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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.
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This file is part of the GNU C Library.
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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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/* We define a special synchronization primitive for AIO. POSIX
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conditional variables would be ideal but the pthread_cond_*wait
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operations do not return on EINTR. This is a requirement for
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correct aio_suspend and lio_listio implementations. */
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#include <assert.h>
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#include <nptl/pthreadP.h>
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#include <futex-internal.h>
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#define DONT_NEED_AIO_MISC_COND 1
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#define AIO_MISC_NOTIFY(waitlist) \
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do { \
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if (*waitlist->counterp > 0 && --*waitlist->counterp == 0) \
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futex_wake ((unsigned int *) waitlist->counterp, 1, FUTEX_PRIVATE); \
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} while (0)
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#define AIO_MISC_WAIT(result, futex, timeout, cancel) \
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do { \
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volatile unsigned int *futexaddr = &futex; \
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unsigned int oldval = futex; \
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\
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if (oldval != 0) \
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{ \
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pthread_mutex_unlock (&__aio_requests_mutex); \
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\
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int status; \
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do \
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{ \
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if (cancel) \
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status = futex_reltimed_wait_cancelable ( \
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(unsigned int *) futexaddr, oldval, timeout, FUTEX_PRIVATE); \
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else \
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status = futex_reltimed_wait ((unsigned int *) futexaddr, \
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oldval, timeout, FUTEX_PRIVATE); \
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if (status != EAGAIN) \
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break; \
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\
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oldval = *futexaddr; \
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} \
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while (oldval != 0); \
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\
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if (status == EINTR) \
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result = EINTR; \
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else if (status == ETIMEDOUT) \
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result = EAGAIN; \
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else \
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assert (status == 0 || status == EAGAIN); \
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\
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pthread_mutex_lock (&__aio_requests_mutex); \
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} \
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} while (0)
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#include_next <aio_misc.h>
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