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* po/el.po: Update from translation team. 1999-02-09 Andreas Jaeger <aj@arthur.rhein-neckar.de> * intl/locale.alias: Fix slovenian entry [PR libc/948]. 1999-02-09 Andreas Jaeger <aj@arthur.rhein-neckar.de> * elf/sprof.c: assert.h isn't used anymore, remove inclusion. * inet/ruserpass.c: Likewise. * locale/programs/stringtrans.c: Likewise. * locale/programs/localedef.c: Likewise. * nscd/grpcache.c: Likewise. * nss/nss_files/files-XXX.c: Likewise. * stdlib/canonicalize.c: Likewise. * sysdeps/posix/sigwait.c: Likewise. 1999-02-09 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sunrpc/pmap_rmt.c (clnt_broadcast): We need 32 bit comparison even on 64 bit platforms. * sunrpc/clnt_tcp.c (clnttcp_call): Likewise. Patch by Loic Prylli <Loic.Prylli@ens-lyon.fr>. 1999-02-09 Ulrich Drepper <drepper@cygnus.com>
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* Implementation of sigwait function from POSIX.1c.
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Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <signal.h>
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#include <stddef.h> /* For NULL. */
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/* This is our dummy signal handler we use here. */
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static void ignore_signal (int sig);
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/* Place where to remember which signal we got. Please note that this
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implementation cannot be used for the threaded libc. The
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libpthread must provide an own version. */
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static int was_sig;
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int
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__sigwait (const sigset_t *set, int *sig)
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{
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sigset_t tmp_mask;
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struct sigaction saved[NSIG];
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struct sigaction action;
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int save_errno;
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int this;
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/* Prepare set. */
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__sigfillset (&tmp_mask);
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/* Unblock all signals in the SET and register our nice handler. */
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action.sa_handler = ignore_signal;
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action.sa_flags = 0;
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__sigfillset (&action.sa_mask); /* Block all signals for handler. */
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/* Make sure we recognize error conditions by setting WAS_SIG to a
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value which does not describe a legal signal number. */
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was_sig = -1;
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for (this = 0; this < NSIG; ++this)
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if (__sigismember (set, this))
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{
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/* Unblock this signal. */
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__sigdelset (&tmp_mask, this);
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/* Register temporary action handler. */
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if (__sigaction (this, &action, &saved[this]) != 0)
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goto restore_handler;
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}
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/* Now we can wait for signals. */
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__sigsuspend (&tmp_mask);
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restore_handler:
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save_errno = errno;
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while (--this >= 0)
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if (__sigismember (set, this))
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/* We ignore errors here since we must restore all handlers. */
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__sigaction (this, &saved[this], NULL);
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__set_errno (save_errno);
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/* Store the result and return. */
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*sig = was_sig;
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return was_sig == -1 ? -1 : 0;
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}
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weak_alias (__sigwait, sigwait)
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static void
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ignore_signal (int sig)
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{
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/* Remember the signal. */
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was_sig = sig;
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}
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