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 /* Soot - a J*va Optimization Framework
  * Copyright (C) 2003 Feng Qian
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

Simulates the native method side effects in class java.lang.Runtime

Author(s):
Feng Qian
<XXX>
package soot.jimple.toolkits.pointer.nativemethods;
import soot.*;
public class JavaLangRuntimeNative extends NativeMethodClass {
    public JavaLangRuntimeNativeNativeHelper helper ) { super(helper); }

  
Implements the abstract method simulateMethod. It distributes the request to the corresponding methods by signatures.
  public void simulateMethod(SootMethod method,
			     ReferenceVariable thisVar,
			     ReferenceVariable returnVar,
			     ReferenceVariable params[]){
    String subSignature = method.getSubSignature();
    if (subSignature.equals("java.lang.Process execInternal(java.lang.String[],java.lang.String[],java.lang.String)")) {
      java_lang_Runtime_execInternal(methodthisVarreturnVarparams);
      return;
    } else {
      defaultMethod(methodthisVarreturnVarparams);
      return;
    }
  }

  
java.lang.Runtime *******************

  
execInternal is called by all exec method. It return a Process object. NOTE: creates a Process object. private native java.lang.Process execInternal(java.lang.String[], java.lang.String[], java.lang.String) throws java.io.IOException;
  public 
					ReferenceVariable returnVar,
					ReferenceVariable params[]){
    .assignObjectTo(returnVar, Environment.v().getProcessObject());
  }

  
Following methods have NO side effects. public native long freeMemory(); public native long totalMemory(); public native void gc(); private static native void runFinalization0(); public native void traceInstructions(boolean); public native void traceMethodCalls(boolean);
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