1 /* 2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates. 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 #include "precompiled.hpp" 25 26 #include "gc/shenandoah/shenandoahWorkGroup.hpp" 27 28 ShenandoahWorkerScope::ShenandoahWorkerScope(WorkGang* workers, uint nworkers) : 29 _workers(workers), _n_workers(nworkers) { 30 _workers->update_active_workers(nworkers); 31 } 32 33 ShenandoahWorkerScope::~ShenandoahWorkerScope() { 34 assert(_workers->active_workers() == _n_workers, 35 "Active workers can not be changed within this scope"); 36 } 37 38 ShenandoahPushWorkerScope::ShenandoahPushWorkerScope(WorkGang* workers, uint nworkers) : 39 _workers(workers), _old_workers(workers->active_workers()), _n_workers(nworkers) { 40 _workers->update_active_workers(nworkers); 41 } 42 43 ShenandoahPushWorkerScope::~ShenandoahPushWorkerScope() { 44 assert(_workers->active_workers() == _n_workers, 45 "Active workers can not be changed within this scope"); 46 // Restore old worker value 47 _workers->update_active_workers(_old_workers); 48 } 49 50 AbstractGangWorker* ShenandoahWorkGang::install_worker(uint which) { 51 AbstractGangWorker* worker = WorkGang::install_worker(which); 52 if (_initialize_gclab) { 53 worker->gclab().initialize(true); 54 } 55 56 return worker; 57 }