Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp @ 342:37f87013dfd8
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
author | ysr |
---|---|
date | Thu, 05 Jun 2008 15:57:56 -0700 |
parents | |
children | df6caf649ff7 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp Thu Jun 05 15:57:56 2008 -0700 @@ -0,0 +1,112 @@ +/* + * Copyright 2001-2007 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. + * + */ + +/* + * This really ought to be an inline function, but apparently the C++ + * compiler sometimes sees fit to ignore inline declarations. Sigh. + */ + +// This must a ifdef'ed because the counting it controls is in a +// perf-critical inner loop. +#define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0 + +inline void FilterIntoCSClosure::do_oop_nv(oop* p) { + oop obj = *p; + if (obj != NULL && _g1->obj_in_cs(obj)) { + _oc->do_oop(p); +#if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT + _dcto_cl->incr_count(); +#endif + } +} + +inline void FilterIntoCSClosure::do_oop(oop* p) +{ + do_oop_nv(p); +} + +#define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0 + +inline void FilterOutOfRegionClosure::do_oop_nv(oop* p) { + oop obj = *p; + HeapWord* obj_hw = (HeapWord*)obj; + if (obj_hw != NULL && (obj_hw < _r_bottom || obj_hw >= _r_end)) { + _oc->do_oop(p); +#if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT + _out_of_region++; +#endif + } +} + +inline void FilterOutOfRegionClosure::do_oop(oop* p) +{ + do_oop_nv(p); +} + +inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) { + oop obj = *p; + if (obj != NULL && _g1->obj_in_cs(obj)) + _oc->do_oop(p); +} + +inline void FilterInHeapRegionAndIntoCSClosure::do_oop(oop* p) +{ + do_oop_nv(p); +} + + +inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) { + oop obj = *p; + if (obj != NULL) { + HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj); + if (hr != NULL) { + if (hr->in_collection_set()) + _oc->do_oop(p); + else if (!hr->is_young()) + _cm->grayRoot(obj); + } + } +} + +inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop(oop* p) +{ + do_oop_nv(p); +} + +inline void G1ScanAndBalanceClosure::do_oop_nv(oop* p) { + RefToScanQueue* q; + if (ParallelGCThreads > 0) { + // Deal the work out equally. + _nq = (_nq + 1) % ParallelGCThreads; + q = _g1->task_queue(_nq); + } else { + q = _g1->task_queue(0); + } + bool nooverflow = q->push(p); + guarantee(nooverflow, "Overflow during poplularity region processing"); +} + +inline void G1ScanAndBalanceClosure::do_oop(oop* p) { + do_oop_nv(p); +}