Basic C++ worker implementation (#6125)

cpp/include/ray/api/serializer.h

@@ -0,0 +1,41 @@
+
+#pragma once
+
+#include <ray/api/ray_exception.h>
+#include <msgpack.hpp>
+
+namespace ray {
+namespace api {
+
+class Serializer {
+ public:
+  template <typename T>
+  static void Serialize(msgpack::packer<msgpack::sbuffer> &packer, const T &val);
+
+  template <typename T>
+  static void Deserialize(msgpack::unpacker &unpacker, T *val);
+};
+
+// ---------- implementation ----------
+
+template <typename T>
+inline void Serializer::Serialize(msgpack::packer<msgpack::sbuffer> &packer,
+                                  const T &val) {
+  packer.pack(val);
+  return;
+}
+
+template <typename T>
+inline void Serializer::Deserialize(msgpack::unpacker &unpacker, T *val) {
+  msgpack::object_handle oh;
+  bool result = unpacker.next(oh);
+  if (result == false) {
+    throw RayException("unpack error");
+  }
+  msgpack::object obj = oh.get();
+  obj.convert(*val);
+  return;
+}
+
+}  // namespace api
+}  // namespace ray