1 /*
   2  * Copyright (c) 2013, 2018, Red Hat, Inc. All rights reserved.
   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 
  26 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
  27 #include "gc/shenandoah/shenandoahUtils.hpp"
  28 #include "gc/shenandoah/shenandoahVMOperations.hpp"
  29 #include "memory/universe.hpp"
  30 
  31 bool VM_ShenandoahReferenceOperation::doit_prologue() {
  32   Heap_lock->lock();
  33   return true;
  34 }
  35 
  36 void VM_ShenandoahReferenceOperation::doit_epilogue() {
  37   if (Universe::has_reference_pending_list()) {
  38     Heap_lock->notify_all();
  39   }
  40   Heap_lock->unlock();
  41 }
  42 
  43 void VM_ShenandoahInitMark::doit() {
  44   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  45   ShenandoahHeap::heap()->entry_init_mark();
  46 }
  47 
  48 void VM_ShenandoahFinalMarkStartEvac::doit() {
  49   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  50   ShenandoahHeap::heap()->entry_final_mark();
  51 }
  52 
  53 void VM_ShenandoahFinalEvac::doit() {
  54   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  55   ShenandoahHeap::heap()->entry_final_evac();
  56 }
  57 
  58 void VM_ShenandoahFullGC::doit() {
  59   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::FULL);
  60   ShenandoahHeap::heap()->entry_full(_gc_cause);
  61 }
  62 
  63 void VM_ShenandoahDegeneratedGC::doit() {
  64   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  65   ShenandoahHeap::heap()->entry_degenerated(_point);
  66 }
  67 
  68 void VM_ShenandoahInitTraversalGC::doit() {
  69   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  70   ShenandoahHeap::heap()->entry_init_traversal();
  71 }
  72 
  73 void VM_ShenandoahFinalTraversalGC::doit() {
  74   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  75   ShenandoahHeap::heap()->entry_final_traversal();
  76 }
  77 
  78 void VM_ShenandoahInitUpdateRefs::doit() {
  79   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  80   ShenandoahHeap::heap()->entry_init_updaterefs();
  81 }
  82 
  83 void VM_ShenandoahFinalUpdateRefs::doit() {
  84   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  85   ShenandoahHeap::heap()->entry_final_updaterefs();
  86 }