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src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.inline.hpp

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rev 55429 : 8226311: Shenandoah: Concurrent evacuation of OopStorage backed weak roots


   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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP
  25 #define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP
  26 
  27 #include "classfile/classLoaderDataGraph.hpp"


  28 #include "gc/shared/oopStorageParState.inline.hpp"
  29 #include "gc/shenandoah/shenandoahHeuristics.hpp"
  30 #include "gc/shenandoah/shenandoahRootProcessor.hpp"
  31 #include "gc/shenandoah/shenandoahTimingTracker.hpp"
  32 #include "gc/shenandoah/shenandoahUtils.hpp"

  33 #include "memory/resourceArea.hpp"
  34 
  35 template <bool CONCURRENT>


































































  36 ShenandoahJNIHandleRoots<CONCURRENT>::ShenandoahJNIHandleRoots() :
  37   _itr(JNIHandles::global_handles()) {
  38 }
  39 
  40 template <bool CONCURRENT>
  41 template <typename T>
  42 void ShenandoahJNIHandleRoots<CONCURRENT>::oops_do(T* cl, uint worker_id) {
  43   if (CONCURRENT) {
  44     _itr.oops_do(cl);
  45   } else {
  46     ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
  47     ShenandoahWorkerTimingsTracker timer(worker_times, ShenandoahPhaseTimings::JNIRoots, worker_id);
  48     _itr.oops_do(cl);
  49   }
  50 }
  51 
  52 template <typename IsAlive, typename KeepAlive>
  53 void ShenandoahWeakRoots::oops_do(IsAlive* is_alive, KeepAlive* keep_alive, uint worker_id) {
  54   _task.work<IsAlive, KeepAlive>(worker_id, is_alive, keep_alive);
  55 }
  56 
  57 template <typename ITR>
  58 ShenandoahCodeCacheRoots<ITR>::ShenandoahCodeCacheRoots() {
  59   nmethod::oops_do_marking_prologue();
  60 }
  61 
  62 template <typename ITR>
  63 void ShenandoahCodeCacheRoots<ITR>::code_blobs_do(CodeBlobClosure* blob_cl, uint worker_id) {
  64   ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
  65   ShenandoahWorkerTimingsTracker timer(worker_times, ShenandoahPhaseTimings::CodeCacheRoots, worker_id);
  66   _coderoots_iterator.possibly_parallel_blobs_do(blob_cl);
  67 }
  68 
  69 template <typename ITR>
  70 ShenandoahCodeCacheRoots<ITR>::~ShenandoahCodeCacheRoots() {
  71   nmethod::oops_do_marking_epilogue();
  72 }
  73 
  74 class ShenandoahParallelOopsDoThreadClosure : public ThreadClosure {
  75 private:
  76   OopClosure* _f;


 168   _cld_roots.clds_do(clds, NULL, worker_id);
 169   _thread_roots.threads_do(&tc_cl, worker_id);
 170 }
 171 
 172 template <typename IsAlive, typename KeepAlive>
 173 void ShenandoahRootUpdater::roots_do(uint worker_id, IsAlive* is_alive, KeepAlive* keep_alive) {
 174   CodeBlobToOopClosure update_blobs(keep_alive, CodeBlobToOopClosure::FixRelocations);
 175   CLDToOopClosure clds(keep_alive, ClassLoaderData::_claim_strong);
 176   CLDToOopClosure* weak_clds = ShenandoahHeap::heap()->unload_classes() ? NULL : &clds;
 177 
 178   _serial_roots.oops_do(keep_alive, worker_id);
 179   _jni_roots.oops_do(keep_alive, worker_id);
 180 
 181   _thread_roots.oops_do(keep_alive, NULL, worker_id);
 182   _cld_roots.clds_do(&clds, weak_clds, worker_id);
 183 
 184   if(_update_code_cache) {
 185     _code_roots.code_blobs_do(&update_blobs, worker_id);
 186   }
 187 
 188   _weak_roots.oops_do<IsAlive, KeepAlive>(is_alive, keep_alive, worker_id);

 189   _dedup_roots.oops_do(is_alive, keep_alive, worker_id);
 190 }
 191 
 192 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP


