From 1c7bbb9cab70df42ea1b320bc383188ff76f77f9 Mon Sep 17 00:00:00 2001
From: Hyukjin Jeong <hj1.jeong@samsung.com>
Date: Mon, 28 Oct 2024 11:18:30 +0900
Subject: [PATCH] [record-minmax] Introduce DataSetIterator (#14258)

This introduces a base class for iterator.

ONE-DCO-1.0-Signed-off-by: Hyukjin Jeong <hj1.jeong@samsung.com>
---
 compiler/record-minmax/include/DataBuffer.h   | 37 ++++++++++++++++
 .../record-minmax/include/DataSetIterator.h   | 43 +++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 compiler/record-minmax/include/DataBuffer.h
 create mode 100644 compiler/record-minmax/include/DataSetIterator.h

diff --git a/compiler/record-minmax/include/DataBuffer.h b/compiler/record-minmax/include/DataBuffer.h
new file mode 100644
index 00000000000..1cd51a9e0ae
--- /dev/null
+++ b/compiler/record-minmax/include/DataBuffer.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2024 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __RECORD_MINMAX_DATA_BUFFER_H__
+#define __RECORD_MINMAX_DATA_BUFFER_H__
+
+#include <loco/IR/DataType.h>
+#include <loco/IR/Dimension.h>
+
+#include <vector>
+
+namespace record_minmax
+{
+
+struct DataBuffer
+{
+  loco::DataType dtype = loco::DataType::Unknown;
+  std::vector<loco::Dimension> shape;
+  std::vector<char> data;
+};
+
+} // namespace record_minmax
+
+#endif // __RECORD_MINMAX_DATA_BUFFER_H__
diff --git a/compiler/record-minmax/include/DataSetIterator.h b/compiler/record-minmax/include/DataSetIterator.h
new file mode 100644
index 00000000000..4b55a65418f
--- /dev/null
+++ b/compiler/record-minmax/include/DataSetIterator.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2024 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __RECORD_MINMAX_DATASET_ITERATOR_H__
+#define __RECORD_MINMAX_DATASET_ITERATOR_H__
+
+#include "DataBuffer.h"
+
+#include <vector>
+
+namespace record_minmax
+{
+
+// Base class for dataset iterator
+class DataSetIterator
+{
+public:
+  virtual bool hasNext() const = 0;
+
+  virtual std::vector<DataBuffer> next() = 0;
+
+  // Revisit this interface later
+  virtual bool check_type_shape() const = 0;
+
+  virtual ~DataSetIterator() = default;
+};
+
+} // namespace record_minmax
+
+#endif // __RECORD_MINMAX_DATASET_ITERATOR_H__