Introduce interpreter class (#5006)

* Introduce interpreter class

Introduce interpreter class: run on assigned ExecEnv

Signed-off-by: Hyeongseok Oh <hseok82.oh@samsung.com>

* Fix define for header

3 files changed, 117 insertions, 2 deletions

diff --git a/runtimes/neurun/core/src/exec/interp/ExecManager.cc b/runtimes/neurun/core/src/exec/interp/ExecManager.cc
index 0fdf1b706..e3d4c314e 100644
--- a/runtimes/neurun/core/src/exec/interp/ExecManager.cc
+++ b/runtimes/neurun/core/src/exec/interp/ExecManager.cc
@@ -16,6 +16,8 @@
 
 #include "ExecManager.h"
 #include "ExecEnv.h"
+#include "Interpreter.h"
+
 #include "util/logging.h"
 
 #include <cpp14/memory.h>
@@ -146,9 +148,18 @@ void ExecManager::execute(void)
     }
   });
 
-  // TODO Interpreter execution
+  /*****************************************************************************
+   * Invoke interpreter
+   ****************************************************************************/
+
+  Interpreter interp(std::move(interp_env));
+  interp.run();
+
+  /*****************************************************************************
+   * Invoked interpreter run is finished
+   ****************************************************************************/
 
-  throw std::runtime_error{"NYI: ExecManager execute"};
+  throw std::runtime_error{"NYI: ExecManager handle model output"};
 }
 
 } // namespace interp
diff --git a/runtimes/neurun/core/src/exec/interp/Interpreter.cc b/runtimes/neurun/core/src/exec/interp/Interpreter.cc
new file mode 100644
index 000000000..5504e957d
--- /dev/null
+++ b/runtimes/neurun/core/src/exec/interp/Interpreter.cc
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+#include "Interpreter.h"
+
+#include "util/logging.h"
+
+namespace neurun
+{
+namespace exec
+{
+namespace interp
+{
+
+void Interpreter::run()
+{
+  VERBOSE(INTERPRETER) << "Interpreter is invoked " << std::endl;
+
+  throw std::runtime_error("NYI: interpreter run");
+}
+
+} // namespace interp
+} // namespace exec
+} // namespace neurun
diff --git a/runtimes/neurun/core/src/exec/interp/Interpreter.h b/runtimes/neurun/core/src/exec/interp/Interpreter.h
new file mode 100644
index 000000000..1b73592b3
--- /dev/null
+++ b/runtimes/neurun/core/src/exec/interp/Interpreter.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+
+/**
+ * @file  Interpreter.h
+ * @brief This file contains Interpreter class for interpretation
+ */
+#ifndef __NEURUN_EXEC_INTERP_INTERPRETER_H__
+#define __NEURUN_EXEC_INTERP_INTERPRETER_H__
+
+#include "ExecEnv.h"
+
+namespace neurun
+{
+namespace exec
+{
+namespace interp
+{
+
+/**
+ * @brief Class for interpretation
+ */
+class Interpreter
+{
+
+public:
+  /**
+   * @brief Construct a new Interpreter object (deleted)
+   */
+  Interpreter() = delete;
+  /**
+   * @brief     Construct a new Interpreter object
+   * @param[in] env Execution environment variable for interpreter object
+   */
+  Interpreter(std::unique_ptr<ExecEnv> env) : _env{std::move(env)}
+  {
+    // DO NOTHING
+  }
+
+public:
+  /**
+   * @brief Run interpreter until there is no operation to execute
+   */
+  void run();
+
+private:
+  std::unique_ptr<ExecEnv> _env;
+};
+
+} // namespace interp
+} // namespace exec
+} // namespace neurun
+
+#endif // __NEURUN_EXEC_INTERP_INTERPRETER_H__