1 /* 2 * Copyright (c) 2015, 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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP 25 #define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP 26 27 #include "code/codeCache.hpp" 28 #include "gc/shared/oopStorageParState.hpp" 29 #include "gc/shenandoah/shenandoahCodeRoots.hpp" 30 #include "gc/shenandoah/shenandoahHeap.hpp" 31 #include "gc/shenandoah/shenandoahPhaseTimings.hpp" 32 #include "gc/shared/strongRootsScope.hpp" 33 #include "gc/shared/workgroup.hpp" 34 #include "memory/allocation.hpp" 35 #include "memory/iterator.hpp" 36 37 class ParallelCLDRootIterator { 38 public: 39 ParallelCLDRootIterator(); 40 void root_cld_do(CLDClosure* strong, CLDClosure* weak); 41 }; 42 43 enum Shenandoah_process_roots_tasks { 44 SHENANDOAH_RP_PS_Universe_oops_do, 45 SHENANDOAH_RP_PS_JNIHandles_oops_do, 46 SHENANDOAH_RP_PS_JNIHandles_weak_oops_do, 47 SHENANDOAH_RP_PS_ObjectSynchronizer_oops_do, 48 SHENANDOAH_RP_PS_Management_oops_do, 49 SHENANDOAH_RP_PS_SystemDictionary_oops_do, 50 SHENANDOAH_RP_PS_jvmti_oops_do, 51 // Leave this one last. 52 SHENANDOAH_RP_PS_NumElements 53 }; 54 55 class ShenandoahRootProcessor : public StackObj { 56 SubTasksDone* _process_strong_tasks; 57 StrongRootsScope _srs; 58 OopStorage::ParState<false, false> _par_state_string; 59 ShenandoahPhaseTimings::Phase _phase; 60 ParallelCLDRootIterator _cld_iterator; 61 ShenandoahAllCodeRootsIterator _coderoots_all_iterator; 62 CodeBlobClosure* _threads_nmethods_cl; 63 64 void process_java_roots(OopClosure* scan_non_heap_roots, 65 CLDClosure* scan_strong_clds, 66 CLDClosure* scan_weak_clds, 67 CodeBlobClosure* scan_strong_code, 68 ThreadClosure* thread_cl, 69 uint worker_i); 70 71 void process_vm_roots(OopClosure* scan_non_heap_roots, 72 OopClosure* scan_non_heap_weak_roots, 73 OopClosure* weak_jni_roots, 74 uint worker_i); 75 76 public: 77 ShenandoahRootProcessor(ShenandoahHeap* heap, uint n_workers, 78 ShenandoahPhaseTimings::Phase phase); 79 ~ShenandoahRootProcessor(); 80 81 // Apply oops, clds and blobs to all strongly reachable roots in the system 82 void process_strong_roots(OopClosure* oops, OopClosure* weak_oops, | 1 /* 2 * Copyright (c) 2015, 2019, 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 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP 25 #define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP 26 27 #include "code/codeCache.hpp" 28 #include "gc/shared/oopStorageParState.hpp" 29 #include "gc/shenandoah/shenandoahCodeRoots.hpp" 30 #include "gc/shenandoah/shenandoahHeap.hpp" 31 #include "gc/shenandoah/shenandoahPhaseTimings.hpp" 32 #include "gc/shared/strongRootsScope.hpp" 33 #include "gc/shared/weakProcessor.hpp" 34 #include "gc/shared/workgroup.hpp" 35 #include "memory/allocation.hpp" 36 #include "memory/iterator.hpp" 37 38 class ParallelCLDRootIterator { 39 public: 40 ParallelCLDRootIterator(); 41 void root_cld_do(CLDClosure* strong, CLDClosure* weak); 42 }; 43 44 enum Shenandoah_process_roots_tasks { 45 SHENANDOAH_RP_PS_Universe_oops_do, 46 SHENANDOAH_RP_PS_JNIHandles_oops_do, 47 SHENANDOAH_RP_PS_ObjectSynchronizer_oops_do, 48 SHENANDOAH_RP_PS_Management_oops_do, 49 SHENANDOAH_RP_PS_SystemDictionary_oops_do, 50 SHENANDOAH_RP_PS_jvmti_oops_do, 51 // Leave this one last. 52 SHENANDOAH_RP_PS_NumElements 53 }; 54 55 class ShenandoahRootProcessor : public StackObj { 56 SubTasksDone* _process_strong_tasks; 57 StrongRootsScope _srs; 58 OopStorage::ParState<false, false> _par_state_string; 59 ShenandoahPhaseTimings::Phase _phase; 60 ParallelCLDRootIterator _cld_iterator; 61 ShenandoahAllCodeRootsIterator _coderoots_all_iterator; 62 CodeBlobClosure* _threads_nmethods_cl; 63 WeakProcessor::Task _weak_processor_task; 64 65 void process_java_roots(OopClosure* scan_non_heap_roots, 66 CLDClosure* scan_strong_clds, 67 CLDClosure* scan_weak_clds, 68 CodeBlobClosure* scan_strong_code, 69 ThreadClosure* thread_cl, 70 uint worker_i); 71 72 void process_vm_roots(OopClosure* scan_non_heap_roots, 73 OopClosure* scan_non_heap_weak_roots, 74 OopClosure* weak_jni_roots, 75 uint worker_i); 76 77 public: 78 ShenandoahRootProcessor(ShenandoahHeap* heap, uint n_workers, 79 ShenandoahPhaseTimings::Phase phase); 80 ~ShenandoahRootProcessor(); 81 82 // Apply oops, clds and blobs to all strongly reachable roots in the system 83 void process_strong_roots(OopClosure* oops, OopClosure* weak_oops, |