/*
* 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.jikesrvm.classloader;
import org.jikesrvm.mm.mminterface.MemoryManager;
import org.jikesrvm.VM;
/**
* The manager of specialized methods.
*/
public final class SpecializedMethodManager {
/** The number of specialized methods. Currently the MM is the only consumer. */
private static final int numSpecializedMethods = MemoryManager.numSpecializedMethods();
/** All the specialized methods */
private static final SpecializedMethod[] methods = new SpecializedMethod[numSpecializedMethods];
/** The number of specialized methods */
public static int numSpecializedMethods() { return numSpecializedMethods; }
/** Set up the specialized methods for the given type */
public static void notifyTypeInstantiated(RVMType type) {
for(int i=0; i < numSpecializedMethods; i++) {
if (methods[i] == null) {
initializeSpecializedMethod(i);
}
type.setSpecializedMethod(i, methods[i].specializeMethod(type));
}
}
/** Set up the specialized methods for the given type */
public static void refreshSpecializedMethods(RVMType type) {
for(int i=0; i < numSpecializedMethods; i++) {
if (VM.VerifyAssertions) VM._assert(methods[i] != null, "Specialized method missing!");
type.setSpecializedMethod(i, methods[i].specializeMethod(type));
}
}
/** Ensure that a specific specialized method now exists. */
private static void initializeSpecializedMethod(int id) {
if (VM.VerifyAssertions) VM._assert(id >= 0);
if (VM.VerifyAssertions) VM._assert(id < numSpecializedMethods);
if (VM.VerifyAssertions) VM._assert(methods[id] == null);
methods[id] = MemoryManager.createSpecializedMethod(id);
}
/** Can not create an instance of the manager */
private SpecializedMethodManager() {}
}