duke@435: /* duke@435: * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved. duke@435: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@435: * duke@435: * This code is free software; you can redistribute it and/or modify it duke@435: * under the terms of the GNU General Public License version 2 only, as duke@435: * published by the Free Software Foundation. duke@435: * duke@435: * This code is distributed in the hope that it will be useful, but WITHOUT duke@435: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@435: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@435: * version 2 for more details (a copy is included in the LICENSE file that duke@435: * accompanied this code). duke@435: * duke@435: * You should have received a copy of the GNU General Public License version duke@435: * 2 along with this work; if not, write to the Free Software Foundation, duke@435: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@435: * duke@435: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, duke@435: * CA 95054 USA or visit www.sun.com if you need additional information or duke@435: * have any questions. duke@435: * duke@435: */ duke@435: duke@435: // Closures for ParNewGeneration duke@435: duke@435: class ParScanThreadState; duke@435: class ParNewGeneration; coleenp@548: typedef OopTaskQueueSet ObjToScanQueueSet; duke@435: class ParallelTaskTerminator; duke@435: duke@435: class ParScanClosure: public OopsInGenClosure { coleenp@548: protected: duke@435: ParScanThreadState* _par_scan_state; coleenp@548: ParNewGeneration* _g; coleenp@548: HeapWord* _boundary; coleenp@548: template void inline par_do_barrier(T* p); coleenp@548: template void inline do_oop_work(T* p, coleenp@548: bool gc_barrier, coleenp@548: bool root_scan); coleenp@548: public: duke@435: ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state); duke@435: }; duke@435: duke@435: class ParScanWithBarrierClosure: public ParScanClosure { coleenp@548: public: duke@435: ParScanWithBarrierClosure(ParNewGeneration* g, duke@435: ParScanThreadState* par_scan_state) : duke@435: ParScanClosure(g, par_scan_state) {} coleenp@548: virtual void do_oop(oop* p); coleenp@548: virtual void do_oop(narrowOop* p); coleenp@548: inline void do_oop_nv(oop* p); coleenp@548: inline void do_oop_nv(narrowOop* p); duke@435: }; duke@435: duke@435: class ParScanWithoutBarrierClosure: public ParScanClosure { coleenp@548: public: duke@435: ParScanWithoutBarrierClosure(ParNewGeneration* g, duke@435: ParScanThreadState* par_scan_state) : duke@435: ParScanClosure(g, par_scan_state) {} coleenp@548: virtual void do_oop(oop* p); coleenp@548: virtual void do_oop(narrowOop* p); coleenp@548: inline void do_oop_nv(oop* p); coleenp@548: inline void do_oop_nv(narrowOop* p); duke@435: }; duke@435: duke@435: class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure { coleenp@548: public: duke@435: ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g, duke@435: ParScanThreadState* par_scan_state) : duke@435: ParScanClosure(g, par_scan_state) {} coleenp@548: virtual void do_oop(oop* p); coleenp@548: virtual void do_oop(narrowOop* p); duke@435: }; duke@435: duke@435: class ParRootScanWithoutBarrierClosure: public ParScanClosure { coleenp@548: public: duke@435: ParRootScanWithoutBarrierClosure(ParNewGeneration* g, duke@435: ParScanThreadState* par_scan_state) : duke@435: ParScanClosure(g, par_scan_state) {} coleenp@548: virtual void do_oop(oop* p); coleenp@548: virtual void do_oop(narrowOop* p); duke@435: }; duke@435: duke@435: class ParScanWeakRefClosure: public ScanWeakRefClosure { coleenp@548: protected: duke@435: ParScanThreadState* _par_scan_state; coleenp@548: template inline void do_oop_work(T* p); coleenp@548: public: duke@435: ParScanWeakRefClosure(ParNewGeneration* g, duke@435: ParScanThreadState* par_scan_state); coleenp@548: virtual void do_oop(oop* p); coleenp@548: virtual void do_oop(narrowOop* p); coleenp@548: inline void do_oop_nv(oop* p); coleenp@548: inline void do_oop_nv(narrowOop* p); duke@435: }; duke@435: duke@435: class ParEvacuateFollowersClosure: public VoidClosure { coleenp@548: private: duke@435: ParScanThreadState* _par_scan_state; duke@435: ParScanThreadState* par_scan_state() { return _par_scan_state; } duke@435: duke@435: // We want to preserve the specific types here (rather than "OopClosure") duke@435: // for later de-virtualization of do_oop calls. duke@435: ParScanWithoutBarrierClosure* _to_space_closure; duke@435: ParScanWithoutBarrierClosure* to_space_closure() { duke@435: return _to_space_closure; duke@435: } duke@435: ParRootScanWithoutBarrierClosure* _to_space_root_closure; duke@435: ParRootScanWithoutBarrierClosure* to_space_root_closure() { duke@435: return _to_space_root_closure; duke@435: } duke@435: duke@435: ParScanWithBarrierClosure* _old_gen_closure; duke@435: ParScanWithBarrierClosure* old_gen_closure () { duke@435: return _old_gen_closure; duke@435: } duke@435: ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure; duke@435: ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () { duke@435: return _old_gen_root_closure; duke@435: } duke@435: duke@435: ParNewGeneration* _par_gen; duke@435: ParNewGeneration* par_gen() { return _par_gen; } duke@435: duke@435: ObjToScanQueueSet* _task_queues; duke@435: ObjToScanQueueSet* task_queues() { return _task_queues; } duke@435: duke@435: ParallelTaskTerminator* _terminator; duke@435: ParallelTaskTerminator* terminator() { return _terminator; } coleenp@548: public: duke@435: ParEvacuateFollowersClosure( duke@435: ParScanThreadState* par_scan_state_, duke@435: ParScanWithoutBarrierClosure* to_space_closure_, duke@435: ParScanWithBarrierClosure* old_gen_closure_, duke@435: ParRootScanWithoutBarrierClosure* to_space_root_closure_, duke@435: ParNewGeneration* par_gen_, duke@435: ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_, duke@435: ObjToScanQueueSet* task_queues_, duke@435: ParallelTaskTerminator* terminator_); coleenp@548: virtual void do_void(); duke@435: };