src/common/compat/fcntl.h

   1 /*
   2  * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the Free
   6  * Software Foundation; only version 2 of the License.
   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 with
  14  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  15  * Place - Suite 330, Boston, MA  02111-1307, USA.
  16  */
  17
  18 #ifndef _COMPAT_FCNTL_H
  19 #define _COMPAT_FCNTL_H
  20
  21 #include <fcntl.h>
  22
  23 #define lttng_sync_file_range(fd, offset, nbytes, flags) \
  24         compat_sync_file_range(fd, offset, nbytes, flags)
  25
  26 #ifdef __linux__
  27
  28 int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
  29                 unsigned int flags)
  30 {
  31         return sync_file_range(fd, offset, nbytes, flags);
  32 }
  33
  34 #elif __FreeBSD__
  35
  36 /*
  37  * Possible flags under Linux. Simply nullify them and avoid wrapper.
  38  */
  39 #define SYNC_FILE_RANGE_WAIT_AFTER    0
  40 #define SYNC_FILE_RANGE_WAIT_BEFORE   0
  41 #define SYNC_FILE_RANGE_WRITE         0
  42
  43 typedef long int off64_t;
  44 typedef off64_t loff_t;
  45
  46 int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
  47                 unsigned int flags)
  48 {
  49         return 0;
  50 }
  51
  52 /*
  53  * Possible flags under Linux. Simply nullify them and avoid wrappers.
  54  */
  55 #define SPLICE_F_MOVE       0
  56 #define SPLICE_F_NONBLOCK   0
  57 #define SPLICE_F_MORE       0
  58 #define SPLICE_F_GIFT       0
  59
  60 ssize_t splice(int fd_in, loff_t *off_in, int fd_out,
  61                 loff_t *off_out, size_t len, unsigned int flags)
  62 {
  63         return -ENOSYS;
  64 }
  65
  66 #else
  67 #error "Please add support for your OS into compat/fcntl.h."
  68 #endif /* __linux__ , __FreeBSD__ */
  69
  70 #endif /* _COMPAT_FCNTL_H */