1 /* 2 * Copyright (c) 2016, 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 25 #ifndef SHARE_VM_GC_SHARED_GC_HPP 26 #define SHARE_VM_GC_SHARED_GC_HPP 27 28 #include "memory/allocation.hpp" 29 #include "utilities/globalDefinitions.hpp" 30 31 class CollectedHeap; 32 class GCServicabilitySupport; 33 34 class GC : public CHeapObj<mtGC> { 35 private: 36 static GC* _gc; 37 38 CollectedHeap* _heap; 39 GCServicabilitySupport* _servicability; 40 41 protected: 42 virtual CollectedHeap* create_heap() = 0; 43 virtual GCServicabilitySupport* create_servicability_support() = 0; 44 45 public: 46 static jint initialize(); 47 static bool is_initialized(); 48 static GC* gc(); 49 50 jint initialize_heap(); 51 52 CollectedHeap* heap() const; 53 GCServicabilitySupport* servicability_support(); 54 55 virtual void initialize_flags(); 56 virtual size_t conservative_max_heap_alignment() = 0; 57 58 virtual void synchronize_safepoint(); 59 virtual void desynchronize_safepoint(); 60 }; 61 62 #endif // SHARE_VM_GC_SHARED_GC_HPP