1 /*
2 * Copyright (c) 2014, 2016, 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/g1/suspendibleThreadSet.hpp"
27 #include "runtime/mutexLocker.hpp"
28 #include "runtime/semaphore.hpp"
29 #include "runtime/thread.inline.hpp"
30
31 uint SuspendibleThreadSet::_nthreads = 0;
32 uint SuspendibleThreadSet::_nthreads_stopped = 0;
33 bool SuspendibleThreadSet::_suspend_all = false;
34 double SuspendibleThreadSet::_suspend_all_start = 0.0;
35
36 static Semaphore* _synchronize_wakeup = NULL;
37
38 void SuspendibleThreadSet_init() {
39 assert(_synchronize_wakeup == NULL, "STS already initialized");
40 _synchronize_wakeup = new Semaphore();
41 }
42
43 bool SuspendibleThreadSet::is_synchronized() {
44 assert_lock_strong(STS_lock);
45 assert(_nthreads_stopped <= _nthreads, "invariant");
46 return _nthreads_stopped == _nthreads;
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1 /*
2 * Copyright (c) 2014, 2017, 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/common/suspendibleThreadSet.hpp"
27 #include "runtime/mutexLocker.hpp"
28 #include "runtime/semaphore.hpp"
29 #include "runtime/thread.inline.hpp"
30
31 uint SuspendibleThreadSet::_nthreads = 0;
32 uint SuspendibleThreadSet::_nthreads_stopped = 0;
33 bool SuspendibleThreadSet::_suspend_all = false;
34 double SuspendibleThreadSet::_suspend_all_start = 0.0;
35
36 static Semaphore* _synchronize_wakeup = NULL;
37
38 void SuspendibleThreadSet_init() {
39 assert(_synchronize_wakeup == NULL, "STS already initialized");
40 _synchronize_wakeup = new Semaphore();
41 }
42
43 bool SuspendibleThreadSet::is_synchronized() {
44 assert_lock_strong(STS_lock);
45 assert(_nthreads_stopped <= _nthreads, "invariant");
46 return _nthreads_stopped == _nthreads;
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