1 #ifndef _DEMUTEX_H
2 #define _DEMUTEX_H
3 /*-------------------------------------------------------------------------
4  * drawElements Thread Library
5  * ---------------------------
6  *
7  * Copyright 2014 The Android Open Source Project
8  *
9  * Licensed under the Apache License, Version 2.0 (the "License");
10  * you may not use this file except in compliance with the License.
11  * You may obtain a copy of the License at
12  *
13  *      http://www.apache.org/licenses/LICENSE-2.0
14  *
15  * Unless required by applicable law or agreed to in writing, software
16  * distributed under the License is distributed on an "AS IS" BASIS,
17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18  * See the License for the specific language governing permissions and
19  * limitations under the License.
20  *
21  *//*!
22  * \file
23  * \brief Mutex class.
24  *//*--------------------------------------------------------------------*/
25 
26 #include "deDefs.h"
27 
28 DE_BEGIN_EXTERN_C
29 
30 typedef deUintptr	deMutex;
31 
32 /*--------------------------------------------------------------------*//*!
33  * \brief Mutex attributes.
34  *//*--------------------------------------------------------------------*/
35 typedef enum deMutexFlag_e
36 {
37 	/**
38 	 * \brief Create recursive mutex.
39 	 *
40 	 * Recursive mutex can be locked multiple times from single thread
41 	 * and it is unlocked when lock count from owning thread reaches
42 	 * zero.
43 	 */
44 	DE_MUTEX_RECURSIVE		= (1 << 0)
45 } deMutexFlag;
46 
47 /*--------------------------------------------------------------------*//*!
48  * \brief Mutex attributes.
49  *//*--------------------------------------------------------------------*/
50 typedef struct deMutexAttributes_s
51 {
52 	deUint32		flags;
53 } deMutexAttributes;
54 
55 deMutex		deMutex_create		(const deMutexAttributes* attributes);
56 void		deMutex_destroy		(deMutex mutex);
57 void		deMutex_lock		(deMutex mutex);
58 deBool		deMutex_tryLock		(deMutex mutex);
59 void		deMutex_unlock		(deMutex mutex);
60 
61 DE_END_EXTERN_C
62 
63 #endif /* _DEMUTEX_H */
64