org.elasticsearch.common.jna.CLibrary Maven / Gradle / Ivy
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* 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.common.jna;
import com.sun.jna.Native;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
/**
*
*/
public class CLibrary {
private static ESLogger logger = Loggers.getLogger(CLibrary.class);
public static final int MCL_CURRENT = 1;
public static final int MCL_FUTURE = 2;
public static final int ENOMEM = 12;
static {
try {
Native.register("c");
} catch (NoClassDefFoundError e) {
logger.warn("jna not found. native methods (mlockall) will be disabled.");
} catch (UnsatisfiedLinkError e) {
logger.debug("unable to link C library. native methods (mlockall) will be disabled.");
}
}
public static native int mlockall(int flags);
public static native int munlockall();
private CLibrary() {
}
}