/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "gc_implementation/g1/g1CollectedHeap.inline.hpp"

#include "gc_implementation/g1/g1OopClosures.inline.hpp"

#include "gc_implementation/g1/g1ParScanThreadState.hpp"

G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1,  G1ParScanThreadState* par_scan_state) :

  G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),

  _cm(_g1->concurrent_mark()) {}

G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :

  _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }

G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :

  _g1(g1), _par_scan_state(NULL),

  _worker_id(UINT_MAX) {

  set_par_scan_thread_state(par_scan_state);

}

void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {

  assert(_par_scan_state == NULL, "_par_scan_state must only be set once");

  assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");

  _par_scan_state = par_scan_state;

  _worker_id = par_scan_state->queue_num();

  assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),

         err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));

}