From a076f8228ff6fe8a2f9b7ac6634b46fb598fd711 Mon Sep 17 00:00:00 2001
From: Gluzskiy Alexandr <sss@sss.chaoslab.ru>
Date: Tue, 28 Jul 2015 05:33:02 +0300
Subject: a bit of implementation of client<->server protocol

---
 protocol/udm.proto         |  2 +-
 server/include/utilities.h |  5 +++++
 server/src/utilities.cpp   | 26 ++++++++++++++++++++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/protocol/udm.proto b/protocol/udm.proto
index 623f2d5..f762a46 100644
--- a/protocol/udm.proto
+++ b/protocol/udm.proto
@@ -29,7 +29,7 @@ enum MODULE_UI_ELEMENT_TYPE {
 	UI_INTEGER = 2; //numeric only ui elements (use strings instead ?)
 	UI_PROGRESS_BAR = 3; //generic progress bar
 	UI_WINDOW = 4; //ui window ...
-	UI_GROUP = 5; //empty ui element to group children together in ui
+	UI_GROUP = 5; //empty ui element to group children together in ui (tabs can be implemented using this type)
 }
 
 message module_ui_element_info {
diff --git a/server/include/utilities.h b/server/include/utilities.h
index de97f2f..9becc48 100644
--- a/server/include/utilities.h
+++ b/server/include/utilities.h
@@ -23,9 +23,14 @@
 
 
 #include <string>
+#include <memory>
 
 std::string replace_home_var(const std::string &path);
 
+class server_msg;
+
+std::shared_ptr<char*> pack_msg(server_msg *msg, int *size);
+
 
 
 
diff --git a/server/src/utilities.cpp b/server/src/utilities.cpp
index 1cebd16..5ea14c1 100644
--- a/server/src/utilities.cpp
+++ b/server/src/utilities.cpp
@@ -19,6 +19,7 @@
 */
 
 #include "utilities.h"
+#include "../../protocol/udm.pb.h"
 
 std::string replace_home_var(const std::string &path)
 {
@@ -28,3 +29,28 @@ std::string replace_home_var(const std::string &path)
 	return tmp_path;
 
 }
+
+
+std::shared_ptr<char*> pack_data(const std::string &buf, int *size_)
+{
+//	BOOST_LOG_TRIVIAL(debug)<<__FILE__<<":"<<__LINE__<<"\t"<<__func__;
+	std::shared_ptr<char*> ptr = std::make_shared<char*>(new char[buf.length() + 4]);
+	int32_t size = buf.length();
+	*size_ = size + 4;
+	(*ptr)[3] = size & 0xff;
+	(*ptr)[2] = (size>>8) & 0xff;
+	(*ptr)[1] = (size>>16) & 0xff;
+	(*ptr)[0] = (size>>24) & 0xff;
+	char *fck = (*ptr)+4;
+	memcpy(fck, buf.data(), buf.length());
+	return ptr;
+}
+
+std::shared_ptr<char*> pack_msg(server_msg *msg, int *size_)
+{
+//	BOOST_LOG_TRIVIAL(debug)<<__FILE__<<":"<<__LINE__<<"\t"<<__func__;
+//	BOOST_LOG_TRIVIAL(trace)<<"packing message:\n"<<cmd.DebugString();
+	std::string msg_buf;
+	msg->SerializeToString(&msg_buf);
+	return pack_data(msg_buf, size_);
+}
-- 
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