opensim/OpenSim/Region/ExtensionsScriptModule/Engines/JVMEngine/JVM/Thread.cs

/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
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* modification, are permitted provided that the following conditions are met:
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*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
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*       documentation and/or other materials provided with the distribution.
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*       names of its contributors may be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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*/
using OpenSim.Region.Environment.Scenes;
using OpenSim.Region.ExtensionsScriptModule.JVMEngine.Types;
using OpenSim.Region.ExtensionsScriptModule.JVMEngine.Types.PrimitiveTypes;

namespace OpenSim.Region.ExtensionsScriptModule.JVMEngine.JVM
{
    public partial class Thread
    {
        // Is this smart?
        public static MainMemory GlobalMemory;
        public static Scene World;
        private int PC = 0;
        private Stack stack;
        private Interpreter m_Interpreter;
        public ClassRecord currentClass;
        public ClassInstance currentInstance;
        private StackFrame m_currentFrame;
        public int excutionCounter = 0;
        public bool running = false;

        public ScriptInfo scriptInfo;

        public Thread()
        {
            m_Interpreter = new Interpreter(this);
            stack = new Stack();
        }

        public void SetPC(int methodpointer)
        {
            //Console.WriteLine("Thread PC has been set to " + methodpointer);
            PC = methodpointer;
        }

        public void StartMethod(ClassRecord rec, string methName)
        {
            m_currentFrame = new StackFrame();
            stack.StackFrames.Push(m_currentFrame);
            currentClass = rec;
            currentClass.StartMethod(this, methName);
        }

        public void StartMethod(string methName)
        {
            m_currentFrame = new StackFrame();
            stack.StackFrames.Push(m_currentFrame);
            currentClass.StartMethod(this, methName);
        }

        public void JumpToStaticVoidMethod(string methName, int returnPC)
        {
            m_currentFrame = new StackFrame();
            m_currentFrame.ReturnPC = returnPC;
            stack.StackFrames.Push(m_currentFrame);
            currentClass.StartMethod(this, methName);
        }

        public void JumpToStaticParamMethod(string methName, string param, int returnPC)
        {
            if (param == "I")
            {
                BaseType bs1 = m_currentFrame.OpStack.Pop();
                m_currentFrame = new StackFrame();
                m_currentFrame.ReturnPC = returnPC;
                stack.StackFrames.Push(m_currentFrame);
                m_currentFrame.LocalVariables[0] = ((Int) bs1);
                currentClass.StartMethod(this, methName);
            }
            if (param == "F")
            {
            }
        }

        public void JumpToClassStaticVoidMethod(string className, string methName, int returnPC)
        {
        }

        public bool Excute()
        {
            excutionCounter++;
            return m_Interpreter.Excute();
        }
    }
}