M7350v1_en_gpl

base/tools/preload/Android.mk

@@ -0,0 +1,23 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+	Compile.java  \
+	LoadedClass.java \
+	MemoryUsage.java \
+	Operation.java \
+	Policy.java \
+	PrintCsv.java \
+	PrintHtmlDiff.java \
+	PrintPsTree.java \
+	Proc.java \
+	Record.java \
+	Root.java \
+	WritePreloadedClassFile.java
+
+LOCAL_MODULE:= preload
+
+include $(BUILD_HOST_JAVA_LIBRARY)
+
+include $(call all-subdir-makefiles)

base/tools/preload/Compile.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Parses and analyzes a log, pulling our PRELOAD information. If you have
+ * an emulator or device running in the background, this class will use it
+ * to measure and record the memory usage of each class.
+ * 
+ * TODO: Should analyze lines and select substring dynamically (instead of hardcoded 19)
+ */
+public class Compile {
+
+    public static void main(String[] args) throws IOException {
+        if (args.length != 2) {
+            System.err.println("Usage: Compile [log file] [output file]");
+            System.exit(0);
+        }
+
+        Root root = new Root();
+
+        List<Record> records = new ArrayList<Record>();
+
+        BufferedReader in = new BufferedReader(new InputStreamReader(
+                new FileInputStream(args[0])));
+
+        String line;
+        int lineNumber = 0;
+        while ((line = in.readLine()) != null) {
+            lineNumber++;
+            if (line.startsWith("I/PRELOAD")) {
+                try {
+                    String clipped = line.substring(19);
+                    records.add(new Record(clipped, lineNumber));
+                } catch (RuntimeException e) {
+                    throw new RuntimeException(
+                            "Exception while recording line " + lineNumber + ": " + line, e);
+                }
+            }
+        }
+
+        for (Record record : records) {
+            root.indexProcess(record);
+        }
+
+        for (Record record : records) {
+            root.indexClassOperation(record);
+        }
+
+        in.close();
+
+        root.toFile(args[1]);
+    }
+}

base/tools/preload/LoadedClass.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.Serializable;
+import java.util.*;
+
+/**
+ * A loaded class.
+ */
+class LoadedClass implements Serializable, Comparable<LoadedClass> {
+
+    private static final long serialVersionUID = 0;
+
+    /** Class name. */
+    final String name;
+
+    /** Load operations. */
+    final List<Operation> loads = new ArrayList<Operation>();
+
+    /** Static initialization operations. */
+    final List<Operation> initializations = new ArrayList<Operation>();
+
+    /** Memory usage gathered by loading only this class in its own VM. */
+    MemoryUsage memoryUsage = MemoryUsage.NOT_AVAILABLE;
+
+    /**
+     * Whether or not this class was loaded in the system class loader.
+     */
+    final boolean systemClass;
+
+    /** Whether or not this class will be preloaded. */
+    boolean preloaded;
+
+    /** Constructs a new class. */
+    LoadedClass(String name, boolean systemClass) {
+        this.name = name;
+        this.systemClass = systemClass;
+    }
+
+    void measureMemoryUsage() {
+        this.memoryUsage = MemoryUsage.forClass(name);
+    }
+
+    int mlt = -1;
+
+    /** Median time to load this class. */
+    int medianLoadTimeMicros() {
+        if (mlt != -1) {
+            return mlt;
+        }
+
+        return mlt = calculateMedian(loads);
+    }
+
+    int mit = -1;
+
+    /** Median time to initialize this class. */
+    int medianInitTimeMicros() {
+        if (mit != -1) {
+            return mit;
+        }
+
+        return mit = calculateMedian(initializations);
+    }
+
+    int medianTimeMicros() {
+        return medianInitTimeMicros() + medianLoadTimeMicros();
+    }
+
+    /** Calculates the median duration for a list of operations. */
+    private static int calculateMedian(List<Operation> operations) {
+        int size = operations.size();
+        if (size == 0) {
+            return 0;
+        }
+
+        int[] times = new int[size];
+        for (int i = 0; i < size; i++) {
+            times[i] = operations.get(i).exclusiveTimeMicros();
+        }
+
+        Arrays.sort(times);
+        int middle = size / 2;
+        if (size % 2 == 1) {
+            // Odd
+            return times[middle];
+        } else {
+            // Even -- average the two.
+            return (times[middle - 1] + times[middle]) / 2;
+        }
+    }
+
+    /** Returns names of processes that loaded this class. */
+    Set<String> processNames() {
+        Set<String> names = new HashSet<String>();
+        addProcessNames(loads, names);
+        addProcessNames(initializations, names);
+        return names;
+    }
+
+    private void addProcessNames(List<Operation> ops, Set<String> names) {
+        for (Operation operation : ops) {
+            if (operation.process.fromZygote()) {
+                names.add(operation.process.name);
+            }
+        }
+    }
+
+    public int compareTo(LoadedClass o) {
+        return name.compareTo(o.name);
+    }
+
+    @Override
+    public String toString() {
+        return name;
+    }
+}

base/tools/preload/MemoryUsage.java

@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.Serializable;
+import java.io.IOException;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+/**
+ * Memory usage information.
+ */
+class MemoryUsage implements Serializable {
+
+    private static final long serialVersionUID = 0;
+
+    static final MemoryUsage NOT_AVAILABLE = new MemoryUsage();
+    
+    static int errorCount = 0;
+
+    // These values are in 1kB increments (not 4kB like you'd expect).
+    final int nativeSharedPages;
+    final int javaSharedPages;
+    final int otherSharedPages;
+    final int nativePrivatePages;
+    final int javaPrivatePages;
+    final int otherPrivatePages;
+
+    final int allocCount;
+    final int allocSize;
+    final int freedCount;
+    final int freedSize;
+    final long nativeHeapSize;
+
+    public MemoryUsage(String line) {
+        String[] parsed = line.split(",");
+
+        nativeSharedPages = Integer.parseInt(parsed[1]);
+        javaSharedPages = Integer.parseInt(parsed[2]);
+        otherSharedPages = Integer.parseInt(parsed[3]);
+        nativePrivatePages = Integer.parseInt(parsed[4]);
+        javaPrivatePages = Integer.parseInt(parsed[5]);
+        otherPrivatePages = Integer.parseInt(parsed[6]);
+        allocCount = Integer.parseInt(parsed[7]);
+        allocSize = Integer.parseInt(parsed[8]);
+        freedCount = Integer.parseInt(parsed[9]);
+        freedSize = Integer.parseInt(parsed[10]);
+        nativeHeapSize = Long.parseLong(parsed[11]);
+    }
+
+    MemoryUsage() {
+        nativeSharedPages = -1;
+        javaSharedPages = -1;
+        otherSharedPages = -1;
+        nativePrivatePages = -1;
+        javaPrivatePages = -1;
+        otherPrivatePages = -1;
+
+        allocCount = -1;
+        allocSize = -1;
+        freedCount = -1;
+        freedSize = -1;
+        nativeHeapSize = -1;
+    }
+
+    MemoryUsage(int nativeSharedPages,
+            int javaSharedPages,
+            int otherSharedPages,
+            int nativePrivatePages,
+            int javaPrivatePages,
+            int otherPrivatePages,
+            int allocCount,
+            int allocSize,
+            int freedCount,
+            int freedSize,
+            long nativeHeapSize) {
+        this.nativeSharedPages = nativeSharedPages;
+        this.javaSharedPages = javaSharedPages;
+        this.otherSharedPages = otherSharedPages;
+        this.nativePrivatePages = nativePrivatePages;
+        this.javaPrivatePages = javaPrivatePages;
+        this.otherPrivatePages = otherPrivatePages;
+        this.allocCount = allocCount;
+        this.allocSize = allocSize;
+        this.freedCount = freedCount;
+        this.freedSize = freedSize;
+        this.nativeHeapSize = nativeHeapSize;
+    }
+
+    MemoryUsage subtract(MemoryUsage baseline) {
+        return new MemoryUsage(
+                nativeSharedPages - baseline.nativeSharedPages,
+                javaSharedPages - baseline.javaSharedPages,
+                otherSharedPages - baseline.otherSharedPages,
+                nativePrivatePages - baseline.nativePrivatePages,
+                javaPrivatePages - baseline.javaPrivatePages,
+                otherPrivatePages - baseline.otherPrivatePages,
+                allocCount - baseline.allocCount,
+                allocSize - baseline.allocSize,
+                freedCount - baseline.freedCount,
+                freedSize - baseline.freedSize,
+                nativeHeapSize - baseline.nativeHeapSize);
+    }
+
+    int javaHeapSize() {
+        return allocSize - freedSize;
+    }
+
+    int totalHeap() {
+        return javaHeapSize() + (int) nativeHeapSize;
+    }
+
+    int javaPagesInK() {
+        return javaSharedPages + javaPrivatePages;
+    }
+
+    int nativePagesInK() {
+        return nativeSharedPages + nativePrivatePages;
+    }
+    int otherPagesInK() {
+        return otherSharedPages + otherPrivatePages;
+    }
+
+    int totalPages() {
+        return javaSharedPages + javaPrivatePages + nativeSharedPages +
+                nativePrivatePages + otherSharedPages + otherPrivatePages;
+    }
+
+    /**
+     * Was this information available?
+     */
+    boolean isAvailable() {
+        return nativeSharedPages != -1;
+    }
+
+    /**
+     * Measures baseline memory usage.
+     */
+    static MemoryUsage baseline() {
+        return forClass(null);
+    }
+
+    private static final String CLASS_PATH = "-Xbootclasspath"
+            + ":/system/framework/core.jar"
+            + ":/system/framework/ext.jar"
+            + ":/system/framework/framework.jar"
+            + ":/system/framework/framework-tests.jar"
+            + ":/system/framework/services.jar"
+            + ":/system/framework/loadclass.jar";
+
+    private static final String[] GET_DIRTY_PAGES = {
+        "adb", "shell", "dalvikvm", CLASS_PATH, "LoadClass" };
+
+    /**
+     * Measures memory usage for the given class.
+     */
+    static MemoryUsage forClass(String className) {
+        MeasureWithTimeout measurer = new MeasureWithTimeout(className);
+
+        new Thread(measurer).start();
+
+        synchronized (measurer) {
+            if (measurer.memoryUsage == null) {
+                // Wait up to 10s.
+                try {
+                    measurer.wait(30000);
+                } catch (InterruptedException e) {
+                    System.err.println("Interrupted waiting for measurement.");
+                    e.printStackTrace();
+                    return NOT_AVAILABLE;
+                }
+
+                // If it's still null.
+                if (measurer.memoryUsage == null) {
+                    System.err.println("Timed out while measuring "
+                            + className + ".");
+                    return NOT_AVAILABLE;
+                }
+            }
+
+            System.err.println("Got memory usage for " + className + ".");
+            return measurer.memoryUsage;
+        }
+    }
+
+    static class MeasureWithTimeout implements Runnable {
+
+        final String className;
+        MemoryUsage memoryUsage = null;
+
+        MeasureWithTimeout(String className) {
+            this.className = className;
+        }
+
+        public void run() {
+            MemoryUsage measured = measure();
+
+            synchronized (this) {
+                memoryUsage = measured;
+                notifyAll();
+            }
+        }
+
+        private MemoryUsage measure() {
+            String[] commands = GET_DIRTY_PAGES;
+            if (className != null) {
+                List<String> commandList = new ArrayList<String>(
+                        GET_DIRTY_PAGES.length + 1);
+                commandList.addAll(Arrays.asList(commands));
+                commandList.add(className);
+                commands = commandList.toArray(new String[commandList.size()]);
+            }
+
+            try {
+                final Process process = Runtime.getRuntime().exec(commands);
+
+                final InputStream err = process.getErrorStream();
+
+                // Send error output to stderr.
+                Thread errThread = new Thread() {
+                    @Override
+                    public void run() {
+                        copy(err, System.err);
+                    }
+                };
+                errThread.setDaemon(true);
+                errThread.start();
+
+                BufferedReader in = new BufferedReader(
+                        new InputStreamReader(process.getInputStream()));
+                String line = in.readLine();
+                if (line == null || !line.startsWith("DECAFBAD,")) {
+                    System.err.println("Got bad response for " + className
+                            + ": " + line + "; command was " + Arrays.toString(commands));
+                    errorCount += 1;
+                    return NOT_AVAILABLE;
+                }
+
+                in.close();
+                err.close();
+                process.destroy();                
+
+                return new MemoryUsage(line);
+            } catch (IOException e) {
+                System.err.println("Error getting stats for "
+                        + className + ".");                
+                e.printStackTrace();
+                return NOT_AVAILABLE;
+            }
+        }
+
+    }
+
+    /**
+     * Copies from one stream to another.
+     */
+    private static void copy(InputStream in, OutputStream out) {
+        byte[] buffer = new byte[1024];
+        int read;
+        try {
+            while ((read = in.read(buffer)) > -1) {
+                out.write(buffer, 0, read);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /** Measures memory usage information and stores it in the model. */
+    public static void main(String[] args) throws IOException,
+            ClassNotFoundException {
+        Root root = Root.fromFile(args[0]);
+        root.baseline = baseline();
+        for (LoadedClass loadedClass : root.loadedClasses.values()) {
+            if (loadedClass.systemClass) {
+                loadedClass.measureMemoryUsage();
+            }
+        }
+        root.toFile(args[0]);
+    }
+}

