[tf.data] Move `tf.contrib.data` C++ code to a core "experimental" directory.

NOTE: All ops and kernels previously previously defined in
tensorflow/contrib/data have had their name prefixed with
"Experimental" to indicate that they are not (yet) stable, and thus
not subject to backwards or forwards compatibility guarantees.
PiperOrigin-RevId: 214940819

16 files changed, 217 insertions, 0 deletions

diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalAssertNextDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalAssertNextDataset.pbtxt
new file mode 100644
index 0000000000..fa8fc96bb2
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalAssertNextDataset.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalAssertNextDataset"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalCSVDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalCSVDataset.pbtxt
new file mode 100644
index 0000000000..5fd88e7a0c
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalCSVDataset.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalCSVDataset"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalDirectedInterleaveDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalDirectedInterleaveDataset.pbtxt
new file mode 100644
index 0000000000..ac1f9719fe
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalDirectedInterleaveDataset.pbtxt
@@ -0,0 +1,21 @@
+op {
+  graph_op_name: "ExperimentalDirectedInterleaveDataset"
+  in_arg {
+    name: "selector_input_dataset"
+    description: <<END
+A dataset of scalar `DT_INT64` elements that determines which of the
+`N` data inputs should produce the next output element.
+END
+  }
+  in_arg {
+    name: "data_input_datasets"
+    description: <<END
+`N` datasets with the same type that will be interleaved according to
+the values of `selector_input_dataset`.
+END
+  }
+  summary: <<END
+A substitute for `InterleaveDataset` on a fixed list of `N` datasets.
+END
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResource.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResource.pbtxt
new file mode 100644
index 0000000000..66511eff60
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResource.pbtxt
@@ -0,0 +1,58 @@
+op {
+  graph_op_name: "ExperimentalFunctionBufferingResource"
+  in_arg {
+    name: "string_arg"
+    description: <<END
+String argument to the function call.
+END
+  }
+  in_arg {
+    name: "target_device"
+    description: <<END
+Target device to execute the function on.
+END
+  }
+  out_arg {
+    name: "resource"
+    description: <<END
+Handle to the resource created.
+END
+  }
+  attr {
+    name: "shared_name"
+    description: <<END
+If non-empty, this resource will be shared under the given name across
+multiple sessions.
+END
+  }
+  attr {
+    name: "container"
+    description: <<END
+If non-empty, this resource is placed in the given container.
+Otherwise, a default container is used.
+END
+  }
+  attr {
+    name: "f"
+    description: <<END
+Function to be executed.
+END
+  }
+  attr {
+    name: "buffer_size"
+    description: <<END
+Size of the buffer.
+END
+  }
+  attr {
+    name: "output_types"
+    description: <<END
+The type list for the return values.
+END
+  }
+  summary: <<END
+Creates a resource that fills up a buffer by making function calls.
+END
+  visibility: HIDDEN
+}
+
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceGetNext.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceGetNext.pbtxt
new file mode 100644
index 0000000000..bf4b66b22b
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceGetNext.pbtxt
@@ -0,0 +1,25 @@
+op {
+  graph_op_name: "ExperimentalFunctionBufferingResourceGetNext"
+  in_arg {
+    name: "function_buffer_resource"
+    description: <<END
+The FunctionBufferingResource handle.
+END
+  }
+  out_arg {
+    name: "output"
+    description: <<END
+A list of return values.
+END
+  }
+  attr {
+    name: "output_types"
+    description: <<END
+The type list for the return values.
+END
+  }
+  summary: <<END
+Gets the next element from a FunctionBufferingResource.
+END
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceReset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceReset.pbtxt
new file mode 100644
index 0000000000..729718ddb3
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalFunctionBufferingResourceReset.pbtxt
@@ -0,0 +1,13 @@
+op {
+  graph_op_name: "ExperimentalFunctionBufferingResourceReset"
+  in_arg {
+    name: "function_buffer_resource"
+    description: <<END
+The FunctionBufferingResource handle.
+END
+  }
+  summary: <<END
+Resets the FunctionBufferingResource.
+END
