Config.hpp

chronolaw · chronolaw · commit f03b9ee69b65 · 2020-04-10T16:11:04.000+08:00
diff --git a/section5/Config.hpp b/section5/Config.hpp
@@ -0,0 +1,56 @@
+// Copyright (c) 2020 by Chrono
+
+#ifndef _HELLO_HPP
+#define _HELLO_HPP
+
+#include "cpplang.hpp"
+
+extern "C" {
+#include <luajit.h>
+#include <lualib.h>
+#include <lauxlib.h>
+}
+
+#include <LuaBridge/LuaBridge.h>
+
+BEGIN_NAMESPACE(cpp_study)
+
+class Config final
+{
+public:
+    using vm_type           = std::shared_ptr<lua_State>;
+    using value_type        = luabridge::LuaRef;
+
+    //using string_type       = std::string;
+    using string_view_type  = const std::string&;
+public:
+    Config() noexcept
+    {
+        assert(m_vm);
+
+        luaL_openlibs(m_vm.get());
+    }
+
+   ~Config() = default;
+public:
+    void load(string_view_type filename)
+    {
+        auto status = luaL_dofile(m_vm.get(), filename.c_str());
+
+        if (!status) {
+            throw std::runtime_error("failed to parse config");
+        }
+    }
+
+    value_type get(string_view_type key) const
+    {
+        return luabridge::getGlobal(m_vm.get(), key.c_str());
+    }
+private:
+    vm_type     m_vm {luaL_newstate(), lua_close};
+};
+
+END_NAMESPACE(cpp_study)
+
+#endif  //_HELLO_HPP
+
diff --git a/section5/conf.lua b/section5/conf.lua
diff --git a/section5/srv.cpp b/section5/srv.cpp
@@ -1,14 +1,15 @@
 // Copyright (c) 2020 by Chrono
 //
-// g++ srv.cpp -std=c++14 -I../common -I../common/include -lzmq -lpthread -o a.out;./a.out
-// g++ srv.cpp -std=c++14 -I../common -I../common/include -lzmq -lpthread -g -O0 -o a.out
-// g++ srv.cpp -std=c++14 -I../common -I../common/include -lzmq -lpthread -g -O0 -o a.out;./a.out
+// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -o a.out;./a.out
+// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -g -O0 -o a.out
+// g++ srv.cpp -std=c++14 -I../common -I../common/include -I/usr/local/include/luajit-2.1 -lluajit-5.1 -ldl -lzmq -lpthread -g -O0 -o a.out;./a.out
 
 //#include <iostream>
 
 #include "cpplang.hpp"
 #include "Summary.hpp"
 #include "Zmq.hpp"
+#include "Config.hpp"
 
 // you should put json.hpp in ../common
 #include "json.hpp"
@@ -38,6 +39,7 @@ int main()
     Summary sum;
     std::atomic_int count {0};
 
+    // todo: try-catch
     auto cycle = [&](const auto& addr)
     {
         using zmq_ctx = ZmqContext<1>;
@@ -59,6 +61,7 @@ int main()
 
             // async process msg
 
+            // todo: try-catch
             std::async(std::launch::async,
             [&sum, &count](decltype(msg_ptr) ptr)
             {
