mirror of
https://sourceware.org/git/glibc.git
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5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/* Copyright (C) 2002-2019 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, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <search.h>
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#include <sys/mman.h>
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#include "semaphoreP.h"
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struct walk_closure
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{
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sem_t *the_sem;
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struct inuse_sem *rec;
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};
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static void
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walker (const void *inodep, VISIT which, void *closure0)
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{
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struct walk_closure *closure = closure0;
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struct inuse_sem *nodep = *(struct inuse_sem **) inodep;
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if (nodep->sem == closure->the_sem)
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closure->rec = nodep;
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}
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int
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sem_close (sem_t *sem)
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{
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int result = 0;
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/* Get the lock. */
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lll_lock (__sem_mappings_lock, LLL_PRIVATE);
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/* Locate the entry for the mapping the caller provided. */
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struct inuse_sem *rec;
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{
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struct walk_closure closure = { .the_sem = sem, .rec = NULL };
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__twalk_r (__sem_mappings, walker, &closure);
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rec = closure.rec;
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}
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if (rec != NULL)
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{
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/* Check the reference counter. If it is going to be zero, free
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all the resources. */
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if (--rec->refcnt == 0)
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{
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/* Remove the record from the tree. */
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(void) __tdelete (rec, &__sem_mappings, __sem_search);
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result = munmap (rec->sem, sizeof (sem_t));
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free (rec);
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}
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}
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else
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{
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/* This is no valid semaphore. */
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result = -1;
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__set_errno (EINVAL);
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}
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/* Release the lock. */
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lll_unlock (__sem_mappings_lock, LLL_PRIVATE);
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return result;
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}
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