/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.hotspot.code;

import sun.hotspot.WhiteBox;

public class CodeBlob {

  private static final WhiteBox WB = WhiteBox.getWhiteBox();

  public static CodeBlob[] getCodeBlobs(BlobType type) {

    Object[] obj = WB.getCodeHeapEntries(type.id);

    if (obj == null) {

      return null;

    }

    CodeBlob[] result = new CodeBlob[obj.length];

    for (int i = 0, n = result.length; i < n; ++i) {

      result[i] = new CodeBlob((Object[]) obj[i]);

    }

    return result;

  }

  public static CodeBlob getCodeBlob(long addr) {

    Object[] obj = WB.getCodeBlob(addr);

    if (obj == null) {

      return null;

    }

    return new CodeBlob(obj);

  }

  protected CodeBlob(Object[] obj) {

    assert obj.length == 4;

    name = (String) obj[0];

    size = (Integer) obj[1];

    int blob_type_index = (Integer) obj[2];

    if (blob_type_index == -1) { // AOT

      code_blob_type = null;

    } else {

      code_blob_type = BlobType.values()[blob_type_index];

      assert code_blob_type.id == (Integer) obj[2];

    }

    address = (Long) obj[3];

  }

  public final String name;

  public final int size;

  public final BlobType code_blob_type;

  public final long address;

  @Override

  public String toString() {

    return "CodeBlob{"

        + "name=" + name

        + ", size=" + size

        + ", code_blob_type=" + code_blob_type

        + ", address=" + address

        + '}';

  }

}