base/tools/preload/Operation.java

@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.util.List;
+import java.util.ArrayList;
+import java.io.Serializable;
+
+/**
+ * An operation with a duration. Could represent a class load or initialization.
+ */
+class Operation implements Serializable {
+
+    private static final long serialVersionUID = 0;
+    
+    /**
+     * Type of operation.
+     */
+    enum Type {
+        LOAD, INIT
+    }
+
+    /** Process this operation occurred in. */
+    final Proc process;
+
+    /** Start time for this operation. */
+    final long startTimeNanos;
+
+    /** Index of this operation relative to its process. */
+    final int index;
+
+    /** Type of operation. */
+    final Type type;
+
+    /** End time for this operation. */
+    long endTimeNanos = -1;
+
+    /** The class that this operation loaded or initialized. */
+    final LoadedClass loadedClass;
+
+    /** Other operations that occurred during this one. */
+    final List<Operation> subops = new ArrayList<Operation>();
+
+    /** Constructs a new operation. */
+    Operation(Proc process, LoadedClass loadedClass, long startTimeNanos,
+            int index, Type type) {
+        this.process = process;
+        this.loadedClass = loadedClass;
+        this.startTimeNanos = startTimeNanos;
+        this.index = index;
+        this.type = type;
+    }
+
+    /**
+     * Returns how long this class initialization and all the nested class
+     * initializations took.
+     */
+    private long inclusiveTimeNanos() {
+        if (endTimeNanos == -1) {
+            throw new IllegalStateException("End time hasn't been set yet: "
+                    + loadedClass.name);
+        }
+
+        return endTimeNanos - startTimeNanos;
+    }
+
+    /**
+     * Returns how long this class initialization took.
+     */
+    int exclusiveTimeMicros() {
+        long exclusive = inclusiveTimeNanos();
+
+        for (Operation child : subops) {
+            exclusive -= child.inclusiveTimeNanos();
+        }
+
+        if (exclusive < 0) {
+            throw new AssertionError(loadedClass.name);
+        }
+
+        return nanosToMicros(exclusive);
+    }
+
+    /** Gets the median time that this operation took across all processes. */
+    int medianExclusiveTimeMicros() {
+        switch (type) {
+            case LOAD: return loadedClass.medianLoadTimeMicros();
+            case INIT: return loadedClass.medianInitTimeMicros();
+            default: throw new AssertionError();
+        }
+    }
+
+    /**
+     * Converts nanoseconds to microseconds.
+     *
+     * @throws RuntimeException if overflow occurs
+     */
+    private static int nanosToMicros(long nanos) {
+        long micros = nanos / 1000;
+        int microsInt = (int) micros;
+        if (microsInt != micros) {
+            throw new RuntimeException("Integer overflow: " + nanos);
+        }
+        return microsInt;
+    }
+    
+    /**
+     * Primarily for debugger support
+     */
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(type.toString());
+        sb.append(' ');
+        sb.append(loadedClass.toString());
+        if (subops.size() > 0) {
+            sb.append(" (");
+            sb.append(subops.size());
+            sb.append(" sub ops)");
+        }
+        return sb.toString();
+    }
+
+}

base/tools/preload/Policy.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Policy that governs which classes are preloaded.
+ */
+public class Policy {
+
+    /**
+     * No constructor - use static methods only
+     */
+    private Policy() {}
+
+    /**
+     * This location (in the build system) of the preloaded-classes file.
+     */
+    static final String PRELOADED_CLASS_FILE
+            = "frameworks/base/preloaded-classes";
+
+    /**
+     * Long running services. These are restricted in their contribution to the 
+     * preloader because their launch time is less critical.
+     */
+    // TODO: Generate this automatically from package manager.
+    private static final Set<String> SERVICES = new HashSet<String>(Arrays.asList(
+        "system_server",
+        "com.google.process.content",
+        "android.process.media",
+        "com.android.bluetooth",
+        "com.android.calendar",
+        "com.android.inputmethod.latin",
+        "com.android.phone",
+        "com.google.android.apps.maps.FriendService", // pre froyo
+        "com.google.android.apps.maps:FriendService", // froyo
+        "com.google.android.apps.maps.LocationFriendService",
+        "com.google.android.deskclock",
+        "com.google.process.gapps",
+        "android.tts"
+    ));
+
+    /**
+     * Classes which we shouldn't load from the Zygote.
+     */
+    private static final Set<String> EXCLUDED_CLASSES
+            = new HashSet<String>(Arrays.asList(
+        // Binders
+        "android.app.AlarmManager",
+        "android.app.SearchManager",
+        "android.os.FileObserver",
+        "com.android.server.PackageManagerService$AppDirObserver",
+
+        // Threads
+        "android.os.AsyncTask",
+        "android.pim.ContactsAsyncHelper",
+        "java.lang.ProcessManager"
+    ));
+
+    /**
+     * Returns true if the given process name is a "long running" process or
+     * service.
+     */
+    public static boolean isService(String processName) {
+        return SERVICES.contains(processName);
+    }
+
+    /**Reports if the given class should be preloaded. */
+    public static boolean isPreloadable(LoadedClass clazz) {
+        return clazz.systemClass && !EXCLUDED_CLASSES.contains(clazz.name);
+    }
+}

base/tools/preload/PrintCsv.java

@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.IOException;
+import java.io.FileInputStream;
+import java.io.ObjectInputStream;
+import java.io.BufferedInputStream;
+import java.io.Writer;
+import java.io.PrintStream;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.TreeSet;
+import java.util.Iterator;
+
+/**
+ * Prints raw information in CSV format.
+ */
+public class PrintCsv {
+
+    public static void main(String[] args)
+            throws IOException, ClassNotFoundException {
+        if (args.length != 1) {
+            System.err.println("Usage: PrintCsv [compiled log file]");
+            System.exit(0);
+        }
+
+        Root root = Root.fromFile(args[0]);
+
+        printHeaders(System.out);
+
+        MemoryUsage baseline = MemoryUsage.baseline();
+
+        for (LoadedClass loadedClass : root.loadedClasses.values()) {
+            if (!loadedClass.systemClass) {
+                continue;
+            }
+
+            printRow(System.out, baseline, loadedClass);
+        }
+    }
+
+    static void printHeaders(PrintStream out) {
+        out.println("Name"
+                + ",Preloaded"
+                + ",Median Load Time (us)"
+                + ",Median Init Time (us)"
+                + ",Process Names"
+                + ",Load Count"
+                + ",Init Count"
+                + ",Managed Heap (B)"
+                + ",Native Heap (B)"
+                + ",Managed Pages (kB)"
+                + ",Native Pages (kB)"
+                + ",Other Pages (kB)");
+    }
+
+    static void printRow(PrintStream out, MemoryUsage baseline,
+            LoadedClass loadedClass) {
+        out.print(loadedClass.name);
+        out.print(',');
+        out.print(loadedClass.preloaded);
+        out.print(',');
+        out.print(loadedClass.medianLoadTimeMicros());
+        out.print(',');
+        out.print(loadedClass.medianInitTimeMicros());
+        out.print(',');
+        out.print('"');
+
+        Set<String> procNames = new TreeSet<String>();
+        for (Operation op : loadedClass.loads)
+            procNames.add(op.process.name);
+        for (Operation op : loadedClass.initializations)
+            procNames.add(op.process.name);
+
+        if (procNames.size() <= 3) {
+            for (String name : procNames) {
+                out.print(name + "\n");
+            }
+        } else {
+            Iterator<String> i = procNames.iterator();
+            out.print(i.next() + "\n");
+            out.print(i.next() + "\n");
+            out.print("...and " + (procNames.size() - 2)
+                    + " others.");
+        }
+
+        out.print('"');
+        out.print(',');
+        out.print(loadedClass.loads.size());
+        out.print(',');
+        out.print(loadedClass.initializations.size());
+
+        if (loadedClass.memoryUsage.isAvailable()) {
+            MemoryUsage subtracted
+                    = loadedClass.memoryUsage.subtract(baseline);
+
+            out.print(',');
+            out.print(subtracted.javaHeapSize());
+            out.print(',');
+            out.print(subtracted.nativeHeapSize);
+            out.print(',');
+            out.print(subtracted.javaPagesInK());
+            out.print(',');
+            out.print(subtracted.nativePagesInK());
+            out.print(',');
+            out.print(subtracted.otherPagesInK());
+
+        } else {
+            out.print(",n/a,n/a,n/a,n/a,n/a");
+        }
+
+        out.println();
+    }
+}

