added barriers, started working on libraries

tier2/filesystem.cpp

@@ -1,6 +1,8 @@
+#include "tier1/utlbuffer.h"
 #include "tier2/ifilesystem.h"
 #include "tier1/interface.h"
 #include "tier0/lib.h"
+#include <cstdio>
 
 size_t IFileHandle::Write( const void *pData, size_t nDataSize )
 {
@@ -83,6 +85,15 @@ public:
 	{
 
 	}
+	virtual CUtlBuffer<unsigned char> Read( IFileHandle *pFile ) override
+	{
+		CUtlBuffer<unsigned char> buffer;
+		buffer = CUtlBuffer<unsigned char>(Size(pFile));
+
+		Read(pFile, buffer.GetMemory(), buffer.GetSize());
+		
+		return buffer;
+	}
 };