   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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP
  25 #define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP
  26 
  27 #include "classfile/classLoaderDataGraph.hpp"
  28 #include "classfile/stringTable.hpp"
  29 #include "classfile/systemDictionary.hpp"
  30 #include "gc/shared/oopStorageParState.inline.hpp"
  31 #include "gc/shenandoah/shenandoahHeuristics.hpp"
  32 #include "gc/shenandoah/shenandoahRootProcessor.hpp"
  33 #include "gc/shenandoah/shenandoahTimingTracker.hpp"
  34 #include "gc/shenandoah/shenandoahUtils.hpp"
  35 #include "prims/resolvedMethodTable.hpp"
  36 #include "memory/resourceArea.hpp"
  37 
  38 template <bool CONCURRENT>
  39 inline ShenandoahWeakRoot<CONCURRENT>::ShenandoahWeakRoot(OopStorage* storage, ShenandoahPhaseTimings::GCParPhases phase) :
  40   _itr(storage), _phase(phase) {
  41 }
  42 
  43 template <bool CONCURRENT>
  44 template <typename Closure>
  45 inline void ShenandoahWeakRoot<CONCURRENT>::oops_do(Closure* cl, uint worker_id) {
  46   if (CONCURRENT) {
  47     _itr.oops_do(cl);
  48   } else {
  49     ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
  50     ShenandoahWorkerTimingsTracker timer(worker_times, ShenandoahPhaseTimings::ThreadRoots, worker_id);
  51     _itr.oops_do(cl);
  52   }
  53 }
  54 
  55 inline ShenandoahWeakRoot<false>::ShenandoahWeakRoot(OopStorage* storage, ShenandoahPhaseTimings::GCParPhases phase) :
  56   _itr(storage), _phase(phase) {
  57 }
  58 
  59 template <typename IsAliveClosure, typename KeepAliveClosure>
  60 void ShenandoahWeakRoot<false /* concurrent */>::weak_oops_do(IsAliveClosure* is_alive, KeepAliveClosure* keep_alive, uint worker_id) {
  61   ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
  62   ShenandoahWorkerTimingsTracker timer(worker_times, _phase, worker_id);
  63   _itr.weak_oops_do(is_alive, keep_alive);
  64 }
  65 
  66 template <bool CONCURRENT>
  67 ShenandoahWeakRoots<CONCURRENT>::ShenandoahWeakRoots() :
  68   _jni_roots(JNIHandles::weak_global_handles(), ShenandoahPhaseTimings::JNIWeakRoots),
  69   _string_table_roots(StringTable::weak_storage(), ShenandoahPhaseTimings::StringTableRoots),
  70   _resolved_method_table_roots(ResolvedMethodTable::weak_storage(), ShenandoahPhaseTimings::ResolvedMethodTableRoots),
  71   _vm_roots(SystemDictionary::vm_weak_oop_storage(), ShenandoahPhaseTimings::VMWeakRoots) {
  72 }
  73 
  74 template <bool CONCURRENT>
  75 template <typename Closure>
  76 void ShenandoahWeakRoots<CONCURRENT>::oops_do(Closure* cl, uint worker_id) {
  77   _jni_roots.oops_do(cl, worker_id);
  78   _string_table_roots.oops_do(cl, worker_id);
  79   _resolved_method_table_roots.oops_do(cl, worker_id);
  80   _vm_roots.oops_do(cl, worker_id);
  81 }
  82 
  83 inline ShenandoahWeakRoots<false /* concurrent */>::ShenandoahWeakRoots() :
  84   _jni_roots(JNIHandles::weak_global_handles(), ShenandoahPhaseTimings::JNIWeakRoots),
  85   _string_table_roots(StringTable::weak_storage(), ShenandoahPhaseTimings::StringTableRoots),
  86   _resolved_method_table_roots(ResolvedMethodTable::weak_storage(), ShenandoahPhaseTimings::ResolvedMethodTableRoots),
  87   _vm_roots(SystemDictionary::vm_weak_oop_storage(), ShenandoahPhaseTimings::VMWeakRoots) {
  88 }
  89 
  90 template <typename IsAliveClosure, typename KeepAliveClosure>
  91 void ShenandoahWeakRoots<false /* concurrent*/>::weak_oops_do(IsAliveClosure* is_alive, KeepAliveClosure* keep_alive, uint worker_id) {
  92   _jni_roots.weak_oops_do(is_alive, keep_alive, worker_id);
  93   _string_table_roots.weak_oops_do(is_alive, keep_alive, worker_id);
  94   _resolved_method_table_roots.weak_oops_do(is_alive, keep_alive, worker_id);
  95   _vm_roots.weak_oops_do(is_alive, keep_alive, worker_id);
  96 }
  97 
  98 template <typename Closure>
  99 void ShenandoahWeakRoots<false /* concurrent */>::oops_do(Closure* cl, uint worker_id) {
 100   AlwaysTrueClosure always_true;
 101   weak_oops_do<AlwaysTrueClosure, Closure>(&always_true, cl, worker_id);
 102 }
 103 
 104 template <bool CONCURRENT>
 105 ShenandoahJNIHandleRoots<CONCURRENT>::ShenandoahJNIHandleRoots() :
 106   _itr(JNIHandles::global_handles()) {
 107 }
 108 
 109 template <bool CONCURRENT>
 110 template <typename T>
 111 void ShenandoahJNIHandleRoots<CONCURRENT>::oops_do(T* cl, uint worker_id) {
 112   if (CONCURRENT) {
 113     _itr.oops_do(cl);
 114   } else {
 115     ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
 116     ShenandoahWorkerTimingsTracker timer(worker_times, ShenandoahPhaseTimings::JNIRoots, worker_id);
 117     _itr.oops_do(cl);
 118   }
 119 }
 120 





