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authorEric Andersen <andersen@codepoet.org>2001-11-14 07:34:46 +0000
committerEric Andersen <andersen@codepoet.org>2001-11-14 07:34:46 +0000
commit7ec11f7e1cd24b4c1051140cc412c20e210f1ee8 (patch)
tree91a332ba854629d95c9e09095ad40eb516229b74 /libc/sysdeps/linux/m68k/bits/sigset.h
parent40f41cdcdbd34179b696a7466344524e2d0c0222 (diff)
Sync up m68k headers
Diffstat (limited to 'libc/sysdeps/linux/m68k/bits/sigset.h')
-rw-r--r--libc/sysdeps/linux/m68k/bits/sigset.h92
1 files changed, 74 insertions, 18 deletions
diff --git a/libc/sysdeps/linux/m68k/bits/sigset.h b/libc/sysdeps/linux/m68k/bits/sigset.h
index ccc6431a1..7ccadda45 100644
--- a/libc/sysdeps/linux/m68k/bits/sigset.h
+++ b/libc/sysdeps/linux/m68k/bits/sigset.h
@@ -3,19 +3,19 @@
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.
+ 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
- Library General Public License for more details.
+ Lesser 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. */
+ 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. */
#ifndef _SIGSET_H_types
# define _SIGSET_H_types 1
@@ -24,7 +24,11 @@ typedef int __sig_atomic_t;
/* A `sigset_t' has a bit for each signal. */
-typedef unsigned long __sigset_t;
+# define _SIGSET_NWORDS (1024 / (8 * sizeof (unsigned long int)))
+typedef struct
+ {
+ unsigned long int __val[_SIGSET_NWORDS];
+ } __sigset_t;
#endif
@@ -43,27 +47,79 @@ typedef unsigned long __sigset_t;
# endif
/* Return a mask that includes the bit for SIG only. */
-# define __sigmask(sig) (1L << ((sig) - 1))
+# 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)))
# if defined __GNUC__ && __GNUC__ >= 2
-# define __sigemptyset(set) (*((sigset_t *) set) = 0)
-# define __sigfillset(set) (*((sigset_t *) set) = ~0)
+# 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 __USE_GNU
/* 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) (*((sigset_t *) set) == 0)
-# define __sigandset(dest, left, right) (*(dest) = *(left) & *(right))
-# define __sigorset(dest, left, right) (*(dest) = *(left) | *(right))
+# 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. */
-# define __sigismember(set, sig) (*((sigset_t *) set) & (1L << ((sig)-1)))
-# define __sigaddset(set, sig) (*((sigset_t *) set) |= (1L << ((sig)-1)))
-# define __sigdelset(set, sig) (*((sigset_t *) set) &= ~(1L << ((sig)-1)))
+extern int __sigismember (__const __sigset_t *, int);
+extern int __sigaddset (__sigset_t *, int);
+extern int __sigdelset (__sigset_t *, int);
+
+# ifdef __USE_EXTERN_INLINES
+# 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
+
#endif /* ! _SIGSET_H_fns. */