1 files changed, 116 insertions, 0 deletions
diff --git a/runtime/neurun/core/src/util/ConfigSource.cc b/runtime/neurun/core/src/util/ConfigSource.cc
new file mode 100644
index 000000000..7d57ec178
--- /dev/null
+++ b/runtime/neurun/core/src/util/ConfigSource.cc
@@ -0,0 +1,116 @@
+/*
+ * 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 "util/ConfigSource.h"
+#include "util/GeneralConfigSource.h"
+#include "util/EnvConfigSource.h"
+
+#include <array>
+#include <algorithm>
+#include <cassert>
+
+#include "cpp14/memory.h"
+
+namespace neurun
+{
+namespace util
+{
+
+static std::unique_ptr<IConfigSource> _source;
+
+void config_source(std::unique_ptr<IConfigSource> &&source) { _source = std::move(source); }
+
+static IConfigSource *config_source()
+{
+  if (!_source)
+  {
+#ifdef ENVVAR_FOR_DEFAULT_CONFIG
+    // Default ConfigSource is EnvConfigSource
+    _source = nnfw::cpp14::make_unique<EnvConfigSource>();
+#else
+    _source = nnfw::cpp14::make_unique<GeneralConfigSource>();
+#endif // ENVVAR_FOR_DEFAULT_CONFIG
+  }
+  return _source.get();
+}
+
+static std::string getConfigOrDefault(const std::string &key)
+{
+  static std::unordered_map<std::string, std::string> defaults;
+  if (defaults.empty())
+  {
+#define CONFIG(Name, Type, Default)               \
+  {                                               \
+    auto name = std::string{#Name};               \
+    defaults.emplace(name, std::string{Default}); \
+  }
+
+#include "util/Config.lst"
+
+#undef CONFIG
+  }
+
+  // Treat empty string and absence of the value to be the same
+  auto ret = config_source()->get(key);
+  if (ret.empty())
+  {
+    auto itr = defaults.find(key);
+    if (itr != defaults.end())
+    {
+      // Return the default value if exists
+      ret = itr->second;
+    }
+  }
+
+  return ret;
+}
+
+bool getConfigBool(const std::string &key)
+{
+  auto raw = getConfigOrDefault(key);
+  static const std::array<std::string, 5> false_list{"0", "OFF", "FALSE", "N", "NO"};
+  auto false_found = std::find(false_list.begin(), false_list.end(), raw);
+
+  return (false_found == false_list.end());
+}
+
+int getConfigInt(const std::string &key)
+{
+  auto raw = getConfigOrDefault(key);
+  return std::stoi(raw);
+}
+
+std::string getConfigString(const std::string &key) { return getConfigOrDefault(key); }
+
+} // namespace util
+} // namespace neurun
+
+namespace neurun
+{
+namespace util
+{
+namespace config
+{
+
+#define CONFIG(Name, Type, Default) const char *Name = #Name;
+
+#include "util/Config.lst"
+
+#undef CONFIG
+
+} // namespace config
+} // namespace util
+} // namespace neurun