 121 template <typename ITR>
 122 ShenandoahCodeCacheRoots<ITR>::ShenandoahCodeCacheRoots() {
 123   nmethod::oops_do_marking_prologue();
 124 }
 125 
 126 template <typename ITR>
 127 void ShenandoahCodeCacheRoots<ITR>::code_blobs_do(CodeBlobClosure* blob_cl, uint worker_id) {
 128   ShenandoahWorkerTimings* worker_times = ShenandoahHeap::heap()->phase_timings()->worker_times();
 129   ShenandoahWorkerTimingsTracker timer(worker_times, ShenandoahPhaseTimings::CodeCacheRoots, worker_id);
 130   _coderoots_iterator.possibly_parallel_blobs_do(blob_cl);
 131 }
 132 
 133 template <typename ITR>
 134 ShenandoahCodeCacheRoots<ITR>::~ShenandoahCodeCacheRoots() {
 135   nmethod::oops_do_marking_epilogue();
 136 }
 137 
 138 class ShenandoahParallelOopsDoThreadClosure : public ThreadClosure {
 139 private:
 140   OopClosure* _f;


 232   _cld_roots.clds_do(clds, NULL, worker_id);
 233   _thread_roots.threads_do(&tc_cl, worker_id);
 234 }
 235 
 236 template <typename IsAlive, typename KeepAlive>
 237 void ShenandoahRootUpdater::roots_do(uint worker_id, IsAlive* is_alive, KeepAlive* keep_alive) {
 238   CodeBlobToOopClosure update_blobs(keep_alive, CodeBlobToOopClosure::FixRelocations);
 239   CLDToOopClosure clds(keep_alive, ClassLoaderData::_claim_strong);
 240   CLDToOopClosure* weak_clds = ShenandoahHeap::heap()->unload_classes() ? NULL : &clds;
 241 
 242   _serial_roots.oops_do(keep_alive, worker_id);
 243   _jni_roots.oops_do(keep_alive, worker_id);
 244 
 245   _thread_roots.oops_do(keep_alive, NULL, worker_id);
 246   _cld_roots.clds_do(&clds, weak_clds, worker_id);
 247 
 248   if(_update_code_cache) {
 249     _code_roots.code_blobs_do(&update_blobs, worker_id);
 250   }
 251 
 252   _serial_weak_roots.weak_oops_do(is_alive, keep_alive, worker_id);
 253   _weak_roots.weak_oops_do(is_alive, keep_alive, worker_id);
 254   _dedup_roots.oops_do(is_alive, keep_alive, worker_id);
 255 }
 256 
 257 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_INLINE_HPP
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