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gcsdk/jobtime.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Encapsultes the job system's version of time (which is != to wall clock time)
+//
+//=============================================================================
+
+#include "stdafx.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+namespace GCSDK
+{
+
+uint64 CJobTime::sm_lTimeCur = 0;
+
+//-----------------------------------------------------------------------------
+// Purpose: Constructor
+//-----------------------------------------------------------------------------
+CJobTime::CJobTime() 
+{ 
+	m_lTime = sm_lTimeCur; 
+}
+
+
+//----------------------------------------------------------------------------
+// Purpose: Sets our value to the current time
+//-----------------------------------------------------------------------------
+void CJobTime::SetToJobTime()
+{
+	m_lTime = sm_lTimeCur;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Sets our value as an offset from the current time
+//-----------------------------------------------------------------------------
+void CJobTime::SetFromJobTime( int64 dMicroSecOffset )
+{
+	m_lTime = sm_lTimeCur + dMicroSecOffset;
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Returns the amount of time that's passed between our time and the
+//			current time.
+// Output:	Time that's passed between our time and the current time
+//-----------------------------------------------------------------------------
+int64 CJobTime::CServerMicroSecsPassed() const
+{
+	return( sm_lTimeCur - m_lTime );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Updates our current time value.  We only
+//			update the time once per frame-- the rest of the time, we just
+//			access a cached copy of the time.  On the server, we use an arbitrary
+//			time value beginning at 0, and incremented by 50 milliseconds every
+//			frame.  
+//			NOTE: This should only be called once per frame.
+//-----------------------------------------------------------------------------
+void CJobTime::UpdateJobTime( int cMicroSecPerShellFrame )
+{
+	sm_lTimeCur += cMicroSecPerShellFrame; // force a 50 msec clock
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Stomps the current clock with the specified time
+// Input  : lCurrentTime - new current time
+//-----------------------------------------------------------------------------
+void CJobTime::SetCurrentJobTime( uint64 lCurrentTime )
+{
+	sm_lTimeCur = lCurrentTime;
+}
+
+} // namespace GCSDK