src/hotspot/share/jfr/leakprofiler/chains/bitset.cpp
author eosterlund
Thu, 05 Sep 2019 08:26:44 +0200
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permissions -rw-r--r--
8229189: Improve JFR leak profiler tracing to deal with discontiguous heaps Reviewed-by: mgronlun, egahlin
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/*
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 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "jfr/leakprofiler/chains/bitset.inline.hpp"
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BitSet::BitMapFragment::BitMapFragment(uintptr_t granule, BitMapFragment* next) :
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    _bits(_bitmap_granularity_size >> LogMinObjAlignmentInBytes, mtTracing, true /* clear */),
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    _next(next) {
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}
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BitSet::BitSet() :
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    _bitmap_fragments(32),
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    _fragment_list(NULL),
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    _last_fragment_bits(NULL),
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    _last_fragment_granule(0) {
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}
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BitSet::~BitSet() {
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  BitMapFragment* current = _fragment_list;
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  while (current != NULL) {
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    BitMapFragment* next = current->next();
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    delete current;
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    current = next;
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  }
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}