/*

 * Copyright (c) 2014, 2018, 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_VM_CLASSFILE_SHAREDCLASSUTIL_HPP

#define SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP

#include "classfile/sharedPathsMiscInfo.hpp"

#include "memory/filemap.hpp"

#include "classfile/classLoaderExt.hpp"

#include "classfile/dictionary.hpp"

#include "classfile/systemDictionaryShared.hpp"

#include "oops/klass.hpp"

class FileMapHeaderExt: public FileMapInfo::FileMapHeader {

public:

  jshort _app_class_paths_start_index;  // Index of first app classpath entry

  jshort _app_module_paths_start_index; // Index of first module path entry

  bool   _verify_local;                 // BytecodeVerificationLocal setting

  bool   _verify_remote;                // BytecodeVerificationRemote setting

  bool   _has_platform_or_app_classes;  // Archive contains app classes

  FileMapHeaderExt() {

    _has_platform_or_app_classes = true;

  }

  virtual void populate(FileMapInfo* mapinfo, size_t alignment);

  virtual bool validate();

};

// In addition to SharedPathsMiscInfo, the following information is also stored

//

//

// + The value of Arguments::get_appclasspath() used during dumping.

//

class SharedPathsMiscInfoExt : public SharedPathsMiscInfo {

private:

  int   _app_offset;

public:

  enum {

    APP       = 5,

    MODULE    = 6

  };

  virtual const char* type_name(int type) {

    switch (type) {

    case APP:     return "APP";

    case MODULE:  return "MODULE";

    default:      return SharedPathsMiscInfo::type_name(type);

    }

  }

  virtual void print_path(outputStream* out, int type, const char* path);

  SharedPathsMiscInfoExt() : SharedPathsMiscInfo() {

    _app_offset = 0;

  }

  SharedPathsMiscInfoExt(char* buf, int size) : SharedPathsMiscInfo(buf, size) {

    _app_offset = 0;

  }

  virtual bool check(jint type, const char* path);

  void add_app_classpath(const char* path) {

    add_path(path, APP);

  }

  void record_app_offset() {

    _app_offset = get_used_bytes();

  }

  void pop_app() {

    _cur_ptr = _buf_start + _app_offset;

    write_jint(0);

  }

};

class SharedClassPathEntryExt: public SharedClassPathEntry {

public:

  //Maniest attributes

  bool _is_signed;

  void set_manifest(Array<u1>* manifest) {

    _manifest = manifest;

  }

};

class SharedClassUtil : AllStatic {

public:

  static SharedPathsMiscInfo* allocate_shared_paths_misc_info() {

    return new SharedPathsMiscInfoExt();

  }

  static SharedPathsMiscInfo* allocate_shared_paths_misc_info(char* buf, int size) {

    return new SharedPathsMiscInfoExt(buf, size);

  }

  static FileMapInfo::FileMapHeader* allocate_file_map_header() {

    return new FileMapHeaderExt();

  }

  static size_t file_map_header_size() {

    return sizeof(FileMapHeaderExt);

  }

  static size_t shared_class_path_entry_size() {

    return sizeof(SharedClassPathEntryExt);

  }

  static void update_shared_classpath(ClassPathEntry *cpe, SharedClassPathEntry* ent, TRAPS);

  static void initialize(TRAPS);

private:

  static void read_extra_data(const char* filename, TRAPS);

public:

  static bool is_classpath_entry_signed(int classpath_index);

};

#endif // SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP