diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sigset.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sigset.h | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/sigset.h b/sysdeps/unix/sysv/linux/sigset.h index 752d13adff..62e668773c 100644 --- a/sysdeps/unix/sysv/linux/sigset.h +++ b/sysdeps/unix/sysv/linux/sigset.h @@ -54,16 +54,47 @@ typedef struct #define __sigword(sig) (((sig) - 1) / (8 * sizeof (unsigned long int))) #if defined __GNUC__ && __GNUC__ >= 2 -#define __sigemptyset(set) \ +# define __sigemptyset(set) \ (__extension__ ({ int __cnt = _SIGSET_NWORDS; \ sigset_t *__set = (set); \ while (--__cnt >= 0) __set->__val[__cnt] = 0; \ 0; })) -#define __sigfillset(set) \ +# 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; })) +# 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 |