Timers

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January 2024

Tier0 Fast Timer

File: src\public\tier0\fasttimer.h

CFastTimer class

The functions contained in this class are quick to maximize timer accuracy. The timer can be started and ended with the member functions Start and Stop. It should be initialized as a nonpointer object.

CTimeScope class

This class calls the Start and End functions of a CFastTimer specified in the constructor. The Start and End functions are called in the constructor and destructor respectively.

CTimeAdder class

This class manages a member CFastTimer and adds the ending duration to a CCycleCount object specified in the constructor.

CLimitTimer class

Use this class to time whether a desired interval of time has passed.

CAverageCycleCounter class

This class manages an average time covered.

CAverageTimeMarker class

This class is a counter that iterates the CAverageCycleCounter specified in the constructor.

PROFILE_SCOPE(name)

This is a simple tool to support timing a block of code, and reporting the results on program exit.

UTIL Shared Timer

File: src\game_shared\util_shared.h

IntervalTimer class

This is a simple class for tracking intervals of game time. Upon creation, the timer is invalidated. To measure time intervals, start the timer via the Start function.

CountdownTimer class

This is a simple class for counting down a short interval of time. Upon creation, the timer is invalidated. Invalidated countdown timers are considered to have elapsed.

Client TimedEvent class

File: src\cl_dll\timedevent.h

This class triggers events at a specified rate. What it does is help manage a specific event over time.

Usage:

• Embed a nonpointer TimedEvent object into a class.
• On creation, call the object's Init function specifying the rate.
• In the Update function of a clientside entity class, use the following loop:

	float tempDelta = fTimeDelta;
	while( m_ParticleSpawn.NextEvent( tempDelta ) )

Undocumented classes

Todo: complete

• CTimedEventMgr
• CTimedEventQueue