EVOLUTION-MANAGER

Edit File: padding_fifo_queue.h

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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http://www.apache.org/licenses/LICENSE-2.0

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==============================================================================*/

#ifndef TENSORFLOW_CORE_KERNELS_PADDING_FIFO_QUEUE_H_
#define TENSORFLOW_CORE_KERNELS_PADDING_FIFO_QUEUE_H_

#include <deque>
#include <vector>

#include "tensorflow/core/framework/op_kernel.h"
#include "tensorflow/core/framework/partial_tensor_shape.h"
#include "tensorflow/core/framework/tensor.h"
#include "tensorflow/core/framework/tensor_shape.h"
#include "tensorflow/core/framework/types.h"
#include "tensorflow/core/kernels/fifo_queue.h"
#include "tensorflow/core/kernels/typed_queue.h"
#include "tensorflow/core/platform/macros.h"
#include "tensorflow/core/platform/mutex.h"
#include "tensorflow/core/platform/types.h"

namespace tensorflow {

class PaddingFIFOQueue : public FIFOQueue {
 public:
  PaddingFIFOQueue(int32 capacity, const DataTypeVector& component_dtypes,
                   const std::vector<PartialTensorShape>& component_shapes,
                   const string& name);

Status Initialize() override;

// Implementations of QueueInterface methods --------------------------------

void TryDequeueMany(int num_elements, OpKernelContext* ctx,
                      bool allow_small_batch,
                      CallbackWithTuple callback) override;
  Status MatchesNodeDef(const NodeDef& node_def) override;

protected:
  Status ValidateManyTuple(const Tuple& tuple) override;
  Status ValidateTuple(const Tuple& tuple) override;
  Status CompatibleNodeDefShapes(const NodeDef& node_def) const;

// Convert a list of PartialTensorShape to a list of
  // TensorShape.
  // Any unknown dimension sizes are converted to 0.
  // REQUIRED: All the input shapes have well defined rank.
  static std::vector<TensorShape> ConvertShapesPartialDimensionsToZero(
      const gtl::ArraySlice<PartialTensorShape>& partial_shapes);

// Sets the values in the given element to zero.
  static Status SetElementZero(Tensor* element);

// Copies element into the index^th slice (in the first dimension)
  // of parent.  Allows for the parent's slice to have a larger size
  // than the element, and copies the element into the upper left hand
  // corner of the slice.
  static Status CopyElementToLargerSlice(const Tensor& element, Tensor* parent,
                                         int index);

std::vector<PartialTensorShape> partial_shapes_;

private:
  ~PaddingFIFOQueue() override {}

static Status GetElementComponent(const PaddingFIFOQueue::Tuple& tuple,
                                    int component, OpKernelContext* ctx,
                                    PersistentTensor* out_tensor);

static Status IsSameSizeExceptZerosInFirst(const TensorShape& first,
                                             const TensorShape& second);

TF_DISALLOW_COPY_AND_ASSIGN(PaddingFIFOQueue);
};

}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_KERNELS_PADDING_FIFO_QUEUE_H_