1 // 2 // impl/error_code.ipp 3 // ~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) 6 // 7 // Distributed under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 // 10 11 #ifndef ASIO_IMPL_ERROR_CODE_IPP 12 #define ASIO_IMPL_ERROR_CODE_IPP 13 14 15 #include "asio/detail/config.hpp" 16 # include <cerrno> 17 # include <cstring> 18 # include <string> 19 #include "asio/detail/local_free_on_block_exit.hpp" 20 #include "asio/detail/socket_types.hpp" 21 #include "asio/error_code.hpp" 22 23 #include "asio/detail/push_options.hpp" 24 25 namespace asio { 26 namespace detail { 27 28 class system_category : public error_category 29 { 30 public: 31 const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT 32 { 33 return "asio.system"; 34 } 35 36 std::string message(int value) const 37 { 38 #if !defined(__sun) 39 if (value == ECANCELED) 40 return "Operation aborted."; 41 #endif // !defined(__sun) 42 #if defined(__sun) || defined(__QNX__) || defined(__SYMBIAN32__) 43 using namespace std; 44 return strerror(value); 45 #elif defined(__MACH__) && defined(__APPLE__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(_AIX) || defined(__hpux) || defined(__osf__) || defined(__ANDROID__) 46 char buf[256] = ""; 47 using namespace std; 48 strerror_r(value, buf, sizeof(buf)); 49 return buf; 50 #else 51 char buf[256] = ""; 52 return strerror_r(value, buf, sizeof(buf)); 53 #endif 54 } 55 }; 56 57 } // namespace detail 58 59 const error_category& system_category() 60 { 61 static detail::system_category instance; 62 return instance; 63 } 64 65 } // namespace asio 66 67 #include "asio/detail/pop_options.hpp" 68 69 #endif // ASIO_IMPL_ERROR_CODE_IPP 70
