mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
47f24c21ee
A new build flag, _TIME_BITS, enables the usage of the newer 64-bit
time symbols for legacy ABI (where 32-bit time_t is default). The 64
bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is
also used.
Different than LFS support, the y2038 symbols are added only for the
required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32,
mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with
64-bit time support are unchanged, both for symbol and types
redirection.
On Linux the full 64-bit time support requires a minimum of kernel
version v5.1. Otherwise, the 32-bit fallbacks are used and might
results in error with overflow return code (EOVERFLOW).
The i686-gnu does not yet support 64-bit time.
This patch exports following rediretions to support 64-bit time:
* libc:
adjtime
adjtimex
clock_adjtime
clock_getres
clock_gettime
clock_nanosleep
clock_settime
cnd_timedwait
ctime
ctime_r
difftime
fstat
fstatat
futimens
futimes
futimesat
getitimer
getrusage
gettimeofday
gmtime
gmtime_r
localtime
localtime_r
lstat_time
lutimes
mktime
msgctl
mtx_timedlock
nanosleep
nanosleep
ntp_gettime
ntp_gettimex
ppoll
pselec
pselect
pthread_clockjoin_np
pthread_cond_clockwait
pthread_cond_timedwait
pthread_mutex_clocklock
pthread_mutex_timedlock
pthread_rwlock_clockrdlock
pthread_rwlock_clockwrlock
pthread_rwlock_timedrdlock
pthread_rwlock_timedwrlock
pthread_timedjoin_np
recvmmsg
sched_rr_get_interval
select
sem_clockwait
semctl
semtimedop
sem_timedwait
setitimer
settimeofday
shmctl
sigtimedwait
stat
thrd_sleep
time
timegm
timerfd_gettime
timerfd_settime
timespec_get
utime
utimensat
utimes
utimes
wait3
wait4
* librt:
aio_suspend
mq_timedreceive
mq_timedsend
timer_gettime
timer_settime
* libanl:
gai_suspend
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
121 lines
4.5 KiB
C
121 lines
4.5 KiB
C
/* Copyright (C) 2004-2021 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 _MQUEUE_H
|
|
#define _MQUEUE_H 1
|
|
|
|
#include <features.h>
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
#include <bits/types/sigevent_t.h>
|
|
#include <bits/types/struct_timespec.h>
|
|
/* Get the definition of mqd_t and struct mq_attr. */
|
|
#include <bits/mqueue.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* Establish connection between a process and a message queue NAME and
|
|
return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
|
|
the type of access used. If O_CREAT is on OFLAG, the third argument is
|
|
taken as a `mode_t', the mode of the created message queue, and the fourth
|
|
argument is taken as `struct mq_attr *', pointer to message queue
|
|
attributes. If the fourth argument is NULL, default attributes are
|
|
used. */
|
|
extern mqd_t mq_open (const char *__name, int __oflag, ...)
|
|
__THROW __nonnull ((1));
|
|
|
|
/* Removes the association between message queue descriptor MQDES and its
|
|
message queue. */
|
|
extern int mq_close (mqd_t __mqdes) __THROW;
|
|
|
|
/* Query status and attributes of message queue MQDES. */
|
|
extern int mq_getattr (mqd_t __mqdes, struct mq_attr *__mqstat)
|
|
__THROW __nonnull ((2));
|
|
|
|
/* Set attributes associated with message queue MQDES and if OMQSTAT is
|
|
not NULL also query its old attributes. */
|
|
extern int mq_setattr (mqd_t __mqdes,
|
|
const struct mq_attr *__restrict __mqstat,
|
|
struct mq_attr *__restrict __omqstat)
|
|
__THROW __nonnull ((2));
|
|
|
|
/* Remove message queue named NAME. */
|
|
extern int mq_unlink (const char *__name) __THROW __nonnull ((1));
|
|
|
|
/* Register notification issued upon message arrival to an empty
|
|
message queue MQDES. */
|
|
extern int mq_notify (mqd_t __mqdes, const struct sigevent *__notification)
|
|
__THROW;
|
|
|
|
/* Receive the oldest from highest priority messages in message queue
|
|
MQDES. */
|
|
extern ssize_t mq_receive (mqd_t __mqdes, char *__msg_ptr, size_t __msg_len,
|
|
unsigned int *__msg_prio) __nonnull ((2));
|
|
|
|
/* Add message pointed by MSG_PTR to message queue MQDES. */
|
|
extern int mq_send (mqd_t __mqdes, const char *__msg_ptr, size_t __msg_len,
|
|
unsigned int __msg_prio) __nonnull ((2));
|
|
|
|
#ifdef __USE_XOPEN2K
|
|
# ifndef __USE_TIME_BITS64
|
|
/* Receive the oldest from highest priority messages in message queue
|
|
MQDES, stop waiting if ABS_TIMEOUT expires. */
|
|
extern 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)
|
|
__nonnull ((2, 5));
|
|
|
|
/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
|
|
on full message queue if ABS_TIMEOUT expires. */
|
|
extern int mq_timedsend (mqd_t __mqdes, const char *__msg_ptr,
|
|
size_t __msg_len, unsigned int __msg_prio,
|
|
const struct timespec *__abs_timeout)
|
|
__nonnull ((2, 5));
|
|
# else
|
|
# ifdef __REDIRECT
|
|
extern int __REDIRECT (mq_timedreceive, (mqd_t __mqdes,
|
|
char *__restrict __msg_ptr,
|
|
size_t __msg_len,
|
|
unsigned int *__restrict __msg_prio,
|
|
const struct timespec *__restrict __abs_timeout),
|
|
__mq_timedreceive_time64)
|
|
__nonnull ((2, 5));
|
|
|
|
extern int __REDIRECT (mq_timedsend, (mqd_t __mqdes,
|
|
const char *__msg_ptr, size_t __msg_len,
|
|
unsigned int __msg_prio,
|
|
const struct timespec *__abs_timeout),
|
|
__mq_timedsend_time64)
|
|
__nonnull ((2, 5));
|
|
# else
|
|
# define mq_timedreceive __mq_timedreceive_time64
|
|
# define mq_timedsend __mq_timedsend_time64
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/* Define some inlines helping to catch common problems. */
|
|
#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \
|
|
&& defined __va_arg_pack_len
|
|
# include <bits/mqueue2.h>
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* mqueue.h */
|