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NAME

       gfs_pio_datasync - output a file’s data on memroy to disk

SYNOPSIS

       #include <gfarm/gfarm.h>

       char *gfs_pio_datasync (GFS_File gf);

DESCRIPTION

       The  function  gfs_pio_datasync  copies  data  on memory of the gf, and
       waits for the I/O to complete before returning.  It  does  nod   update
       metadtata stat information, while another function gfs_pio_sync updates
       the metadata in addition to the contents.

RETURN VALUES

       NULL   The function terminated successfully.

       GFARM_ERR_NO_MEMORY
              Insufficient memory was available.

       Others An error except the above occurred.  The reason is shown by  its
              pointed strings.

SEE ALSO

       gfs_pio_sync(3),  gfs_pio_create(3), gfs_pio_open(3), gfs_pio_write(3),
       gfs_pio_flush(3)