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Java Source Code / Java Documentation » IDE Netbeans » cvsclient » org.netbeans.lib.profiler.instrumentation 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.netbeans.lib.profiler.instrumentation.SingleMethodScaner
      org.netbeans.lib.profiler.instrumentation.Injector

All known Subclasses:   org.netbeans.lib.profiler.instrumentation.ProfilePointHitCallInjector,  org.netbeans.lib.profiler.instrumentation.SpecialCallInjector,  org.netbeans.lib.profiler.instrumentation.CodeRegionEntryExitCallsInjector,  org.netbeans.lib.profiler.instrumentation.ObjLivenessInstrCallsInjector,  org.netbeans.lib.profiler.instrumentation.MethodEntryExitCallsInjector,
Injector
abstract public class Injector extends SingleMethodScaner (Code)
Base class for a number of classes performing concrete method instrumentation injections. Contains core functionality for injection of arbitrary bytecodes at a given location in a method and subsequent rewriting of bytecodes. Also supports appending bytecodes to the existing bytecodes, and extending the method's exception table.
author:
   Misha Dmitriev


Field Summary
protected  intbaseCPoolCount
    
protected  intexcTableEntryCount
    
protected  byte[]exceptionTable
    
protected  intmaxLocals
    
protected  intmaxStack
    
protected  intorigBytecodesLength
    
protected  intorigExcTableEntryCount
    

Constructor Summary
protected  Injector()
    
protected  Injector(ClassInfo clazz, int methodIdx)
     Creates a new Injector for the specified method.

Method Summary
protected  voidaddExceptionTableEntry(int startPC, int endPC, int handlerPC, int typeCPIndex)
    
protected  voidappendCode(byte[] appendedBytes, int appendedBytesCount)
    
protected  byte[]createPackedMethodInfo()
    
 voidhandleJumpWiden(int bci, int delta)
    
protected  voidinjectCodeAndRewrite(byte[] injectedBytes, int injectedBytesCount, int injectionPos, boolean injectionBindsToFollowingInstruction)
     Injects the specified raw bytes array at the specified location. The last parameter indicates whether the injected code should be bound to the following (if true) or previous (if false) bytecode instruction.
protected  voidinsertProfilingPoints(RuntimeProfilingPoint[] points, int ppHitCPMethodIdx)
     Profiling points MUST BE already SORTED by BCI in ascending order and only relevant to this method.
abstract public  byte[]instrumentMethod()
    

Field Detail
baseCPoolCount
protected int baseCPoolCount(Code)



excTableEntryCount
protected int excTableEntryCount(Code)



exceptionTable
protected byte[] exceptionTable(Code)



maxLocals
protected int maxLocals(Code)



maxStack
protected int maxStack(Code)



origBytecodesLength
protected int origBytecodesLength(Code)



origExcTableEntryCount
protected int origExcTableEntryCount(Code)




Constructor Detail
Injector
protected Injector()(Code)



Injector
protected Injector(ClassInfo clazz, int methodIdx)(Code)
Creates a new Injector for the specified method. Subsequently one can call injectCodeAndRewrite() and other methods below as many times as needed.




Method Detail
addExceptionTableEntry
protected void addExceptionTableEntry(int startPC, int endPC, int handlerPC, int typeCPIndex)(Code)



appendCode
protected void appendCode(byte[] appendedBytes, int appendedBytesCount)(Code)



createPackedMethodInfo
protected byte[] createPackedMethodInfo()(Code)



handleJumpWiden
void handleJumpWiden(int bci, int delta)(Code)
Called by the ChangeJumpWiden class



injectCodeAndRewrite
protected void injectCodeAndRewrite(byte[] injectedBytes, int injectedBytesCount, int injectionPos, boolean injectionBindsToFollowingInstruction)(Code)
Injects the specified raw bytes array at the specified location. The last parameter indicates whether the injected code should be bound to the following (if true) or previous (if false) bytecode instruction. When binding to the following instruction, all jumps that target that instruction will target the injected code after rewriting. When binding to the previous instruction x, all jumps that target the instruction x+1 will still target that instruction after rewriting (i.e. not target our injected code, as in the first case).



insertProfilingPoints
protected void insertProfilingPoints(RuntimeProfilingPoint[] points, int ppHitCPMethodIdx)(Code)
Profiling points MUST BE already SORTED by BCI in ascending order and only relevant to this method.
Parameters:
  points - sorted array of Profiling points
Parameters:
  ppHitCPMethodIdx -



instrumentMethod
abstract public byte[] instrumentMethod()(Code)
In concrete subclasses, should do all the real work on method instrumentation and return the updated packed methodInfo



Fields inherited from org.netbeans.lib.profiler.instrumentation.SingleMethodScaner
protected byte[] bytecodes(Code)(Java Doc)
protected int bytecodesLength(Code)(Java Doc)
protected int bytecodesStartIdx(Code)(Java Doc)
protected ClassInfo clazz(Code)(Java Doc)
protected int methodIdx(Code)(Java Doc)
protected byte[] origMethodInfo(Code)(Java Doc)

Methods inherited from org.netbeans.lib.profiler.instrumentation.SingleMethodScaner
protected static int align(int n)(Code)(Java Doc)
protected int getByte(int pos)(Code)(Java Doc)
protected int getInt(int pos)(Code)(Java Doc)
protected short getShort(int pos)(Code)(Java Doc)
protected static int getU2(byte[] buf, int pos)(Code)(Java Doc)
protected int getU2(int pos)(Code)(Java Doc)
protected static int getU4(byte[] buf, int pos)(Code)(Java Doc)
protected int getU4(int pos)(Code)(Java Doc)
protected void initBytecodesArray()(Code)(Java Doc)
protected int opcodeLength(int bci)(Code)(Java Doc)
protected static void putByte(byte[] buf, int pos, int value)(Code)(Java Doc)
protected void putInt(int pos, int value)(Code)(Java Doc)
protected void putShort(int pos, short value)(Code)(Java Doc)
protected static void putU2(byte[] buf, int pos, int value)(Code)(Java Doc)
protected static void putU4(byte[] buf, int pos, int value)(Code)(Java Doc)
protected void putU4(int pos, int value)(Code)(Java Doc)
public void setClassAndMethod(ClassInfo clazz, int methodIdx)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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