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/*
* Copyright (C) 2024 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.runner.utils;
import com.android.ddmlib.IDevice;
import com.android.tradefed.device.CollectingOutputReceiver;
import com.android.tradefed.device.DeviceNotAvailableException;
import com.android.tradefed.device.ITestDevice;
import com.android.tradefed.log.LogUtil.CLog;
import java.util.concurrent.TimeUnit;
import java.io.File;
/**
* Helper class to execute async adb commands using nohup.
*
* <p>
*
* <p>If a process needs to keep running even after USB is disconnected use this helper.
*/
public class NohupCommandHelper {
private static final int DEFAULT_MAX_RETRY_ATTEMPTS = 0;
public static final String NOHUP_LOG = "nohup.log";
private static final int DEFAULT_TIMEOUT = 120; // 2 minutes
/** Helper method to execute adb command with nohup */
public static void executeAdbNohupCommand(ITestDevice device, String cmd, int timeout)
throws DeviceNotAvailableException {
String logPath =
String.format(
"%s/%s", device.getMountPoint(IDevice.MNT_EXTERNAL_STORAGE), NOHUP_LOG);
File out = new File(logPath);
if (!device.doesFileExist(out.getParent())) {
throw new IllegalArgumentException("Output log's directory doesn't exist.");
}
StringBuilder builder = new StringBuilder();
builder.append("nohup");
builder.append(" ");
builder.append(cmd);
builder.append(" ");
// Re-route stdout to a log.
builder.append(String.format(">> %s", logPath));
builder.append(" ");
// Re-route errors to stdout.
builder.append("2>&1");
String finalCommand = builder.toString();
new Thread(
new Runnable() {
@Override
public void run() {
try {
CLog.d(
"About to run async command on device %s: %s",
device.getSerialNumber(), finalCommand);
device.executeShellCommand(
finalCommand,
/* doing nothing with the output */
new CollectingOutputReceiver(),
timeout,
TimeUnit.SECONDS,
DEFAULT_MAX_RETRY_ATTEMPTS);
} catch (DeviceNotAvailableException e) {
CLog.e(
"Device became not available while running: %s",
finalCommand);
CLog.e(e);
}
}
})
.start();
}
public static void executeAdbNohupCommand(ITestDevice device, String cmd)
throws DeviceNotAvailableException {
executeAdbNohupCommand(device, cmd, DEFAULT_TIMEOUT);
}
}
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