1/* Copyright 2015 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// See docs in ../ops/data_flow_ops.cc.
17
18#include <deque>
19#include <vector>
20
21#include "tensorflow/core/framework/op_kernel.h"
22#include "tensorflow/core/framework/partial_tensor_shape.h"
23#include "tensorflow/core/framework/resource_mgr.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/padding_fifo_queue.h"
28#include "tensorflow/core/kernels/queue_base.h"
29#include "tensorflow/core/kernels/queue_op.h"
30#include "tensorflow/core/lib/core/errors.h"
31#include "tensorflow/core/platform/logging.h"
32#include "tensorflow/core/platform/macros.h"
33#include "tensorflow/core/platform/mutex.h"
34#include "tensorflow/core/platform/thread_annotations.h"
35#include "tensorflow/core/platform/types.h"
36
37namespace tensorflow {
38
39// Defines a PaddingFIFOQueueOp, which produces a Queue (specifically, one
40// backed by PaddingFIFOQueue) that persists across different graph
41// executions, and sessions. Running this op produces a single-element
42// tensor of handles to Queues in the corresponding device.
43class PaddingFIFOQueueOp : public TypedQueueOp {
44 public:
45 explicit PaddingFIFOQueueOp(OpKernelConstruction* context)
46 : TypedQueueOp(context) {
47 OP_REQUIRES_OK(context, context->GetAttr("shapes", &component_shapes_));
48 for (const auto& shape : component_shapes_) {
49 OP_REQUIRES(context, shape.dims() >= 0,
50 errors::InvalidArgument("shape ", shape.DebugString(),
51 " must have known rank."));
52 }
53 }
54
55 private:
56 Status CreateResource(QueueInterface** ret) override
57 TF_EXCLUSIVE_LOCKS_REQUIRED(mu_) {
58 PaddingFIFOQueue* queue = new PaddingFIFOQueue(
59 capacity_, component_types_, component_shapes_, cinfo_.name());
60 return CreateTypedQueue(queue, ret);
61 }
62
63 std::vector<PartialTensorShape> component_shapes_;
64
65 TF_DISALLOW_COPY_AND_ASSIGN(PaddingFIFOQueueOp);
66};
67
68REGISTER_KERNEL_BUILDER(Name("PaddingFIFOQueue").Device(DEVICE_CPU),
69 PaddingFIFOQueueOp);
70REGISTER_KERNEL_BUILDER(Name("PaddingFIFOQueueV2").Device(DEVICE_CPU),
71 PaddingFIFOQueueOp);
72
73} // namespace tensorflow
74