/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.bootstrap;
import org.apache.lucene.util.Constants;
import org.elasticsearch.common.io.PathUtils;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.nio.file.Files;
import java.util.List;
import static org.hamcrest.Matchers.anyOf;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
public class EvilJNANativesTests extends ESTestCase {
public void testSetMaximumNumberOfThreads() throws IOException {
if (Constants.LINUX) {
final List<String> lines = Files.readAllLines(PathUtils.get("/proc/self/limits"));
if (!lines.isEmpty()) {
for (final String line : lines) {
if (line != null && line.startsWith("Max processes")) {
final String[] fields = line.split("\\s+");
final long limit =
"unlimited".equals(fields[2])
? JNACLibrary.RLIM_INFINITY
: Long.parseLong(fields[2]);
assertThat(JNANatives.MAX_NUMBER_OF_THREADS, equalTo(limit));
return;
}
}
}
fail("should have read max processes from /proc/self/limits");
} else {
assertThat(JNANatives.MAX_NUMBER_OF_THREADS, equalTo(-1L));
}
}
public void testSetMaxSizeVirtualMemory() throws IOException {
if (Constants.LINUX) {
final List<String> lines = Files.readAllLines(PathUtils.get("/proc/self/limits"));
if (!lines.isEmpty()) {
for (final String line : lines) {
if (line != null && line.startsWith("Max address space")) {
final String[] fields = line.split("\\s+");
final String limit = fields[3];
assertThat(
JNANatives.rlimitToString(JNANatives.MAX_SIZE_VIRTUAL_MEMORY),
equalTo(limit));
return;
}
}
}
fail("should have read max size virtual memory from /proc/self/limits");
} else if (Constants.MAC_OS_X) {
assertThat(
JNANatives.MAX_SIZE_VIRTUAL_MEMORY,
anyOf(equalTo(Long.MIN_VALUE), greaterThanOrEqualTo(0L)));
} else {
assertThat(JNANatives.MAX_SIZE_VIRTUAL_MEMORY, equalTo(Long.MIN_VALUE));
}
}
}