jist.swans.app.lang
Class SimtimeThread

java.lang.Object
  jist.swans.app.lang.SimtimeThread

All Implemented Interfaces:

JistAPI.Proxiable, JistAPI.Timeless, ThreadInterface

public class SimtimeThread
extends java.lang.Object
implements ThreadInterface, JistAPI.Proxiable

SWANS simulation time implementation of a Java thread. Note that this thread implementation differs from the Java specification. 1. It is cooperative (not pre-emptive), since we are optimizing for throughput, not concurrency. Use the yield() command. Theoretically, these can be weaved into the code automatically, but at a performance cost. Again, throughput performance was considered to be more important than transparency in this case. 2. Implementation of daemon modes, thread priority, class loader, security contexts, interrupts, suspend/resume/stop, thread groups, and subclassing of the base thread class are not supported in the current implementation. They can be added later, or provided in alternative simulation time thread implementation. 3. Note that in this implementation each sleep/yield performs a blocking sleep, thus incurring two blocking simulation events.

Since:

SWANS1.0

Constructor Summary

SimtimeThread()

SimtimeThread(java.lang.Runnable target)

SimtimeThread(java.lang.Runnable target, java.lang.String name)

SimtimeThread(java.lang.String name)

SimtimeThread(java.lang.ThreadGroup group, java.lang.Runnable target)

SimtimeThread(java.lang.ThreadGroup group, java.lang.Runnable target, java.lang.String name)

SimtimeThread(java.lang.ThreadGroup group, java.lang.String name)

Method Summary

static SimtimeThread	currentThread()
java.lang.String	getName()
static void	InitializeApplicationContext(AppInterface.ThreadedApp app)
boolean	isAlive()
void	join()
void	setName(java.lang.String name)
static void	sleep(long millis)
static void	sleep(long millis, int nanos)
void	start()
void	ThreadJoin()
void	ThreadRun()
java.lang.String	toString()
static void	yield()

Methods inherited from class java.lang.Object

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

Constructor Detail

SimtimeThread

public SimtimeThread()

SimtimeThread

public SimtimeThread(java.lang.Runnable target)

SimtimeThread

public SimtimeThread(java.lang.ThreadGroup group,
                     java.lang.Runnable target)

SimtimeThread

public SimtimeThread(java.lang.String name)

SimtimeThread

public SimtimeThread(java.lang.ThreadGroup group,
                     java.lang.String name)

SimtimeThread

public SimtimeThread(java.lang.Runnable target,
                     java.lang.String name)

SimtimeThread

public SimtimeThread(java.lang.ThreadGroup group,
                     java.lang.Runnable target,
                     java.lang.String name)

Method Detail

InitializeApplicationContext

public static void InitializeApplicationContext(AppInterface.ThreadedApp app)

currentThread

public static SimtimeThread currentThread()

isAlive

public boolean isAlive()

start

public void start()

ThreadRun

public void ThreadRun()

Specified by:

ThreadRun in interface ThreadInterface

setName

public void setName(java.lang.String name)

getName

public java.lang.String getName()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

yield

public static void yield()

sleep

public static void sleep(long millis)

sleep

public static void sleep(long millis,
                         int nanos)

join

public void join()

ThreadJoin

public void ThreadJoin()
                throws JistAPI.Continuation

Specified by:

ThreadJoin in interface ThreadInterface

Throws:

JistAPI.Continuation