1 /*
   2  * Copyright (c) 2013, 2015, Red Hat, Inc. and/or its affiliates.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 #include "precompiled.hpp"
  25 #include "gc/shared/gcTraceTime.inline.hpp"
  26 #include "gc/shared/vmGCOperations.hpp"
  27 #include "gc/shenandoah/shenandoahConcurrentMark.inline.hpp"
  28 #include "gc/shenandoah/shenandoahPhaseTimings.hpp"
  29 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
  30 #include "gc/shenandoah/shenandoahMarkCompact.hpp"
  31 #include "gc/shenandoah/shenandoahTraversalGC.hpp"
  32 #include "gc/shenandoah/shenandoahUtils.hpp"
  33 #include "gc/shenandoah/shenandoahVerifier.hpp"
  34 #include "gc/shenandoah/shenandoahWorkGroup.hpp"
  35 #include "gc/shenandoah/shenandoahWorkerPolicy.hpp"
  36 #include "gc/shenandoah/vm_operations_shenandoah.hpp"
  37 
  38 bool VM_ShenandoahReferenceOperation::doit_prologue() {
  39   Heap_lock->lock();
  40   return true;
  41 }
  42 
  43 void VM_ShenandoahReferenceOperation::doit_epilogue() {
  44   if (Universe::has_reference_pending_list()) {
  45     Heap_lock->notify_all();
  46   }
  47   Heap_lock->unlock();
  48 }
  49 
  50 void VM_ShenandoahInitMark::doit() {
  51   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  52   ShenandoahHeap::heap()->entry_init_mark();
  53 }
  54 
  55 void VM_ShenandoahFinalMarkStartEvac::doit() {
  56   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  57   ShenandoahHeap::heap()->entry_final_mark();
  58 }
  59 
  60 void VM_ShenandoahFinalEvac::doit() {
  61   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  62   ShenandoahHeap::heap()->entry_final_evac();
  63 }
  64 
  65 void VM_ShenandoahFullGC::doit() {
  66   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::FULL);
  67   ShenandoahHeap::heap()->entry_full(_gc_cause);
  68 }
  69 
  70 void VM_ShenandoahDegeneratedGC::doit() {
  71   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  72   ShenandoahHeap::heap()->entry_degenerated(_point);
  73 }
  74 
  75 void VM_ShenandoahInitTraversalGC::doit() {
  76   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  77   ShenandoahHeap::heap()->entry_init_traversal();
  78 }
  79 
  80 void VM_ShenandoahFinalTraversalGC::doit() {
  81   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  82   ShenandoahHeap::heap()->entry_final_traversal();
  83 }
  84 
  85 void VM_ShenandoahInitUpdateRefs::doit() {
  86   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  87   ShenandoahHeap::heap()->entry_init_updaterefs();
  88 }
  89 
  90 void VM_ShenandoahFinalUpdateRefs::doit() {
  91   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::OTHER);
  92   ShenandoahHeap::heap()->entry_final_updaterefs();
  93 }