20 Jun 2019
gfs_pio_datasync 3 Gfarm
gfs_pio_datasync output a file's data on memroy to disk

    #include <gfarm/gfarm.h>

`gfarm_error_t gfs_pio_datasync` GFS_File gf

## DESCRIPTION

The function `gfs_pio_datasync` flushes data on memory of the gf, and waits for the I/O to complete before returning. It does not update metadtata stat information, while another function `gfs_pio_sync` updates the metadata in addition to the contents.

## RETURN VALUES

`GFARM_ERR_NO_ERROR`

  The function terminated successfully.

`GFARM_ERR_NO_MEMORY`

  Insufficient memory was available.

Others

  An error except the above occurred. The reason is shown by gfarm_error_string 3.

## SEE ALSO

gfs_pio_sync 3, gfs_pio_create 3, gfs_pio_open 3, gfs_pio_write 3, gfs_pio_flush 3