aec070cb69
When G1 is run with -XX:-G1DeferredRSUpdate, the VM crashes because of wrong initialization order of member variables. The change makes the initalization explicit, not relying on initialization order any more. Reviewed-by: brutisso, mgerdin
53 lines
2.2 KiB
C++
53 lines
2.2 KiB
C++
/*
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
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#include "gc_implementation/g1/g1OopClosures.inline.hpp"
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#include "gc_implementation/g1/g1ParScanThreadState.hpp"
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G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
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G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
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_cm(_g1->concurrent_mark()) {}
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G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :
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_g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }
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G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
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_g1(g1), _par_scan_state(NULL),
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_worker_id(UINT_MAX) {
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set_par_scan_thread_state(par_scan_state);
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}
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void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {
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assert(_par_scan_state == NULL, "_par_scan_state must only be set once");
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assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");
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_par_scan_state = par_scan_state;
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_worker_id = par_scan_state->queue_num();
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assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),
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err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));
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}
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