1 /*
   2  * Copyright (c) 2013, 2019, Red Hat, Inc. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 
  27 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
  28 #include "gc/shenandoah/shenandoahUtils.hpp"
  29 #include "gc/shenandoah/shenandoahVMOperations.hpp"
  30 #include "memory/universe.hpp"
  31 
  32 bool VM_ShenandoahReferenceOperation::doit_prologue() {
  33   Heap_lock->lock();
  34   return true;
  35 }
  36 
  37 void VM_ShenandoahReferenceOperation::doit_epilogue() {
  38   if (Universe::has_reference_pending_list()) {
  39     Heap_lock->notify_all();
  40   }
  41   Heap_lock->unlock();
  42 }
  43 
  44 void VM_ShenandoahInitMark::doit() {
  45   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  46   ShenandoahHeap::heap()->entry_init_mark();
  47 }
  48 
  49 void VM_ShenandoahFinalMarkStartEvac::doit() {
  50   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  51   ShenandoahHeap::heap()->entry_final_mark();
  52 }
  53 
  54 void VM_ShenandoahFullGC::doit() {
  55   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::FULL);
  56   ShenandoahHeap::heap()->entry_full(_gc_cause);
  57 }
  58 
  59 void VM_ShenandoahDegeneratedGC::doit() {
  60   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  61   ShenandoahHeap::heap()->entry_degenerated(_point);
  62 }
  63 
  64 void VM_ShenandoahInitEvacUpdate::doit() {
  65   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  66   ShenandoahHeap::heap()->entry_init_evac_update();
  67 }
  68 
  69 void VM_ShenandoahFinalEvacUpdate::doit() {
  70   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
  71   ShenandoahHeap::heap()->entry_final_evac_update();
  72 }