1/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#ifndef TENSORFLOW_C_EAGER_DLPACK_H_
17#define TENSORFLOW_C_EAGER_DLPACK_H_
18
19#include "tensorflow/c/eager/c_api.h"
20
21namespace tensorflow {
22
23// PyCapsule name for DLPack Tensor
24const char* const kDlTensorCapsuleName = "dltensor";
25
26// Converts eager tensor handle to DLPack (DLManagedTensor*), and return the
27// void* for further PyCapsule construction.
28TF_CAPI_EXPORT extern void* TFE_HandleToDLPack(TFE_TensorHandle* h,
29 TF_Status* status);
30
31// Converts DLPack (DLManagedTensor*) to eager tensor handle.
32TF_CAPI_EXPORT extern TFE_TensorHandle* TFE_HandleFromDLPack(void* dlm,
33 TF_Status* status,
34 TFE_Context* ctx);
35
36// Calls the destructor of DLManagedTensor, used in the destructor of PyCapsule.
37TF_CAPI_EXPORT extern void TFE_CallDLManagedTensorDeleter(void* dlm_ptr);
38} // namespace tensorflow
39
40#endif // TENSORFLOW_C_EAGER_DLPACK_H_
41