/src/openh264/codec/common/inc/WelsLock.h
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1 | | /*! |
2 | | * \copy |
3 | | * Copyright (c) 2009-2015, Cisco Systems |
4 | | * All rights reserved. |
5 | | * |
6 | | * Redistribution and use in source and binary forms, with or without |
7 | | * modification, are permitted provided that the following conditions |
8 | | * are met: |
9 | | * |
10 | | * * Redistributions of source code must retain the above copyright |
11 | | * notice, this list of conditions and the following disclaimer. |
12 | | * |
13 | | * * Redistributions in binary form must reproduce the above copyright |
14 | | * notice, this list of conditions and the following disclaimer in |
15 | | * the documentation and/or other materials provided with the |
16 | | * distribution. |
17 | | * |
18 | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
19 | | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
20 | | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
21 | | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
22 | | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
24 | | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
25 | | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
26 | | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
28 | | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | | * POSSIBILITY OF SUCH DAMAGE. |
30 | | * |
31 | | * |
32 | | * \file WelsLock.h |
33 | | * |
34 | | * \brief class wrapping for locks |
35 | | * |
36 | | * \date 5/09/2012 Created |
37 | | * |
38 | | ************************************************************************************* |
39 | | */ |
40 | | |
41 | | #ifndef _WELS_LOCK_H_ |
42 | | #define _WELS_LOCK_H_ |
43 | | |
44 | | #include "macros.h" |
45 | | #include "typedefs.h" |
46 | | #include "WelsThreadLib.h" |
47 | | |
48 | | namespace WelsCommon { |
49 | | |
50 | | class CWelsLock { |
51 | | DISALLOW_COPY_AND_ASSIGN (CWelsLock); |
52 | | public: |
53 | 0 | CWelsLock() { |
54 | 0 | WelsMutexInit (&m_cMutex); |
55 | 0 | } |
56 | | |
57 | 0 | virtual ~CWelsLock() { |
58 | 0 | WelsMutexDestroy (&m_cMutex); |
59 | 0 | } |
60 | | |
61 | 0 | WELS_THREAD_ERROR_CODE Lock() { |
62 | 0 | return WelsMutexLock (&m_cMutex); |
63 | 0 | } |
64 | | |
65 | 0 | WELS_THREAD_ERROR_CODE Unlock() { |
66 | 0 | return WelsMutexUnlock (&m_cMutex); |
67 | 0 | } |
68 | | |
69 | | private: |
70 | | WELS_MUTEX m_cMutex; |
71 | | }; |
72 | | |
73 | | class CWelsAutoLock { |
74 | | DISALLOW_COPY_AND_ASSIGN (CWelsAutoLock); |
75 | | public: |
76 | 0 | CWelsAutoLock (CWelsLock& cLock) : m_cLock (cLock) { |
77 | 0 | m_cLock.Lock(); |
78 | 0 | } |
79 | | |
80 | 0 | virtual ~CWelsAutoLock() { |
81 | 0 | m_cLock.Unlock(); |
82 | 0 | } |
83 | | |
84 | | private: |
85 | | CWelsLock& m_cLock; |
86 | | }; |
87 | | |
88 | | } |
89 | | |
90 | | #endif |
91 | | |
92 | | |
93 | | |
94 | | |
95 | | |
96 | | |
97 | | |