working commit

works/rpcvar/rpcclient.cpp

@@ -0,0 +1,44 @@
+
+#include <cstring>
+#include <expected>
+#include <iostream>
+#include <span>
+#include <string>
+#include <vector>
+#include <sstream>
+
+#include <google/protobuf/message.h>
+#include <control.pb.h>
+
+#include <rpcclient.hpp>
+#include <msgheader.hpp>
+#include <netclient.hpp>
+
+RPCClient::RPCClient(NetClient& iconnector) {
+        connector = &iconnector;
+}
+
+std::expected<void, std::string> RPCClient::DoTransaction(const pbMessage& pbReq, pbMessage& pbRes) {
+        std::string rawRequest;
+        pbReq.SerializeToString(&rawRequest);
+
+        MessageHeader reqHeader(rawRequest.size());
+        auto rawReqHeader = reqHeader.Encode();
+
+        std::string reqPacket;
+        reqPacket.append(rawReqHeader);
+        reqPacket.append(rawRequest);
+
+        connector->Write(reqPacket);
+
+        const int headerSize = rpcHeaderSize;
+        std::string rawResHeader;
+        connector->Read(rawResHeader, headerSize);
+        MessageHeader resHeader;
+        resHeader.Decode(rawResHeader);
+
+        std::string rawResponse;
+        connector->Read(rawResponse, resHeader.PacketSize());
+        pbRes.ParseFromString(rawResponse);
+        return {};
+}