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