rev 6480 : imported patch 8035400-move-g1parscanthreadstate-into-own-files
rev 6485 : [mq]: 8040977-g1-crashes-with-G1DeferredRSUpdate-disabled

   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/g1CollectedHeap.inline.hpp"
  27 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
  28 #include "gc_implementation/g1/g1ParScanThreadState.hpp"
  29 
  30 G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1,  G1ParScanThreadState* par_scan_state) :
  31   G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
  32   _cm(_g1->concurrent_mark()) {}
  33 
  34 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :
  35   _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }
  36 
  37 G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
  38   _g1(g1), _par_scan_state(NULL),
  39   _worker_id(UINT_MAX) {
  40   set_par_scan_thread_state(par_scan_state);
  41 }
  42 
  43 void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {
  44   assert(_par_scan_state == NULL, "_par_scan_state must only be set once");
  45   assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");
  46 
  47   _par_scan_state = par_scan_state;
  48   _worker_id = par_scan_state->queue_num();
  49 
  50   assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),
  51          err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));
  52 }
--- EOF ---