engine
Class ValueChangeMonitor

java.lang.Object
  |
  +--engine.ValueChangeMonitor

class ValueChangeMonitor

extends java.lang.Object

implements Monitor

It's is a monitor that watches for the change of an expression, and then wakes up the associated thread (and, now and then, it gets stuck, i don't jnow why...)

Field Summary

(package private) BitVector	curValue
(package private) static int	EVT_CHANGE
(package private) static int	EVT_NEGEDGE
(package private) static int	EVT_POSEDGE
(package private) boolean	isOn
(package private) long	lastTime
(package private) BitVector	lastValue
(package private) int	mask
(package private) NameSpace	ns
(package private) Expression	target
(package private) java.lang.Object	waiter

Constructor Summary

(package private)

ValueChangeMonitor(NameSpace ns, Expression target, int mask)

Method Summary

(package private) void	attach(java.lang.Object semaphore)
(package private) void	consume()
(package private) void	detach()
(package private) boolean	isTriggd()
java.lang.String	toString()
void	trigger()

Methods inherited from class java.lang.Object

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

Field Detail

ns

NameSpace ns

target

Expression target

lastValue

BitVector lastValue

curValue

BitVector curValue

lastTime

long lastTime

waiter

java.lang.Object waiter

isOn

volatile boolean isOn

EVT_CHANGE

static final int EVT_CHANGE

EVT_POSEDGE

static final int EVT_POSEDGE

EVT_NEGEDGE

static final int EVT_NEGEDGE

mask

int mask

Constructor Detail

ValueChangeMonitor

ValueChangeMonitor(NameSpace ns,
                   Expression target,
                   int mask)

Method Detail

trigger

public void trigger()
             throws InterpretTimeException

Specified by:

trigger in interface Monitor

attach

void attach(java.lang.Object semaphore)

consume

void consume()

detach

void detach()

isTriggd

boolean isTriggd()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object