PX4 Firmware
PX4 Autopilot Software http://px4.io
LockGuard.hpp
Go to the documentation of this file.
1 /****************************************************************************
2  *
3  * Copyright (C) 2019 PX4 Development Team. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in
13  * the documentation and/or other materials provided with the
14  * distribution.
15  * 3. Neither the name PX4 nor the names of its contributors may be
16  * used to endorse or promote products derived from this software
17  * without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
26  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  *
32  ****************************************************************************/
33 
34 #pragma once
35 
36 #include <pthread.h>
37 
38 class LockGuard
39 {
40 public:
41  explicit LockGuard(pthread_mutex_t &mutex) :
42  _mutex(mutex)
43  {
44  pthread_mutex_lock(&_mutex);
45  }
46 
47  LockGuard(const LockGuard &other) = delete;
48  LockGuard &operator=(const LockGuard &other) = delete;
49 
51  {
52  pthread_mutex_unlock(&_mutex);
53  }
54 
55 private:
56  pthread_mutex_t &_mutex;
57 };
LockGuard & operator=(const LockGuard &other)=delete
pthread_mutex_t & _mutex
Definition: LockGuard.hpp:56
LockGuard(pthread_mutex_t &mutex)
Definition: LockGuard.hpp:41