base/tools/preload/PrintHtmlDiff.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.IOException;
+import java.io.FileReader;
+import java.io.BufferedReader;
+import java.io.PrintStream;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.HashSet;
+import java.util.Iterator;
+
+/**
+ * Prints HTML containing removed and added files.
+ */
+public class PrintHtmlDiff {
+
+    private static final String OLD_PRELOADED_CLASSES
+            = "old-preloaded-classes";
+
+    public static void main(String[] args) throws IOException,
+            ClassNotFoundException {
+        Root root = Root.fromFile(args[0]);
+
+        BufferedReader oldClasses = new BufferedReader(
+            new FileReader(OLD_PRELOADED_CLASSES));
+
+        // Classes loaded implicitly by the zygote.
+        Set<LoadedClass> zygote = new HashSet<LoadedClass>();
+        for (Proc proc : root.processes.values()) {
+            if (proc.name.equals("zygote")) {
+                for (Operation op : proc.operations) {
+                    zygote.add(op.loadedClass);
+                }
+                break;
+            }
+        }
+
+        Set<LoadedClass> removed = new TreeSet<LoadedClass>();
+        Set<LoadedClass> added = new TreeSet<LoadedClass>();
+
+        for (LoadedClass loadedClass : root.loadedClasses.values()) {
+            if (loadedClass.preloaded && !zygote.contains(loadedClass)) {
+                added.add(loadedClass);
+            }
+        }
+
+        String line;
+        while ((line = oldClasses.readLine()) != null) {
+            line = line.trim();
+            LoadedClass clazz = root.loadedClasses.get(line);
+            if (clazz != null) {
+                added.remove(clazz);
+                if (!clazz.preloaded) removed.add(clazz);
+            }
+        }
+
+        PrintStream out = System.out;
+
+        out.println("<html><body>");
+        out.println("<style>");
+        out.println("a, th, td, h2 { font-family: arial }");
+        out.println("th, td { font-size: small }");
+        out.println("</style>");
+        out.println("<script src=\"sorttable.js\"></script>");
+        out.println("<p><a href=\"#removed\">Removed</a>");
+        out.println("<a name=\"added\"/><h2>Added</h2>");
+        printTable(out, root.baseline, added);
+        out.println("<a name=\"removed\"/><h2>Removed</h2>");
+        printTable(out, root.baseline, removed);
+        out.println("</body></html>");
+    }
+
+    static void printTable(PrintStream out, MemoryUsage baseline,
+            Iterable<LoadedClass> classes) {
+        out.println("<table border=\"1\" cellpadding=\"5\""
+                + " class=\"sortable\">");
+
+        out.println("<thead><tr>");
+        out.println("<th>Name</th>");
+        out.println("<th>Load Time (us)</th>");
+        out.println("<th>Loaded By</th>");
+        out.println("<th>Heap (B)</th>");
+        out.println("<th>Pages</th>");
+        out.println("</tr></thead>");
+
+        for (LoadedClass clazz : classes) {
+            out.println("<tr>");
+            out.println("<td>" + clazz.name + "</td>");
+            out.println("<td>" + clazz.medianTimeMicros() + "</td>");
+
+            out.println("<td>");
+            Set<String> procNames = new TreeSet<String>();
+            for (Operation op : clazz.loads) procNames.add(op.process.name);
+            for (Operation op : clazz.initializations) {
+                procNames.add(op.process.name);
+            }
+            if (procNames.size() <= 3) {
+                for (String name : procNames) {
+                    out.print(name + "<br/>");
+                }
+            } else {
+                Iterator<String> i = procNames.iterator();
+                out.print(i.next() + "<br/>");
+                out.print(i.next() + "<br/>");
+                out.print("...and " + (procNames.size() - 2)
+                        + " others.");
+            }
+            out.println("</td>");
+
+            if (clazz.memoryUsage.isAvailable()) {
+                MemoryUsage subtracted
+                        = clazz.memoryUsage.subtract(baseline);
+
+                out.println("<td>" + (subtracted.javaHeapSize()
+                        + subtracted.nativeHeapSize) + "</td>");
+                out.println("<td>" + subtracted.totalPages() + "</td>");
+            } else {
+                for (int i = 0; i < 2; i++) {
+                    out.println("<td>n/a</td>");                    
+                }
+            }
+
+            out.println("</tr>");
+        }
+
+        out.println("</table>");
+    }
+}

base/tools/preload/PrintPsTree.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.IOException;
+import java.io.FileInputStream;
+import java.io.ObjectInputStream;
+import java.io.BufferedInputStream;
+
+/**
+ * Prints raw information in CSV format.
+ */
+public class PrintPsTree {
+
+    public static void main(String[] args)
+            throws IOException, ClassNotFoundException {
+        if (args.length != 1) {
+            System.err.println("Usage: PrintCsv [compiled log file]");
+            System.exit(0);
+        }
+
+        FileInputStream fin = new FileInputStream(args[0]);
+        ObjectInputStream oin = new ObjectInputStream(
+                new BufferedInputStream(fin));
+
+        Root root = (Root) oin.readObject();
+
+        for (Proc proc : root.processes.values()) {
+            if (proc.parent == null) {
+                proc.print();                                
+            }
+        }
+    }
+}

base/tools/preload/Proc.java

@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.HashMap;
+import java.io.Serializable;
+
+/**
+ * A Dalvik process.
+ */
+class Proc implements Serializable {
+
+    private static final long serialVersionUID = 0;
+
+    /** Parent process. */
+    final Proc parent;
+
+    /** Process ID. */
+    final int id;
+
+    /**
+     * Name of this process. We may not have the correct name at first, i.e.
+     * some classes could have been loaded before the process name was set.
+     */
+    String name;
+
+    /** Child processes. */
+    final List<Proc> children = new ArrayList<Proc>();
+
+    /** Maps thread ID to operation stack. */
+    transient final Map<Integer, LinkedList<Operation>> stacks
+            = new HashMap<Integer, LinkedList<Operation>>();
+
+    /** Number of operations. */
+    int operationCount;
+
+    /** Sequential list of operations that happened in this process. */
+    final List<Operation> operations = new ArrayList<Operation>();
+
+    /** List of past process names. */
+    final List<String> nameHistory = new ArrayList<String>();
+
+    /** Constructs a new process. */
+    Proc(Proc parent, int id) {
+        this.parent = parent;
+        this.id = id;
+    }
+
+    /** Sets name of this process. */
+    void setName(String name) {
+        if (!name.equals(this.name)) {
+            if (this.name != null) {
+                nameHistory.add(this.name);
+            }
+            this.name = name;
+        }
+    }
+
+    /**
+     * Returns true if this process comes from the zygote.
+     */
+    public boolean fromZygote() {
+        return parent != null && parent.name.equals("zygote")
+                && !name.equals("com.android.development");
+    }
+
+    /**
+     * Starts an operation.
+     *
+     * @param threadId thread the operation started in
+     * @param loadedClass class operation happened to
+     * @param time the operation started
+     */
+    void startOperation(int threadId, LoadedClass loadedClass, long time,
+            Operation.Type type) {
+        Operation o = new Operation(
+                this, loadedClass, time, operationCount++, type);
+        operations.add(o);
+
+        LinkedList<Operation> stack = stacks.get(threadId);
+        if (stack == null) {
+            stack = new LinkedList<Operation>();
+            stacks.put(threadId, stack);
+        }
+
+        if (!stack.isEmpty()) {
+            stack.getLast().subops.add(o);
+        }
+
+        stack.add(o);
+    }
+
+    /**
+     * Ends an operation.
+     *
+     * @param threadId thread the operation ended in
+     * @param loadedClass class operation happened to
+     * @param time the operation ended
+     */
+    Operation endOperation(int threadId, String className,
+            LoadedClass loadedClass, long time) {
+        LinkedList<Operation> stack = stacks.get(threadId);
+
+        if (stack == null || stack.isEmpty()) {
+            didNotStart(className);
+            return null;
+        }
+
+        Operation o = stack.getLast();
+        if (loadedClass != o.loadedClass) {
+            didNotStart(className);
+            return null;
+        }
+
+        stack.removeLast();
+
+        o.endTimeNanos = time;
+        return o;
+    }
+
+    /**
+     * Prints an error indicating that we saw the end of an operation but not
+     * the start. A bug in the logging framework which results in dropped logs
+     * causes this.
+     */
+    private static void didNotStart(String name) {
+        System.err.println("Warning: An operation ended on " + name
+            + " but it never started!");
+    }
+
+    /**
+     * Prints this process tree to stdout.
+     */
+    void print() {
+        print("");
+    }
+
+    /**
+     * Prints a child proc to standard out.
+     */
+    private void print(String prefix) {
+        System.out.println(prefix + "id=" + id + ", name=" + name);
+        for (Proc child : children) {
+            child.print(prefix + "    ");
+        }
+    }
+
+    @Override
+    public String toString() {
+        return this.name;
+    }
+}

