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Diffstat (limited to 'c++/src/H5IdComponent.cpp')
-rw-r--r-- | c++/src/H5IdComponent.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/c++/src/H5IdComponent.cpp b/c++/src/H5IdComponent.cpp index 3140836..4056dc2 100644 --- a/c++/src/H5IdComponent.cpp +++ b/c++/src/H5IdComponent.cpp @@ -155,6 +155,80 @@ IdComponent::~IdComponent() { */ } +// +// Implementation for HDF5 Reference Interface +// + +//-------------------------------------------------------------------------- +// Function: IdComponent::p_reference (protected) +// Purpose Creates a reference to an HDF5 object or a dataset region. +// Parameters +// name - IN: Name of the object to be referenced +// dataspace - IN: Dataspace with selection +// ref_type - IN: Type of reference; default to \c H5R_DATASET_REGION +// Return A reference +// Exception H5::IdComponentException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void* IdComponent::p_reference(const char* name, hid_t space_id, H5R_type_t ref_type) const +{ + void *ref; + herr_t ret_value = H5Rcreate(ref, id, name, ref_type, space_id); + if (ret_value < 0) + { + throw IdComponentException("IdComponent::p_reference", + "H5Rcreate failed"); + } + return(ref); +} + +//-------------------------------------------------------------------------- +// Function: IdComponent::p_get_obj_type (protected) +// Purpose Retrieves the type of object that an object reference points to. +// Parameters +// ref - IN: Reference to query +// ref_type - IN: Type of reference to query +// Return An object type, which can be one of the following: +// H5G_LINK Object is a symbolic link. +// H5G_GROUP Object is a group. +// H5G_DATASET Object is a dataset. +// H5G_TYPE Object is a named datatype +// Exception H5::IdComponentException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +H5G_obj_t IdComponent::p_get_obj_type(void *ref, H5R_type_t ref_type) const +{ + H5G_obj_t obj_type = H5Rget_obj_type(id, ref_type, ref); + if (obj_type == H5G_UNKNOWN) + { + throw IdComponentException("IdComponent::p_get_obj_type", + "H5R_get_obj_type failed"); + } + return(obj_type); +} + +//-------------------------------------------------------------------------- +// Function: IdComponent::p_get_region (protected) +// Purpose Retrieves a dataspace with the region pointed to selected. +// Parameters +// ref_type - IN: Type of reference to get region of - default +// to H5R_DATASET_REGION +// ref - IN: Reference to get region of +// Return Dataspace id +// Exception H5::IdComponentException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +hid_t IdComponent::p_get_region(void *ref, H5R_type_t ref_type) const +{ + hid_t space_id = H5Rget_region(id, ref_type, ref); + if (space_id < 0) + { + throw IdComponentException("IdComponent::p_get_region", + "H5Rget_region failed"); + } + return(space_id); +} + #ifndef H5_NO_NAMESPACE } #endif |