debian man page for xdf_prepare_transfer

XDF_PREPARE_TRANSFER(3) 				     xdffileio library manual					   XDF_PREPARE_TRANSFER(3)

NAME
       xdf_prepare_transfer - Setup the internals of the xDF file to be ready to receive or send data.

SYNOPSIS
       #include <xdfio.h>

       int xdf_prepare_transfer(struct xdf* xdf);

DESCRIPTION
       xdf_prepare_transfer()  set  up the internal structures of the xDF file referenced by xdf to be ready to receive or send data. After a suc-
       cessful call to it, you can call xdf_write(3) or xdf_read(3) depending of the mode of the xDF file.

       Since this function prepares the transfer, no call to any function which configures it will be allowed anymore  after  xdf_define_arrays(3)
       succeed. In particular, xdf_set_conf(3), xdf_setchconf(3) and xdf_define_arrays(3) will fail afterwards.

       In  case of failure due to I/O (file to big, connection to file system lost...), the best procedure is to close the file since the underly-
       ing file will be in a undertermined stated.

RETURN VALUE
       xdf_define_arrays() returns 0 in case of success. Otherwise -1 is returned and errno is set appropriately.

ERRORS
       EINVAL xdf is NULL.

       ENOMEM The system is unable to allocate memory resources.

       EFBIG  An attempt was made to write a file that exceeds the implementation-defined maximum file size or the process's file size	limit,	or
	      to write at a position past the maximum allowed offset.

       EINTR  The call was interrupted by a signal before any data was written; see signal(7).

       EIO    A low-level I/O error occurred while modifying the inode.

       ENOSPC The device containing the xDF file has no room for the data.

       ESTALE Stale file handle. This error can occur for NFS and for other file systems

SEE ALSO
       xdf_define_arrays(3), xdf_set_conf(3), xdf_set_chconf(3), xdf_read(3), xdf_write(3)

EPFL
								       2010						   XDF_PREPARE_TRANSFER(3)