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src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp@850fdf70db2b (annotated)

src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp

Mon, 28 Jul 2008 15:30:23 -0700

author

jmasa

date

Mon, 28 Jul 2008 15:30:23 -0700

changeset 704

850fdf70db2b

parent 574

c0492d52d55b

child 1907

c18cbe5936b8

permissions

-rw-r--r--

Merge

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/_vmPSOperations.cpp.incl"
duke@435	27
duke@435	28	// The following methods are used by the parallel scavenge collector
duke@435	29	VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size,
duke@435	30	bool is_tlab, unsigned int gc_count) :
duke@435	31	VM_GC_Operation(gc_count),
duke@435	32	_size(size),
duke@435	33	_is_tlab(is_tlab),
duke@435	34	_result(NULL)
duke@435	35	{
duke@435	36	}
duke@435	37
duke@435	38	void VM_ParallelGCFailedAllocation::doit() {
duke@435	39	JvmtiGCForAllocationMarker jgcm;
duke@435	40	notify_gc_begin(false);
duke@435	41
duke@435	42	ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
duke@435	43	assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
duke@435	44
duke@435	45	GCCauseSetter gccs(heap, _gc_cause);
duke@435	46	_result = heap->failed_mem_allocate(_size, _is_tlab);
duke@435	47
duke@435	48	if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
duke@435	49	set_gc_locked();
duke@435	50	}
duke@435	51
duke@435	52	notify_gc_end();
duke@435	53	}
duke@435	54
duke@435	55	VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size,
duke@435	56	unsigned int gc_count, unsigned int full_gc_count) :
duke@435	57	VM_GC_Operation(gc_count, full_gc_count, true /* full */),
duke@435	58	_size(size),
duke@435	59	_result(NULL)
duke@435	60	{
duke@435	61	}
duke@435	62
duke@435	63	void VM_ParallelGCFailedPermanentAllocation::doit() {
duke@435	64	JvmtiGCFullMarker jgcm;
duke@435	65	notify_gc_begin(true);
duke@435	66
duke@435	67	ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
duke@435	68	assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
duke@435	69
duke@435	70	GCCauseSetter gccs(heap, _gc_cause);
duke@435	71	_result = heap->failed_permanent_mem_allocate(_size);
apetrusenko@574	72	if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
apetrusenko@574	73	set_gc_locked();
apetrusenko@574	74	}
duke@435	75	notify_gc_end();
duke@435	76	}
duke@435	77
duke@435	78	// Only used for System.gc() calls
duke@435	79	VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count,
duke@435	80	unsigned int full_gc_count,
duke@435	81	GCCause::Cause gc_cause) :
duke@435	82	VM_GC_Operation(gc_count, full_gc_count, true /* full */)
duke@435	83	{
duke@435	84	_gc_cause = gc_cause;
duke@435	85	}
duke@435	86
duke@435	87	void VM_ParallelGCSystemGC::doit() {
duke@435	88	JvmtiGCFullMarker jgcm;
duke@435	89	notify_gc_begin(true);
duke@435	90
duke@435	91	ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
duke@435	92	assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
duke@435	93	"must be a ParallelScavengeHeap");
duke@435	94
duke@435	95	GCCauseSetter gccs(heap, _gc_cause);
duke@435	96	if (_gc_cause == GCCause::_gc_locker
duke@435	97	DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
duke@435	98	// If (and only if) the scavenge fails, this will invoke a full gc.
duke@435	99	heap->invoke_scavenge();
duke@435	100	} else {
duke@435	101	heap->invoke_full_gc(false);
duke@435	102	}
duke@435	103	notify_gc_end();
duke@435	104	}