Specifies type of data to be accessed via the MULTI driver, enabling more direct access
H5P_SET_MULTI_TYPE ( fapl_id, type )
herr_t H5Pset_multi_type (
IN: File access property list identifier
IN: Type of data to be accessed
H5P_SET_MULTI_TYPE sets the type of data property in the file access property list fapl_id.
This setting enables a user application to specify the type of data the application wishes to access so that the application can retrieve a file handle for low-level access to the particular member of a set of MULTI files in which that type of data is stored. The file handle is retrieved with a separate call to H5F_GET_VFD_HANDLE (or, in special circumstances, to H5FD_GET_VFD_HANDLE; see Virtual File Layer and List of VFL Functions in HDF5 Technical Notes).
The type of data specified in type may be one of the following:
Super block data
Dataset raw data
Global heap data
Local Heap data
Object header data
This function is for use only when accessing an HDF5 file written as a set of files with the MULTI file driver.
Returns a non-negative value if successful; otherwise returns a negative value.