92 lines
3.4 KiB
C++
92 lines
3.4 KiB
C++
/*
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* Copyright (c) 2011, 2024, 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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#include "precompiled.hpp"
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#include "gc/g1/g1BlockOffsetTable.inline.hpp"
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#include "gc/g1/g1CardSet.inline.hpp"
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#include "gc/g1/g1CollectedHeap.inline.hpp"
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#include "gc/g1/g1HeapRegion.inline.hpp"
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#include "gc/g1/g1HeapRegionSet.hpp"
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#include "gc/g1/g1RegionToSpaceMapper.hpp"
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#include "memory/allocation.hpp"
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#include "memory/memRegion.hpp"
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#include "memory/virtualspace.hpp"
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#include "unittest.hpp"
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// @requires UseG1GC
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TEST_OTHER_VM(G1FreeRegionList, length) {
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if (!UseG1GC) {
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return;
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}
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G1FreeRegionList l("test");
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const uint num_regions_in_test = 5;
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// Create a fake heap. It does not need to be valid, as the G1HeapRegion constructor
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// does not access it.
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MemRegion heap(nullptr, num_regions_in_test * G1HeapRegion::GrainWords);
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// Allocate a fake BOT because the G1HeapRegion constructor initializes
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// the BOT.
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size_t bot_size = G1BlockOffsetTable::compute_size(heap.word_size());
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HeapWord* bot_data = NEW_C_HEAP_ARRAY(HeapWord, bot_size, mtGC);
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ReservedSpace bot_rs(G1BlockOffsetTable::compute_size(heap.word_size()));
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G1RegionToSpaceMapper* bot_storage =
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G1RegionToSpaceMapper::create_mapper(bot_rs,
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bot_rs.size(),
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os::vm_page_size(),
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G1HeapRegion::GrainBytes,
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CardTable::card_size(),
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mtGC);
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G1BlockOffsetTable bot(heap, bot_storage);
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bot_storage->commit_regions(0, num_regions_in_test);
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// Set up memory regions for the heap regions.
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MemRegion mr0(heap.start(), G1HeapRegion::GrainWords);
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MemRegion mr1(mr0.end(), G1HeapRegion::GrainWords);
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MemRegion mr2(mr1.end(), G1HeapRegion::GrainWords);
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MemRegion mr3(mr2.end(), G1HeapRegion::GrainWords);
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MemRegion mr4(mr3.end(), G1HeapRegion::GrainWords);
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G1CardSetConfiguration config;
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G1HeapRegion hr0(0, &bot, mr0, &config);
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G1HeapRegion hr1(1, &bot, mr1, &config);
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G1HeapRegion hr2(2, &bot, mr2, &config);
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G1HeapRegion hr3(3, &bot, mr3, &config);
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G1HeapRegion hr4(4, &bot, mr4, &config);
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l.add_ordered(&hr1);
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l.add_ordered(&hr0);
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l.add_ordered(&hr3);
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l.add_ordered(&hr4);
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l.add_ordered(&hr2);
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EXPECT_EQ(l.length(), num_regions_in_test) << "Wrong free region list length";
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l.verify_list();
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bot_storage->uncommit_regions(0, num_regions_in_test);
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delete bot_storage;
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FREE_C_HEAP_ARRAY(HeapWord, bot_data);
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}
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