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_ADAPTIVESIZEPOLICY_INLINE_HPP 26 #define SHARE_VM_GC_SHARED_ADAPTIVESIZEPOLICY_INLINE_HPP 27 28 #include "gc/shared/adaptiveSizePolicy.hpp" 29 30 template <class WorkerType> 31 bool AdaptiveSizePolicy::add_workers(WorkerType* holder, 32 uint& active_workers, 33 uint total_workers, 34 uint& created_workers, 35 os::ThreadType worker_type, 36 bool initializing) { 37 uint start = created_workers; 38 uint end = MIN2(active_workers, total_workers); 39 for (uint worker_id = start; worker_id < end; worker_id += 1) { 40 WorkerThread* new_worker = holder->install_worker(worker_id); 41 assert(new_worker != NULL, "Failed to allocate GangWorker"); 42 if (new_worker == NULL || !os::create_thread(new_worker, worker_type)) { 43 if(initializing) { 44 vm_exit_out_of_memory(0, OOM_MALLOC_ERROR, 45 "Cannot create worker GC thread. Out of system resources."); 46 } 47 return false; 48 } 49 created_workers++; 50 51 if (!DisableStartThread || !initializing) { 52 os::start_thread(new_worker); 53 } 54 } 55 56 active_workers = MIN2(active_workers, created_workers); 57 active_workers = MAX2(1U, active_workers); 58 59 log_trace(gc, task)("AdaptiveSizePolicy::add_workers() : " 60 "active_workers: %u created_workers: %u", 61 active_workers, created_workers); 62 63 return true; 64 } 65 #endif // SHARE_VM_GC_SHARED_ADAPTIVESIZEPOLICY_INLINE_HPP