1 /* Send a message to a message queue with a timeout. Linux version.
2 Copyright (C) 2017-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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/>. */
18
19 #include <mqueue.h>
20 #include <sysdep-cancel.h>
21 #include <shlib-compat.h>
22
23 /* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
24 on full message queue if ABS_TIMEOUT expires. */
25 int
___mq_timedsend_time64(mqd_t mqdes,const char * msg_ptr,size_t msg_len,unsigned int msg_prio,const struct __timespec64 * abs_timeout)26 ___mq_timedsend_time64 (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
27 unsigned int msg_prio,
28 const struct __timespec64 *abs_timeout)
29 {
30 # ifndef __NR_mq_timedsend_time64
31 # define __NR_mq_timedsend_time64 __NR_mq_timedsend
32 # endif
33
34 #ifdef __ASSUME_TIME64_SYSCALLS
35 return SYSCALL_CANCEL (mq_timedsend_time64, mqdes, msg_ptr, msg_len,
36 msg_prio, abs_timeout);
37 #else
38 bool need_time64 = abs_timeout != NULL
39 && !in_time_t_range (abs_timeout->tv_sec);
40 if (need_time64)
41 {
42 int r = SYSCALL_CANCEL (mq_timedsend_time64, mqdes, msg_ptr, msg_len,
43 msg_prio, abs_timeout);
44 if (r == 0 || errno != ENOSYS)
45 return r;
46 __set_errno (EOVERFLOW);
47 return -1;
48 }
49
50 struct timespec ts32, *pts32 = NULL;
51 if (abs_timeout != NULL)
52 {
53 ts32 = valid_timespec64_to_timespec (*abs_timeout);
54 pts32 = &ts32;
55 }
56
57 return SYSCALL_CANCEL (mq_timedsend, mqdes, msg_ptr, msg_len, msg_prio,
58 pts32);
59 #endif
60 }
61
62 #if __TIMESIZE == 64
63 versioned_symbol (libc, ___mq_timedsend_time64, mq_timedsend, GLIBC_2_34);
64 libc_hidden_ver (___mq_timedsend_time64, __mq_timedsend)
65 # ifndef SHARED
66 strong_alias (___mq_timedsend_time64, __mq_timedsend)
67 # endif
68 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
69 compat_symbol (librt, ___mq_timedsend_time64, mq_timedsend, GLIBC_2_3_4);
70 # endif
71
72 #else /* __TIMESIZE != 64 */
73 libc_hidden_ver (___mq_timedsend_time64, __mq_timedsend_time64)
74 versioned_symbol (libc, ___mq_timedsend_time64, __mq_timedsend_time64,
75 GLIBC_2_34);
76
77 int
___mq_timedsend(mqd_t mqdes,const char * msg_ptr,size_t msg_len,unsigned int msg_prio,const struct timespec * abs_timeout)78 ___mq_timedsend (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
79 unsigned int msg_prio, const struct timespec *abs_timeout)
80 {
81 struct __timespec64 ts64;
82 if (abs_timeout != NULL)
83 ts64 = valid_timespec_to_timespec64 (*abs_timeout);
84
85 return __mq_timedsend_time64 (mqdes, msg_ptr, msg_len, msg_prio,
86 abs_timeout != NULL ? &ts64 : NULL);
87 }
88 versioned_symbol (libc, ___mq_timedsend, mq_timedsend, GLIBC_2_34);
89 libc_hidden_ver (___mq_timedsend, __mq_timedsend)
90 # ifndef SHARED
91 strong_alias (___mq_timedsend, __mq_timedsend)
92 # endif
93 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_4, GLIBC_2_34)
94 compat_symbol (librt, ___mq_timedsend, mq_timedsend, GLIBC_2_3_4);
95 # endif
96
97 #endif /* __TIMESIZE != 64 */
98