Package org.spf4j.zel.vm

Class ExecutionContext

java.lang.Object

org.spf4j.zel.vm.ExecutionContext

All Implemented Interfaces:

Callable<Object>, VMExecutor.Suspendable<Object>

@ParametersAreNonnullByDefault
public final class ExecutionContext
extends Object
implements VMExecutor.Suspendable<Object>

Virtual Machine Execution Context

Author:

zoly

Field Summary

Fields

Modifier and Type	Field	Description
static Object	VOID

Constructor Summary

Constructors

Constructor	Description
ExecutionContext(Program program, Object[] globalMem, Object[] localMem, ProcessIO io, VMExecutor execService)

Method Summary

Modifier and Type	Method	Description
Object	call()
Object	executeAsync()
Object	executeSyncOrAsync()
VMExecutor	getExecService()
ProcessIO	getIo()
MathContext	getMathContext()
Object[]	getMem()
int	getNrStackVals()
Program	getProgram()
ResultCache	getResultCache()
ExecutionContext	getSubProgramContext(Program program, int nrParams)
List<VMFuture<Object>>	getSuspendedAt()
ExecutionContext	getSyncSubProgramContext(Program program, int nrParams)
ExecutionContext	getSyncSubProgramContext(Program program, Object[] parameters)
Object	globalPeek(int addr)
void	globalPoke(int addr, Object value)
void	incrementInstructionPointer()
boolean	isChildContext()
boolean	isStackEmpty()
Object	localPeek(int addr)
void	localPoke(int addr, Object value)
JavaMethodCall	newJavaCall(Object object, String method)
Object	peek()
Object	peekFromTop(int n)
Object	peekSyncStackVal()
Object	pop()
Object	popFirstAvail(int nr)
Object	popStackVal()
Object[]	popStackVals(int nvals)
void	popStackVals(Object[] to, int nvals)
Object	popSyncStackVal()	pops object out of stack
Object[]	popSyncStackVals(int nvals)
void	popSyncStackVals(Object[] vals)
void	popSyncStackVals(Object[] vals, int l)
void	push(Object obj)
void	pushNull()
void	setMathContext(MathContext mathContext)
void	suspend(List<VMFuture<Object>> futures)
void	suspend(VMFuture<Object> future)
void	syncStackVal()
void	syncStackVals()
void	terminate()
String	toString()
Object[]	tuple()

Methods inherited from class java.lang.Object

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

Field Detail

VOID

public static final Object VOID

Constructor Detail

ExecutionContext

public ExecutionContext(Program program,
                        Object[] globalMem,
                        Object[] localMem,
                        @Nullable
                        ProcessIO io,
                        @Nullable
                        VMExecutor execService)

Method Detail

getIo

public ProcessIO getIo()

newJavaCall

public JavaMethodCall newJavaCall(Object object,
                                  String method)

getMem

public Object[] getMem()

globalPoke

public void globalPoke(int addr,
                       Object value)

localPoke

public void localPoke(int addr,
                      Object value)

localPeek

public Object localPeek(int addr)

globalPeek

public Object globalPeek(int addr)

getProgram

public Program getProgram()

incrementInstructionPointer

public void incrementInstructionPointer()

terminate

public void terminate()

executeSyncOrAsync

public Object executeSyncOrAsync()
                          throws ExecutionException,
                                 InterruptedException

Throws:

ExecutionException

InterruptedException

executeAsync

public Object executeAsync()
                    throws ExecutionException,
                           InterruptedException

Throws:

ExecutionException

InterruptedException

suspend

public void suspend(VMFuture<Object> future)
             throws SuspendedException

Throws:

SuspendedException

suspend

public void suspend(List<VMFuture<Object>> futures)
             throws SuspendedException

Throws:

SuspendedException

call

public Object call()
            throws ExecutionException,
                   InterruptedException,
                   SuspendedException

Specified by:

call in interface Callable<Object>

Specified by:

call in interface VMExecutor.Suspendable<Object>

Throws:

ExecutionException

InterruptedException

SuspendedException

getSuspendedAt

public List<VMFuture<Object>> getSuspendedAt()

Specified by:

getSuspendedAt in interface VMExecutor.Suspendable<Object>

popSyncStackVal

public Object popSyncStackVal()
                       throws SuspendedException,
                              ExecutionException

pops object out of stack

Returns:

Object

Throws:

SuspendedException

ExecutionException

peekSyncStackVal

public Object peekSyncStackVal()
                        throws SuspendedException,
                               ExecutionException

Throws:

SuspendedException

ExecutionException

syncStackVal

public void syncStackVal()
                  throws SuspendedException,
                         ExecutionException

Throws:

SuspendedException

ExecutionException

syncStackVals

public void syncStackVals()
                   throws SuspendedException,
                          ExecutionException

Throws:

SuspendedException

ExecutionException

popStackVals

public Object[] popStackVals(int nvals)

popStackVals

public void popStackVals(Object[] to,
                         int nvals)

popStackVal

public Object popStackVal()

getNrStackVals

public int getNrStackVals()

popSyncStackVals

public Object[] popSyncStackVals(int nvals)
                          throws SuspendedException,
                                 ExecutionException

Throws:

SuspendedException

ExecutionException

tuple

public Object[] tuple()

popSyncStackVals

public void popSyncStackVals(Object[] vals)
                      throws SuspendedException,
                             ExecutionException

Throws:

SuspendedException

ExecutionException

popSyncStackVals

public void popSyncStackVals(Object[] vals,
                             int l)
                      throws ExecutionException,
                             SuspendedException

Throws:

ExecutionException

SuspendedException

popFirstAvail

public Object popFirstAvail(int nr)
                     throws SuspendedException

Throws:

SuspendedException

pop

public Object pop()

push

public void push(@Nullable
                 Object obj)

pushNull

public void pushNull()

isStackEmpty

public boolean isStackEmpty()

peek

public Object peek()

peekFromTop

public Object peekFromTop(int n)

getSubProgramContext

public ExecutionContext getSubProgramContext(Program program,
                                             int nrParams)
                                      throws ExecutionException,
                                             SuspendedException

Throws:

ExecutionException

SuspendedException

getSyncSubProgramContext

public ExecutionContext getSyncSubProgramContext(Program program,
                                                 int nrParams)
                                          throws ExecutionException,
                                                 SuspendedException

Throws:

ExecutionException

SuspendedException

getSyncSubProgramContext

public ExecutionContext getSyncSubProgramContext(Program program,
                                                 Object[] parameters)

toString

public String toString()

Overrides:

toString in class Object

isChildContext

public boolean isChildContext()

getMathContext

@Nonnull
public MathContext getMathContext()

Returns:

the mathContext

setMathContext

public void setMathContext(@Nonnull
                           MathContext mathContext)

Parameters:

mathContext - the mathContext to set

getExecService

@Nullable
public VMExecutor getExecService()

Returns:

the execService

getResultCache

public ResultCache getResultCache()

Returns:

the resultCache