1 /*

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

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP

    26 #define SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP

    27 

    28 #include "classfile/sharedPathsMiscInfo.hpp"

    29 #include "memory/filemap.hpp"

    30 

    31 class SharedClassUtil : AllStatic {

    32 public:

    33 

    34   static SharedPathsMiscInfo* allocate_shared_paths_misc_info() {

    35     return new SharedPathsMiscInfo();

    36   }

    37 

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

    39     return new SharedPathsMiscInfo(buf, size);

    40   }

    41 

    42   static FileMapInfo::FileMapHeader* allocate_file_map_header() {

    43     return new FileMapInfo::FileMapHeader();

    44   }

    45 

    46   static size_t file_map_header_size() {

    47     return sizeof(FileMapInfo::FileMapHeader);

    48   }

    49 

    50   static size_t shared_class_path_entry_size() {

    51     return sizeof(SharedClassPathEntry);

    52   }

    53 

    54   static void update_shared_classpath(ClassPathEntry *cpe,

    55                                       SharedClassPathEntry* ent,

    56                                       time_t timestamp,

    57                                       long filesize, TRAPS) {

    58     ent->_timestamp = timestamp;

    59     ent->_filesize  = filesize;

    60   }

    61 

    62   static void initialize(TRAPS) {}

    63 

    64   inline static bool is_shared_boot_class(Klass* klass) {

    65     return (klass->_shared_class_path_index >= 0);

    66   }

    67 };

    68 

    69 #endif // SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP