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1 /*
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2 * Copyright 2001-2007 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/_vm_operations_g1.cpp.incl"
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27
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28 void VM_G1CollectForAllocation::doit() {
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29 JvmtiGCForAllocationMarker jgcm;
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30 G1CollectedHeap* g1h = G1CollectedHeap::heap();
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31 _res = g1h->satisfy_failed_allocation(_size);
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32 assert(g1h->is_in_or_null(_res), "result not in heap");
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33 }
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34
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35 void VM_G1CollectFull::doit() {
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36 JvmtiGCFullMarker jgcm;
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37 G1CollectedHeap* g1h = G1CollectedHeap::heap();
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38 GCCauseSetter x(g1h, _gc_cause);
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39 g1h->do_full_collection(false /* clear_all_soft_refs */);
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40 }
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41
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42 void VM_G1IncCollectionPause::doit() {
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43 JvmtiGCForAllocationMarker jgcm;
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44 G1CollectedHeap* g1h = G1CollectedHeap::heap();
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45 GCCauseSetter x(g1h, GCCause::_g1_inc_collection_pause);
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46 g1h->do_collection_pause_at_safepoint(NULL);
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47 }
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48
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49 void VM_G1PopRegionCollectionPause::doit() {
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50 JvmtiGCForAllocationMarker jgcm;
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51 G1CollectedHeap* g1h = G1CollectedHeap::heap();
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52 g1h->do_collection_pause_at_safepoint(_pop_region);
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53 }
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54
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55
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56 void VM_CGC_Operation::doit() {
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57 gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
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58 TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
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59 TraceTime t(_printGCMessage, PrintGC, true, gclog_or_tty);
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60 SharedHeap* sh = SharedHeap::heap();
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61 // This could go away if CollectedHeap gave access to _gc_is_active...
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62 if (sh != NULL) {
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63 IsGCActiveMark x;
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64 _cl->do_void();
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65 } else {
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66 _cl->do_void();
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67 }
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68 }
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69
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70 bool VM_CGC_Operation::doit_prologue() {
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71 Heap_lock->lock();
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72 SharedHeap::heap()->_thread_holds_heap_lock_for_gc = true;
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73 return true;
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74 }
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75
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76 void VM_CGC_Operation::doit_epilogue() {
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77 SharedHeap::heap()->_thread_holds_heap_lock_for_gc = false;
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78 Heap_lock->unlock();
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79 }
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