1 /* 2 * Copyright (c) 2015, 2017, 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 ExtendedOopClosure { 30 public: 31 void do_oop_nv(oop* p); 32 void do_oop_nv(narrowOop* p); 33 34 virtual void do_oop(oop* p); 35 virtual void do_oop(narrowOop* p); 36 37 #ifdef ASSERT 38 virtual bool should_verify_oops() { 39 return false; 40 } 41 #endif 42 }; 43 44 class ZMarkRootOopClosure : public OopClosure { 45 public: 46 virtual void do_oop(oop* p); 47 virtual void do_oop(narrowOop* p); 48 }; 49 50 class ZRelocateRootOopClosure : public OopClosure { 51 public: 52 virtual void do_oop(oop* p); 53 virtual void do_oop(narrowOop* p); 54 }; 55 56 template <bool finalizable> 57 class ZMarkBarrierOopClosure : public ExtendedOopClosure { 58 public: 59 ZMarkBarrierOopClosure(); 60 61 void do_oop_nv(oop* p); 62 void do_oop_nv(narrowOop* p); 63 64 virtual void do_oop(oop* p); 65 virtual void do_oop(narrowOop* p); 66 67 #ifdef ASSERT 68 virtual bool should_verify_oops() { 69 return false; 70 } 71 #endif 72 }; 73 74 class ZPhantomIsAliveObjectClosure : public BoolObjectClosure { 75 public: 76 virtual bool do_object_b(oop o); 77 }; 78 79 class ZPhantomKeepAliveOopClosure : public OopClosure { 80 public: 81 virtual void do_oop(oop* p); 82 virtual void do_oop(narrowOop* p); 83 }; 84 85 class ZPhantomCleanOopClosure : public OopClosure { 86 private: 87 void clean(volatile oop* p); 88 89 public: 90 virtual void do_oop(oop* p); 91 virtual void do_oop(narrowOop* p); 92 }; 93 94 class ZVerifyHeapOopClosure : public ExtendedOopClosure { 95 private: 96 const oop _base; 97 98 public: 99 ZVerifyHeapOopClosure(oop base); 100 101 virtual void do_oop(oop* p); 102 virtual void do_oop(narrowOop* p); 103 104 #ifdef ASSERT 105 // Verification handled by the closure itself. 106 virtual bool should_verify_oops() { 107 return false; 108 } 109 #endif 110 }; 111 112 class ZVerifyRootOopClosure : public OopClosure { 113 public: 114 virtual void do_oop(oop* p); 115 virtual void do_oop(narrowOop* p); 116 }; 117 118 class ZVerifyObjectClosure : public ObjectClosure { 119 public: 120 virtual void do_object(oop o); 121 }; 122 123 #endif // SHARE_GC_Z_ZOOPCLOSURES_HPP