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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 com.android.tradefed.targetprep;
import com.android.tradefed.build.IBuildInfo;
import com.android.tradefed.config.Option;
import com.android.tradefed.config.OptionClass;
import com.android.tradefed.device.CollectingOutputReceiver;
import com.android.tradefed.device.DeviceNotAvailableException;
import com.android.tradefed.device.ITestDevice;
import com.android.tradefed.log.ITestLogger;
import com.android.tradefed.log.LogUtil.CLog;
import com.android.tradefed.result.ByteArrayInputStreamSource;
import com.android.tradefed.result.ITestLoggerReceiver;
import com.android.tradefed.result.LogDataType;
import com.android.tradefed.util.StreamUtil;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* A {@link ITargetCleaner} that runs 'dumpsys meminfo --unreachable -a' to identify the unreachable
* native memory currently held by each process.
* <p>
* Note: this preparer requires N platform or newer.
*/
@OptionClass(alias = "native-leak-collector")
public class NativeLeakCollector implements ITestLoggerReceiver, ITargetCleaner {
private static final String UNREACHABLE_MEMINFO_CMD = "dumpsys -t %d meminfo --unreachable -a";
private static final String DIRECT_UNREACHABLE_CMD = "dumpsys -t %d %s --unreachable";
private static final String OUTPUT_HEADER = "\nExecuted command: %s\n";
private ITestLogger mTestLogger;
@Option(name = "disable", description = "If this preparer should be disabled.")
private boolean mDisable = false;
@Option(name = "dump-timeout", description = "Timeout limit for dumping unreachable native "
+ "memory allocation information. Can be in any valid duration format, e.g. 5m, 1h.",
isTimeVal = true)
private long mDumpTimeout = 5 * 60 * 1000; // defaults to 5m
@Option(name = "log-filename", description = "The filename to give this log.")
private String mLogFilename = "unreachable-meminfo";
@Option(name = "additional-proc", description = "A list indicating any additional names to "
+ "query for unreachable native memory.")
private List<String> mAdditionalProc = new ArrayList<String>();
@Option(name = "additional-dump-timeout", description = "An additional timeout limit for any "
+ "direct unreachable memory dump commands specified by the 'additional-procs' option. "
+ "Can be in any valid duration format, e.g. 5m, 1h.",
isTimeVal = true)
private long mAdditionalDumpTimeout = 1 * 60 * 1000; // defaults to 1m
/**
* {@inheritDoc}
*/
@Override
public void setUp(ITestDevice device, IBuildInfo buildInfo)
throws TargetSetupError, BuildError, DeviceNotAvailableException {
// No-op
}
/**
* {@inheritDoc}
*/
@Override
public void tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable e)
throws DeviceNotAvailableException {
if (mDisable || (e instanceof DeviceNotAvailableException)) {
return;
}
CollectingOutputReceiver receiver = new CollectingOutputReceiver();
String allCommand = String.format(UNREACHABLE_MEMINFO_CMD, mDumpTimeout / 1000);
writeToReceiver(String.format(OUTPUT_HEADER, allCommand), receiver);
device.executeShellCommand(allCommand, receiver, mDumpTimeout, TimeUnit.MILLISECONDS, 1);
for (String proc : mAdditionalProc) {
String procCommand = String.format(DIRECT_UNREACHABLE_CMD,
mAdditionalDumpTimeout / 1000, proc);
writeToReceiver(String.format(OUTPUT_HEADER, procCommand), receiver);
device.executeShellCommand(procCommand, receiver, mAdditionalDumpTimeout,
TimeUnit.MILLISECONDS, 1);
}
if (receiver.getOutput() != null && !receiver.getOutput().isEmpty()) {
if (mTestLogger != null) {
ByteArrayInputStreamSource byteOutput =
new ByteArrayInputStreamSource(receiver.getOutput().getBytes());
mTestLogger.testLog(mLogFilename, LogDataType.TEXT, byteOutput);
StreamUtil.cancel(byteOutput);
} else {
CLog.w("No test logger available, printing output here:\n%s", receiver.getOutput());
}
}
}
private void writeToReceiver (String msg, CollectingOutputReceiver receiver) {
byte[] msgBytes = msg.getBytes();
int byteCount = msgBytes.length;
receiver.addOutput(msgBytes, 0, byteCount);
}
/**
* {@inheritDoc}
*/
@Override
public void setTestLogger(ITestLogger testLogger) {
mTestLogger = testLogger;
}
}
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