e5ffdb506b
There's enough information to make it useful, and it's good to have a standard method. Before this TFRT TensorHandles and custom device handles didn't have debug strings. Both may want to override the method eventually. PiperOrigin-RevId: 346876438 Change-Id: I1e679ec891446ad0cb60c03c254fe16d3f3d49ef
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef TENSORFLOW_C_EAGER_ABSTRACT_TENSOR_HANDLE_H_
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#define TENSORFLOW_C_EAGER_ABSTRACT_TENSOR_HANDLE_H_
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#include <memory>
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#include "tensorflow/core/framework/tensor_shape.h"
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#include "tensorflow/core/framework/types.pb.h"
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#include "tensorflow/core/platform/refcount.h"
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#include "tensorflow/core/platform/status.h"
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namespace tensorflow {
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// Abstract interface to a Tensor handle in either tracing or immediate
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// execution mode.
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class AbstractTensorHandle : public core::RefCounted {
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protected:
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enum AbstractTensorHandleKind { kGraph, kMlir, kEager, kTfrt, kCustomDevice };
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explicit AbstractTensorHandle(AbstractTensorHandleKind kind) : kind_(kind) {}
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virtual ~AbstractTensorHandle() {}
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public:
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// Returns tensor dtype.
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virtual tensorflow::DataType DataType() const = 0;
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// Returns tensor shape. If tensor has unknown rank, shape remains untouched.
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virtual tensorflow::Status Shape(
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tensorflow::PartialTensorShape* shape) const = 0;
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// The default debug string includes a shape and dtype. Implementations are
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// free to override it with something more informative.
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virtual std::string DebugString() const;
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AbstractTensorHandleKind getKind() const { return kind_; }
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private:
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const AbstractTensorHandleKind kind_;
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};
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namespace internal {
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struct AbstractTensorHandleDeleter {
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void operator()(AbstractTensorHandle* p) const {
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if (p != nullptr) {
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p->Unref();
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}
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}
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};
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} // namespace internal
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using AbstractTensorHandlePtr =
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std::unique_ptr<AbstractTensorHandle,
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internal::AbstractTensorHandleDeleter>;
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} // namespace tensorflow
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#endif // TENSORFLOW_C_EAGER_ABSTRACT_TENSOR_HANDLE_H_
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