diff options
Diffstat (limited to 'sysdeps/unix/sysv/sysv4/sigset.h')
-rw-r--r-- | sysdeps/unix/sysv/sysv4/sigset.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/sysdeps/unix/sysv/sysv4/sigset.h b/sysdeps/unix/sysv/sysv4/sigset.h deleted file mode 100644 index 1461c93b3d..0000000000 --- a/sysdeps/unix/sysv/sysv4/sigset.h +++ /dev/null @@ -1,96 +0,0 @@ -/* __sig_atomic_t, __sigset_t, and related definitions. SVR4 version. - Copyright (C) 1994, 1995, 1996 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. */ -typedef struct - { - unsigned long int __sigbits[4]; - } __sigset_t; - -#endif /* ! _SIGSET_H_types */ - -/* 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 - -/* Return a mask that includes SIG only. */ -#define __sigmask(sig) (1 << ((sig) - 1)) - - -/* It's easier to assume 8-bit bytes than to get CHAR_BIT. */ -#define __NSSBITS (sizeof (__sigset_t) * 8) -#define __SSELT(s) ((s) / __NSSBITS) -#define __SSMASK(s) (1 << ((s) % __NSSBITS)) - -#ifndef _EXTERN_INLINE -#define _EXTERN_INLINE extern __inline -#endif - -_EXTERN_INLINE int -__sigemptyset (__sigset_t *__set) -{ - __set->__sigbits[0] = __set->__sigbits[1] = - __set->__sigbits[2] = __set->__sigbits[3] = 0L; - return 0; -} - -_EXTERN_INLINE int -__sigfillset (__sigset_t *__set) -{ - /* SVR4 has a system call for `sigfillset' (!), and it only sets the bits - for signals [1,31]. Setting bits for unimplemented signals seems - harmless (and we will find out if it really is). */ - __set->__sigbits[0] = __set->__sigbits[1] = - __set->__sigbits[2] = __set->__sigbits[3] = ~0L; - return 0; -} - -_EXTERN_INLINE int -__sigaddset (__sigset_t *__set, int __sig) -{ - __set->__sigbits[__SSELT (__sig)] |= __SSMASK (__sig); - return 0; -} - -_EXTERN_INLINE int -__sigdelset (__sigset_t *__set, int __sig) -{ - __set->__sigbits[__SSELT (__sig)] &= ~__SSMASK (__sig); - return 0; -} - -_EXTERN_INLINE int -__sigismember (__const __sigset_t *__set, int __sig) -{ - if (__set->__sigbits[__SSELT (__sig)] & __SSMASK (__sig)) - return 1; - return 0; -} - -#endif /* ! _SIGSET_H_fns */ |