org.mmtk.utility.options

Class Threads

java.lang.Object

org.vmutil.options.Option

org.vmutil.options.IntOption

org.mmtk.utility.options.Threads

public final class Threads
extends IntOption

The number of GC threads to use for parallel collection. This is slightly unclean as the default value is not known at build time.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	valueSet Has a value been set?

Fields inherited from class org.vmutil.options.IntOption

defaultValue, value

Fields inherited from class org.vmutil.options.Option

ADDRESS_OPTION, BOOLEAN_OPTION, ENUM_OPTION, FLOAT_OPTION, INT_OPTION, MICROSECONDS_OPTION, PAGES_OPTION, RAW, READABLE, set, STRING_OPTION, XML

Constructor Summary

Constructors

Constructor and Description
Threads() Create the option.

Method Summary

Modifier and Type	Method and Description
void	setValue(int value) Return the number of threads to use, or delegate to the runtime if this has not been set.
void	updateDefaultValue(int defaultValue) Update the default value, only overriding value if no explicit value was set.
protected void	validate() Only accept values of 1 or higher.

Methods inherited from class org.vmutil.options.IntOption

getDefaultValue, getValue, setDefaultValue

Methods inherited from class org.vmutil.options.Option

fail, failIf, getDescription, getKey, getName, getNext, getType, warn, warnIf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

valueSet

private boolean valueSet

Has a value been set?

Constructor Detail

Threads

public Threads()

Create the option.

Method Detail

updateDefaultValue

public void updateDefaultValue(int defaultValue)

Update the default value, only overriding value if no explicit value was set.

Parameters:

defaultValue - The actual default value.

setValue

public void setValue(int value)

Return the number of threads to use, or delegate to the runtime if this has not been set.

Overrides:

setValue in class IntOption

Parameters:

value - The new value for the option.

validate

protected void validate()

Only accept values of 1 or higher.

Overrides:

validate in class Option