net.sourceforge.cobertura.instrument.pass3

Class AtomicArrayCodeProvider

java.lang.Object

net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider

net.sourceforge.cobertura.instrument.pass3.AtomicArrayCodeProvider

All Implemented Interfaces:

CodeProvider

public class AtomicArrayCodeProvider
extends AbstractCodeProvider
implements CodeProvider

The CodeProvider uses AtomicArrayCodeProvider to store counters.

This implementation is totally thread-safe, but significantly slower then FastArrayCodeProvider.

Author:

piotr.tabor@gmail.com

Nested Class Summary

Nested classes/interfaces inherited from class net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider

AbstractCodeProvider.Abcd

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static java.lang.String	COBERTURA_COUNTERS_FIELD_TYPE Type of the generated field, that is used to store counters

Fields inherited from class net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider

CLASSMAP_LISTENER_INTERNALNAME, FAKE_COUNTER_ID

Fields inherited from interface net.sourceforge.cobertura.instrument.pass3.CodeProvider

COBERTURA_CLASSMAP_METHOD_NAME, COBERTURA_COUNTERS_FIELD_NAME, COBERTURA_GET_AND_RESET_COUNTERS_METHOD_NAME, COBERTURA_INIT_METHOD_NAME

Constructor Summary

Constructors

Constructor and Description
AtomicArrayCodeProvider()

Method Summary

Modifier and Type	Method and Description
void	generateCINITmethod(org.objectweb.asm.MethodVisitor mv, java.lang.String className, int counters_cnt) Generates code that is injected into static constructor of an instrumented class.
void	generateCoberturaGetAndResetCountersMethod(org.objectweb.asm.ClassVisitor cv, java.lang.String className) int[] __cobertura_get_and_reset_counters() { int[] res = new int[counters.length()]; for(int i=0; i
void	generateCodeThatIncrementsCoberturaCounter(org.objectweb.asm.MethodVisitor nextMethodVisitor, java.lang.Integer counterId, java.lang.String className) Injects code that increments counter given by parameter.
void	generateCodeThatIncrementsCoberturaCounterFromInternalVariable(org.objectweb.asm.MethodVisitor nextMethodVisitor, int lastJumpIdVariableIndex, java.lang.String className) Injects code that increments counter given by internal variable.
void	generateCountersField(org.objectweb.asm.ClassVisitor cv) Generates fields injected into instrumented class by cobertura.

Methods inherited from class net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider

generateCallCoberturaInitMethod, generateCoberturaClassMapMethod, generateCoberturaInitMethod, generateCodeThatIncrementsCoberturaCounterIfVariableEqualsAndCleanVariable, generateCodeThatSetsJumpCounterIdVariable, generateCodeThatZeroJumpCounterIdVariable, generateRegisterClass

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sourceforge.cobertura.instrument.pass3.CodeProvider

generateCallCoberturaInitMethod, generateCoberturaClassMapMethod, generateCoberturaInitMethod, generateCodeThatIncrementsCoberturaCounterIfVariableEqualsAndCleanVariable, generateCodeThatSetsJumpCounterIdVariable, generateCodeThatZeroJumpCounterIdVariable

Field Detail

COBERTURA_COUNTERS_FIELD_TYPE

static final java.lang.String COBERTURA_COUNTERS_FIELD_TYPE

Type of the generated field, that is used to store counters

Constructor Detail

AtomicArrayCodeProvider

public AtomicArrayCodeProvider()

Method Detail

generateCountersField

public void generateCountersField(org.objectweb.asm.ClassVisitor cv)

Description copied from interface: CodeProvider

Generates fields injected into instrumented class by cobertura.

Specified by:

generateCountersField in interface CodeProvider

Parameters:

cv - - ClassVisitor that is listener of code-generation events

generateCINITmethod

public void generateCINITmethod(org.objectweb.asm.MethodVisitor mv,
                                java.lang.String className,
                                int counters_cnt)

Description copied from class: AbstractCodeProvider

Generates code that is injected into static constructor of an instrumented class. It is good place to initiate static fields inserted into a class (CodeProvider.generateCountersField(ClassVisitor)), or execute other code that should be executed when the class it used for the first time. Registering the class in TouchCollector would be a bright idea. It is expected that all counter will be set to zero after that operation.

Specified by:

generateCINITmethod in class AbstractCodeProvider

Parameters:

mv - - MethodVisitor that is listener of code-generation events

className - - internal name (asm) of class being instrumented

counters_cnt - - information about how many counters are expected to be used by instrumentation code. In most cases the method is responsible for allocating objects that will be used to store counters.

generateCodeThatIncrementsCoberturaCounter

public void generateCodeThatIncrementsCoberturaCounter(org.objectweb.asm.MethodVisitor nextMethodVisitor,
                                                       java.lang.Integer counterId,
                                                       java.lang.String className)

Description copied from interface: CodeProvider

Injects code that increments counter given by parameter.

Specified by:

generateCodeThatIncrementsCoberturaCounter in interface CodeProvider

Parameters:

nextMethodVisitor - - MethodVisitor that is listener of code-generation events

counterId - - counterId of counter that have to be incremented

className - - internal name (asm) of class being instrumented

generateCodeThatIncrementsCoberturaCounterFromInternalVariable

public void generateCodeThatIncrementsCoberturaCounterFromInternalVariable(org.objectweb.asm.MethodVisitor nextMethodVisitor,
                                                                           int lastJumpIdVariableIndex,
                                                                           java.lang.String className)

Description copied from interface: CodeProvider

Injects code that increments counter given by internal variable. The id of the variable is identified by lastJumpIdVariableIndex. The variable is in most cases set (by CodeProvider.generateCodeThatSetsJumpCounterIdVariable(MethodVisitor, int, int) to some counterId and in the target label, the counter identified by the variable is incremented. long

Specified by:

generateCodeThatIncrementsCoberturaCounterFromInternalVariable in interface CodeProvider

Parameters:

nextMethodVisitor - - MethodVisitor that is listener of code-generation events

lastJumpIdVariableIndex - - id of the variable used to store counterId that have to be incremented

className - - internal name (asm) of class being instrumented

generateCoberturaGetAndResetCountersMethod

public void generateCoberturaGetAndResetCountersMethod(org.objectweb.asm.ClassVisitor cv,
                                                       java.lang.String className)

          int[] __cobertura_get_and_reset_counters() {  
            int[] res = new int[counters.length()];
                for(int i=0; i

Specified by:

generateCoberturaGetAndResetCountersMethod in interface CodeProvider

Parameters:

cv - - listener used to inject the code