org.elasticsearch.common.jna.CLibrary Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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() {
}
}