1 /* 2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. 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 #ifndef SHARE_GC_Z_ZOOPCLOSURES_HPP 25 #define SHARE_GC_Z_ZOOPCLOSURES_HPP 26 27 #include "memory/iterator.hpp" 28 29 class ZLoadBarrierOopClosure : public BasicOopIterateClosure { 30 public: 31 virtual void do_oop(oop* p); 32 virtual void do_oop(narrowOop* p); 33 34 #ifdef ASSERT should_verify_oops()35 virtual bool should_verify_oops() { 36 return false; 37 } 38 #endif 39 }; 40 41 class ZMarkRootOopClosure : public OopClosure { 42 public: 43 virtual void do_oop(oop* p); 44 virtual void do_oop(narrowOop* p); 45 }; 46 47 class ZRelocateRootOopClosure : public OopClosure { 48 public: 49 virtual void do_oop(oop* p); 50 virtual void do_oop(narrowOop* p); 51 }; 52 53 template <bool finalizable> 54 class ZMarkBarrierOopClosure : public BasicOopIterateClosure { 55 public: 56 ZMarkBarrierOopClosure(); 57 58 virtual void do_oop(oop* p); 59 virtual void do_oop(narrowOop* p); 60 61 #ifdef ASSERT should_verify_oops()62 virtual bool should_verify_oops() { 63 return false; 64 } 65 #endif 66 }; 67 68 class ZPhantomIsAliveObjectClosure : public BoolObjectClosure { 69 public: 70 virtual bool do_object_b(oop o); 71 }; 72 73 class ZPhantomKeepAliveOopClosure : public OopClosure { 74 public: 75 virtual void do_oop(oop* p); 76 virtual void do_oop(narrowOop* p); 77 }; 78 79 class ZPhantomCleanOopClosure : public OopClosure { 80 public: 81 virtual void do_oop(oop* p); 82 virtual void do_oop(narrowOop* p); 83 }; 84 85 class ZVerifyHeapOopClosure : public BasicOopIterateClosure { 86 public: 87 virtual ReferenceIterationMode reference_iteration_mode(); 88 89 virtual void do_oop(oop* p); 90 virtual void do_oop(narrowOop* p); 91 92 #ifdef ASSERT 93 // Verification handled by the closure itself. should_verify_oops()94 virtual bool should_verify_oops() { 95 return false; 96 } 97 #endif 98 }; 99 100 class ZVerifyRootOopClosure : public OopClosure { 101 public: 102 ZVerifyRootOopClosure(); 103 104 virtual void do_oop(oop* p); 105 virtual void do_oop(narrowOop* p); 106 }; 107 108 class ZVerifyObjectClosure : public ObjectClosure { 109 public: 110 virtual void do_object(oop o); 111 }; 112 113 #endif // SHARE_GC_Z_ZOOPCLOSURES_HPP 114