Revert "Move frameworks/base/tools/ to frameworks/tools/"
This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/preload/LoadedClass.java b/tools/preload/LoadedClass.java
new file mode 100644
index 0000000..86e5dfc
--- /dev/null
+++ b/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;
+ }
+}