one - command. This is often wanted and so we define three more functions - here. */ -# define __sigisemptyset(set) \ - (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ - const sigset_t *__set = (set); \ - int __ret = __set->__val[--__cnt]; \ - while (!__ret && --__cnt >= 0) \ - __ret = __set->__val[__cnt]; \ - __ret == 0; })) -# define __sigandset(dest, left, right) \ - (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ - sigset_t *__dest = (dest); \ - const sigset_t *__left = (left); \ - const sigset_t *__right = (right); \ - while (--__cnt >= 0) \ - __dest->__val[__cnt] = (__left->__val[__cnt] \ - & __right->__val[__cnt]); \ - 0; })) -# define __sigorset(dest, left, right) \ - (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ - sigset_t *__dest = (dest); \ - const sigset_t *__left = (left); \ - const sigset_t *__right = (right); \ - while (--__cnt >= 0) \ - __dest->__val[__cnt] = (__left->__val[__cnt] \ - | __right->__val[__cnt]); \ - 0; })) -# endif -#endif - -/* These functions needn't check for a bogus signal number -- error - checking is done in the non __ versions. */ - -extern int __sigismember (__const __sigset_t *, int); -extern int __sigaddset (__sigset_t *, int); -extern int __sigdelset (__sigset_t *, int); - -#define __SIGSETFN(NAME, BODY, CONST) \ - _EXTERN_INLINE int \ - NAME (CONST __sigset_t *__set, int __sig) \ - { \ - unsigned long int __mask = __sigmask (__sig); \ - unsigned long int __word = __sigword (__sig); \ - return BODY; \ - } - -__SIGSETFN (__sigismember, (__set->__val[__word] & __mask) ? 1 : 0, __const) -__SIGSETFN (__sigaddset, ((__set->__val[__word] |= __mask), 0), ) -__SIGSETFN (__sigdelset, ((__set->__val[__word] &= ~__mask), 0), ) - -#undef __SIGSETFN - - -#endif /* ! _SIGSET_H_fns. */ |