1 /* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is also distributed with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have included with MySQL.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23 #include "plugin/group_replication/libmysqlgcs/include/mysql/gcs/xplatform/my_xp_mutex.h"
24
25 #ifndef XCOM_STANDALONE
My_xp_mutex_server()26 My_xp_mutex_server::My_xp_mutex_server()
27 : m_mutex(static_cast<mysql_mutex_t *>(malloc(sizeof(*m_mutex)))) {}
28
~My_xp_mutex_server()29 My_xp_mutex_server::~My_xp_mutex_server() { free(m_mutex); }
30
get_native_mutex()31 mysql_mutex_t *My_xp_mutex_server::get_native_mutex() { return m_mutex; }
32
init(PSI_mutex_key key,const native_mutexattr_t * attr)33 int My_xp_mutex_server::init(PSI_mutex_key key,
34 const native_mutexattr_t *attr) {
35 if (m_mutex == nullptr) return -1;
36
37 return mysql_mutex_init(key, m_mutex, attr);
38 }
39
destroy()40 int My_xp_mutex_server::destroy() { return mysql_mutex_destroy(m_mutex); }
41
lock()42 int My_xp_mutex_server::lock() { return mysql_mutex_lock(m_mutex); }
43
trylock()44 int My_xp_mutex_server::trylock() { return mysql_mutex_trylock(m_mutex); }
45
unlock()46 int My_xp_mutex_server::unlock() { return mysql_mutex_unlock(m_mutex); }
47 #endif
48
attr_init(native_mutexattr_t * attr)49 int My_xp_mutex_util::attr_init(native_mutexattr_t *attr) {
50 /*
51 On Windows there is no initialization of mutex attributes.
52 Therefore, we simply return 0.
53 */
54 #ifdef _WIN32
55 return 0;
56 #else
57 return pthread_mutexattr_init(attr);
58 #endif
59 }
60
attr_destroy(native_mutexattr_t * attr)61 int My_xp_mutex_util::attr_destroy(native_mutexattr_t *attr) {
62 /*
63 On Windows there is no destruction of mutex attributes.
64 Therefore, we simply return 0.
65 */
66 #ifdef _WIN32
67 return 0;
68 #else
69 return pthread_mutexattr_destroy(attr);
70 #endif
71 }
72