1 /* 2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 #ifndef SHARE_VM_GC_EPSILON_EPSILONTHREADLOCALDATA_HPP 25 #define SHARE_VM_GC_EPSILON_EPSILONTHREADLOCALDATA_HPP 26 27 class EpsilonThreadLocalData { 28 private: 29 size_t _ergo_tlab_size; 30 int64_t _last_tlab_time; 31 32 EpsilonThreadLocalData() : 33 _ergo_tlab_size(0), 34 _last_tlab_time(0) {} 35 36 static EpsilonThreadLocalData* data(Thread* thread) { 37 assert(UseEpsilonGC, "Sanity"); 38 return thread->gc_data<EpsilonThreadLocalData>(); 39 } 40 41 public: 42 static void create(Thread* thread) { 43 new (data(thread)) EpsilonThreadLocalData(); 44 } 45 46 static void destroy(Thread* thread) { 47 data(thread)->~EpsilonThreadLocalData(); 48 } 49 50 static size_t ergo_tlab_size(Thread *thread) { 51 return data(thread)->_ergo_tlab_size; 52 } 53 54 static int64_t last_tlab_time(Thread *thread) { 55 return data(thread)->_last_tlab_time; 56 } 57 58 static void set_ergo_tlab_size(Thread *thread, size_t val) { 59 data(thread)->_ergo_tlab_size = val; 60 } 61 62 static void set_last_tlab_time(Thread *thread, int64_t time) { 63 data(thread)->_last_tlab_time = time; 64 } 65 }; 66 67 #endif // SHARE_VM_GC_EPSILON_EPSILONTHREADLOCALDATA_HPP