source-engine/gcsdk/jobtime.cpp

78 lines
2.6 KiB
C++
Raw Normal View History

2020-04-23 00:56:21 +08:00
//========= 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