fsync

NAME

       fsync  -  synchronize  a file's in-core state with that on
       disk

SYNOPSIS

       #include <unistd.h>

       int fsync(int fd);

DESCRIPTION

       fsync copies all in-core parts of a file to disk.

RETURN VALUE

       On success, zero is returned.  On error, -1  is  returned,
       and errno is set appropriately.

ERRORS

       EBADF   fd is not a valid open file descriptor.

       EROFS   EINVAL fd is bound to a special file which doesn't
               support synchronization.

       EIO     An error occurred during synchronization.

SEE ALSO

       bdflush(2), fsync(2), update(8), sync(8)