# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. cimport cpython from cpython.pycapsule cimport PyCapsule_New cdef void dlpack_pycapsule_deleter(object dltensor) noexcept: cdef DLManagedTensor* dlm_tensor cdef PyObject* err_type cdef PyObject* err_value cdef PyObject* err_traceback # Do nothing if the capsule has been consumed if cpython.PyCapsule_IsValid(dltensor, "used_dltensor"): return # An exception may be in-flight, we must save it in case # we create another one cpython.PyErr_Fetch(&err_type, &err_value, &err_traceback) dlm_tensor = cpython.PyCapsule_GetPointer(dltensor, 'dltensor') if dlm_tensor == NULL: cpython.PyErr_WriteUnraisable(dltensor) # The deleter can be NULL if there is no way for the caller # to provide a reasonable destructor elif dlm_tensor.deleter: dlm_tensor.deleter(dlm_tensor) assert (not cpython.PyErr_Occurred()) # Set the error indicator from err_type, err_value, err_traceback cpython.PyErr_Restore(err_type, err_value, err_traceback)