infer_clone/infer/tests/codetoanalyze/java/starvation/AsyncTaskGet.java

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1.3 KiB

/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import android.os.AsyncTask;
import android.support.annotation.UiThread;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
class AsyncTaskGet {
CountTask task;
Object lock;
@UiThread
void taskGetOnUiThreadBad() throws InterruptedException, ExecutionException {
task.get();
}
@UiThread
void taskGetWithTimeoutOnUiThreadOk()
throws TimeoutException, InterruptedException, ExecutionException {
task.get(1000, TimeUnit.NANOSECONDS);
}
@UiThread
void lockOnUiThreadBad() {
synchronized (lock) {
}
}
void taskGetUnderLock() throws InterruptedException, ExecutionException {
synchronized (lock) {
task.get();
}
}
void taskGetonBGThreadOk() throws InterruptedException, ExecutionException {
task.get();
}
}
class CountTask extends AsyncTask<Integer, Void, Long> {
protected Long doInBackground(Integer... ints) {
long totalSize = 0;
for (int i = 0; i < ints.length; i++) {
totalSize += ints[i];
if (isCancelled()) break;
}
return totalSize;
}
}