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalIdentityIndexedDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalIdentityIndexedDataset.pbtxt
new file mode 100644
index 0000000000..fe266c111f
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalIdentityIndexedDataset.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalIdentityIndexedDataset"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalIgnoreErrorsDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalIgnoreErrorsDataset.pbtxt
new file mode 100644
index 0000000000..d42546516d
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalIgnoreErrorsDataset.pbtxt
@@ -0,0 +1,8 @@
+op {
+  graph_op_name: "ExperimentalIgnoreErrorsDataset"
+  summary: <<END
+Creates a dataset that contains the elements of `input_dataset` ignoring errors.
+END
+  visibility: HIDDEN
+}
+
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetGet.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetGet.pbtxt
new file mode 100644
index 0000000000..e285f87e10
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetGet.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalIndexedDatasetGet"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetMaterialize.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetMaterialize.pbtxt
new file mode 100644
index 0000000000..60c32473b5
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalIndexedDatasetMaterialize.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalIndexedDatasetMaterialize"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalIteratorGetDevice.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalIteratorGetDevice.pbtxt
new file mode 100644
index 0000000000..b72b229e9a
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalIteratorGetDevice.pbtxt
@@ -0,0 +1,8 @@
+op {
+  graph_op_name: "ExperimentalIteratorGetDevice"
+  summary: <<END
+Returns the name of the device on which `resource` has been placed.
+END
+  visibility: HIDDEN
+}
+
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalLMDBDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalLMDBDataset.pbtxt
new file mode 100644
index 0000000000..b38b23a51d
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalLMDBDataset.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalLMDBDataset"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalMaterializedIndexDatasetHandle.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalMaterializedIndexDatasetHandle.pbtxt
new file mode 100644
index 0000000000..9676b9d284
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalMaterializedIndexDatasetHandle.pbtxt
@@ -0,0 +1,4 @@
+op {
+  graph_op_name: "ExperimentalMaterializedIndexDatasetHandle"
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolDataset.pbtxt
new file mode 100644
index 0000000000..d73b5bfda3
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolDataset.pbtxt
@@ -0,0 +1,13 @@
+op {
+  graph_op_name: "ExperimentalThreadPoolDataset"
+  in_arg {
+    name: "thread_pool"
+    description: <<END
+A resource produced by the ThreadPoolHandle op.
+END
+  }
+  summary: <<END
+Creates a dataset that uses a custom thread pool to compute `input_dataset`.
+END
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolHandle.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolHandle.pbtxt
new file mode 100644
index 0000000000..48bf93406c
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalThreadPoolHandle.pbtxt
@@ -0,0 +1,35 @@
+op {
+  graph_op_name: "ExperimentalThreadPoolHandle"
+  out_arg {
+    name: "handle"
+    description: <<END
+A resource that can be consumed by one or more ExperimentalThreadPoolDataset
+ops.
+END
+  }
+  attr {
+    name: "num_threads"
+    description: <<END
+The number of threads in the thread pool.
+END
+  }
+  attr {
+    name: "max_intra_op_parallelism"
+    description: <<END
+The maximum degree of parallelism to use within operations that execute on this
+threadpool.
+END
+  }
+  attr {
+    name: "display_name"
+    description: <<END
+A human-readable name for the threads that may be visible in some
+visualizations.
+threadpool.
+END
+  }
+  summary: <<END
+Creates a dataset that uses a custom thread pool to compute `input_dataset`.
+END
+  visibility: HIDDEN
+}
diff --git a/tensorflow/core/api_def/base_api/api_def_ExperimentalUniqueDataset.pbtxt b/tensorflow/core/api_def/base_api/api_def_ExperimentalUniqueDataset.pbtxt
new file mode 100644
index 0000000000..68ed797a0c
--- /dev/null
+++ b/tensorflow/core/api_def/base_api/api_def_ExperimentalUniqueDataset.pbtxt
@@ -0,0 +1,8 @@
+op {
+  graph_op_name: "ExperimentalUniqueDataset"
+  summary: <<END
+Creates a dataset that contains the unique elements of `input_dataset`.
+END
+  visibility: HIDDEN
+}
+