Mir
shared_library.h
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1 /*
2  * Copyright © 2013 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU Lesser General Public License version 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Alan Griffiths <alan@octopull.co.uk>
17  */
18 
19 #ifndef MIR_SHARED_LIBRARY_H_
20 #define MIR_SHARED_LIBRARY_H_
21 
22 #include <string>
23 
24 namespace mir
25 {
27 {
28 public:
29  explicit SharedLibrary(char const* library_name);
30  explicit SharedLibrary(std::string const& library_name);
31  ~SharedLibrary() noexcept;
32 
33  template<typename FunctionPtr>
34  FunctionPtr load_function(char const* function_name) const
35  {
36  FunctionPtr result{};
37  (void*&)result = load_symbol(function_name);
38  return result;
39  }
40 
41  template<typename FunctionPtr>
42  FunctionPtr load_function(std::string const& function_name) const
43  {
44  return load_function<FunctionPtr>(function_name.c_str());
45  }
46 
47  template<typename FunctionPtr>
48  FunctionPtr load_function(std::string const& function_name, std::string const& version) const
49  {
50  FunctionPtr result{};
51  (void*&)result = load_symbol(function_name.c_str(), version.c_str());
52  return result;
53  }
54 private:
55  void* const so;
56  void* load_symbol(char const* function_name) const;
57  void* load_symbol(char const* function_name, char const* version) const;
58  SharedLibrary(SharedLibrary const&) = delete;
59  SharedLibrary& operator=(SharedLibrary const&) = delete;
60 };
61 }
62 
63 
64 #endif /* MIR_SHARED_LIBRARY_H_ */
~SharedLibrary() noexcept
Definition: shared_library.cpp:40
All things Mir.
Definition: atomic_callback.h:25
SharedLibrary(char const *library_name)
Definition: shared_library.cpp:28
Definition: shared_library.h:26
FunctionPtr load_function(std::string const &function_name, std::string const &version) const
Definition: shared_library.h:48
FunctionPtr load_function(std::string const &function_name) const
Definition: shared_library.h:42
FunctionPtr load_function(char const *function_name) const
Definition: shared_library.h:34

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