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1 /*
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2 * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_vmPSOperations.cpp.incl"
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27
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28 // The following methods are used by the parallel scavenge collector
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29 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size,
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30 bool is_tlab, unsigned int gc_count) :
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31 VM_GC_Operation(gc_count),
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32 _size(size),
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33 _is_tlab(is_tlab),
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34 _result(NULL)
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35 {
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36 }
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37
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38 void VM_ParallelGCFailedAllocation::doit() {
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39 JvmtiGCForAllocationMarker jgcm;
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40 notify_gc_begin(false);
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41
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42 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
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43 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
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44
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45 GCCauseSetter gccs(heap, _gc_cause);
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46 _result = heap->failed_mem_allocate(_size, _is_tlab);
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47
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48 if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
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49 set_gc_locked();
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50 }
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51
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52 notify_gc_end();
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53 }
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54
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55 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size,
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56 unsigned int gc_count, unsigned int full_gc_count) :
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57 VM_GC_Operation(gc_count, full_gc_count, true /* full */),
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58 _size(size),
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59 _result(NULL)
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60 {
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61 }
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62
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63 void VM_ParallelGCFailedPermanentAllocation::doit() {
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64 JvmtiGCFullMarker jgcm;
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65 notify_gc_begin(true);
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66
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67 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
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68 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
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69
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70 GCCauseSetter gccs(heap, _gc_cause);
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71 _result = heap->failed_permanent_mem_allocate(_size);
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72 notify_gc_end();
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73 }
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74
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75 // Only used for System.gc() calls
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76 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count,
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77 unsigned int full_gc_count,
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78 GCCause::Cause gc_cause) :
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79 VM_GC_Operation(gc_count, full_gc_count, true /* full */)
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80 {
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81 _gc_cause = gc_cause;
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82 }
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83
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84 void VM_ParallelGCSystemGC::doit() {
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85 JvmtiGCFullMarker jgcm;
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86 notify_gc_begin(true);
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87
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88 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
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89 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
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90 "must be a ParallelScavengeHeap");
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91
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92 GCCauseSetter gccs(heap, _gc_cause);
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93 if (_gc_cause == GCCause::_gc_locker
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94 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
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95 // If (and only if) the scavenge fails, this will invoke a full gc.
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96 heap->invoke_scavenge();
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97 } else {
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98 heap->invoke_full_gc(false);
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99 }
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100 notify_gc_end();
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101 }
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