mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-10 13:20:06 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/* Receive a message from a message queue with a timeout. Linux version.
|
|
Copyright (C) 2017-2022 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/>. */
|
|
|
|
#include <mqueue.h>
|
|
#include <sysdep-cancel.h>
|
|
#include <shlib-compat.h>
|
|
|
|
/* Receive the oldest from highest priority messages in message queue
|
|
MQDES, stop waiting if ABS_TIMEOUT expires. */
|
|
ssize_t
|
|
___mq_timedreceive_time64 (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
|
|
unsigned int *__restrict msg_prio,
|
|
const struct __timespec64 *__restrict abs_timeout)
|
|
{
|
|
#ifndef __NR_mq_timedreceive_time64
|
|
# define __NR_mq_timedreceive_time64 __NR_mq_timedreceive
|
|
#endif
|
|
|
|
#ifdef __ASSUME_TIME64_SYSCALLS
|
|
return SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len,
|
|
msg_prio, abs_timeout);
|
|
#else
|
|
bool need_time64 = abs_timeout != NULL
|
|
&& !in_time_t_range (abs_timeout->tv_sec);
|
|
if (need_time64)
|
|
{
|
|
int r = SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len,
|
|
msg_prio, abs_timeout);
|
|
if (r == 0 || errno != ENOSYS)
|
|
return r;
|
|
__set_errno (EOVERFLOW);
|
|
return -1;
|
|
}
|
|
|
|
struct timespec ts32, *pts32 = NULL;
|
|
if (abs_timeout != NULL)
|
|
{
|
|
ts32 = valid_timespec64_to_timespec (*abs_timeout);
|
|
pts32 = &ts32;
|
|
}
|
|
|
|
return SYSCALL_CANCEL (mq_timedreceive, mqdes, msg_ptr, msg_len, msg_prio,
|
|
pts32);
|
|
#endif
|
|
}
|
|
|
|
#if __TIMESIZE == 64
|
|
versioned_symbol (libc, ___mq_timedreceive_time64, mq_timedreceive, GLIBC_2_34);
|
|
libc_hidden_ver (___mq_timedreceive_time64, __mq_timedreceive)
|
|
# ifndef SHARED
|
|
strong_alias (___mq_timedreceive_time64, __mq_timedreceive)
|
|
# endif
|
|
# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
|
|
compat_symbol (librt, ___mq_timedreceive_time64, mq_timedreceive, GLIBC_2_3_4);
|
|
# endif
|
|
|
|
#else /* __TIMESIZE != 64 */
|
|
libc_hidden_ver (___mq_timedreceive_time64, __mq_timedreceive_time64)
|
|
versioned_symbol (libc, ___mq_timedreceive_time64, __mq_timedreceive_time64,
|
|
GLIBC_2_34);
|
|
|
|
ssize_t
|
|
___mq_timedreceive (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
|
|
unsigned int *__restrict msg_prio,
|
|
const struct timespec *__restrict abs_timeout)
|
|
{
|
|
struct __timespec64 ts64;
|
|
if (abs_timeout != NULL)
|
|
ts64 = valid_timespec_to_timespec64 (*abs_timeout);
|
|
|
|
return __mq_timedreceive_time64 (mqdes, msg_ptr, msg_len, msg_prio,
|
|
abs_timeout != NULL ? &ts64 : NULL);
|
|
}
|
|
versioned_symbol (libc, ___mq_timedreceive, mq_timedreceive, GLIBC_2_34);
|
|
libc_hidden_ver (___mq_timedreceive, __mq_timedreceive)
|
|
# ifndef SHARED
|
|
strong_alias (___mq_timedreceive, __mq_timedreceive)
|
|
# endif
|
|
# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
|
|
compat_symbol (librt, ___mq_timedreceive, mq_timedreceive, GLIBC_2_3_4);
|
|
# endif
|
|
|
|
#endif /* __TIMESIZE != 64 */
|