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_SEEK(3) xdffileio library manual XDF_SEEK(3)NAME
xdf_seek - move the sample pointer of a xDF file
SYNOPSIS
#include <xdfio.h>
off_t xdf_seek(struct xdf* xdf, off_t offset, int whence);
DESCRIPTION
xdf_seek() repositions the current sample pointer according to the couple (offset,whence) where whence can be:
SEEK_SET
The offset is set to offset bytes.
SEEK_CUR
The offset is set to its current location plus offset bytes.
SEEK_END
The offset is set to the size of the file plus offset bytes.
The file referenced by xdf should have been opened with mode XDF_READ and xdf_prepare_arrays(3) should have been successfully called on it.
RETURN VALUE
Upon successful completion, xdf_seek() returns the resulting offset location as measured in number of samples from the beginning of the
recording. Otherwise, a value of -1 is returned and errno is set to indicate the error.
ERRORS
EINVAL xdf is NULL or whence is none of the allowed values.
EPERM No successfull call to xdf_prepare_transfer(3) have been done on xdf or it has been opened using the mode XDF_WRITE.
ERANGE The requested offset is out of the range of the recording.
EINTR The call was interrupted by a signal before any data was read; see signal(7).
EIO A low-level I/O error occurred while reading from the inode.
ESTALE Stale file handle. This error can occur for NFS and for other file systems
SEE ALSO xdf_define_arrays(3), xdf_prepare_transfer(3)EPFL 2010 XDF_SEEK(3)
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