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comparison src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 6cd6d394f280
children 63a4eb8bcd23
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
264 } 264 }
265 } 265 }
266 266
267 inline void CMSCollector::save_sweep_limits() { 267 inline void CMSCollector::save_sweep_limits() {
268 _cmsGen->save_sweep_limit(); 268 _cmsGen->save_sweep_limit();
269 _permGen->save_sweep_limit();
270 } 269 }
271 270
272 inline bool CMSCollector::is_dead_obj(oop obj) const { 271 inline bool CMSCollector::is_dead_obj(oop obj) const {
273 HeapWord* addr = (HeapWord*)obj; 272 HeapWord* addr = (HeapWord*)obj;
274 assert((_cmsGen->cmsSpace()->is_in_reserved(addr) 273 assert((_cmsGen->cmsSpace()->is_in_reserved(addr)
275 && _cmsGen->cmsSpace()->block_is_obj(addr)) 274 && _cmsGen->cmsSpace()->block_is_obj(addr)),
276 ||
277 (_permGen->cmsSpace()->is_in_reserved(addr)
278 && _permGen->cmsSpace()->block_is_obj(addr)),
279 "must be object"); 275 "must be object");
280 return should_unload_classes() && 276 return should_unload_classes() &&
281 _collectorState == Sweeping && 277 _collectorState == Sweeping &&
282 !_markBitMap.isMarked(addr); 278 !_markBitMap.isMarked(addr);
283 } 279 }
449 if (ConcurrentMarkSweepThread::should_yield() && 445 if (ConcurrentMarkSweepThread::should_yield() &&
450 !_collector->foregroundGCIsActive() && 446 !_collector->foregroundGCIsActive() &&
451 _yield) { 447 _yield) {
452 do_yield_work(); 448 do_yield_work();
453 } 449 }
450 }
451
452 inline void PushOrMarkClosure::do_yield_check() {
453 _parent->do_yield_check();
454 }
455
456 inline void Par_PushOrMarkClosure::do_yield_check() {
457 _parent->do_yield_check();
454 } 458 }
455 459
456 // Return value of "true" indicates that the on-going preclean 460 // Return value of "true" indicates that the on-going preclean
457 // should be aborted. 461 // should be aborted.
458 inline bool ScanMarkedObjectsAgainCarefullyClosure::do_yield_check() { 462 inline bool ScanMarkedObjectsAgainCarefullyClosure::do_yield_check() {