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The lmdbjni osx 64 bit native libraries

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/**
 * Copyright (C) 2013, RedHat, Inc.
 *
 *    http://www.redhat.com/
 *
 * 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 org.fusesource.lmdbjni;

/**
 * A helper base class which is used to track a pointer to a native
 * structure or class.
 *
 * @author Hiram Chirino
 */
class NativeObject {

  protected long self;

  protected NativeObject(long self) {
    this.self = self;
    if (self == 0) {
      throw new OutOfMemoryError("Failure allocating native heap memory");
    }
  }

  long pointer() {
    checkAllocated();
    return self;
  }

  public boolean isAllocated() {
    return self != 0;
  }

  protected void checkAllocated() {
    if (!isAllocated()) {
      throw new LMDBException("Native object has been freed.");
    }
  }

}