Revert "Move frameworks/base/tools/ to frameworks/tools/"
This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/preload/Operation.java b/tools/preload/Operation.java
new file mode 100644
index 0000000..4f1938e
--- /dev/null
+++ b/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();
+ }
+
+}