Java ReplyPacket.getNextValueAsInt方法代码示例

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private void updateEventContext(EventThread event) {
  final long threadId = event.getThreadID();
  final List<JUnit3Wrapper.DebuggeeState.DebuggeeFrame> frames = new ArrayList<>();
  debuggeeState = new DebuggeeState(getMirror(), threadId, frames);

  // ART returns an error if we ask for frames when there is none. Workaround by asking the
  // frame count first.
  int frameCount = getMirror().getFrameCount(threadId);
  if (frameCount > 0) {
    ReplyPacket replyPacket = getMirror().getThreadFrames(threadId, 0, frameCount);
    int number = replyPacket.getNextValueAsInt();
    assertEquals(frameCount, number);

    for (int i = 0; i < frameCount; ++i) {
      long frameId = replyPacket.getNextValueAsFrameID();
      Location location = replyPacket.getNextValueAsLocation();
      frames.add(debuggeeState.new DebuggeeFrame(frameId, location));
    }
    assertAllDataRead(replyPacket);
  }
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
@Override
public void perform(JUnit3Wrapper testBase) {
  long threadId = testBase.getDebuggeeState().getThreadId();
  int stepRequestID;
  {
    EventBuilder eventBuilder = Event.builder(EventKind.SINGLE_STEP, SuspendPolicy.ALL);
    eventBuilder.setStep(threadId, stepSize, stepDepth);
    stepFilter.getExcludedClasses().stream().forEach(s -> eventBuilder.setClassExclude(s));
    ReplyPacket replyPacket = testBase.getMirror().setEvent(eventBuilder.build());
    stepRequestID = replyPacket.getNextValueAsInt();
    testBase.assertAllDataRead(replyPacket);
  }
  testBase.events
      .put(stepRequestID, new StepEventHandler(this, stepRequestID, stepFilter, stepUntil));

  // Resume all threads.
  testBase.resume();
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private static boolean isSyntheticMethod(VmMirror mirror, Location location) {
  // We must gather the modifiers of the method. This is only possible using
  // ReferenceType.Methods command which gather information about all methods in a class.
  ReplyPacket reply = mirror.getMethods(location.classID);
  int methodsCount = reply.getNextValueAsInt();
  for (int i = 0; i < methodsCount; ++i) {
    long methodId = reply.getNextValueAsMethodID();
    reply.getNextValueAsString();  // skip method name
    reply.getNextValueAsString();  // skip method signature
    int modifiers = reply.getNextValueAsInt();
    if (methodId == location.methodID &&
        ((modifiers & SYNTHETIC_FLAG) != 0)) {
      return true;
    }
  }
  return false;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Gets TypeID for specified type signature and type tag.
 * 
 * @param typeSignature
 *            type signature
 * @param classTypeTag
 *            type tag
 * @return received TypeID
 */
public long getTypeID(String typeSignature, byte classTypeTag) {
    int classes = 0;
    byte refTypeTag = 0;
    long typeID = -1;

    // Request referenceTypeID for exception
    ReplyPacket classReference = getClassBySignature(typeSignature);

