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SYNC_VOLUME_NP(3)        BSD Library Functions Manual        SYNC_VOLUME_NP(3)

NAME
     sync_volume_np -- Sync a mounted filesystem

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     sync_volume_np(const char *path, int flags);

     int
     fsync_volume_np(int fd, int flags);

DESCRIPTION
     The sync_volume_np() function causes data and metadata on the filesystem containing path to be synced
     to disk; this may be any file or directory on that filesystem.  The fsync_volume_np() does the same
     thing, but using an open file descriptor for that filesystem.  Both functions take a flags parameter,
     with the currently-defined options:

           SYNC_VOLUME_FULLSYNC  Request that the data and metadata be written to the disk hardware; if not
                                 set, then the hardware may keep it in cache.

           SYNC_VOLUME_WAIT      Wait for the data and metadata to be written; if not set, then it will
                                 return when the requests have been made.

RETURN VALUES
     Both functions return 0 on success, and a non-zero error code on error.

ERRORS
     The fsync_volume_np() function may return EBADF if the fd parameter is not a valid, open file descrip-tor. descriptor.
     tor.  The sync_volume_np() function may return errors if:

     [EACCES]      Search permission is denied for a component of the path prefix.

     [EIO]         An I/O error occurs while reading from or writing to the file system.

     [ELOOP]       Too many symbolic links are encountered in translating the pathname.  This is taken to be
                   indicative of a looping symbolic link.

     [ENAMETOOLONG]
                   A component of a pathname exceeds {NAME_MAX} characters, or an entire path name exceeds
                   {PATH_MAX} characters.

     [ENOENT]      The named file does not exist.

     [ENOTDIR]     A component of the path prefix is not a directory.

BSD                            October 11, 2013                            BSD