Package org.web3d.vrml.renderer.common.input.movie

Class MovieDecoder.ControlThread

java.lang.Object

java.lang.Thread

org.web3d.vrml.renderer.common.input.movie.MovieDecoder.ControlThread

All Implemented Interfaces:

Runnable

Enclosing class:

MovieDecoder

public class MovieDecoder.ControlThread
extends Thread

This thread class consumes the action queue and executes actions on the processor.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.Builder, Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
ControlThread()	Constructor initializes the action queue and starts the thread.

Method Summary

Modifier and Type	Method	Description
void	add(MovieDecoder.Action action)	Adds an action to the tail of the action queue, and signals the thread.
void	finish()	Signals the control thread to shut down.
void	run()	Entry point for the control thread.
void	setState(int stateBit)	Called to set one or more state bits in the controlThread state field.
String	stateString(int state)	Debugging code returns a string representation of a state field
void	unsetState(int stateBit)	Called to clear one or more state bits in the controlThread state field.
boolean	waitForState(int wantState)	Short cut for waitForState(wantState,wantState).
boolean	waitForState(int wantState, int stateMask)	Waits until (state & stateMask) == wantState.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, isVirtual, join, join, join, join, ofPlatform, ofVirtual, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, sleep, start, startVirtualThread, stop, suspend, threadId, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Details

ControlThread

public ControlThread()

Constructor initializes the action queue and starts the thread.

Method Details

stateString

public String stateString(int state)

Debugging code returns a string representation of a state field

Parameters:

state -

Returns:

add

public void add(MovieDecoder.Action action)

Adds an action to the tail of the action queue, and signals the thread.

Parameters:

action - - action to be performed

finish

public void finish()

Signals the control thread to shut down. Pending actions will be discarded. This call returns immediately without waiting for the thread to terminate.

run

public void run()

Entry point for the control thread.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

waitForState

public boolean waitForState(int wantState)

Short cut for waitForState(wantState,wantState). Waits until the state bit is set and ignores all other bits.

Parameters:

wantState -

Returns:

waitForState

public boolean waitForState(int wantState,
 int stateMask)

Waits until (state & stateMask) == wantState. Callers must ensure that stateMask is a superset of wantState or the call will never be matched. Also, to work around some of the JMF bugs, we time out if the event doesn't happen within STATE_SEMAPHORE_TIMEOUT milliseconds. This is the minimum time it will wait. The actual delay may be longer.

Parameters:

wantState - - bit mask for bits you want set

stateMask - - bit mask for bits you want to check

Returns:

true if the state was matched, false if it timed out.

setState

public void setState(int stateBit)

Called to set one or more state bits in the controlThread state field. When the state changes, the controlThread will be notified if it is waiting for a state change.

Parameters:

stateBit - - the bit (or bits) to be set.

unsetState

public void unsetState(int stateBit)

Called to clear one or more state bits in the controlThread state field. When the state changes, the controlThread will be notified if it is waiting for a state change.

Parameters:

stateBit - - the bit (or bits) to be cleared.