base/tools/preload/Record.java

@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * One line from the loaded-classes file.
+ */
+class Record {
+
+    /**
+     * The delimiter character we use, {@code :}, conflicts with some other
+     * names. In that case, manually replace the delimiter with something else.
+     */
+    private static final String[] REPLACE_CLASSES = {
+            "com.google.android.apps.maps:FriendService",
+            "com.google.android.apps.maps\\u003AFriendService",
+            "com.google.android.apps.maps:driveabout",
+            "com.google.android.apps.maps\\u003Adriveabout",
+            "com.google.android.apps.maps:LocationFriendService",
+            "com.google.android.apps.maps\\u003ALocationFriendService",
+    };
+
+    enum Type {
+        /** Start of initialization. */
+        START_LOAD,
+
+        /** End of initialization. */
+        END_LOAD,
+
+        /** Start of initialization. */
+        START_INIT,
+
+        /** End of initialization. */
+        END_INIT
+    }
+
+    /** Parent process ID. */
+    final int ppid;
+
+    /** Process ID. */
+    final int pid;
+
+    /** Thread ID. */
+    final int tid;
+
+    /** Process name. */
+    final String processName;
+
+    /** Class loader pointer. */
+    final int classLoader;
+
+    /** Type of record. */
+    final Type type;
+
+    /** Name of loaded class. */
+    final String className;
+
+    /** Record time (ns). */
+    final long time;
+    
+    /** Source file line# */
+    int sourceLineNumber;
+
+    /**
+     * Parses a line from the loaded-classes file.
+     */
+    Record(String line, int lineNum) {
+        char typeChar = line.charAt(0);
+        switch (typeChar) {
+            case '>': type = Type.START_LOAD; break;
+            case '<': type = Type.END_LOAD; break;
+            case '+': type = Type.START_INIT; break;
+            case '-': type = Type.END_INIT; break;
+            default: throw new AssertionError("Bad line: " + line);
+        }
+
+        sourceLineNumber = lineNum;
+
+        for (int i = 0; i < REPLACE_CLASSES.length; i+= 2) {
+            line = line.replace(REPLACE_CLASSES[i], REPLACE_CLASSES[i+1]);
+        }
+        
+        line = line.substring(1);
+        String[] parts = line.split(":");
+
+        ppid = Integer.parseInt(parts[0]);
+        pid = Integer.parseInt(parts[1]);
+        tid = Integer.parseInt(parts[2]);
+
+        processName = decode(parts[3]).intern();
+
+        classLoader = Integer.parseInt(parts[4]);
+        className = vmTypeToLanguage(decode(parts[5])).intern();
+
+        time = Long.parseLong(parts[6]);
+    }
+    
+    /**
+     * Decode any escaping that may have been written to the log line.
+     * 
+     * Supports unicode-style escaping:  \\uXXXX = character in hex
+     * 
+     * @param rawField the field as it was written into the log
+     * @result the same field with any escaped characters replaced
+     */
+    String decode(String rawField) {
+        String result = rawField;
+        int offset = result.indexOf("\\u");
+        while (offset >= 0) {
+            String before = result.substring(0, offset);
+            String escaped = result.substring(offset+2, offset+6);
+            String after = result.substring(offset+6);
+            
+            result = String.format("%s%c%s", before, Integer.parseInt(escaped, 16), after);
+
+            // find another but don't recurse  
+            offset = result.indexOf("\\u", offset + 1);          
+        }
+        return result;
+    }
+
+    /**
+     * Converts a VM-style name to a language-style name.
+     */
+    String vmTypeToLanguage(String typeName) {
+        // if the typename is (null), just return it as-is.  This is probably in dexopt and 
+        // will be discarded anyway.  NOTE: This corresponds to the case in dalvik/vm/oo/Class.c
+        // where dvmLinkClass() returns false and we clean up and exit.
+        if ("(null)".equals(typeName)) {
+            return typeName;
+        }
+        
+        if (!typeName.startsWith("L") || !typeName.endsWith(";") ) {
+            throw new AssertionError("Bad name: " + typeName + " in line " + sourceLineNumber);
+        }
+
+        typeName = typeName.substring(1, typeName.length() - 1);
+        return typeName.replace("/", ".");
+    }
+}

base/tools/preload/Root.java

@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.Serializable;
+import java.io.IOException;
+import java.io.Writer;
+import java.io.BufferedWriter;
+import java.io.OutputStreamWriter;
+import java.io.FileOutputStream;
+import java.io.FileInputStream;
+import java.io.ObjectInputStream;
+import java.io.BufferedInputStream;
+import java.io.ObjectOutputStream;
+import java.io.BufferedOutputStream;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.Arrays;
+import java.nio.charset.Charset;
+
+/**
+ * Root of our data model.
+ */
+public class Root implements Serializable {
+
+    private static final long serialVersionUID = 0;
+
+    /** pid -> Proc */
+    final Map<Integer, Proc> processes = new HashMap<Integer, Proc>();
+
+    /** Class name -> LoadedClass */
+    final Map<String, LoadedClass> loadedClasses
+            = new HashMap<String, LoadedClass>();
+
+    MemoryUsage baseline = MemoryUsage.baseline();
+
+    /**
+     * Records class loads and initializations.
+     */
+    void indexClassOperation(Record record) {
+        Proc process = processes.get(record.pid);
+
+        // Ignore dexopt output. It loads applications classes through the
+        // system class loader and messes us up.
+        if (record.processName.equals("dexopt")) {
+            return;
+        }
+
+        String name = record.className;
+        LoadedClass loadedClass = loadedClasses.get(name);
+        Operation o = null;
+
+        switch (record.type) {
+            case START_LOAD:
+            case START_INIT:
+                if (loadedClass == null) {
+                    loadedClass = new LoadedClass(
+                            name, record.classLoader == 0);
+                    if (loadedClass.systemClass) {
+                        // Only measure memory for classes in the boot
+                        // classpath.
+                        loadedClass.measureMemoryUsage();
+                    }
+                    loadedClasses.put(name, loadedClass);
+                }
+                break;
+
+            case END_LOAD:
+            case END_INIT:
+                o = process.endOperation(record.tid, record.className,
+                        loadedClass, record.time);
+                if (o == null) {
+                    return;
+                }
+        }
+
+        switch (record.type) {
+            case START_LOAD:
+                process.startOperation(record.tid, loadedClass, record.time,
+                        Operation.Type.LOAD);
+                break;
+
+            case START_INIT:
+                process.startOperation(record.tid, loadedClass, record.time,
+                        Operation.Type.INIT);
+                break;
+
+            case END_LOAD:
+                loadedClass.loads.add(o);
+                break;
+
+            case END_INIT:
+                loadedClass.initializations.add(o);
+                break;
+        }
+    }
+
+    /**
+     * Indexes information about the process from the given record.
+     */
+    void indexProcess(Record record) {
+        Proc proc = processes.get(record.pid);
+
+        if (proc == null) {
+            // Create a new process object.
+            Proc parent = processes.get(record.ppid);
+            proc = new Proc(parent, record.pid);
+            processes.put(proc.id, proc);
+            if (parent != null) {
+                parent.children.add(proc);
+            }
+        }
+
+        proc.setName(record.processName);
+    }
+
+    /**
+     * Writes this graph to a file.
+     */
+    void toFile(String fileName) throws IOException {
+        FileOutputStream out = new FileOutputStream(fileName);
+        ObjectOutputStream oout = new ObjectOutputStream(
+                new BufferedOutputStream(out));
+
+        System.err.println("Writing object model...");
+
+        oout.writeObject(this);
+
+        oout.close();
+
+        System.err.println("Done!");
+    }
+
+    /**
+     * Reads Root from a file.
+     */
+    static Root fromFile(String fileName)
+            throws IOException, ClassNotFoundException {
+        FileInputStream fin = new FileInputStream(fileName);
+        ObjectInputStream oin = new ObjectInputStream(
+                new BufferedInputStream(fin));
+
+        Root root = (Root) oin.readObject();
+
+        oin.close();
+
+        return root;
+    }
+}

