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| author | Roland McGrath <roland@gnu.org> | 2001-07-23 07:20:28 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2001-07-23 07:20:28 +0000 |
| commit | 393aec52440dc47aab9971616b0d7521b8a4f431 (patch) | |
| tree | 35da27d41091c9ec8cd2ca78f1a19f9ece297769 /sysdeps/generic | |
| parent | 5d83494fadbcd3730eb1e6e1ff19ddefad4072ce (diff) | |
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* hurd/hurdsig.c (_hurd_internal_post_signal): Support SA_RESETHAND
and SA_NODEFER options. Spurred to action by Igor Khavkine.
* sysdeps/generic/bits/sigaction.h [__USE_UNIX98 || __USE_MISC]
(SA_NODEFER, SA_RESETHAND): New macros, same bit values as FreeBSD.
[__USE_MISC] (SA_INTERRUPT): New macro, value 0.
[__USE_MISC] (SA_NOMASK, SA_ONESHOT, SA_STACK): New macros, aliases
as in other sysdeps versions of this file.
* sysdeps/generic/bits/sigaction.h (struct sigaction): Use a union
and provide sa_handler and sa_sigaction member names as macros, as
done in other sysdeps versions of this file.
Suggested by Igor Khavkine <i_khavki@alcor.concordia.ca>.
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/bits/sigaction.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/sysdeps/generic/bits/sigaction.h b/sysdeps/generic/bits/sigaction.h index 67981e8a2b..e23a96cd9d 100644 --- a/sysdeps/generic/bits/sigaction.h +++ b/sysdeps/generic/bits/sigaction.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1991,92,96,97,98,2001 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 @@ -30,7 +30,12 @@ struct sigaction { /* Signal handler. */ - __sighandler_t sa_handler; + union { + __sighandler_t sa_handler; + void (*sa_sigaction) (int, siginfo_t *, void *); + } __sigaction_handler; +# define sa_handler __sigaction_handler.sa_handler +# define sa_sigaction __sigaction_handler.sa_sigaction /* Additional set of signals to be blocked. */ __sigset_t sa_mask; @@ -43,9 +48,21 @@ struct sigaction #if defined __USE_UNIX98 || defined __USE_MISC # define SA_ONSTACK 0x0001 /* Take signal on signal stack. */ # define SA_RESTART 0x0002 /* Restart syscall on signal return. */ +# define SA_NODEFER 0x0010 /* Don't automatically block the signal when + its handler is being executed. */ +# define SA_RESETHAND 0x0004 /* Reset to SIG_DFL on entry to handler. */ #endif #define SA_NOCLDSTOP 0x0008 /* Don't send SIGCHLD when children stop. */ +#ifdef __USE_MISC +# define SA_INTERRUPT 0 /* Historical no-op ("not SA_RESTART"). */ + +/* Some aliases for the SA_ constants. */ +# define SA_NOMASK SA_NODEFER +# define SA_ONESHOT SA_RESETHAND +# define SA_STACK SA_ONSTACK +#endif + /* Values for the HOW argument to `sigprocmask'. */ #define SIG_BLOCK 1 /* Block signals. */ |