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/*
* Copyright (C) 2016 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.
*/
package art;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PrintThread {
public static void print(String[][] stack) {
System.out.println("---------");
for (String[] stackElement : stack) {
for (String part : stackElement) {
System.out.print(' ');
System.out.print(part);
}
System.out.println();
}
}
public static void print(Thread t, int start, int max) {
print(getStackTrace(t, start, max));
}
// We have to ignore some threads when printing all stack traces. These are threads that may or
// may not exist depending on the environment.
public final static String IGNORE_THREAD_NAME_REGEX =
"Binder:|RenderThread|hwuiTask|Jit thread pool worker|Instr:|JDWP|Profile Saver|main|" +
"queued-work-looper|InstrumentationConnectionThread|intel_svc_streamer_thread";
public final static Matcher IGNORE_THREADS =
Pattern.compile(IGNORE_THREAD_NAME_REGEX).matcher("");
// We have to skip the stack of some threads when printing all stack traces. These are threads
// that may have a different call stack (e.g., when run as an app), or may be in a
// non-deterministic state.
public final static String CUT_STACK_THREAD_NAME_REGEX = "Daemon|main";
public final static Matcher CUT_STACK_THREADS =
Pattern.compile(CUT_STACK_THREAD_NAME_REGEX).matcher("");
public static void printAll(Object[][] stacks) {
List<String> stringified = new ArrayList<String>(stacks.length);
for (Object[] stackInfo : stacks) {
Thread t = (Thread)stackInfo[0];
String name = (t != null) ? t.getName() : "null";
String stackSerialization;
if (CUT_STACK_THREADS.reset(name).find()) {
// Do not print daemon stacks, as they're non-deterministic.
stackSerialization = "<not printed>";
} else if (IGNORE_THREADS.reset(name).find()) {
// Skip IGNORE_THREADS.
continue;
} else {
StringBuilder sb = new StringBuilder();
for (String[] stackElement : (String[][])stackInfo[1]) {
for (String part : stackElement) {
sb.append(' ');
sb.append(part);
}
sb.append('\n');
}
stackSerialization = sb.toString();
}
stringified.add(name + "\n" + stackSerialization);
}
Collections.sort(stringified);
for (String s : stringified) {
System.out.println("---------");
System.out.println(s);
}
}
public static native String[][] getStackTrace(Thread thread, int start, int max);
}