| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License, version 2 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _COMPAT_FCNTL_H |
| 19 | #define _COMPAT_FCNTL_H |
| 20 | |
| 21 | #include <fcntl.h> |
| 22 | #include <errno.h> |
| 23 | #include <sys/types.h> |
| 24 | |
| 25 | #if (defined(__FreeBSD__) || defined(__CYGWIN__)) |
| 26 | typedef long long off64_t; |
| 27 | #endif |
| 28 | |
| 29 | #if (defined(__FreeBSD__) || defined(__sun__)) |
| 30 | typedef off64_t loff_t; |
| 31 | #endif |
| 32 | |
| 33 | #ifdef __linux__ |
| 34 | extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes, |
| 35 | unsigned int flags); |
| 36 | #define lttng_sync_file_range(fd, offset, nbytes, flags) \ |
| 37 | compat_sync_file_range(fd, offset, nbytes, flags) |
| 38 | |
| 39 | #endif /* __linux__ */ |
| 40 | |
| 41 | #if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__)) |
| 42 | /* |
| 43 | * Possible flags under Linux. Simply nullify them and avoid wrapper. |
| 44 | */ |
| 45 | #define SYNC_FILE_RANGE_WAIT_AFTER 0 |
| 46 | #define SYNC_FILE_RANGE_WAIT_BEFORE 0 |
| 47 | #define SYNC_FILE_RANGE_WRITE 0 |
| 48 | |
| 49 | static inline int lttng_sync_file_range(int fd, off64_t offset, |
| 50 | off64_t nbytes, unsigned int flags) |
| 51 | { |
| 52 | return -ENOSYS; |
| 53 | } |
| 54 | #endif |
| 55 | |
| 56 | #if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__)) |
| 57 | /* |
| 58 | * Possible flags under Linux. Simply nullify them and avoid wrappers. |
| 59 | */ |
| 60 | #define SPLICE_F_MOVE 0 |
| 61 | #define SPLICE_F_NONBLOCK 0 |
| 62 | #define SPLICE_F_MORE 0 |
| 63 | #define SPLICE_F_GIFT 0 |
| 64 | |
| 65 | static inline ssize_t splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, |
| 66 | size_t len, unsigned int flags) |
| 67 | { |
| 68 | return -ENOSYS; |
| 69 | } |
| 70 | #endif |
| 71 | |
| 72 | #ifdef __FreeBSD__ |
| 73 | #define POSIX_FADV_DONTNEED 0 |
| 74 | |
| 75 | static inline int posix_fadvise(int fd, off_t offset, off_t len, int advice) |
| 76 | { |
| 77 | return -ENOSYS; |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #if !(defined(__linux__) || defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__) || defined(__APPLE__)) |
| 82 | #error "Please add support for your OS." |
| 83 | #endif /* __linux__ , __FreeBSD__, __CYGWIN__, __sun__, __APPLE__ */ |
| 84 | |
| 85 | #endif /* _COMPAT_FCNTL_H */ |