mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
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
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/* Copyright (C) 2006-2019 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
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* We define a special synchronization primitive for AIO. POSIX
|
|
conditional variables would be ideal but the pthread_cond_*wait
|
|
operations do not return on EINTR. This is a requirement for
|
|
correct aio_suspend and lio_listio implementations. */
|
|
|
|
#include <assert.h>
|
|
#include <nptl/pthreadP.h>
|
|
#include <futex-internal.h>
|
|
|
|
#define DONT_NEED_AIO_MISC_COND 1
|
|
|
|
#define AIO_MISC_NOTIFY(waitlist) \
|
|
do { \
|
|
if (*waitlist->counterp > 0 && --*waitlist->counterp == 0) \
|
|
futex_wake ((unsigned int *) waitlist->counterp, 1, FUTEX_PRIVATE); \
|
|
} while (0)
|
|
|
|
#define AIO_MISC_WAIT(result, futex, timeout, cancel) \
|
|
do { \
|
|
volatile unsigned int *futexaddr = &futex; \
|
|
unsigned int oldval = futex; \
|
|
\
|
|
if (oldval != 0) \
|
|
{ \
|
|
pthread_mutex_unlock (&__aio_requests_mutex); \
|
|
\
|
|
int status; \
|
|
do \
|
|
{ \
|
|
if (cancel) \
|
|
status = futex_reltimed_wait_cancelable ( \
|
|
(unsigned int *) futexaddr, oldval, timeout, FUTEX_PRIVATE); \
|
|
else \
|
|
status = futex_reltimed_wait ((unsigned int *) futexaddr, \
|
|
oldval, timeout, FUTEX_PRIVATE); \
|
|
if (status != EAGAIN) \
|
|
break; \
|
|
\
|
|
oldval = *futexaddr; \
|
|
} \
|
|
while (oldval != 0); \
|
|
\
|
|
if (status == EINTR) \
|
|
result = EINTR; \
|
|
else if (status == ETIMEDOUT) \
|
|
result = EAGAIN; \
|
|
else \
|
|
assert (status == 0 || status == EAGAIN); \
|
|
\
|
|
pthread_mutex_lock (&__aio_requests_mutex); \
|
|
} \
|
|
} while (0)
|
|
|
|
#include_next <aio_misc.h>
|