base/tools/preload/WritePreloadedClassFile.java

@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.BufferedWriter;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.nio.charset.Charset;
+import java.util.Set;
+import java.util.TreeSet;
+
+/**
+ * Writes /frameworks/base/preloaded-classes. Also updates
+ * {@link LoadedClass#preloaded} fields and writes over compiled log file.
+ */
+public class WritePreloadedClassFile {
+
+    /**
+     * Preload any class that take longer to load than MIN_LOAD_TIME_MICROS us.
+     */
+    static final int MIN_LOAD_TIME_MICROS = 1250;
+
+    /**
+     * Preload any class that was loaded by at least MIN_PROCESSES processes.
+     */
+    static final int MIN_PROCESSES = 10;
+
+    public static void main(String[] args) throws IOException,
+            ClassNotFoundException {
+        if (args.length != 1) {
+            System.err.println("Usage: WritePreloadedClassFile [compiled log]");
+            System.exit(-1);
+        }
+        String rootFile = args[0];
+        Root root = Root.fromFile(rootFile);
+
+        // No classes are preloaded to start.
+        for (LoadedClass loadedClass : root.loadedClasses.values()) {
+            loadedClass.preloaded = false;
+        }
+
+        // Open preloaded-classes file for output.
+        Writer out = new BufferedWriter(new OutputStreamWriter(
+                new FileOutputStream(Policy.PRELOADED_CLASS_FILE),
+                Charset.forName("US-ASCII")));
+
+        out.write("# Classes which are preloaded by"
+                + " com.android.internal.os.ZygoteInit.\n");
+        out.write("# Automatically generated by frameworks/base/tools/preload/"
+            + WritePreloadedClassFile.class.getSimpleName() + ".java.\n");
+        out.write("# MIN_LOAD_TIME_MICROS=" + MIN_LOAD_TIME_MICROS + "\n");
+        out.write("# MIN_PROCESSES=" + MIN_PROCESSES + "\n");
+
+        /*
+         * The set of classes to preload. We preload a class if:
+         *
+         *  a) it's loaded in the bootclasspath (i.e., is a system class)
+         *  b) it takes > MIN_LOAD_TIME_MICROS us to load, and
+         *  c) it's loaded by more than one process, or it's loaded by an
+         *     application (i.e., not a long running service)
+         */
+        Set<LoadedClass> toPreload = new TreeSet<LoadedClass>();
+
+        // Preload classes that were loaded by at least 2 processes. Hopefully,
+        // the memory associated with these classes will be shared.
+        for (LoadedClass loadedClass : root.loadedClasses.values()) {
+            Set<String> names = loadedClass.processNames();
+            if (!Policy.isPreloadable(loadedClass)) {
+                continue;
+            }
+
+            if (names.size() >= MIN_PROCESSES ||
+                    (loadedClass.medianTimeMicros() > MIN_LOAD_TIME_MICROS && names.size() > 1)) {
+                toPreload.add(loadedClass);
+            }
+        }
+
+        int initialSize = toPreload.size();
+        System.out.println(initialSize
+                + " classses were loaded by more than one app.");
+
+        // Preload eligable classes from applications (not long-running
+        // services).
+        for (Proc proc : root.processes.values()) {
+            if (proc.fromZygote() && !Policy.isService(proc.name)) {
+                for (Operation operation : proc.operations) {
+                    LoadedClass loadedClass = operation.loadedClass;
+                    if (shouldPreload(loadedClass)) {
+                        toPreload.add(loadedClass);
+                    }
+                }
+            }
+        }
+
+        System.out.println("Added " + (toPreload.size() - initialSize)
+                + " more to speed up applications.");
+
+        System.out.println(toPreload.size()
+                + " total classes will be preloaded.");
+
+        // Make classes that were implicitly loaded by the zygote explicit.
+        // This adds minimal overhead but avoid confusion about classes not
+        // appearing in the list.
+        addAllClassesFrom("zygote", root, toPreload);
+
+        for (LoadedClass loadedClass : toPreload) {
+            out.write(loadedClass.name + "\n");
+        }
+
+        out.close();
+
+        // Update data to reflect LoadedClass.preloaded changes.
+        for (LoadedClass loadedClass : toPreload) {
+            loadedClass.preloaded = true;
+        }
+        root.toFile(rootFile);
+    }
+
+    private static void addAllClassesFrom(String processName, Root root,
+            Set<LoadedClass> toPreload) {
+        for (Proc proc : root.processes.values()) {
+            if (proc.name.equals(processName)) {
+                for (Operation operation : proc.operations) {
+                    boolean preloadable
+                            = Policy.isPreloadable(operation.loadedClass);
+                    if (preloadable) {
+                        toPreload.add(operation.loadedClass);
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns true if the class should be preloaded.
+     */
+    private static boolean shouldPreload(LoadedClass clazz) {
+        return Policy.isPreloadable(clazz)
+                && clazz.medianTimeMicros() > MIN_LOAD_TIME_MICROS;
+    }
+}

base/tools/preload/loadclass/Android.mk

@@ -0,0 +1,9 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_MODULE := loadclass
+
+include $(BUILD_JAVA_LIBRARY)

base/tools/preload/loadclass/LoadClass.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import android.util.Log;
+import android.os.Debug;
+
+/**
+ * Loads a class, runs the garbage collector, and prints showmap output.
+ *
+ * <p>Usage: dalvikvm LoadClass [class name]
+ */
+class LoadClass {
+
+    public static void main(String[] args) {
+        System.loadLibrary("android_runtime");
+
+        if (registerNatives() < 0) {
+            throw new RuntimeException("Error registering natives.");    
+        }
+
+        Debug.startAllocCounting();
+
+        if (args.length > 0) {
+            try {
+                long start = System.currentTimeMillis();
+                Class.forName(args[0]);
+                long elapsed = System.currentTimeMillis() - start;
+                Log.i("LoadClass", "Loaded " + args[0] + " in " + elapsed
+                        + "ms.");
+            } catch (ClassNotFoundException e) {
+                Log.w("LoadClass", e);
+                return;
+            }
+        }
+
+        System.gc();
+
+        int allocCount = Debug.getGlobalAllocCount();
+        int allocSize = Debug.getGlobalAllocSize();
+        int freedCount = Debug.getGlobalFreedCount();
+        int freedSize = Debug.getGlobalFreedSize();
+        long nativeHeapSize = Debug.getNativeHeapSize();
+
+        Debug.stopAllocCounting();
+
+        StringBuilder response = new StringBuilder("DECAFBAD");
+
+        int[] pages = new int[6];
+        Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
+        Debug.getMemoryInfo(memoryInfo);
+        response.append(',').append(memoryInfo.nativeSharedDirty);
+        response.append(',').append(memoryInfo.dalvikSharedDirty);
+        response.append(',').append(memoryInfo.otherSharedDirty);
+        response.append(',').append(memoryInfo.nativePrivateDirty);
+        response.append(',').append(memoryInfo.dalvikPrivateDirty);
+        response.append(',').append(memoryInfo.otherPrivateDirty);
+
+        response.append(',').append(allocCount);
+        response.append(',').append(allocSize);
+        response.append(',').append(freedCount);
+        response.append(',').append(freedSize);
+        response.append(',').append(nativeHeapSize);
+        
+        System.out.println(response.toString());
+    }
+
+    /**
+     * Registers native functions. See AndroidRuntime.cpp.
+     */
+    static native int registerNatives();
+}

base/tools/preload/preload.iml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module relativePaths="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="false">
+    <output url="file:///tmp/preload" />
+    <output-test url="file:///tmp/preload" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+

