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src/hotspot/share/gc/shenandoah/shenandoahVMOperations.cpp

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 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/shenandoahConcurrentGC.hpp"
 28 #include "gc/shenandoah/shenandoahDegeneratedGC.hpp"
 29 #include "gc/shenandoah/shenandoahFullGC.hpp"

 30 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 31 #include "gc/shenandoah/shenandoahMark.inline.hpp"
 32 #include "gc/shenandoah/shenandoahOopClosures.inline.hpp"
 33 #include "gc/shenandoah/shenandoahUtils.hpp"
 34 #include "gc/shenandoah/shenandoahVMOperations.hpp"
 35 #include "interpreter/oopMapCache.hpp"
 36 #include "memory/universe.hpp"
 37 
 38 bool VM_ShenandoahOperation::doit_prologue() {
 39   assert(!ShenandoahHeap::heap()->has_gc_state_changed(), "GC State can only be changed on a safepoint.");
 40   return true;
 41 }
 42 
 43 void VM_ShenandoahOperation::doit_epilogue() {
 44   assert(!ShenandoahHeap::heap()->has_gc_state_changed(), "GC State was not synchronized to java threads.");
 45 }
 46 
 47 bool VM_ShenandoahReferenceOperation::doit_prologue() {
 48   VM_ShenandoahOperation::doit_prologue();
 49   Heap_lock->lock();

 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/shenandoahConcurrentGC.hpp"
 28 #include "gc/shenandoah/shenandoahDegeneratedGC.hpp"
 29 #include "gc/shenandoah/shenandoahFullGC.hpp"
 30 #include "gc/shenandoah/shenandoahGeneration.hpp"
 31 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 32 #include "gc/shenandoah/shenandoahMark.inline.hpp"
 33 #include "gc/shenandoah/shenandoahOopClosures.inline.hpp"
 34 #include "gc/shenandoah/shenandoahUtils.hpp"
 35 #include "gc/shenandoah/shenandoahVMOperations.hpp"
 36 #include "interpreter/oopMapCache.hpp"
 37 #include "memory/universe.hpp"
 38 
 39 bool VM_ShenandoahOperation::doit_prologue() {
 40   assert(!ShenandoahHeap::heap()->has_gc_state_changed(), "GC State can only be changed on a safepoint.");
 41   return true;
 42 }
 43 
 44 void VM_ShenandoahOperation::doit_epilogue() {
 45   assert(!ShenandoahHeap::heap()->has_gc_state_changed(), "GC State was not synchronized to java threads.");
 46 }
 47 
 48 bool VM_ShenandoahReferenceOperation::doit_prologue() {
 49   VM_ShenandoahOperation::doit_prologue();
 50   Heap_lock->lock();
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