0 /*
1 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 */
22
23 #ifndef SHARE_GC_Z_ZLOCK_HPP
24 #define SHARE_GC_Z_ZLOCK_HPP
25
26 #include "memory/allocation.hpp"
27 #include <pthread.h>
28
29 class ZLock {
30 private:
31 pthread_mutex_t _lock;
32
33 public:
34 ZLock();
35
36 void lock();
37 bool try_lock();
38 void unlock();
39 };
40
41 class ZLocker : public StackObj {
42 private:
43 ZLock* const _lock;
44
45 public:
46 ZLocker(ZLock* lock);
47 ~ZLocker();
48 };
49
50 #endif // SHARE_GC_Z_ZLOCK_HPP
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0 /*
1 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 */
22
23 #ifndef SHARE_GC_Z_ZLOCK_HPP
24 #define SHARE_GC_Z_ZLOCK_HPP
25
26 #include "memory/allocation.hpp"
27 #include <pthread.h>
28
29 class ZLock {
30 private:
31 pthread_mutex_t _lock;
32
33 public:
34 ZLock();
35
36 virtual void lock();
37 virtual bool try_lock();
38 virtual void unlock();
39 };
40
41 class ZLocker : public StackObj {
42 private:
43 ZLock* const _lock;
44
45 public:
46 ZLocker(ZLock* lock);
47 ~ZLocker();
48 };
49
50 class ZReentrantLock: public ZLock {
51 Thread* volatile _owner;
52
53 public:
54 ZReentrantLock();
55
56 virtual void lock();
57 virtual bool try_lock();
58 virtual void unlock();
59
60 bool is_owned() const;
61 bool reentrant_lock();
62 };
63
64 #endif // SHARE_GC_Z_ZLOCK_HPP
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