base/tools/preload/preload.ipr

@@ -0,0 +1,495 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project relativePaths="false" version="4">
+  <component name="AntConfiguration">
+    <defaultAnt bundledAnt="true" />
+  </component>
+  <component name="BuildJarProjectSettings">
+    <option name="BUILD_JARS_ON_MAKE" value="false" />
+  </component>
+  <component name="ChangeBrowserSettings">
+    <option name="MAIN_SPLITTER_PROPORTION" value="0.3" />
+    <option name="MESSAGES_SPLITTER_PROPORTION" value="0.8" />
+    <option name="USE_DATE_BEFORE_FILTER" value="false" />
+    <option name="USE_DATE_AFTER_FILTER" value="false" />
+    <option name="USE_CHANGE_BEFORE_FILTER" value="false" />
+    <option name="USE_CHANGE_AFTER_FILTER" value="false" />
+    <option name="DATE_BEFORE" value="" />
+    <option name="DATE_AFTER" value="" />
+    <option name="CHANGE_BEFORE" value="" />
+    <option name="CHANGE_AFTER" value="" />
+    <option name="USE_USER_FILTER" value="false" />
+    <option name="USER" value="" />
+  </component>
+  <component name="CodeStyleProjectProfileManger">
+    <option name="PROJECT_PROFILE" />
+    <option name="USE_PROJECT_LEVEL_SETTINGS" value="false" />
+  </component>
+  <component name="CodeStyleSettingsManager">
+    <option name="PER_PROJECT_SETTINGS">
+      <value>
+        <ADDITIONAL_INDENT_OPTIONS fileType="java">
+          <option name="INDENT_SIZE" value="4" />
+          <option name="CONTINUATION_INDENT_SIZE" value="8" />
+          <option name="TAB_SIZE" value="4" />
+          <option name="USE_TAB_CHARACTER" value="false" />
+          <option name="SMART_TABS" value="false" />
+          <option name="LABEL_INDENT_SIZE" value="0" />
+          <option name="LABEL_INDENT_ABSOLUTE" value="false" />
+        </ADDITIONAL_INDENT_OPTIONS>
+        <ADDITIONAL_INDENT_OPTIONS fileType="xml">
+          <option name="INDENT_SIZE" value="4" />
+          <option name="CONTINUATION_INDENT_SIZE" value="8" />
+          <option name="TAB_SIZE" value="4" />
+          <option name="USE_TAB_CHARACTER" value="false" />
+          <option name="SMART_TABS" value="false" />
+          <option name="LABEL_INDENT_SIZE" value="0" />
+          <option name="LABEL_INDENT_ABSOLUTE" value="false" />
+        </ADDITIONAL_INDENT_OPTIONS>
+      </value>
+    </option>
+    <option name="USE_PER_PROJECT_SETTINGS" value="false" />
+  </component>
+  <component name="CompilerConfiguration">
+    <option name="DEFAULT_COMPILER" value="Javac" />
+    <option name="DEPLOY_AFTER_MAKE" value="0" />
+    <resourceExtensions>
+      <entry name=".+\.(properties|xml|html|dtd|tld)" />
+      <entry name=".+\.(gif|png|jpeg|jpg)" />
+    </resourceExtensions>
+    <wildcardResourcePatterns>
+      <entry name="?*.properties" />
+      <entry name="?*.xml" />
+      <entry name="?*.gif" />
+      <entry name="?*.png" />
+      <entry name="?*.jpeg" />
+      <entry name="?*.jpg" />
+      <entry name="?*.html" />
+      <entry name="?*.dtd" />
+      <entry name="?*.tld" />
+    </wildcardResourcePatterns>
+  </component>
+  <component name="Cvs2Configuration">
+    <option name="PRUNE_EMPTY_DIRECTORIES" value="true" />
+    <option name="MERGING_MODE" value="0" />
+    <option name="MERGE_WITH_BRANCH1_NAME" value="HEAD" />
+    <option name="MERGE_WITH_BRANCH2_NAME" value="HEAD" />
+    <option name="RESET_STICKY" value="false" />
+    <option name="CREATE_NEW_DIRECTORIES" value="true" />
+    <option name="DEFAULT_TEXT_FILE_SUBSTITUTION" value="kv" />
+    <option name="PROCESS_UNKNOWN_FILES" value="false" />
+    <option name="PROCESS_DELETED_FILES" value="false" />
+    <option name="PROCESS_IGNORED_FILES" value="false" />
+    <option name="RESERVED_EDIT" value="false" />
+    <option name="CHECKOUT_DATE_OR_REVISION_SETTINGS">
+      <value>
+        <option name="BRANCH" value="" />
+        <option name="DATE" value="" />
+        <option name="USE_BRANCH" value="false" />
+        <option name="USE_DATE" value="false" />
+      </value>
+    </option>
+    <option name="UPDATE_DATE_OR_REVISION_SETTINGS">
+      <value>
+        <option name="BRANCH" value="" />
+        <option name="DATE" value="" />
+        <option name="USE_BRANCH" value="false" />
+        <option name="USE_DATE" value="false" />
+      </value>
+    </option>
+    <option name="SHOW_CHANGES_REVISION_SETTINGS">
+      <value>
+        <option name="BRANCH" value="" />
+        <option name="DATE" value="" />
+        <option name="USE_BRANCH" value="false" />
+        <option name="USE_DATE" value="false" />
+      </value>
+    </option>
+    <option name="SHOW_OUTPUT" value="false" />
+    <option name="ADD_WATCH_INDEX" value="0" />
+    <option name="REMOVE_WATCH_INDEX" value="0" />
+    <option name="UPDATE_KEYWORD_SUBSTITUTION" />
+    <option name="MAKE_NEW_FILES_READONLY" value="false" />
+    <option name="SHOW_CORRUPTED_PROJECT_FILES" value="0" />
+    <option name="TAG_AFTER_PROJECT_COMMIT" value="false" />
+    <option name="OVERRIDE_EXISTING_TAG_FOR_PROJECT" value="true" />
+    <option name="TAG_AFTER_PROJECT_COMMIT_NAME" value="" />
+    <option name="CLEAN_COPY" value="false" />
+  </component>
+  <component name="DependenciesAnalyzeManager">
+    <option name="myForwardDirection" value="false" />
+  </component>
+  <component name="DependencyValidationManager">
+    <option name="SKIP_IMPORT_STATEMENTS" value="false" />
+  </component>
+  <component name="EclipseCompilerSettings">
+    <option name="DEBUGGING_INFO" value="true" />
+    <option name="GENERATE_NO_WARNINGS" value="true" />
+    <option name="DEPRECATION" value="false" />
+    <option name="ADDITIONAL_OPTIONS_STRING" value="" />
+    <option name="MAXIMUM_HEAP_SIZE" value="128" />
+  </component>
+  <component name="EclipseEmbeddedCompilerSettings">
+    <option name="DEBUGGING_INFO" value="true" />
+    <option name="GENERATE_NO_WARNINGS" value="true" />
+    <option name="DEPRECATION" value="false" />
+    <option name="ADDITIONAL_OPTIONS_STRING" value="" />
+    <option name="MAXIMUM_HEAP_SIZE" value="128" />
+  </component>
+  <component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />
+  <component name="EntryPointsManager">
+    <entry_points version="2.0" />
+  </component>
+  <component name="ExportToHTMLSettings">
+    <option name="PRINT_LINE_NUMBERS" value="false" />
+    <option name="OPEN_IN_BROWSER" value="false" />
+    <option name="OUTPUT_DIRECTORY" />
+  </component>
+  <component name="IdProvider" IDEtalkID="D171F99B9178C1675593DC9A76A5CC7E" />
+  <component name="InspectionProjectProfileManager">
+    <option name="PROJECT_PROFILE" value="Project Default" />
+    <option name="USE_PROJECT_PROFILE" value="true" />
+    <version value="1.0" />
+    <profiles>
+      <profile version="1.0" is_locked="false">
+        <option name="myName" value="Project Default" />
+        <option name="myLocal" value="false" />
+        <inspection_tool class="JavaDoc" enabled="false" level="WARNING" enabled_by_default="false">
+          <option name="TOP_LEVEL_CLASS_OPTIONS">
+            <value>
+              <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+              <option name="REQUIRED_TAGS" value="" />
+            </value>
+          </option>
+          <option name="INNER_CLASS_OPTIONS">
+            <value>
+              <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+              <option name="REQUIRED_TAGS" value="" />
+            </value>
+          </option>
+          <option name="METHOD_OPTIONS">
+            <value>
+              <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+              <option name="REQUIRED_TAGS" value="@return@param@throws or @exception" />
+            </value>
+          </option>
+          <option name="FIELD_OPTIONS">
+            <value>
+              <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+              <option name="REQUIRED_TAGS" value="" />
+            </value>
+          </option>
+          <option name="IGNORE_DEPRECATED" value="false" />
+          <option name="IGNORE_JAVADOC_PERIOD" value="true" />
+          <option name="myAdditionalJavadocTags" value="" />
+        </inspection_tool>
+        <inspection_tool class="JavaLangImport" enabled="true" level="WARNING" enabled_by_default="true" />
+        <inspection_tool class="OnDemandImport" enabled="true" level="WARNING" enabled_by_default="true" />
