glibc/sysdeps/pthread/aio_misc.h
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
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
2019-09-07 02:43:31 -07:00

123 lines
3.1 KiB
C

/* Copyright (C) 1997-2019 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/>. */
#ifndef _AIO_MISC_H
#define _AIO_MISC_H 1
#include <aio.h>
#include <pthread.h>
/* Extend the operation enum. */
enum
{
LIO_DSYNC = LIO_NOP + 1,
LIO_SYNC,
LIO_READ64 = LIO_READ | 128,
LIO_WRITE64 = LIO_WRITE | 128
};
/* Union of the two request types. */
typedef union
{
struct aiocb aiocb;
struct aiocb64 aiocb64;
} aiocb_union;
/* Used to synchronize. */
struct waitlist
{
struct waitlist *next;
/* The next two fields is used in synchronous `lio_listio' operations. */
#ifndef DONT_NEED_AIO_MISC_COND
pthread_cond_t *cond;
#endif
int *result;
volatile unsigned int *counterp;
/* The next field is used in asynchronous `lio_listio' operations. */
struct sigevent *sigevp;
};
/* Status of a request. */
enum
{
no,
queued,
yes,
allocated,
done
};
/* Used to queue requests.. */
struct requestlist
{
int running;
struct requestlist *last_fd;
struct requestlist *next_fd;
struct requestlist *next_prio;
struct requestlist *next_run;
/* Pointer to the actual data. */
aiocb_union *aiocbp;
/* List of waiting processes. */
struct waitlist *waiting;
};
/* Lock for global I/O list of requests. */
extern pthread_mutex_t __aio_requests_mutex attribute_hidden;
/* Enqueue request. */
extern struct requestlist *__aio_enqueue_request (aiocb_union *aiocbp,
int operation)
attribute_hidden;
/* Find request entry for given AIO control block. */
extern struct requestlist *__aio_find_req (aiocb_union *elem) attribute_hidden;
/* Find request entry for given file descriptor. */
extern struct requestlist *__aio_find_req_fd (int fildes) attribute_hidden;
/* Remove request from the list. */
extern void __aio_remove_request (struct requestlist *last,
struct requestlist *req, int all)
attribute_hidden;
/* Release the entry for the request. */
extern void __aio_free_request (struct requestlist *req) attribute_hidden;
/* Notify initiator of request and tell this everybody listening. */
extern void __aio_notify (struct requestlist *req) attribute_hidden;
/* Notify initiator of request. */
extern int __aio_notify_only (struct sigevent *sigev) attribute_hidden;
/* Send the signal. */
extern int __aio_sigqueue (int sig, const union sigval val, pid_t caller_pid)
attribute_hidden;
#endif /* aio_misc.h */