memcheck/tests/amd64-freebsd/posix_fadvise.c

   1 #include <fcntl.h>
   2 #include <stdio.h>
   3 #include <errno.h>
   4
   5 int main(void)
   6 {
   7     int fd = open("foo", O_RDWR|O_CREAT, 0666);
   8     if (fd < 0) return 1;
   9     posix_fadvise( fd, 0, 4096, POSIX_FADV_WILLNEED );
  10     posix_fadvise( fd, 0, 0, POSIX_FADV_NOREUSE );
  11
  12     int badfd = 42;
  13     posix_fadvise( badfd, 0, 4096, POSIX_FADV_WILLNEED );
  14
  15     int x;
  16     posix_fadvise(x,      1, 2, POSIX_FADV_NORMAL);
  17     posix_fadvise(badfd, x, 2, POSIX_FADV_NORMAL);
  18     posix_fadvise(badfd, 1, x, POSIX_FADV_NORMAL);
  19     posix_fadvise(badfd, 1, 2, x);
  20
  21     x = posix_fadvise(badfd
  22     , 1, 2, POSIX_FADV_NORMAL);
  23
  24     if (x != EBADF)
  25         fprintf(stderr, "Unexpected return value: %d\n", x);
  26 }
  27