blob: ba7230f8e944aaf2f83ed92e771d7a6ba3e620b9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/mutex.h"
namespace mongo {
void Mutex::lock() {
auto hasLock = _mutex.try_lock();
if (hasLock) {
return;
}
if (auto actions = LockActions::getState().actions.load()) {
actions->onContendedLock(_name);
}
_mutex.lock();
}
void Mutex::unlock() {
if (auto actions = LockActions::getState().actions.load()) {
actions->onUnlock(_name);
}
_mutex.unlock();
}
bool Mutex::try_lock() {
return _mutex.try_lock();
}
void Mutex::LockActions::add(LockActions* actions) {
getState().actions.store(actions);
}
} // namespace mongo
|
