projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) |
| 2 | // (C) Copyright 2005-2007 Jonathan Turkanis | |
| 3 | // (C) Copyright Jonathan Graehl 2004. | |
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) | |
| 6 | ||
| 7 | // See http://www.boost.org/libs/iostreams for documentation. | |
| 8 | ||
| 9 | // Used by mapped_file.cpp. | |
| 10 | ||
| 11 | #ifndef BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED | |
| 12 | #define BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED | |
| 13 | ||
| 14 | #if defined(_MSC_VER) | |
| 15 | # pragma once | |
| 16 | #endif | |
| 17 | ||
| 18 | #include <cstring> | |
| 19 | #include <string> | |
| 20 | #include <boost/config.hpp> | |
| 21 | #include <boost/throw_exception.hpp> | |
| 22 | #include <boost/iostreams/detail/config/windows_posix.hpp> | |
| 23 | #include <boost/iostreams/detail/ios.hpp> // failure. | |
| 24 | ||
| 25 | #if defined(BOOST_NO_STDC_NAMESPACE) && !defined(__LIBCOMO__) | |
| 26 | namespace std { using ::strlen; } | |
| 27 | #endif | |
| 28 | ||
| 29 | #ifdef BOOST_IOSTREAMS_WINDOWS | |
| 30 | # define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers | |
| 31 | # include <windows.h> | |
| 32 | #else | |
| 33 | # include <errno.h> | |
| 34 | # include <string.h> | |
| 35 | #endif | |
| 36 | ||
| 37 | namespace boost { namespace iostreams { namespace detail { | |
| 38 | ||
| 39 | inline BOOST_IOSTREAMS_FAILURE system_failure(const char* msg) | |
| 40 | { | |
| 41 | std::string result; | |
| 42 | #ifdef BOOST_IOSTREAMS_WINDOWS | |
| 43 | DWORD err; | |
| 44 | LPVOID lpMsgBuf; | |
| 45 | if ( (err = ::GetLastError()) != NO_ERROR && | |
| 46 | ::FormatMessageA( FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
| 47 | FORMAT_MESSAGE_FROM_SYSTEM, | |
| 48 | NULL, | |
| 49 | err, | |
| 50 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
| 51 | (LPSTR) &lpMsgBuf, | |
| 52 | 0, | |
| 53 | NULL ) != 0 ) | |
| 54 | { | |
| 55 | result.reserve(std::strlen(msg) + 2 + std::strlen((LPSTR)lpMsgBuf)); | |
| 56 | result.append(msg); | |
| 57 | result.append(": "); | |
| 58 | result.append((LPSTR) lpMsgBuf); | |
| 59 | ::LocalFree(lpMsgBuf); | |
| 60 | } else { | |
| 61 | result += msg; | |
| 62 | } | |
| 63 | #else | |
| 64 | const char* system_msg = errno ? strerror(errno) : ""; | |
| 65 | result.reserve(std::strlen(msg) + 2 + std::strlen(system_msg)); | |
| 66 | result.append(msg); | |
| 67 | result.append(": "); | |
| 68 | result.append(system_msg); | |
| 69 | #endif | |
| 70 | return BOOST_IOSTREAMS_FAILURE(result); | |
| 71 | } | |
| 72 | ||
| 73 | inline BOOST_IOSTREAMS_FAILURE system_failure(const std::string& msg) | |
| 74 | { return system_failure(msg.c_str()); } | |
| 75 | ||
| 76 | inline void throw_system_failure(const char* msg) | |
| 77 | { boost::throw_exception(system_failure(msg)); } | |
| 78 | ||
| 79 | inline void throw_system_failure(const std::string& msg) | |
| 80 | { boost::throw_exception(system_failure(msg)); } | |
| 81 | ||
| 82 | } } } // End namespaces detail, iostreams, boost. | |
| 83 | ||
| 84 | #endif // #ifndef BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED |