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J. Duke 2007-12-01 00:00:00 +00:00
parent 686d76f772
commit 8153779ad3
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101
hotspot/src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp Normal file
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/*
* Copyright (c) 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.
*
*/
# include "incls/_precompiled.incl"
# include "incls/_vmPSOperations.cpp.incl"
// The following methods are used by the parallel scavenge collector
VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size,
bool is_tlab, unsigned int gc_count) :
VM_GC_Operation(gc_count),
_size(size),
_is_tlab(is_tlab),
_result(NULL)
{
}
void VM_ParallelGCFailedAllocation::doit() {
JvmtiGCForAllocationMarker jgcm;
notify_gc_begin(false);
ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
GCCauseSetter gccs(heap, _gc_cause);
_result = heap->failed_mem_allocate(_size, _is_tlab);
if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
set_gc_locked();
}
notify_gc_end();
}
VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size,
unsigned int gc_count, unsigned int full_gc_count) :
VM_GC_Operation(gc_count, full_gc_count, true /* full */),
_size(size),
_result(NULL)
{
}
void VM_ParallelGCFailedPermanentAllocation::doit() {
JvmtiGCFullMarker jgcm;
notify_gc_begin(true);
ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
GCCauseSetter gccs(heap, _gc_cause);
_result = heap->failed_permanent_mem_allocate(_size);
notify_gc_end();
}
// Only used for System.gc() calls
VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count,
unsigned int full_gc_count,
GCCause::Cause gc_cause) :
VM_GC_Operation(gc_count, full_gc_count, true /* full */)
{
_gc_cause = gc_cause;
}
void VM_ParallelGCSystemGC::doit() {
JvmtiGCFullMarker jgcm;
notify_gc_begin(true);
ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
"must be a ParallelScavengeHeap");
GCCauseSetter gccs(heap, _gc_cause);
if (_gc_cause == GCCause::_gc_locker
DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
// If (and only if) the scavenge fails, this will invoke a full gc.
heap->invoke_scavenge();
} else {
heap->invoke_full_gc(false);
}
notify_gc_end();
}