int gre_io_send_mdata(
gre_io_t * handle,
gre_io_serialized_data_t * md_buffer
)
Send a serialized buffer of mdata (data manager key/value pairs) to the
handle. The handle must have been opened for writing using
GRE_IO_WRONLY.
Parameters:
handle A valid handle created with gre_io_open()
buffer A data buffer containing a serialized data
Returns:
-1 on failure anything else is success