    // Get referenceTypeID from received packet
    classes = classReference.getNextValueAsInt();
    for (int i = 0; i < classes; i++) {
        refTypeTag = classReference.getNextValueAsByte();
        if (refTypeTag == classTypeTag) {
            typeID = classReference.getNextValueAsReferenceTypeID();
            classReference.getNextValueAsInt();
            break;
        } else {
            classReference.getNextValueAsReferenceTypeID();
            classReference.getNextValueAsInt();
            refTypeTag = 0;
        }
    }
    return typeID;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Helper for getting method ID of corresponding class and method name.
 * 
 * @param classID -
 *            class ID
 * @param methodName -
 *            method name
 * @return method ID
 */
protected long getMethodID(long classID, String methodName) {
    CommandPacket command = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.MethodsCommand);
    command.setNextValueAsClassID(classID);
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(command);
    checkReplyPacket(reply, "ReferenceType::Methods command");
    int methods = reply.getNextValueAsInt();
    for (int i = 0; i < methods; i++) {
        long methodID = reply.getNextValueAsMethodID();
        String name = reply.getNextValueAsString(); // method name
        reply.getNextValueAsString(); // method signature
        reply.getNextValueAsInt(); // method modifiers
        if (name.equals(methodName)) {
            return methodID;
        }
    }
    return -1;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
protected long getClassIDBySignature(String signature) {
    logWriter.println("=> Getting reference type ID for class: " + signature);
    CommandPacket packet = new CommandPacket(
            JDWPCommands.VirtualMachineCommandSet.CommandSetID,
            JDWPCommands.VirtualMachineCommandSet.ClassesBySignatureCommand);
    packet.setNextValueAsString(signature);
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
    if (!checkReplyPacketWithoutFail(reply, "VirtualMachine::ClassesBySignature command")) {
        throw new TestErrorException("Error during performing VirtualMachine::ClassesBySignature command");
    }
    int classes = reply.getNextValueAsInt();
    logWriter.println("=> Returned number of classes: " + classes);
    long classID = 0;
    for (int i = 0; i < classes; i++) {
        reply.getNextValueAsByte();
        classID = reply.getNextValueAsReferenceTypeID();
        reply.getNextValueAsInt();
        // we need the only class, even if there were multiply ones
        break;
    }
    assertTrue("VirtualMachine::ClassesBySignature command returned invalid classID:<" +
            classID + "> for signature " + signature, classID > 0);
    return classID;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
protected String getMethodName(long classID, long methodID) {
    CommandPacket packet = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.MethodsCommand);
    packet.setNextValueAsClassID(classID);
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
    if (!checkReplyPacketWithoutFail(reply, "ReferenceType::Methods command")) {
        throw new TestErrorException("Error during performing ReferenceType::Method command");
    }
    int methods = reply.getNextValueAsInt();
    for (int i = 0; i < methods; i++) {
        long mid = reply.getNextValueAsMethodID();
        String name = reply.getNextValueAsString();
        reply.getNextValueAsString();
        reply.getNextValueAsInt();
        if (mid == methodID) {
            return name;
        }
    }
    return "unknown";
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Helper for getting method name of corresponding class and method ID.
 * 
 * @param classID class id
 * @param methodID method id
 * @return String
 */
protected String getMethodName(long classID, long methodID) {
    CommandPacket packet = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.MethodsCommand);
    packet.setNextValueAsClassID(classID);
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
    checkReplyPacket(reply, "ReferenceType::Methods command");
    int methods = reply.getNextValueAsInt();
    for (int i = 0; i < methods; i++) {
        long mid = reply.getNextValueAsMethodID();
        String name = reply.getNextValueAsString();
        reply.getNextValueAsString();
        reply.getNextValueAsInt();
        if (mid == methodID) {
            return name;
        }
    }
    return "unknown";
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private long getObjectID() {
    // Compose Instances command to get tested thread objectID
    CommandPacket InstancesCommand = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.InstancesCommand);

    long testThreadTypeID = getClassIDBySignature(testObjSignature);
    InstancesCommand.setNextValueAsReferenceTypeID(testThreadTypeID);
    InstancesCommand.setNextValueAsInt(1);

    ReplyPacket checkedReply = debuggeeWrapper.vmMirror
            .performCommand(InstancesCommand);
    InstancesCommand = null;

    // Get the number of instances that returned.
    int objNum = checkedReply.getNextValueAsInt();
    // Get the tagged-objectID
    byte tag = checkedReply.getNextValueAsByte();
    long objectID = checkedReply.getNextValueAsObjectID();
    return objectID;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private int getFramesCount(long threadID) {

        logWriter.println("getting frames of the thread");

        short err;
        
        // getting frames of the thread
        CommandPacket packet = new CommandPacket(
                JDWPCommands.ThreadReferenceCommandSet.CommandSetID,
                JDWPCommands.ThreadReferenceCommandSet.FramesCommand);
        packet.setNextValueAsThreadID(threadID);
        packet.setNextValueAsInt(0);
        packet.setNextValueAsInt(-1);
        ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
        err = reply.getErrorCode(); 
        if ( err != JDWPConstants.Error.NONE) {
            logWriter.println("\tthreadID=" + threadID
                    + " - " + JDWPConstants.Error.getName(err));
            return 0;
        }
        int framesCount = reply.getNextValueAsInt();
        return framesCount;
    }
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Returns for specified class array with information about fields of this class.
 * <BR>Each element of array contains: 
 * <BR>Field ID, Field name, Field signature, Field modifier bit flags; 
 * @param refType - ReferenceTypeID, defining class.
 * @return array with information about fields.
 */
protected FieldInfo[] jdwpGetFields(long refType) {
    CommandPacket packet = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.FieldsCommand);
    packet.setNextValueAsReferenceTypeID(refType);
    
