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_ZCPU_HPP 25 #define SHARE_GC_Z_ZCPU_HPP 26 27 #include "memory/allocation.hpp" 28 #include "memory/padded.hpp" 29 30 class Thread; 31 32 class ZCPU : public AllStatic { 33 private: 34 struct ZCPUAffinity { 35 Thread* _thread; 36 }; 37 38 static PaddedEnd<ZCPUAffinity>* _affinity; 39 static __thread Thread* _self; 40 static __thread uint32_t _cpu; 41 42 public: 43 static void initialize(); 44 45 static uint32_t count(); 46 static uint32_t id(); 47 }; 48 49 #endif // SHARE_GC_Z_ZCPU_HPP