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src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp@05f89f00a864 (annotated)

src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp

Mon, 24 Aug 2009 10:36:31 -0700

author

jmasa

date

Mon, 24 Aug 2009 10:36:31 -0700

changeset 1370

05f89f00a864

parent 574

c0492d52d55b

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6798898: CMS: bugs related to class unloading
Summary: Override should_remember_klasses() and remember_klass() as needed.
Reviewed-by: ysr, jcoomes

duke@435	1	/*
duke@435	2	* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	#include "incls/_precompiled.incl"
duke@435	26	#include "incls/_cmsPermGen.cpp.incl"
duke@435	27
duke@435	28	CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
duke@435	29	CardTableRS* ct,
duke@435	30	FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
duke@435	31	CMSPermGenGen* g =
duke@435	32	new CMSPermGenGen(rs, initial_byte_size, -1, ct);
duke@435	33	if (g == NULL) {
duke@435	34	vm_exit_during_initialization("Could not allocate a CompactingPermGen");
duke@435	35	}
duke@435	36
duke@435	37	g->initialize_performance_counters();
duke@435	38
duke@435	39	_gen = g;
duke@435	40	}
duke@435	41
duke@435	42	HeapWord* CMSPermGen::mem_allocate(size_t size) {
duke@435	43	Mutex* lock = _gen->freelistLock();
duke@435	44	bool lock_owned = lock->owned_by_self();
duke@435	45	if (lock_owned) {
duke@435	46	MutexUnlocker mul(lock);
apetrusenko@574	47	return mem_allocate_in_gen(size, _gen);
duke@435	48	} else {
apetrusenko@574	49	return mem_allocate_in_gen(size, _gen);
duke@435	50	}
duke@435	51	}
duke@435	52
duke@435	53	void CMSPermGen::compute_new_size() {
duke@435	54	_gen->compute_new_size();
duke@435	55	}
duke@435	56
duke@435	57	void CMSPermGenGen::initialize_performance_counters() {
duke@435	58
duke@435	59	const char* gen_name = "perm";
duke@435	60
duke@435	61	// Generation Counters - generation 2, 1 subspace
duke@435	62	_gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space);
duke@435	63
duke@435	64	_gc_counters = NULL;
duke@435	65
duke@435	66	_space_counters = new GSpaceCounters(gen_name, 0,
duke@435	67	_virtual_space.reserved_size(),
duke@435	68	this, _gen_counters);
duke@435	69	}