XDF_GET_EVTTYPE(3) xdffileio library manual XDF_GET_EVTTYPE(3)NAME
xdf_get_evttype - Get information about an event type
SYNOPSIS
#include <xdfio.h>
int xdf_get_evttype(struct xdf* xdf, unsigned int evttype,
int* code, const char** desc);
DESCRIPTION
xdf_get_evttype() returns the information of the event type evttype of the XDF file referenced by xdf. The code and the description of the
event type are returned respectively in the pointers code and desc.
RETURN VALUE
The function returns 0 in case of success. Otherwise -1 is returned and errno is set appropriately.
ERRORS
EINVAL xdf, code or desc is NULL.
ERANGE evttype is an invalid event type of xdf
SEE ALSO xdf_get_event(3)EPFL 2010 XDF_GET_EVTTYPE(3)
Check Out this Related Man Page
XDF_DEFINE_ARRAYS(3) xdffileio library manual XDF_DEFINE_ARRAYS(3)NAME
xdf_define_arrays - Specify the number of input/output arrays
SYNOPSIS
#include <xdfio.h>
int xdf_define_arrays(struct xdf* xdf,
unsigned int narrays, const size_t *strides);
DESCRIPTION
xdf_define_arrays() specifies the number of arrays and its strides for upcoming calls to xdf_write(3) and xdf_read(3) using xdf. This
function is used to configure the upcoming transfer. As such, it must be called before xdf_prepare_transfer(3) (calling it after will pro-
duce an error). However the function may be called several times but only the last call is meaningful for the transfer.
narrays specifies the number of arrays that will be provided in the argument list of xdf_write(3) or xdf_read(3).
strides argument should point to an array of narrays unsigned int corresponding respectively to the stride of each arrays that will be sup-
plied to the upcoming call to xdf_write(3) or xdf_read(3). The stride corresponds to the length in byte between two consecutive samples of
the same channel in the array.
RETURN VALUE
xdf_define_arrays() returns 0 in case of success, otherwise -1 and errno is set appropriately.
ERRORS
ENOMEM The system is unable to allocate resources.
SEE ALSO xdf_prepare_transfer(3), xdf_read(3), xdf_write(3)EPFL 2010 XDF_DEFINE_ARRAYS(3)
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