Mercurial > hg > graal-compiler
view src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.hpp @ 1022:4c3458a31e17
6888316: G1: has_aborted() || _cm->region_stack_empty() fails
Summary: Remove incorrect guarantee.
Reviewed-by: apetrusenko, iveresov
author | tonyp |
---|---|
date | Wed, 07 Oct 2009 09:42:18 -0400 |
parents | c0492d52d55b |
children | c18cbe5936b8 |
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/* * Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ class CardTableRS; // fwd decl class ConcurrentMarkSweepGeneration; // A PermGen implemented with a CMS space, collected by a CMS collector. class CMSPermGen: public PermGen { friend class VMStructs; protected: // The "generation" view. ConcurrentMarkSweepGeneration* _gen; public: CMSPermGen(ReservedSpace rs, size_t initial_byte_size, CardTableRS* ct, FreeBlockDictionary::DictionaryChoice); HeapWord* mem_allocate(size_t size); void compute_new_size(); Generation* as_gen() const { return _gen; } }; // This is the "generation" view of a CMSPermGen. class CMSPermGenGen: public ConcurrentMarkSweepGeneration { // Abstractly, this is a subtype that gets access to protected fields. friend class CMSPermGen; public: CMSPermGenGen(ReservedSpace rs, size_t initial_byte_size, int level, CardTableRS* ct): // See comments in the constructor for CompactibleFreeListSpace // regarding not using adaptive free lists for a perm gen. ConcurrentMarkSweepGeneration(rs, initial_byte_size, // MinPermHeapExapnsion level, ct, false /* use adaptive freelists */, (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice) {} void initialize_performance_counters(); const char* name() const { return "concurrent-mark-sweep perm gen"; } const char* short_name() const { return "CMS Perm"; } bool must_be_youngest() const { return false; } bool must_be_oldest() const { return false; } };