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products/sources/formale Sprachen/Java/Openjdk/src/hotspot/share/cds/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 2 kB

Quelle dynamicArchive.hpp Sprache: C

/*
* Copyright (c) 2019, 2022, 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.
*
*/

#ifndef SHARE_CDS_DYNAMICARCHIVE_HPP
#define SHARE_CDS_DYNAMICARCHIVE_HPP

#include "cds/filemap.hpp"
#include "classfile/compactHashtable.hpp"
#include "memory/allStatic.hpp"
#include "memory/memRegion.hpp"
#include "memory/virtualspace.hpp"
#include "oops/oop.hpp"
#include "utilities/exceptions.hpp"
#include "utilities/macros.hpp"

#if INCLUDE_CDS

class DynamicArchiveHeader : public FileMapHeader {
  friend class CDSConstants;
private:
  int _base_header_crc;
  int _base_region_crc[MetaspaceShared::n_regions];

public:
  int base_header_crc() const { return _base_header_crc; }
  int base_region_crc(int i) const {
    assert(is_valid_region(i), "must be");
    return _base_region_crc[i];
  }

  void set_base_header_crc(int c) { _base_header_crc = c; }
  void set_base_region_crc(int i, int c) {
    assert(is_valid_region(i), "must be");
    _base_region_crc[i] = c;
  }
};

class DynamicArchive : AllStatic {
public:
  static void check_for_dynamic_dump();
  static bool should_dump_at_vm_exit();
  static void prepare_for_dump_at_exit();
  static void dump_for_jcmd(const char* archive_name, TRAPS);
  static void dump(const char* archive_name, TRAPS);
  static bool is_mapped() { return FileMapInfo::dynamic_info() != NULL; }
  static bool validate(FileMapInfo* dynamic_info);
};
#endif // INCLUDE_CDS
#endif // SHARE_CDS_DYNAMICARCHIVE_HPP

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