/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.cassandra.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.jna.Native;
public final class CLibrary
{
private static Logger logger = LoggerFactory.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.info("JNA not found. Native methods will be disabled.");
}
catch (UnsatisfiedLinkError e)
{
logger.info("Unable to link C library. Native methods will be disabled.");
}
}
public static native int mlockall(int flags);
public static native int munlockall();
private CLibrary() {}
}