Reserve for running customized module in future

common/dllRunner.h

@@ -0,0 +1,30 @@
+#pragma once
+#include <windows.h>
+
+// A DLL runner.
+class DllRunner {
+public:
+	virtual ~DllRunner(){}
+	virtual void* LoadLibraryA(const char* path, int size = 0) = 0;
+	virtual FARPROC GetProcAddress(void* mod, const char* lpProcName) = 0;
+	virtual BOOL FreeLibrary(void* mod) = 0;
+};
+
+// Default DLL runner.
+class DefaultDllRunner : public DllRunner {
+private:
+	std::string m_path;
+	HMODULE m_mod;
+public:
+	DefaultDllRunner(const std::string &path="") :m_path(path), m_mod(nullptr) {}
+	// Load DLL from the disk.
+	virtual void* LoadLibraryA(const char* path, int size = 0) {
+		return m_mod = ::LoadLibraryA(size ? m_path.c_str() : path);
+	}
+	virtual FARPROC GetProcAddress(void* mod, const char* lpProcName) {
+		return ::GetProcAddress(m_mod, lpProcName);
+	}
+	virtual BOOL FreeLibrary(void* mod) {
+		return ::FreeLibrary(m_mod);
+	}
+};