1 /* Receive a message from a message queue with a timeout. Linux version.
2 Copyright (C) 2017-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
20 #include <sysdep-cancel.h>
21 #include <shlib-compat.h>
23 /* Receive the oldest from highest priority messages in message queue
24 MQDES, stop waiting if ABS_TIMEOUT expires. */
26 ___mq_timedreceive_time64 (mqd_t mqdes
, char *__restrict msg_ptr
, size_t msg_len
,
27 unsigned int *__restrict msg_prio
,
28 const struct __timespec64
*__restrict abs_timeout
)
30 #ifndef __NR_mq_timedreceive_time64
31 # define __NR_mq_timedreceive_time64 __NR_mq_timedreceive
34 #ifdef __ASSUME_TIME64_SYSCALLS
35 return SYSCALL_CANCEL (mq_timedreceive_time64
, mqdes
, msg_ptr
, msg_len
,
36 msg_prio
, abs_timeout
);
38 bool need_time64
= abs_timeout
!= NULL
39 && !in_int32_t_range (abs_timeout
->tv_sec
);
42 int r
= SYSCALL_CANCEL (mq_timedreceive_time64
, mqdes
, msg_ptr
, msg_len
,
43 msg_prio
, abs_timeout
);
44 if (r
>= 0 || errno
!= ENOSYS
)
46 __set_errno (EOVERFLOW
);
50 struct timespec ts32
, *pts32
= NULL
;
51 if (abs_timeout
!= NULL
)
53 ts32
= valid_timespec64_to_timespec (*abs_timeout
);
57 return SYSCALL_CANCEL (mq_timedreceive
, mqdes
, msg_ptr
, msg_len
, msg_prio
,
63 versioned_symbol (libc
, ___mq_timedreceive_time64
, mq_timedreceive
, GLIBC_2_34
);
64 libc_hidden_ver (___mq_timedreceive_time64
, __mq_timedreceive
)
66 strong_alias (___mq_timedreceive_time64
, __mq_timedreceive
)
68 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
69 compat_symbol (librt
, ___mq_timedreceive_time64
, mq_timedreceive
, GLIBC_2_3_4
);
72 #else /* __TIMESIZE != 64 */
73 libc_hidden_ver (___mq_timedreceive_time64
, __mq_timedreceive_time64
)
74 versioned_symbol (libc
, ___mq_timedreceive_time64
, __mq_timedreceive_time64
,
78 ___mq_timedreceive (mqd_t mqdes
, char *__restrict msg_ptr
, size_t msg_len
,
79 unsigned int *__restrict msg_prio
,
80 const struct timespec
*__restrict abs_timeout
)
82 struct __timespec64 ts64
;
83 if (abs_timeout
!= NULL
)
84 ts64
= valid_timespec_to_timespec64 (*abs_timeout
);
86 return __mq_timedreceive_time64 (mqdes
, msg_ptr
, msg_len
, msg_prio
,
87 abs_timeout
!= NULL
? &ts64
: NULL
);
89 versioned_symbol (libc
, ___mq_timedreceive
, mq_timedreceive
, GLIBC_2_34
);
90 libc_hidden_ver (___mq_timedreceive
, __mq_timedreceive
)
92 strong_alias (___mq_timedreceive
, __mq_timedreceive
)
94 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
95 compat_symbol (librt
, ___mq_timedreceive
, mq_timedreceive
, GLIBC_2_3_4
);
98 #endif /* __TIMESIZE != 64 */