XDF_GET_EVENT(3) xdffileio library manual XDF_GET_EVENT(3)NAME
xdf_get_event - Get details of an event of a data file
SYNOPSIS
#include <xdfio.h>
int xdf_get_event(struct xdf* xdf, unsigned int index,
int* evttype, double* onset, double* dur);
DESCRIPTION
xdf_get_event() returns the information of the index-th event of the file referenced by the handle xdf. The event type, start (in seconds)
and duration (in seconds) of the event are returned respectively to the pointers evttype, onset and dur.
RETURN VALUE
xdf_get_event() returns 0 in case of success. Otherwise -1 is returned and errno is set appropriately.
ERRORS
EINVAL xdf, evttype, onset or dur is NULL.
ERANGE index is bigger than the number event in the file.
SEE ALSO
xdf_add_evttype(3)EPFL 2010 XDF_GET_EVENT(3)
Check Out this Related Man Page
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)
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