net.grinder.util
Interface Sleeper

All Superinterfaces:

TimeAuthority

All Known Implementing Classes:

SleeperImplementation

public interface Sleeper
extends TimeAuthority

Something that can sleep.

Author:

Philip Aston

Nested Class Summary

static class

Sleeper.ShutdownException Exception used to indicate that a Sleeper has been shutdown.

Method Summary

void	shutdown() Shutdown this Sleeper.
void	sleepFlat(long maximumTime) Sleep for a time based on the maximumTime parameter.
void	sleepNormal(long meanTime) Sleep for a time based on the meanTime parameter.
void	sleepNormal(long meanTime, long sigma) Sleep for a random time drawn from a pseudo normal distribution.

Methods inherited from interface net.grinder.util.TimeAuthority

getTimeInMilliseconds

Method Detail

shutdown

void shutdown()

Shutdown this Sleeper. Once called, all sleep method invocations will throw Sleeper.ShutdownException, including those already sleeping.

sleepNormal

void sleepNormal(long meanTime)
                 throws Sleeper.ShutdownException

Sleep for a time based on the meanTime parameter. The actual time is taken from a pseudo normal distribution. Approximately 99.75% of times will be within (100* limit9975Factor) percent of the meanTime.

Parameters:

meanTime - Mean time.

Throws:

Sleeper.ShutdownException - If this Sleeper has been shutdown.

sleepNormal

void sleepNormal(long meanTime,
                 long sigma)
                 throws Sleeper.ShutdownException

Sleep for a random time drawn from a pseudo normal distribution.

Parameters:

meanTime - Mean time.

sigma - Standard deviation.

Throws:

Sleeper.ShutdownException - If this Sleeper has been shutdown.

sleepFlat

void sleepFlat(long maximumTime)
               throws Sleeper.ShutdownException

Sleep for a time based on the maximumTime parameter. The actual time is taken from a pseudo random flat distribution between 0 and maximumTime.

Parameters:

maximumTime - Maximum time.

Throws:

Sleeper.ShutdownException - If this Sleeper has been shutdown.