1 /* 2 * Copyright (c) 2014, 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 #include "precompiled.hpp" 26 #include "gc_implementation/g1/g1_specialized_oop_closures.hpp" 27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" 28 #include "gc_implementation/g1/g1OopClosures.inline.hpp" 29 #include "gc_implementation/g1/g1ParScanThreadState.hpp" 30 #include "memory/iterator.inline.hpp" 31 #include "utilities/stack.inline.hpp" 32 33 G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 34 G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL), 35 _cm(_g1->concurrent_mark()) {} 36 37 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) : 38 _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { } 39 40 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 41 _g1(g1), _par_scan_state(NULL), 42 _worker_id(UINT_MAX) { 43 set_par_scan_thread_state(par_scan_state); 44 } 45 46 void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) { 47 assert(_par_scan_state == NULL, "_par_scan_state must only be set once"); 48 assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL."); 49 50 _par_scan_state = par_scan_state; 51 _worker_id = par_scan_state->queue_num(); 52 53 assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u), 54 err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u))); 55 } 56 57 // Generate G1 specialized oop_oop_iterate functions. 58 SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN)