preadv.c 1.1 KB

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  1. /* Copyright (C) 2009-2016 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #include <sys/uio.h>
  15. #include <sys/syscall.h>
  16. #include <unistd.h>
  17. #ifdef __NR_preadv
  18. ssize_t
  19. preadv (int fd, const struct iovec *vector, int count, off_t offset)
  20. {
  21. unsigned long pos_l, pos_h;
  22. pos_h = (unsigned long)((long long)offset >> 32);
  23. pos_l = (unsigned long)((long long)offset);
  24. return INLINE_SYSCALL (preadv, 5, fd, vector, count, pos_l, pos_h);
  25. }
  26. #endif