1 // Copyright 2014 Renato Tegon Forti, Antony Polukhin.
2 // Copyright 2015-2019 Antony Polukhin.
3 //
4 // Distributed under the Boost Software License, Version 1.0.
5 // (See accompanying file LICENSE_1_0.txt
6 // or copy at http://www.boost.org/LICENSE_1_0.txt)
7 
8 #ifndef BOOST_DLL_SYSTEM_ERROR_HPP
9 #define BOOST_DLL_SYSTEM_ERROR_HPP
10 
11 #include <boost/dll/config.hpp>
12 #include <boost/predef/os.h>
13 #include <boost/throw_exception.hpp>
14 
15 #if !BOOST_OS_WINDOWS
16 #   include <dlfcn.h>
17 #endif
18 
19 #ifdef BOOST_HAS_PRAGMA_ONCE
20 #   pragma once
21 #endif
22 
23 namespace boost { namespace dll { namespace detail {
24 
reset_dlerror()25     inline void reset_dlerror() BOOST_NOEXCEPT {
26 #if !BOOST_OS_WINDOWS
27         const char* const error_txt = dlerror();
28         (void)error_txt;
29 #endif
30     }
31 
report_error(const boost::dll::fs::error_code & ec,const char * message)32     inline void report_error(const boost::dll::fs::error_code& ec, const char* message) {
33 #if !BOOST_OS_WINDOWS
34         const char* const error_txt = dlerror();
35         if (error_txt) {
36             boost::throw_exception(
37                 boost::dll::fs::system_error(
38                     ec,
39                     message + std::string(" (dlerror system message: ") + error_txt + std::string(")")
40                 )
41             );
42         }
43 #endif
44 
45         boost::throw_exception(
46             boost::dll::fs::system_error(
47                 ec, message
48             )
49         );
50     }
51 
52 }}} // boost::dll::detail
53 
54 #endif // BOOST_DLL_SYSTEM_ERROR_HPP
55 
56