org.mmtk.vm

Class Lock

java.lang.Object

org.mmtk.vm.Lock

Direct Known Subclasses:

Lock

public abstract class Lock
extends Object

Simple, fair locks with deadlock detection.

Constructor Summary

Constructors

Constructor and Description
Lock()

Method Summary

Modifier and Type	Method and Description
abstract void	acquire() Try to acquire a lock and spin-wait until acquired.
abstract void	check(int w) Perform sanity checks on the lock.
abstract void	release() Release the lock by incrementing serving counter.
abstract void	setName(String str) Set the name of this lock instance

Methods inherited from class java.lang.Object

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

Constructor Detail

Lock

public Lock()

Method Detail

setName

public abstract void setName(String str)

Set the name of this lock instance

Parameters:

str - The name of the lock (for error output).

acquire

public abstract void acquire()

Try to acquire a lock and spin-wait until acquired.

check

public abstract void check(int w)

Perform sanity checks on the lock. For debugging.

Parameters:

w - Identifies the code location in the debugging output.

release

public abstract void release()

Release the lock by incrementing serving counter.