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1 files changed, 56 insertions, 0 deletions

diff --git a/engine/dt_instrumentation.h b/engine/dt_instrumentation.h
new file mode 100644
index 0000000..10df2fa
--- /dev/null
+++ b/engine/dt_instrumentation.h
@@ -0,0 +1,56 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef DATATABLE_INSTRUMENTATION_H
+#define DATATABLE_INSTRUMENTATION_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "dt_recv_eng.h"
+#include "dt_encode.h"
+
+
+// Is instrumentation enabled?
+extern bool g_bDTIEnabled;
+
+
+// ------------------------------------------------------------------------------------------ // 
+// Instrumentation functions.
+// ------------------------------------------------------------------------------------------ // 
+
+// This is called at startup to enable instrumentation.
+void DTI_Init();
+
+// Calls DTI_Flush and cleans up.
+void DTI_Term();
+
+// This writes out the instrumentation file.
+void DTI_Flush();
+
+// Setup instrumentation on a CRecvDecoder.
+void DTI_HookRecvDecoder( CRecvDecoder *pDecoder );
+
+// Notify the instrumentation that a delta bit has been read.
+void DTI_HookDeltaBits( CRecvDecoder *pDecoder, int iProp, int nDataBits, int nIndexBits );
+
+
+
+// ------------------------------------------------------------------------------------------ // 
+// Inlines.
+// ------------------------------------------------------------------------------------------ // 
+
+inline void DTI_HookDeltaBits( CRecvDecoder *pDecoder, int iProp, int nDataBits, int nIndexBits )
+{
+	if( g_bDTIEnabled )
+	{
+		extern void _DTI_HookDeltaBits( CRecvDecoder *pDecoder, int iProp, int nDataBits, int nIndexBits );
+		_DTI_HookDeltaBits( pDecoder, iProp, nDataBits, nIndexBits );
+	}
+}
+
+#endif // DATATABLE_INSTRUMENTATION_H