Mercurial > hg > truffle
diff src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c0492d52d55b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,101 @@ +/* + * 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(); +}