src/hotspot/share/gc/z/zBitMap.hpp
changeset 50525 767cdb97f103
equal deleted inserted replaced
50524:04f4e983c2f7 50525:767cdb97f103
       
     1 /*
       
     2  * Copyright (c) 2016, 2017, 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 #ifndef SHARE_GC_Z_ZBITMAP_HPP
       
    25 #define SHARE_GC_Z_ZBITMAP_HPP
       
    26 
       
    27 #include "utilities/bitMap.hpp"
       
    28 
       
    29 class ZBitMap : public CHeapBitMap {
       
    30 private:
       
    31   static bm_word_t bit_mask_pair(idx_t bit);
       
    32 
       
    33   bool par_set_bit_pair_finalizable(idx_t bit, bool& inc_live);
       
    34   bool par_set_bit_pair_strong(idx_t bit, bool& inc_live);
       
    35 
       
    36 public:
       
    37   ZBitMap(idx_t size_in_bits);
       
    38 
       
    39   bool par_set_bit_pair(idx_t bit, bool finalizable, bool& inc_live);
       
    40 };
       
    41 
       
    42 #endif // SHARE_GC_Z_ZBITMAP_HPP