1 /*
2 * Copyright (c) 2015, Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation and/or
13 * other materials provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors
16 * may be used to endorse or promote products derived from this software without
17 * specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <DynamicLibrary.hpp>
32
33 #include "windows.h"
34
35 #include <stdexcept>
36
37 const std::string DynamicLibrary::_osLibraryPrefix = "";
38 const std::string DynamicLibrary::_osLibrarySuffix = ".dll";
39
DynamicLibrary(const std::string & path)40 DynamicLibrary::DynamicLibrary(const std::string &path) : _path(osSanitizePathName(path))
41 {
42 static_assert(sizeof(void *) == sizeof(HMODULE), "Incompatible object size");
43
44 HMODULE module = LoadLibrary(_path.c_str());
45
46 _handle = reinterpret_cast<void *>(module);
47
48 if (_handle == nullptr) {
49
50 throw std::runtime_error(_path + ": cannot open shared object file.");
51 }
52 }
53
~DynamicLibrary()54 DynamicLibrary::~DynamicLibrary()
55 {
56 HMODULE module = reinterpret_cast<HMODULE>(_handle);
57
58 FreeLibrary(module);
59 }
60
osGetSymbol(const std::string & symbol) const61 void *DynamicLibrary::osGetSymbol(const std::string &symbol) const
62 {
63 HMODULE module = reinterpret_cast<HMODULE>(_handle);
64
65 void *sym = reinterpret_cast<void *>(GetProcAddress(module, symbol.c_str()));
66
67 if (sym == nullptr) {
68
69 throw std::runtime_error(_path + ": undefined symbol: " + symbol);
70 }
71
72 return sym;
73 }
74