Replace explicit rcu_read_lock/unlock with lttng::urcu::read_lock_guard
[lttng-tools.git] / src / common / compat / fcntl.hpp
1 /*
2 * Copyright (C) 2011 David Goulet <dgoulet@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef _COMPAT_FCNTL_H
9 #define _COMPAT_FCNTL_H
10
11 #include <fcntl.h>
12 #include <sys/types.h>
13
14 #include <common/compat/errno.hpp>
15
16 #if (defined(__CYGWIN__))
17 typedef long long off64_t;
18 #endif
19
20 #if (defined(__FreeBSD__) || defined(__sun__))
21 typedef off64_t loff_t;
22 #endif
23
24 #ifdef __linux__
25 extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
26 unsigned int flags);
27 #define lttng_sync_file_range(fd, offset, nbytes, flags) \
28 compat_sync_file_range(fd, offset, nbytes, flags)
29
30 #endif /* __linux__ */
31
32 #if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__))
33 /*
34 * Possible flags under Linux. Simply nullify them and avoid wrapper.
35 */
36 #define SYNC_FILE_RANGE_WAIT_AFTER 0
37 #define SYNC_FILE_RANGE_WAIT_BEFORE 0
38 #define SYNC_FILE_RANGE_WRITE 0
39
40 static inline int lttng_sync_file_range(
41 int fd __attribute__((unused)),
42 off64_t offset __attribute__((unused)),
43 off64_t nbytes __attribute__((unused)),
44 unsigned int flags __attribute__((unused)))
45 {
46 return -ENOSYS;
47 }
48 #endif
49
50 #if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__))
51 /*
52 * Possible flags under Linux. Simply nullify them and avoid wrappers.
53 */
54 #define SPLICE_F_MOVE 0
55 #define SPLICE_F_NONBLOCK 0
56 #define SPLICE_F_MORE 0
57 #define SPLICE_F_GIFT 0
58
59 static inline ssize_t splice(
60 int fd_in __attribute__((unused)),
61 loff_t *off_in __attribute__((unused)),
62 int fd_out __attribute__((unused)),
63 loff_t *off_out __attribute__((unused)),
64 size_t len __attribute__((unused)),
65 unsigned int flags __attribute__((unused)))
66 {
67 return -ENOSYS;
68 }
69 #endif
70
71 #if !(defined(__linux__) || defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__) || defined(__APPLE__))
72 #error "Please add support for your OS."
73 #endif /* __linux__ , __FreeBSD__, __CYGWIN__, __sun__, __APPLE__ */
74
75 #endif /* _COMPAT_FCNTL_H */
This page took 0.031094 seconds and 4 git commands to generate.