+        <inspection_tool class="RedundantImport" enabled="true" level="WARNING" enabled_by_default="true" />
+        <inspection_tool class="SamePackageImport" enabled="true" level="WARNING" enabled_by_default="true" />
+        <inspection_tool class="UnusedImport" enabled="true" level="WARNING" enabled_by_default="true" />
+      </profile>
+    </profiles>
+    <list size="4">
+      <item index="0" class="java.lang.String" itemvalue="WARNING" />
+      <item index="1" class="java.lang.String" itemvalue="SERVER PROBLEM" />
+      <item index="2" class="java.lang.String" itemvalue="INFO" />
+      <item index="3" class="java.lang.String" itemvalue="ERROR" />
+    </list>
+  </component>
+  <component name="JavacSettings">
+    <option name="DEBUGGING_INFO" value="true" />
+    <option name="GENERATE_NO_WARNINGS" value="false" />
+    <option name="DEPRECATION" value="true" />
+    <option name="ADDITIONAL_OPTIONS_STRING" value="" />
+    <option name="MAXIMUM_HEAP_SIZE" value="128" />
+  </component>
+  <component name="JavadocGenerationManager">
+    <option name="OUTPUT_DIRECTORY" />
+    <option name="OPTION_SCOPE" value="protected" />
+    <option name="OPTION_HIERARCHY" value="true" />
+    <option name="OPTION_NAVIGATOR" value="true" />
+    <option name="OPTION_INDEX" value="true" />
+    <option name="OPTION_SEPARATE_INDEX" value="true" />
+    <option name="OPTION_DOCUMENT_TAG_USE" value="false" />
+    <option name="OPTION_DOCUMENT_TAG_AUTHOR" value="false" />
+    <option name="OPTION_DOCUMENT_TAG_VERSION" value="false" />
+    <option name="OPTION_DOCUMENT_TAG_DEPRECATED" value="true" />
+    <option name="OPTION_DEPRECATED_LIST" value="true" />
+    <option name="OTHER_OPTIONS" value="" />
+    <option name="HEAP_SIZE" />
+    <option name="LOCALE" />
+    <option name="OPEN_IN_BROWSER" value="true" />
+  </component>
+  <component name="JikesSettings">
+    <option name="JIKES_PATH" value="" />
+    <option name="DEBUGGING_INFO" value="true" />
+    <option name="DEPRECATION" value="true" />
+    <option name="GENERATE_NO_WARNINGS" value="false" />
+    <option name="IS_EMACS_ERRORS_MODE" value="true" />
+    <option name="ADDITIONAL_OPTIONS_STRING" value="" />
+  </component>
+  <component name="LogConsolePreferences">
+    <option name="FILTER_ERRORS" value="false" />
+    <option name="FILTER_WARNINGS" value="false" />
+    <option name="FILTER_INFO" value="true" />
+    <option name="CUSTOM_FILTER" />
+  </component>
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+  <component name="PerforceChangeBrowserSettings">
+    <option name="USE_CLIENT_FILTER" value="true" />
+    <option name="CLIENT" value="" />
+  </component>
+  <component name="ProjectDetails">
+    <option name="projectName" value="preload" />
+  </component>
+  <component name="ProjectFileVersion" converted="true" />
+  <component name="ProjectKey">
+    <option name="state" value="project:///Volumes/Android/donut/frameworks/base/tools/preload/preload.ipr" />
+  </component>
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/preload.iml" filepath="$PROJECT_DIR$/preload.iml" />
+    </modules>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_5" assert-keyword="true" jdk-15="true" project-jdk-name="1.5" project-jdk-type="JavaSDK">
+    <output url="file:///tmp/preload" />
+  </component>
+  <component name="RmicSettings">
+    <option name="IS_EANABLED" value="false" />
+    <option name="DEBUGGING_INFO" value="true" />
+    <option name="GENERATE_NO_WARNINGS" value="false" />
+    <option name="GENERATE_IIOP_STUBS" value="false" />
+    <option name="ADDITIONAL_OPTIONS_STRING" value="" />
+  </component>
+  <component name="StarteamConfiguration">
+    <option name="SERVER" value="" />
+    <option name="PORT" value="49201" />
+    <option name="USER" value="" />
+    <option name="PASSWORD" value="" />
+    <option name="PROJECT" value="" />
+    <option name="VIEW" value="" />
+    <option name="ALTERNATIVE_WORKING_PATH" value="" />
+    <option name="LOCK_ON_CHECKOUT" value="false" />
+    <option name="UNLOCK_ON_CHECKIN" value="false" />
+  </component>
+  <component name="Struts Assistant">
+    <option name="showInputs" value="true" />
+    <option name="resources">
+      <value>
+        <option name="strutsPath" />
+        <option name="strutsHelp" />
+      </value>
+    </option>
+    <option name="selectedTaglibs" />
+    <option name="selectedTaglibs" />
+    <option name="myStrutsValidationEnabled" value="true" />
+    <option name="myTilesValidationEnabled" value="true" />
+    <option name="myValidatorValidationEnabled" value="true" />
+    <option name="myReportErrorsAsWarnings" value="true" />
+  </component>
+  <component name="SvnBranchConfigurationManager">
+    <option name="mySupportsUserInfoFilter" value="true" />
+  </component>
+  <component name="SvnChangesBrowserSettings">
+    <option name="USE_AUTHOR_FIELD" value="true" />
+    <option name="AUTHOR" value="" />
+    <option name="LOCATION" value="" />
+    <option name="USE_PROJECT_SETTINGS" value="true" />
+    <option name="USE_ALTERNATE_LOCATION" value="false" />
+  </component>
+  <component name="VCS.FileViewConfiguration">
+    <option name="SELECTED_STATUSES" value="DEFAULT" />
+    <option name="SELECTED_COLUMNS" value="DEFAULT" />
+    <option name="SHOW_FILTERS" value="true" />
+    <option name="CUSTOMIZE_VIEW" value="true" />
+    <option name="SHOW_FILE_HISTORY_AS_TREE" value="true" />
+  </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Perforce" />
+    <mapping directory="/Volumes/Android/donut/frameworks/base" vcs="Git" />
+  </component>
+  <component name="VssConfiguration">
+    <option name="CLIENT_PATH" value="" />
+    <option name="SRCSAFEINI_PATH" value="" />
+    <option name="USER_NAME" value="" />
+    <option name="PWD" value="" />
+    <option name="VSS_IS_INITIALIZED" value="false" />
+    <CheckoutOptions>
+      <option name="COMMENT" value="" />
+      <option name="DO_NOT_GET_LATEST_VERSION" value="false" />
+      <option name="REPLACE_WRITABLE" value="false" />
+      <option name="RECURSIVE" value="false" />
+    </CheckoutOptions>
+    <CheckinOptions>
+      <option name="COMMENT" value="" />
+      <option name="KEEP_CHECKED_OUT" value="false" />
+      <option name="RECURSIVE" value="false" />
+    </CheckinOptions>
+    <AddOptions>
+      <option name="STORE_ONLY_LATEST_VERSION" value="false" />
+      <option name="CHECK_OUT_IMMEDIATELY" value="false" />
+      <option name="FILE_TYPE" value="0" />
+    </AddOptions>
+    <UndocheckoutOptions>
+      <option name="MAKE_WRITABLE" value="false" />
+      <option name="REPLACE_LOCAL_COPY" value="0" />
+      <option name="RECURSIVE" value="false" />
+    </UndocheckoutOptions>
+    <GetOptions>
+      <option name="REPLACE_WRITABLE" value="0" />
+      <option name="MAKE_WRITABLE" value="false" />
+      <option name="ANSWER_NEGATIVELY" value="false" />
+      <option name="ANSWER_POSITIVELY" value="false" />
+      <option name="RECURSIVE" value="false" />
+      <option name="VERSION" />
+    </GetOptions>
+    <VssConfigurableExcludedFilesTag />
+  </component>
+  <component name="antWorkspaceConfiguration">
+    <option name="IS_AUTOSCROLL_TO_SOURCE" value="false" />
+    <option name="FILTER_TARGETS" value="false" />
+  </component>
+  <component name="com.intellij.ide.util.scopeChooser.ScopeChooserConfigurable" proportions="" version="1">
+    <option name="myLastEditedConfigurable" />
+  </component>
+  <component name="com.intellij.jsf.UserDefinedFacesConfigs">
+    <option name="USER_DEFINED_CONFIGS">
+      <value>
+        <list size="0" />
+      </value>
+    </option>
+  </component>
+  <component name="com.intellij.openapi.roots.ui.configuration.projectRoot.ProjectRootMasterDetailsConfigurable" proportions="" version="1">
+    <option name="myPlainMode" value="false" />
+    <option name="myLastEditedConfigurable" />
+  </component>
+  <component name="com.intellij.profile.ui.ErrorOptionsConfigurable" proportions="" version="1">
+    <option name="myLastEditedConfigurable" />
+  </component>
+  <component name="uidesigner-configuration">
+    <option name="INSTRUMENT_CLASSES" value="true" />
+    <option name="COPY_FORMS_RUNTIME_TO_OUTPUT" value="true" />
+    <option name="DEFAULT_LAYOUT_MANAGER" value="GridLayoutManager" />
+  </component>
+</project>
+

