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 <dlfcn.h>
34
35 #include <stdexcept>
36
37 const std::string DynamicLibrary::_osLibraryPrefix = "lib";
38 const std::string DynamicLibrary::_osLibrarySuffix = ".so";
39
DynamicLibrary(const std::string & path)40 DynamicLibrary::DynamicLibrary(const std::string &path) : _path(osSanitizePathName(path))
41 {
42 _handle = dlopen(_path.c_str(), RTLD_LAZY);
43
44 if (_handle == nullptr) {
45
46 const char *dlError = dlerror();
47 throw std::runtime_error((dlError != nullptr) ? dlError : "unknown dlopen error");
48 }
49 }
50
~DynamicLibrary(void)51 DynamicLibrary::~DynamicLibrary(void)
52 {
53 dlclose(_handle);
54 }
55
osGetSymbol(const std::string & symbol) const56 void *DynamicLibrary::osGetSymbol(const std::string &symbol) const
57 {
58 void *sym = dlsym(_handle, symbol.c_str());
59
60 if (sym == nullptr) {
61
62 const char *dlError = dlerror();
63 throw std::runtime_error((dlError != nullptr) ? dlError : "unknown dlsym error");
64 }
65
66 return sym;
67 }
68