uka.karmi.rmi
Class GlobalSynchronization

java.lang.Object
  uka.karmi.rmi.GlobalSynchronization

public abstract class GlobalSynchronization

extends java.lang.Object

Field Summary

static int	CHILDS_LOCKED
static int	CHILDS_UNLOCKED
protected CallHandler	handler
static int	LOCK_CHILDS
static int	LOCK_ROOT
static int	ROOT_LOCKED
static int	SIBLINGS_LOCKED
static int	SIBLINGS_UNLOCKED
protected long	tid
static int	UNLOCK_CHILDS
static int	UNLOCK_PARENT

Constructor Summary

GlobalSynchronization(long tid)

Method Summary

protected abstract java.lang.Object	getLocalLock()
protected abstract boolean	isRoot()
void	postLock()
void	postUnlock()
void	preLock() Main entry point for an application thread when requesting a global synchronization.
void	preUnlock()
void	processLockChilds()
void	processLockRoot(int childIdx)
protected abstract void	receiveAllChilds(int code)
protected abstract void	receiveChildNonBlocking(int idx, int code)
protected abstract void	receiveOtherChilds(int idx, int code)
protected abstract void	receiveParent(int code)
protected abstract void	receiveParentNonBlocking(int code)
protected void	release()
protected abstract void	sendAllChilds(int code)
protected abstract void	sendChild(int idx, int code)
protected abstract void	sendOtherChilds(int idx, int code)
protected abstract void	sendParent(int code)

Methods inherited from class java.lang.Object

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

Field Detail

LOCK_ROOT

public static final int LOCK_ROOT

See Also:

Constant Field Values

ROOT_LOCKED

public static final int ROOT_LOCKED

See Also:

Constant Field Values

LOCK_CHILDS

public static final int LOCK_CHILDS

See Also:

Constant Field Values

CHILDS_LOCKED

public static final int CHILDS_LOCKED

See Also:

Constant Field Values

SIBLINGS_LOCKED

public static final int SIBLINGS_LOCKED

See Also:

Constant Field Values

UNLOCK_PARENT

public static final int UNLOCK_PARENT

See Also:

Constant Field Values

SIBLINGS_UNLOCKED

public static final int SIBLINGS_UNLOCKED

See Also:

Constant Field Values

UNLOCK_CHILDS

public static final int UNLOCK_CHILDS

See Also:

Constant Field Values

CHILDS_UNLOCKED

public static final int CHILDS_UNLOCKED

See Also:

Constant Field Values

handler

protected CallHandler handler

tid

protected final long tid

Constructor Detail

GlobalSynchronization

public GlobalSynchronization(long tid)

Method Detail

getLocalLock

protected abstract java.lang.Object getLocalLock()

release

protected void release()
                throws java.io.IOException,
                       java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

preLock

public void preLock()
             throws java.io.IOException,
                    java.lang.ClassNotFoundException

Main entry point for an application thread when requesting a global synchronization. The pattern to request a global synchronization is the following:

 preLock()
   synchronized (this) {
     postLock()
     // code that requires global synchronization.
     preUnlock()
   }
 postUnlock()



Throws:
java.io.IOException
java.lang.ClassNotFoundException

postLock

public void postLock()
              throws java.io.IOException,
                     java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

See Also:

preLock()

preUnlock

public void preUnlock()
               throws java.io.IOException,
                      java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

See Also:

preLock()

postUnlock

public void postUnlock()
                throws java.io.IOException,
                       java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

See Also:

preLock()

processLockRoot

public void processLockRoot(int childIdx)
                     throws java.io.IOException,
                            java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

processLockChilds

public void processLockChilds()
                       throws java.io.IOException,
                              java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

isRoot

protected abstract boolean isRoot()

sendParent

protected abstract void sendParent(int code)
                            throws java.io.IOException,
                                   java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

receiveParent

protected abstract void receiveParent(int code)
                               throws java.io.IOException,
                                      java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

receiveParentNonBlocking

protected abstract void receiveParentNonBlocking(int code)
                                          throws java.io.IOException,
                                                 java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

sendChild

protected abstract void sendChild(int idx,
                                  int code)
                           throws java.io.IOException,
                                  java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

receiveChildNonBlocking

protected abstract void receiveChildNonBlocking(int idx,
                                                int code)
                                         throws java.io.IOException,
                                                java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

sendAllChilds

protected abstract void sendAllChilds(int code)
                               throws java.io.IOException,
                                      java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

receiveAllChilds

protected abstract void receiveAllChilds(int code)
                                  throws java.io.IOException,
                                         java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

sendOtherChilds

protected abstract void sendOtherChilds(int idx,
                                        int code)
                                 throws java.io.IOException,
                                        java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

receiveOtherChilds

protected abstract void receiveOtherChilds(int idx,
                                           int code)
                                    throws java.io.IOException,
                                           java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException