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1 #ifndef _DEDYNAMICLIBRARY_H
2 #define _DEDYNAMICLIBRARY_H
3 /*-------------------------------------------------------------------------
4  * drawElements Utility 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 Dynamic link library abstraction.
24  *//*--------------------------------------------------------------------*/
25 
26 #include "deDefs.h"
27 
28 DE_BEGIN_EXTERN_C
29 
30 /* Dynamic link library. */
31 typedef struct deDynamicLibrary_s deDynamicLibrary;
32 
33 /*--------------------------------------------------------------------*//*!
34  * \brief Open dynamic library.
35  * \param fileName Name or path to dynamic library.
36  * \return Dynamic library handle, or DE_NULL on failure.
37  *
38  * This function opens and loads dynamic library to current process.
39  * If library is already loaded, its reference count will be increased.
40  *//*--------------------------------------------------------------------*/
41 deDynamicLibrary*		deDynamicLibrary_open			(const char* fileName);
42 
43 /*--------------------------------------------------------------------*//*!
44  * \brief Load function symbol from dynamic library.
45  * \param library Dynamic library
46  * \param symbolName Name of function symbol
47  * \return Function pointer or DE_NULL on failure
48  * \note Returned pointers will be invalidated if dynamic library is
49  *       unloaded.
50  *//*--------------------------------------------------------------------*/
51 deFunctionPtr			deDynamicLibrary_getFunction	(const deDynamicLibrary* library, const char* symbolName);
52 
53 /*--------------------------------------------------------------------*//*!
54  * \brief Close dynamic library.
55  * \param library Dynamic library
56  *
57  * Closing library handle decrements reference count. Library is unloaded
58  * from process if reference count reaches zero.
59  *//*--------------------------------------------------------------------*/
60 void					deDynamicLibrary_close			(deDynamicLibrary* library);
61 
62 DE_END_EXTERN_C
63 
64 #endif /* _DEDYNAMICLIBRARY_H */
65