Mercurial > hg > graal-compiler
view src/share/vm/oops/cpCacheKlass.hpp @ 616:4f360ec815ba
6720309: G1: don't synchronously update RSet during evacuation pauses
6720334: G1: don't update RSets of collection set regions during an evacuation pause
Summary: Introduced a deferred update mechanism for delaying the rset updates during the collection pause
Reviewed-by: apetrusenko, tonyp
author | iveresov |
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date | Fri, 06 Mar 2009 13:50:14 -0800 |
parents | 9a25e0c45327 |
children | 0fbdb4381b99 |
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/* * Copyright 1998-2008 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 constantPoolCacheKlass: public Klass { juint _alloc_size; // allocation profiling support public: // Dispatched klass operations bool oop_is_constantPoolCache() const { return true; } int oop_size(oop obj) const; int klass_oop_size() const { return object_size(); } // Allocation DEFINE_ALLOCATE_PERMANENT(constantPoolCacheKlass); constantPoolCacheOop allocate(int length, bool is_conc_safe, TRAPS); static klassOop create_klass(TRAPS); // Casting from klassOop static constantPoolCacheKlass* cast(klassOop k) { assert(k->klass_part()->oop_is_constantPoolCache(), "cast to constantPoolCacheKlass"); return (constantPoolCacheKlass*)k->klass_part(); } // Sizing static int header_size() { return oopDesc::header_size() + sizeof(constantPoolCacheKlass)/HeapWordSize; } int object_size() const { return align_object_size(header_size()); } // Garbage collection void oop_follow_contents(oop obj); int oop_adjust_pointers(oop obj); virtual bool oop_is_conc_safe(oop obj) const; // Parallel Scavenge and Parallel Old PARALLEL_GC_DECLS // Iterators int oop_oop_iterate(oop obj, OopClosure* blk); int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); // Allocation profiling support juint alloc_size() const { return _alloc_size; } void set_alloc_size(juint n) { _alloc_size = n; } #ifndef PRODUCT public: // Printing void oop_print_on(oop obj, outputStream* st); #endif public: // Verification const char* internal_name() const; void oop_verify_on(oop obj, outputStream* st); };