92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/*
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* Copyright (c) 2017, 2018, Red Hat, Inc. 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/shenandoah/shenandoahHeap.inline.hpp"
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#include "gc/shenandoah/shenandoahThreadLocalData.hpp"
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#include "gc/shenandoah/shenandoahWorkGroup.hpp"
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#include "gc/shenandoah/shenandoahTaskqueue.hpp"
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#include "logging/log.hpp"
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ShenandoahWorkerScope::ShenandoahWorkerScope(WorkGang* workers, uint nworkers, const char* msg, bool check) :
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_workers(workers) {
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assert(msg != NULL, "Missing message");
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_n_workers = _workers->update_active_workers(nworkers);
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assert(_n_workers <= nworkers, "Must be");
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log_info(gc, task)("Using %u of %u workers for %s",
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_n_workers, ShenandoahHeap::heap()->max_workers(), msg);
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if (check) {
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ShenandoahHeap::heap()->assert_gc_workers(_n_workers);
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}
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}
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ShenandoahWorkerScope::~ShenandoahWorkerScope() {
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assert(_workers->active_workers() == _n_workers,
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"Active workers can not be changed within this scope");
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}
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ShenandoahPushWorkerScope::ShenandoahPushWorkerScope(WorkGang* workers, uint nworkers, bool check) :
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_old_workers(workers->active_workers()),
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_workers(workers) {
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_n_workers = _workers->update_active_workers(nworkers);
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assert(_n_workers <= nworkers, "Must be");
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// bypass concurrent/parallel protocol check for non-regular paths, e.g. verifier, etc.
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if (check) {
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ShenandoahHeap::heap()->assert_gc_workers(_n_workers);
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}
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}
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ShenandoahPushWorkerScope::~ShenandoahPushWorkerScope() {
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assert(_workers->active_workers() == _n_workers,
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"Active workers can not be changed within this scope");
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// Restore old worker value
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uint nworkers = _workers->update_active_workers(_old_workers);
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assert(nworkers == _old_workers, "Must be able to restore");
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}
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ShenandoahPushWorkerQueuesScope::ShenandoahPushWorkerQueuesScope(WorkGang* workers, ShenandoahObjToScanQueueSet* queues, uint nworkers, bool check) :
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ShenandoahPushWorkerScope(workers, nworkers, check), _queues(queues) {
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_queues->reserve(_n_workers);
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}
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ShenandoahPushWorkerQueuesScope::~ShenandoahPushWorkerQueuesScope() {
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// Restore old worker value
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_queues->reserve(_old_workers);
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}
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AbstractGangWorker* ShenandoahWorkGang::install_worker(uint which) {
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AbstractGangWorker* worker = WorkGang::install_worker(which);
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ShenandoahThreadLocalData::create(worker);
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if (_initialize_gclab) {
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ShenandoahThreadLocalData::initialize_gclab(worker);
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}
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return worker;
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}
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