85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
|
|
// (C) Copyright 2005-2007 Jonathan Turkanis
|
|
// (C) Copyright Jonathan Graehl 2004.
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
|
|
|
|
// See http://www.boost.org/libs/iostreams for documentation.
|
|
|
|
// Used by mapped_file.cpp.
|
|
|
|
#ifndef BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED
|
|
#define BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED
|
|
|
|
#if defined(_MSC_VER)
|
|
# pragma once
|
|
#endif
|
|
|
|
#include <cstring>
|
|
#include <string>
|
|
#include <boost/config.hpp>
|
|
#include <boost/throw_exception.hpp>
|
|
#include <boost/iostreams/detail/config/windows_posix.hpp>
|
|
#include <boost/iostreams/detail/ios.hpp> // failure.
|
|
|
|
#if defined(BOOST_NO_STDC_NAMESPACE) && !defined(__LIBCOMO__)
|
|
namespace std { using ::strlen; }
|
|
#endif
|
|
|
|
#ifdef BOOST_IOSTREAMS_WINDOWS
|
|
# define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
|
|
# include <windows.h>
|
|
#else
|
|
# include <errno.h>
|
|
# include <string.h>
|
|
#endif
|
|
|
|
namespace boost { namespace iostreams { namespace detail {
|
|
|
|
inline BOOST_IOSTREAMS_FAILURE system_failure(const char* msg)
|
|
{
|
|
std::string result;
|
|
#ifdef BOOST_IOSTREAMS_WINDOWS
|
|
DWORD err;
|
|
LPVOID lpMsgBuf;
|
|
if ( (err = ::GetLastError()) != NO_ERROR &&
|
|
::FormatMessageA( FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
|
FORMAT_MESSAGE_FROM_SYSTEM,
|
|
NULL,
|
|
err,
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
|
(LPSTR) &lpMsgBuf,
|
|
0,
|
|
NULL ) != 0 )
|
|
{
|
|
result.reserve(std::strlen(msg) + 2 + std::strlen((LPSTR)lpMsgBuf));
|
|
result.append(msg);
|
|
result.append(": ");
|
|
result.append((LPSTR) lpMsgBuf);
|
|
::LocalFree(lpMsgBuf);
|
|
} else {
|
|
result += msg;
|
|
}
|
|
#else
|
|
const char* system_msg = errno ? strerror(errno) : "";
|
|
result.reserve(std::strlen(msg) + 2 + std::strlen(system_msg));
|
|
result.append(msg);
|
|
result.append(": ");
|
|
result.append(system_msg);
|
|
#endif
|
|
return BOOST_IOSTREAMS_FAILURE(result);
|
|
}
|
|
|
|
inline BOOST_IOSTREAMS_FAILURE system_failure(const std::string& msg)
|
|
{ return system_failure(msg.c_str()); }
|
|
|
|
inline void throw_system_failure(const char* msg)
|
|
{ boost::throw_exception(system_failure(msg)); }
|
|
|
|
inline void throw_system_failure(const std::string& msg)
|
|
{ boost::throw_exception(system_failure(msg)); }
|
|
|
|
} } } // End namespaces detail, iostreams, boost.
|
|
|
|
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_SYSTEM_FAILURE_HPP_INCLUDED
|