1 /* 2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates. 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_GC_SHARED_GCARGUMENTS_HPP 26 #define SHARE_GC_SHARED_GCARGUMENTS_HPP 27 28 #include "memory/allocation.hpp" 29 30 class GCArguments : public CHeapObj<mtGC> { 31 private: 32 static GCArguments* _instance; 33 34 static void select_gc(); 35 static void select_gc_ergonomically(); 36 static bool gc_selected(); 37 38 public: 39 static jint initialize(); 40 static bool is_initialized(); 41 static GCArguments* arguments(); 42 43 virtual void initialize_flags(); 44 45 virtual size_t conservative_max_heap_alignment() = 0; 46 }; 47 48 #endif // SHARE_GC_SHARED_GCARGUMENTS_HPP