blob: e5bd8f17405afecbe3122ab2ca0c0d7bec232cda [file] [log] [blame]
/*
* Copyright (C) 2017 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.Arrays;
public class Test927 {
public static void run() throws Exception {
doTest();
}
private static void doTest() {
int all1 = Runtime.getRuntime().availableProcessors();
int all2 = getAvailableProcessors();
if (all1 != all2) {
throw new RuntimeException("Available processors doesn't match: " + all1 + " vs " + all2);
}
System.out.println("availableProcessors OK");
Object info[] = getTimerInfo();
System.out.println(Arrays.toString(info));
// getTime checks.
// Note: there isn't really much to check independent from the implementation. So we check
// a few details of the ART implementation. This may fail on other runtimes.
long time1 = getTime();
long time2 = getTime();
// Under normal circumstances, time1 <= time2.
if (time2 < time1) {
throw new RuntimeException("Time unexpectedly decreased: " + time1 + " vs " + time2);
}
long time3 = System.nanoTime();
long time4 = getTime();
final long MINUTE = 60l * 1000 * 1000 * 1000;
if (time4 < time3 || (time4 - time3 > MINUTE)) {
throw new RuntimeException("Time unexpectedly divergent: " + time3 + " vs " + time4);
}
System.out.println("Time OK");
}
private static native int getAvailableProcessors();
private static native Object[] getTimerInfo();
private static native long getTime();
}