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09402f5bc1
2003-03-25 Ulrich Drepper <drepper@redhat.com> * csu/tst-atomic.c: Adjust tests to what atomic_add_negative and atomic_add_zero were supposed to do. * include/atomic.h: Adjust atomic_add_negative and atomic_add_zero to x86 behavior. * sysdeps/generic/bits/typesizes.h (__TIMER_T_TYPE): Define as void*. This matches the new timer implementation. * sysdeps/unix/sysv/linux/bits/siginfo.h (struct siginfo): Adjust timer info for what the kernel provides these days. (struct sigevent): Add _tid field. Define SIGEV_THREAD_ID. * Versions.def (librt): Add GLIBC_2.3.3. * abilist/libpthread.abilist: Update for nptl.
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Copyright (C) 2002, 2003 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@redhat.com>, 2002.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <signal.h>
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#include <pthreadP.h>
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#include <sysdep.h>
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int
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pthread_sigmask (how, newmask, oldmask)
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int how;
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const sigset_t *newmask;
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sigset_t *oldmask;
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{
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sigset_t local_newmask;
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/* The only thing we have to make sure here is that SIGCANCEL is not
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blocked and that SIGTIMER is not unblocked. */
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if (newmask != NULL)
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{
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if (__builtin_expect (__sigismember (newmask, SIGCANCEL), 0))
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{
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local_newmask = *newmask;
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__sigdelset (&local_newmask, SIGCANCEL);
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newmask = &local_newmask;
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}
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if (__builtin_expect (__sigismember (newmask, SIGTIMER), 0))
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{
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if (how == SIG_UNBLOCK)
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{
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if (newmask != &local_newmask)
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local_newmask = *newmask;
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__sigdelset (&local_newmask, SIGTIMER);
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newmask = &local_newmask;
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}
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}
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else
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{
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if (how == SIG_SETMASK)
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{
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if (newmask != &local_newmask)
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local_newmask = *newmask;
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__sigaddset (&local_newmask, SIGTIMER);
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newmask = &local_newmask;
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}
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}
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}
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#ifdef INTERNAL_SYSCALL
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/* We know that realtime signals are available if NPTL is used. */
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INTERNAL_SYSCALL_DECL (err);
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int result = INTERNAL_SYSCALL (rt_sigprocmask, err, 4, how, newmask,
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oldmask, _NSIG / 8);
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return (INTERNAL_SYSCALL_ERROR_P (result, err)
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? INTERNAL_SYSCALL_ERRNO (result, err)
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: 0);
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#else
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return sigprocmask (how, newmask, oldmask) == -1 ? errno : 0;
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#endif
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}
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