Buffet: Move buffet over to platform2 from src/platform/buffet.
This change also open-sources buffet. The only change in this CL
is the removal of the Makefile and addition of the buffet.gyp file.
BUG=chromium:355180
TEST=USE=buffet emerge-gizmo platform2
Change-Id: Ibf8d3ac3f38313f82a9c07d79932b6f30130f9c5
diff --git a/buffet/map_utils.h b/buffet/map_utils.h
new file mode 100644
index 0000000..676c558
--- /dev/null
+++ b/buffet/map_utils.h
@@ -0,0 +1,46 @@
+// Copyright 2014 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BUFFET_MAP_UTILS_H_
+#define BUFFET_MAP_UTILS_H_
+
+#include <map>
+#include <vector>
+
+namespace chromeos {
+
+// Given an STL map returns a vector containing all keys from the map
+template<typename T>
+std::vector<typename T::key_type> GetMapKeys(T const& map) {
+ std::vector<typename T::key_type> keys;
+ keys.reserve(map.size());
+ for (auto&& pair : map)
+ keys.push_back(pair.first);
+ return keys;
+}
+
+// Given an STL map returns a vector containing all values from the map
+template<typename T>
+std::vector<typename T::mapped_type> GetMapValues(T const& map) {
+ std::vector<typename T::mapped_type> values;
+ values.reserve(map.size());
+ for (auto&& pair : map)
+ values.push_back(pair.second);
+ return values;
+}
+
+// Given an STL map returns a vector of key-value pairs from the map
+template<typename T>
+std::vector<std::pair<typename T::key_type,
+ typename T::mapped_type>> MapToVector(T const& map) {
+ std::vector<std::pair<typename T::key_type, typename T::mapped_type>> vector;
+ vector.reserve(map.size());
+ for (auto&& pair : map)
+ vector.push_back(pair);
+ return vector;
+}
+
+} // namespace chromeos
+
+#endif // BUFFET_MAP_UTILS_H_