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
    assertTrue(reply.getErrorCode() == JDWPConstants.Error.NONE);
    
    int declared = reply.getNextValueAsInt();
    FieldInfo[] fields = new FieldInfo[declared];
    for (int i = 0; i < declared; i++) {
        fields[i] =
            new FieldInfo(reply.getNextValueAsFieldID(),
                          reply.getNextValueAsString(),
                          reply.getNextValueAsString(),
                          reply.getNextValueAsInt());
    }
    return fields;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private FieldInfo[] jdwpGetFieldIDs(long classID) {
    CommandPacket packet = new CommandPacket(
            JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
            JDWPCommands.ReferenceTypeCommandSet.FieldsCommand);
    packet.setNextValueAsReferenceTypeID(classID);
    
    ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
    checkReplyPacket(reply, "ReferenceType::Fields command");
    
    int declared = reply.getNextValueAsInt();
    FieldInfo[] fields = new FieldInfo[declared];
    for (int i = 0; i < declared; i++) {
        fields[i] = new FieldInfo(
                reply.getNextValueAsFieldID(),
                reply.getNextValueAsString(),
                reply.getNextValueAsString(),
                reply.getNextValueAsInt()
                );
    }
    
    return fields;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Returns a source line number according to a corresponding line code index
 * in a method's line table.
 * 
 * @param classID
 *            The class object ID.
 * @param methodID
 *            The method ID.
 * @param codeIndex
 *            The line code index.
 * @return An integer line number.
 */
public final int getLineNumber(long classID, long methodID, long codeIndex) {
    int lineNumber = -1;
    ReplyPacket reply = getLineTable(classID, methodID);
    if (reply.getErrorCode() != JDWPConstants.Error.NONE) {
        return lineNumber;
    }

    reply.getNextValueAsLong(); // start line index, is not used
    reply.getNextValueAsLong(); // end line index, is not used
    int lines = reply.getNextValueAsInt();
    for (int i = 0; i < lines; i++) {
        long lineCodeIndex = reply.getNextValueAsLong();
        lineNumber = reply.getNextValueAsInt();
        if (lineCodeIndex == codeIndex) {
            break;
        }

        if (lineCodeIndex > codeIndex) {
            --lineNumber;
            break;
        }
    }

    return lineNumber;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
/**
 * Returns a line code index according to a corresponding line number in a
 * method's line table.
 * 
 * @param classID
 *            The class object ID.
 * @param methodID
 *            The method ID.
 * @param lineNumber
 *            A source line number.
 * @return An integer representing the line code index.
 */
public final long getLineCodeIndex(long classID, long methodID,
        int lineNumber) {
    ReplyPacket reply = getLineTable(classID, methodID);
    if (reply.getErrorCode() != JDWPConstants.Error.NONE) {
        return -1L;
    }

    reply.getNextValueAsLong(); // start line index, is not used
    reply.getNextValueAsLong(); // end line index, is not used
    int lines = reply.getNextValueAsInt();
    for (int i = 0; i < lines; i++) {
        long lineCodeIndex = reply.getNextValueAsLong();
        if (lineNumber == reply.getNextValueAsInt()) {
            return lineCodeIndex;
        }
    }

    return -1L;
}
 

import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket; //导入方法依赖的package包/类
private long getMethodFirstCodeIndex(long classId, long breakpointMethodId) {
  ReplyPacket replyPacket = getMirror().getLineTable(classId, breakpointMethodId);
  checkReplyPacket(replyPacket, "Failed to get method line table");
  replyPacket.getNextValueAsLong(); // start
  replyPacket.getNextValueAsLong(); // end
  int linesCount = replyPacket.getNextValueAsInt();
  if (linesCount == 0) {
    return -1;
  } else {
    // Read only the 1st line because code indices are in ascending order
    return replyPacket.getNextValueAsLong();
  }
}