/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.mmtk.harness.vm;
import org.vmmagic.pragma.Uninterruptible;
@Uninterruptible
public class Strings extends org.mmtk.vm.Strings {
/**
* Log a message.
*
* @param c character array with message starting at index 0
* @param len number of characters in message
*/
public void write(char [] c, int len) {
String x = new String(c, 0, len);
System.err.print(x);
}
/**
* Log a thread identifier and a message.
*
* @param c character array with message starting at index 0
* @param len number of characters in message
*/
public void writeThreadId(char [] c, int len) {
String x = new String(c, 0, len);
System.err.print(Thread.currentThread().getId() + " : " + x);
}
/**
* Copies characters from the string into the character array.
* Thread switching is disabled during this method's execution.
* <p>
* <b>TODO:</b> There are special memory management semantics here that
* someone should document.
*
* @param src the source string
* @param dst the destination array
* @param dstBegin the start offset in the desination array
* @param dstEnd the index after the last character in the
* destination to copy to
* @return the number of characters copied.
*/
public int copyStringToChars(String src, char [] dst, int dstBegin, int dstEnd) {
int count = 0;
for (int i=0; i <src.length(); i++) {
if (dstBegin > dstEnd) break;
dst[dstBegin] = src.charAt(i);
dstBegin++;
count++;
}
return count;
}
}