base/tools/preload/sorttable.js

@@ -0,0 +1,493 @@
+/*
+  SortTable
+  version 2
+  7th April 2007
+  Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/
+  
+  Instructions:
+  Download this file
+  Add <script src="sorttable.js"></script> to your HTML
+  Add class="sortable" to any table you'd like to make sortable
+  Click on the headers to sort
+  
+  Thanks to many, many people for contributions and suggestions.
+  Licenced as X11: http://www.kryogenix.org/code/browser/licence.html
+  This basically means: do what you want with it.
+*/
+
+ 
+var stIsIE = /*@cc_on!@*/false;
+
+sorttable = {
+  init: function() {
+    // quit if this function has already been called
+    if (arguments.callee.done) return;
+    // flag this function so we don't do the same thing twice
+    arguments.callee.done = true;
+    // kill the timer
+    if (_timer) clearInterval(_timer);
+    
+    if (!document.createElement || !document.getElementsByTagName) return;
+    
+    sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/;
+    
+    forEach(document.getElementsByTagName('table'), function(table) {
+      if (table.className.search(/\bsortable\b/) != -1) {
+        sorttable.makeSortable(table);
+      }
+    });
+    
+  },
+  
+  makeSortable: function(table) {
+    if (table.getElementsByTagName('thead').length == 0) {
+      // table doesn't have a tHead. Since it should have, create one and
+      // put the first table row in it.
+      the = document.createElement('thead');
+      the.appendChild(table.rows[0]);
+      table.insertBefore(the,table.firstChild);
+    }
+    // Safari doesn't support table.tHead, sigh
+    if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0];
+    
+    if (table.tHead.rows.length != 1) return; // can't cope with two header rows
+    
+    // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as
+    // "total" rows, for example). This is B&R, since what you're supposed
+    // to do is put them in a tfoot. So, if there are sortbottom rows,
+    // for backwards compatibility, move them to tfoot (creating it if needed).
+    sortbottomrows = [];
+    for (var i=0; i<table.rows.length; i++) {
+      if (table.rows[i].className.search(/\bsortbottom\b/) != -1) {
+        sortbottomrows[sortbottomrows.length] = table.rows[i];
+      }
+    }
+    if (sortbottomrows) {
+      if (table.tFoot == null) {
+        // table doesn't have a tfoot. Create one.
+        tfo = document.createElement('tfoot');
+        table.appendChild(tfo);
+      }
+      for (var i=0; i<sortbottomrows.length; i++) {
+        tfo.appendChild(sortbottomrows[i]);
+      }
+      delete sortbottomrows;
+    }
+    
+    // work through each column and calculate its type
+    headrow = table.tHead.rows[0].cells;
+    for (var i=0; i<headrow.length; i++) {
+      // manually override the type with a sorttable_type attribute
+      if (!headrow[i].className.match(/\bsorttable_nosort\b/)) { // skip this col
+        mtch = headrow[i].className.match(/\bsorttable_([a-z0-9]+)\b/);
+        if (mtch) { override = mtch[1]; }
+	      if (mtch && typeof sorttable["sort_"+override] == 'function') {
+	        headrow[i].sorttable_sortfunction = sorttable["sort_"+override];
+	      } else {
+	        headrow[i].sorttable_sortfunction = sorttable.guessType(table,i);
+	      }
+	      // make it clickable to sort
+	      headrow[i].sorttable_columnindex = i;
+	      headrow[i].sorttable_tbody = table.tBodies[0];
+	      dean_addEvent(headrow[i],"click", function(e) {
+
+          if (this.className.search(/\bsorttable_sorted\b/) != -1) {
+            // if we're already sorted by this column, just 
+            // reverse the table, which is quicker
+            sorttable.reverse(this.sorttable_tbody);
+            this.className = this.className.replace('sorttable_sorted',
+                                                    'sorttable_sorted_reverse');
+            this.removeChild(document.getElementById('sorttable_sortfwdind'));
+            sortrevind = document.createElement('span');
+            sortrevind.id = "sorttable_sortrevind";
+            sortrevind.innerHTML = stIsIE ? '&nbsp<font face="webdings">5</font>' : '&nbsp;&#x25B4;';
+            this.appendChild(sortrevind);
+            return;
+          }
+          if (this.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
+            // if we're already sorted by this column in reverse, just 
+            // re-reverse the table, which is quicker
+            sorttable.reverse(this.sorttable_tbody);
+            this.className = this.className.replace('sorttable_sorted_reverse',
+                                                    'sorttable_sorted');
+            this.removeChild(document.getElementById('sorttable_sortrevind'));
+            sortfwdind = document.createElement('span');
+            sortfwdind.id = "sorttable_sortfwdind";
+            sortfwdind.innerHTML = stIsIE ? '&nbsp<font face="webdings">6</font>' : '&nbsp;&#x25BE;';
+            this.appendChild(sortfwdind);
+            return;
+          }
+          
+          // remove sorttable_sorted classes
+          theadrow = this.parentNode;
+          forEach(theadrow.childNodes, function(cell) {
+            if (cell.nodeType == 1) { // an element
+              cell.className = cell.className.replace('sorttable_sorted_reverse','');
+              cell.className = cell.className.replace('sorttable_sorted','');
+            }
+          });
+          sortfwdind = document.getElementById('sorttable_sortfwdind');
+          if (sortfwdind) { sortfwdind.parentNode.removeChild(sortfwdind); }
+          sortrevind = document.getElementById('sorttable_sortrevind');
+          if (sortrevind) { sortrevind.parentNode.removeChild(sortrevind); }
+          
+          this.className += ' sorttable_sorted';
+          sortfwdind = document.createElement('span');
+          sortfwdind.id = "sorttable_sortfwdind";
+          sortfwdind.innerHTML = stIsIE ? '&nbsp<font face="webdings">6</font>' : '&nbsp;&#x25BE;';
+          this.appendChild(sortfwdind);
+
+	        // build an array to sort. This is a Schwartzian transform thing,
+	        // i.e., we "decorate" each row with the actual sort key,
+	        // sort based on the sort keys, and then put the rows back in order
+	        // which is a lot faster because you only do getInnerText once per row
+	        row_array = [];
+	        col = this.sorttable_columnindex;
+	        rows = this.sorttable_tbody.rows;
+	        for (var j=0; j<rows.length; j++) {
+	          row_array[row_array.length] = [sorttable.getInnerText(rows[j].cells[col]), rows[j]];
+	        }
+	        /* If you want a stable sort, uncomment the following line */
+	        //sorttable.shaker_sort(row_array, this.sorttable_sortfunction);
+	        /* and comment out this one */
+	        row_array.sort(this.sorttable_sortfunction);
+	        
+	        tb = this.sorttable_tbody;
+	        for (var j=0; j<row_array.length; j++) {
+	          tb.appendChild(row_array[j][1]);
+	        }
+	        
+	        delete row_array;
+	      });
+	    }
+    }
+  },
+  
+  guessType: function(table, column) {
+    // guess the type of a column based on its first non-blank row
+    sortfn = sorttable.sort_alpha;
+    for (var i=0; i<table.tBodies[0].rows.length; i++) {
+      text = sorttable.getInnerText(table.tBodies[0].rows[i].cells[column]);
+      if (text != '') {
+        if (text.match(/^-?[£$¤]?[\d,.]+%?$/)) {
+          return sorttable.sort_numeric;
+        }
+        // check for a date: dd/mm/yyyy or dd/mm/yy 
+        // can have / or . or - as separator
+        // can be mm/dd as well
+        possdate = text.match(sorttable.DATE_RE)
+        if (possdate) {
+          // looks like a date
+          first = parseInt(possdate[1]);
+          second = parseInt(possdate[2]);
+          if (first > 12) {
+            // definitely dd/mm
+            return sorttable.sort_ddmm;
+          } else if (second > 12) {
+            return sorttable.sort_mmdd;
+          } else {
+            // looks like a date, but we can't tell which, so assume
+            // that it's dd/mm (English imperialism!) and keep looking
+            sortfn = sorttable.sort_ddmm;
+          }
+        }
+      }
+    }
+    return sortfn;
+  },
+  
+  getInnerText: function(node) {
+    // gets the text we want to use for sorting for a cell.
+    // strips leading and trailing whitespace.
+    // this is *not* a generic getInnerText function; it's special to sorttable.
+    // for example, you can override the cell text with a customkey attribute.
+    // it also gets .value for <input> fields.
+    
+    hasInputs = (typeof node.getElementsByTagName == 'function') &&
+                 node.getElementsByTagName('input').length;
+    
+    if (node.getAttribute("sorttable_customkey") != null) {
+      return node.getAttribute("sorttable_customkey");
+    }
+    else if (typeof node.textContent != 'undefined' && !hasInputs) {
+      return node.textContent.replace(/^\s+|\s+$/g, '');
+    }
+    else if (typeof node.innerText != 'undefined' && !hasInputs) {
+      return node.innerText.replace(/^\s+|\s+$/g, '');
+    }
+    else if (typeof node.text != 'undefined' && !hasInputs) {
+      return node.text.replace(/^\s+|\s+$/g, '');
+    }
+    else {
+      switch (node.nodeType) {
+        case 3:
+          if (node.nodeName.toLowerCase() == 'input') {
+            return node.value.replace(/^\s+|\s+$/g, '');
+          }
+        case 4:
+          return node.nodeValue.replace(/^\s+|\s+$/g, '');
+          break;
+        case 1:
+        case 11:
+          var innerText = '';
+          for (var i = 0; i < node.childNodes.length; i++) {
+            innerText += sorttable.getInnerText(node.childNodes[i]);
+          }
+          return innerText.replace(/^\s+|\s+$/g, '');
+          break;
+        default:
+          return '';
+      }
+    }
+  },
+  
+  reverse: function(tbody) {
+    // reverse the rows in a tbody
+    newrows = [];
+    for (var i=0; i<tbody.rows.length; i++) {
+      newrows[newrows.length] = tbody.rows[i];
+    }
+    for (var i=newrows.length-1; i>=0; i--) {
+       tbody.appendChild(newrows[i]);
+    }
+    delete newrows;
+  },
+  
+  /* sort functions
+     each sort function takes two parameters, a and b
+     you are comparing a[0] and b[0] */
+  sort_numeric: function(a,b) {
+    aa = parseFloat(a[0].replace(/[^0-9.-]/g,''));
+    if (isNaN(aa)) aa = 0;
+    bb = parseFloat(b[0].replace(/[^0-9.-]/g,'')); 
+    if (isNaN(bb)) bb = 0;
+    return aa-bb;
+  },
+  sort_alpha: function(a,b) {
+    if (a[0]==b[0]) return 0;
+    if (a[0]<b[0]) return -1;
+    return 1;
+  },
+  sort_ddmm: function(a,b) {
+    mtch = a[0].match(sorttable.DATE_RE);
+    y = mtch[3]; m = mtch[2]; d = mtch[1];
+    if (m.length == 1) m = '0'+m;
+    if (d.length == 1) d = '0'+d;
+    dt1 = y+m+d;
+    mtch = b[0].match(sorttable.DATE_RE);
+    y = mtch[3]; m = mtch[2]; d = mtch[1];
+    if (m.length == 1) m = '0'+m;
+    if (d.length == 1) d = '0'+d;
+    dt2 = y+m+d;
+    if (dt1==dt2) return 0;
+    if (dt1<dt2) return -1;
+    return 1;
+  },
+  sort_mmdd: function(a,b) {
+    mtch = a[0].match(sorttable.DATE_RE);
+    y = mtch[3]; d = mtch[2]; m = mtch[1];
+    if (m.length == 1) m = '0'+m;
+    if (d.length == 1) d = '0'+d;
+    dt1 = y+m+d;
+    mtch = b[0].match(sorttable.DATE_RE);
+    y = mtch[3]; d = mtch[2]; m = mtch[1];
+    if (m.length == 1) m = '0'+m;
+    if (d.length == 1) d = '0'+d;
+    dt2 = y+m+d;
+    if (dt1==dt2) return 0;
+    if (dt1<dt2) return -1;
+    return 1;
+  },
+  
+  shaker_sort: function(list, comp_func) {
+    // A stable sort function to allow multi-level sorting of data
+    // see: http://en.wikipedia.org/wiki/Cocktail_sort
+    // thanks to Joseph Nahmias
+    var b = 0;
+    var t = list.length - 1;
+    var swap = true;
+
+    while(swap) {
+        swap = false;
+        for(var i = b; i < t; ++i) {
+            if ( comp_func(list[i], list[i+1]) > 0 ) {
+                var q = list[i]; list[i] = list[i+1]; list[i+1] = q;
+                swap = true;
+            }
+        } // for
+        t--;
+
+        if (!swap) break;
+
+        for(var i = t; i > b; --i) {
+            if ( comp_func(list[i], list[i-1]) < 0 ) {
+                var q = list[i]; list[i] = list[i-1]; list[i-1] = q;
+                swap = true;
+            }
+        } // for
+        b++;
+
+    } // while(swap)
+  }  
+}
+
+/* ******************************************************************
+   Supporting functions: bundled here to avoid depending on a library
+   ****************************************************************** */
+
+// Dean Edwards/Matthias Miller/John Resig
+
+/* for Mozilla/Opera9 */
+if (document.addEventListener) {
+    document.addEventListener("DOMContentLoaded", sorttable.init, false);
+}
+
+/* for Internet Explorer */
+/*@cc_on @*/
+/*@if (@_win32)
+    document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
+    var script = document.getElementById("__ie_onload");
+    script.onreadystatechange = function() {
+        if (this.readyState == "complete") {
+            sorttable.init(); // call the onload handler
+        }
+    };
+/*@end @*/
+
+/* for Safari */
+if (/WebKit/i.test(navigator.userAgent)) { // sniff
+    var _timer = setInterval(function() {
+        if (/loaded|complete/.test(document.readyState)) {
+            sorttable.init(); // call the onload handler
+        }
+    }, 10);
+}
+
+/* for other browsers */
+window.onload = sorttable.init;
+
+// written by Dean Edwards, 2005
+// with input from Tino Zijdel, Matthias Miller, Diego Perini
+
+// http://dean.edwards.name/weblog/2005/10/add-event/
+
+function dean_addEvent(element, type, handler) {
+	if (element.addEventListener) {
+		element.addEventListener(type, handler, false);
+	} else {
+		// assign each event handler a unique ID
+		if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++;
+		// create a hash table of event types for the element
+		if (!element.events) element.events = {};
+		// create a hash table of event handlers for each element/event pair
+		var handlers = element.events[type];
+		if (!handlers) {
+			handlers = element.events[type] = {};
+			// store the existing event handler (if there is one)
+			if (element["on" + type]) {
+				handlers[0] = element["on" + type];
+			}
+		}
+		// store the event handler in the hash table
+		handlers[handler.$$guid] = handler;
+		// assign a global event handler to do all the work
+		element["on" + type] = handleEvent;
+	}
+};
+// a counter used to create unique IDs
+dean_addEvent.guid = 1;
+
+function removeEvent(element, type, handler) {
+	if (element.removeEventListener) {
+		element.removeEventListener(type, handler, false);
+	} else {
+		// delete the event handler from the hash table
+		if (element.events && element.events[type]) {
+			delete element.events[type][handler.$$guid];
+		}
+	}
+};
+
+function handleEvent(event) {
+	var returnValue = true;
+	// grab the event object (IE uses a global event object)
+	event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
+	// get a reference to the hash table of event handlers
+	var handlers = this.events[event.type];
+	// execute each event handler
+	for (var i in handlers) {
+		this.$$handleEvent = handlers[i];
+		if (this.$$handleEvent(event) === false) {
+			returnValue = false;
+		}
+	}
+	return returnValue;
+};
+
+function fixEvent(event) {
+	// add W3C standard event methods
+	event.preventDefault = fixEvent.preventDefault;
+	event.stopPropagation = fixEvent.stopPropagation;
+	return event;
+};
+fixEvent.preventDefault = function() {
+	this.returnValue = false;
+};
+fixEvent.stopPropagation = function() {
+  this.cancelBubble = true;
+}
+
+// Dean's forEach: http://dean.edwards.name/base/forEach.js
+/*
+	forEach, version 1.0
+	Copyright 2006, Dean Edwards
+	License: http://www.opensource.org/licenses/mit-license.php
+*/
+
+// array-like enumeration
+if (!Array.forEach) { // mozilla already supports this
+	Array.forEach = function(array, block, context) {
+		for (var i = 0; i < array.length; i++) {
+			block.call(context, array[i], i, array);
+		}
+	};
+}
+
+// generic enumeration
+Function.prototype.forEach = function(object, block, context) {
+	for (var key in object) {
+		if (typeof this.prototype[key] == "undefined") {
+			block.call(context, object[key], key, object);
+		}
+	}
+};
+
+// character enumeration
+String.forEach = function(string, block, context) {
+	Array.forEach(string.split(""), function(chr, index) {
+		block.call(context, chr, index, string);
+	});
+};
+
+// globally resolve forEach enumeration
+var forEach = function(object, block, context) {
+	if (object) {
+		var resolve = Object; // default
+		if (object instanceof Function) {
+			// functions have a "length" property
+			resolve = Function;
+		} else if (object.forEach instanceof Function) {
+			// the object implements a custom forEach method so use that
+			object.forEach(block, context);
+			return;
+		} else if (typeof object == "string") {
+			// the object is a string
+			resolve = String;
+		} else if (typeof object.length == "number") {
+			// the object is array-like
+			resolve = Array;
+		}
+		resolve.forEach(object, block, context);
+	}
+};
+