gfs_pio_datasync

## Name

gfs_pio_datasync — output a file's data on memroy to disk

## Synopsis

    #include <gfarm/gfarm.h>

`gfarm_error_t gfs_pio_datasync(` | gf`)`; |

`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)