123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990 |
- #ifndef __SIGSET_H__
- #define __SIGSET_H__
- /* __sig_atomic_t, __sigset_t, and related definitions. Linux version.
- Copyright (C) 1991, 1992, 1994, 1996, 1997, 2007
- 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #define _SIGSET_H_types 1
- #define _SIGSET_H_fns 1
- #define ____sigset_t_defined
- typedef int __sig_atomic_t;
- /* A `sigset_t' has a bit for each signal. */
- #define _SIGSET_NWORDS (64 / (8 * sizeof(unsigned long int)))
- typedef struct {
- unsigned long int __val[_SIGSET_NWORDS];
- } __sigset_t;
- /* Return a mask that includes the bit for SIG only. */
- #define __sigmask(sig) (((unsigned long int)1) << (((sig) - 1) % (8 * sizeof(unsigned long int))))
- /* Return the word index for SIG. */
- #define __sigword(sig) (((sig) - 1) / (8 * sizeof(unsigned long int)))
- #define __sigemptyset(set) \
- ({ \
- int __cnt = _SIGSET_NWORDS; \
- __sigset_t* __set = (set); \
- while (--__cnt >= 0) { \
- __set->__val[__cnt] = 0; \
- } \
- 0; \
- })
- #define __sigfillset(set) \
- ({ \
- int __cnt = _SIGSET_NWORDS; \
- __sigset_t* __set = (set); \
- while (--__cnt >= 0) { \
- __set->__val[__cnt] = ~0UL; \
- } \
- 0; \
- })
- #define __sigcopyset(set, src) \
- ({ \
- int __cnt = _SIGSET_NWORDS; \
- __sigset_t* __set = (set); \
- __sigset_t* __src = (src); \
- while (--__cnt >= 0) { \
- __set->__val[__cnt] = __src->__val[__cnt]; \
- } \
- 0; \
- })
- /* These functions needn't check for a bogus signal number -- error
- checking is done in the non __ versions. */
- #define __SIGSETFN(NAME, BODY, CONST) \
- static 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__ */
|