1 | /* Copyright 2015 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_CORE_KERNELS_PADDING_FIFO_QUEUE_H_ |
17 | #define TENSORFLOW_CORE_KERNELS_PADDING_FIFO_QUEUE_H_ |
18 | |
19 | #include <deque> |
20 | #include <vector> |
21 | |
22 | #include "tensorflow/core/framework/op_kernel.h" |
23 | #include "tensorflow/core/framework/partial_tensor_shape.h" |
24 | #include "tensorflow/core/framework/tensor.h" |
25 | #include "tensorflow/core/framework/tensor_shape.h" |
26 | #include "tensorflow/core/framework/types.h" |
27 | #include "tensorflow/core/kernels/fifo_queue.h" |
28 | #include "tensorflow/core/kernels/typed_queue.h" |
29 | #include "tensorflow/core/platform/macros.h" |
30 | #include "tensorflow/core/platform/mutex.h" |
31 | #include "tensorflow/core/platform/types.h" |
32 | |
33 | namespace tensorflow { |
34 | |
35 | class PaddingFIFOQueue : public FIFOQueue { |
36 | public: |
37 | PaddingFIFOQueue(int32_t capacity, const DataTypeVector& component_dtypes, |
38 | const std::vector<PartialTensorShape>& component_shapes, |
39 | const string& name); |
40 | |
41 | Status Initialize() override; |
42 | |
43 | // Implementations of QueueInterface methods -------------------------------- |
44 | |
45 | void TryDequeueMany(int num_elements, OpKernelContext* ctx, |
46 | bool allow_small_batch, |
47 | CallbackWithTuple callback) override; |
48 | Status MatchesNodeDef(const NodeDef& node_def) override; |
49 | |
50 | protected: |
51 | Status ValidateManyTuple(const Tuple& tuple) override; |
52 | Status ValidateTuple(const Tuple& tuple) override; |
53 | Status CompatibleNodeDefShapes(const NodeDef& node_def) const; |
54 | |
55 | // Convert a list of PartialTensorShape to a list of |
56 | // TensorShape. |
57 | // Any unknown dimension sizes are converted to 0. |
58 | // REQUIRED: All the input shapes have well defined rank. |
59 | static std::vector<TensorShape> ConvertShapesPartialDimensionsToZero( |
60 | const gtl::ArraySlice<PartialTensorShape>& partial_shapes); |
61 | |
62 | // Sets the values in the given element to zero. |
63 | static Status SetElementZero(Tensor* element); |
64 | |
65 | // Copies element into the index^th slice (in the first dimension) |
66 | // of parent. Allows for the parent's slice to have a larger size |
67 | // than the element, and copies the element into the upper left hand |
68 | // corner of the slice. |
69 | static Status CopyElementToLargerSlice(const Tensor& element, Tensor* parent, |
70 | int index); |
71 | |
72 | std::vector<PartialTensorShape> partial_shapes_; |
73 | |
74 | private: |
75 | ~PaddingFIFOQueue() override {} |
76 | |
77 | static Status GetElementComponent(const PaddingFIFOQueue::Tuple& tuple, |
78 | int component, OpKernelContext* ctx, |
79 | Tensor* out_tensor); |
80 | |
81 | static Status IsSameSizeExceptZerosInFirst(const TensorShape& first, |
82 | const TensorShape& second); |
83 | |
84 | TF_DISALLOW_COPY_AND_ASSIGN(PaddingFIFOQueue); |
85 | }; |
86 | |
87 | } // namespace tensorflow |
88 | |
89 | #endif // TENSORFLOW_CORE_KERNELS_PADDING_FIFO_QUEUE_H_ |
90 | |