H5DataSet * H5File::OpenDataSet(const std::string &name) {
size_t id = mCurrentId;
mCurrentId++;
H5DataSet *ds = new H5DataSet(id);
string groupName, dsName;
FillInGroupFromName(name, groupName, dsName);
hid_t group = GetOrCreateGroup(mHFile, groupName);
ds->SetGroup(group);
ds->SetParent(this);
ds->SetName(dsName);
/* Save old error handler */
herr_t (*old_func)(hid_t, void *);
void *old_client_data;
H5Eget_auto(H5E_DEFAULT, &old_func, &old_client_data);
/* Turn off error handling */
H5Eset_auto(H5E_DEFAULT, NULL, NULL);
if (ds->OpenDataSet()) {
mDSMap[id] = ds;
H5Eset_auto(H5E_DEFAULT, old_func, old_client_data);
return mDSMap[id];
}
/* Restore previous error handler */
H5Eset_auto(H5E_DEFAULT, old_func, old_client_data);
delete ds;
return NULL;
}
