JanosVM v0.6.0 Java API Documentation: Class SignalSet
JanosVM v0.6.0 Java API

edu.utah.janosvm.kit.comm.amiga
Class SignalSet

java.lang.Object
  |
  +--edu.utah.janosvm.kit.comm.amiga.SignalSet

public final class SignalSet
extends java.lang.Object

A SignalSet is a JanosVM implementation of the Amiga's signal system. Basically, it provides a simple, low level, low bandwidth mechanism for threads to communicate with each other.


Field Summary
static int MAXIMUM_SIGNAL_COUNT
           
 
Constructor Summary
SignalSet()
           
 
Method Summary
 int allocate()
           
 void allocate(int bit)
           
 void release(int bit)
           
 long setSignal(long newMask)
           
 void signal(int bit)
           
 java.lang.String toString()
           
 long waitFor(long mask)
          Wait for one or more of the signals in the mask to be received.
 long waitFor(long mask, long timeout)
          Wait for one or more of the signals in the mask to be received, or for a timeout.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

MAXIMUM_SIGNAL_COUNT

public static final int MAXIMUM_SIGNAL_COUNT
Constructor Detail

SignalSet

public SignalSet()
Method Detail

allocate

public int allocate()
Returns:
A newly allocated signal number.
Throws:
Throws - an OutOfSignalsError if there are no more signal bits available.

allocate

public void allocate(int bit)
Parameters:
bit - Allocate the given signal bit.

release

public void release(int bit)
Parameters:
bit - Release the allocated signal bit.

waitFor

public long waitFor(long mask,
                    long timeout)
Wait for one or more of the signals in the mask to be received, or for a timeout.
Parameters:
mask - The mask of signals to wait on.
timeout - The number of milliseconds to wait for signals.
Returns:
The mask of signals received, which will be a subset of the `mask' parameter.

waitFor

public long waitFor(long mask)
Wait for one or more of the signals in the mask to be received.
Parameters:
mask - The mask of signals to wait on.
Returns:
The mask of signals received, which will be a subset of the `mask' parameter.

signal

public void signal(int bit)
Parameters:
bit - The signal bit number to send.

setSignal

public long setSignal(long newMask)

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

JanosVM v0.6.0 Java API

This documentation is Copyright (C) 2000-2002 The University of Utah. All Rights Reserved. See the documentation license for distribution terms and restrictions.
Documentation, software, and mailing lists for the JanosVM can be found at the Janos Project web page: http://www.cs.utah.edu/flux/janos/
Generated on Mar 17, 2002