New upstream version 8.1.0

This commit is contained in:
geos_one
2025-08-10 01:34:16 +02:00
commit c891bb7105
4398 changed files with 838833 additions and 0 deletions

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// boost/system/api_config.hpp -------------------------------------------------------//
// Copyright Beman Dawes 2003, 2006, 2010
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// See http://www.boost.org/libs/system for documentation.
//--------------------------------------------------------------------------------------//
// Boost.System calls operating system API functions to implement system error category
// functions. Usually there is no question as to which API is to be used.
//
// In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are
// available. Chaos ensues if other code thinks one is in use when Boost.System was
// actually built with the other. This header centralizes the API choice and prevents
// user definition of API macros, thus elminating the possibility of mismatches and the
// need to test configurations with little or no practical value.
//
//--------------------------------------------------------------------------------------//
#ifndef BOOST_SYSTEM_API_CONFIG_HPP
#define BOOST_SYSTEM_API_CONFIG_HPP
# if defined(BOOST_POSIX_API) || defined(BOOST_WINDOWS_API)
# error user defined BOOST_POSIX_API or BOOST_WINDOWS_API not supported
# endif
// BOOST_POSIX_API or BOOST_WINDOWS_API specify which API to use
// Cygwin/MinGW does not predefine _WIN32.
// Standalone MinGW and all other known Windows compilers do predefine _WIN32
// Compilers that predefine _WIN32 or __MINGW32__ do so for Windows 64-bit builds too.
# if defined(_WIN32) || defined(__CYGWIN__) // Windows default, including MinGW and Cygwin
# define BOOST_WINDOWS_API
# else
# define BOOST_POSIX_API
# endif
#endif // BOOST_SYSTEM_API_CONFIG_HPP

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// boost/system/config.hpp -----------------------------------------------------------//
// Copyright Beman Dawes 2003, 2006
// 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/system for documentation.
#ifndef BOOST_SYSTEM_CONFIG_HPP
#define BOOST_SYSTEM_CONFIG_HPP
#include <boost/config.hpp>
#include <boost/predef/platform.h>
#include <boost/system/api_config.hpp> // for BOOST_POSIX_API or BOOST_WINDOWS_API
// This header implements separate compilation features as described in
// http://www.boost.org/more/separate_compilation.html
// normalize macros ------------------------------------------------------------------//
#if !defined(BOOST_SYSTEM_DYN_LINK) && !defined(BOOST_SYSTEM_STATIC_LINK) \
&& !defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_ALL_STATIC_LINK)
# define BOOST_SYSTEM_STATIC_LINK
#endif
#if defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_SYSTEM_DYN_LINK)
# define BOOST_SYSTEM_DYN_LINK
#elif defined(BOOST_ALL_STATIC_LINK) && !defined(BOOST_SYSTEM_STATIC_LINK)
# define BOOST_SYSTEM_STATIC_LINK
#endif
#if defined(BOOST_SYSTEM_DYN_LINK) && defined(BOOST_SYSTEM_STATIC_LINK)
# error Must not define both BOOST_SYSTEM_DYN_LINK and BOOST_SYSTEM_STATIC_LINK
#endif
// enable dynamic or static linking as requested --------------------------------------//
#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
# if defined(BOOST_SYSTEM_SOURCE)
# define BOOST_SYSTEM_DECL BOOST_SYMBOL_EXPORT
# else
# define BOOST_SYSTEM_DECL BOOST_SYMBOL_IMPORT
# endif
#else
# define BOOST_SYSTEM_DECL
#endif
// enable automatic library variant selection ----------------------------------------//
#if !defined(BOOST_SYSTEM_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_SYSTEM_NO_LIB)
//
// Set the name of our library, this will get undef'ed by auto_link.hpp
// once it's done with it:
//
#define BOOST_LIB_NAME boost_system
//
// If we're importing code from a dll, then tell auto_link.hpp about it:
//
#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
# define BOOST_DYN_LINK
#endif
//
// And include the header that does the work:
//
#include <boost/config/auto_link.hpp>
#endif // auto-linking disabled
#endif // BOOST_SYSTEM_CONFIG_HPP

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// error_code support implementation file ----------------------------------//
// Copyright Beman Dawes 2002, 2006
// Copyright (c) Microsoft Corporation 2014
// 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 library home page at http://www.boost.org/libs/system
//----------------------------------------------------------------------------//
#include <boost/config/warning_disable.hpp>
#include <boost/system/config.hpp>
#include <boost/system/error_code.hpp>
#include <boost/cerrno.hpp>
#include <vector>
#include <cstdlib>
#include <cassert>
#include <cstring> // for strerror/strerror_r
# if defined( BOOST_WINDOWS_API )
# include <windows.h>
# if !BOOST_PLAT_WINDOWS_RUNTIME
# include <boost/system/detail/local_free_on_destruction.hpp>
# endif
# ifndef ERROR_INCORRECT_SIZE
# define ERROR_INCORRECT_SIZE ERROR_BAD_ARGUMENTS
# endif
# endif
//----------------------------------------------------------------------------//
namespace boost
{
namespace system
{
namespace
{
// standard error categories ---------------------------------------------//
class generic_error_category : public error_category
{
public:
generic_error_category(){}
const char * name() const BOOST_SYSTEM_NOEXCEPT;
std::string message( int ev ) const;
};
class system_error_category : public error_category
{
public:
system_error_category(){}
const char * name() const BOOST_SYSTEM_NOEXCEPT;
std::string message( int ev ) const;
error_condition default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT;
};
// generic_error_category implementation ---------------------------------//
const char * generic_error_category::name() const BOOST_SYSTEM_NOEXCEPT
{
return "generic";
}
std::string generic_error_category::message( int ev ) const
{
using namespace boost::system::errc;
#if defined(__PGI)
using boost::system::errc::invalid_argument;
#endif
static std::string unknown_err( "Unknown error" );
// strerror_r is preferred because it is always thread safe,
// however, we fallback to strerror in certain cases because:
// -- Windows doesn't provide strerror_r.
// -- HP and Sun do provide strerror_r on newer systems, but there is
// no way to tell if is available at runtime and in any case their
// versions of strerror are thread safe anyhow.
// -- Linux only sometimes provides strerror_r.
// -- Tru64 provides strerror_r only when compiled -pthread.
// -- VMS doesn't provide strerror_r, but on this platform, strerror is
// thread safe.
# if defined(BOOST_WINDOWS_API) || defined(__hpux) || defined(__sun)\
|| (defined(__linux) && (!defined(__USE_XOPEN2K) || defined(BOOST_SYSTEM_USE_STRERROR)))\
|| (defined(__osf__) && !defined(_REENTRANT))\
|| (defined(__INTEGRITY))\
|| (defined(__vms))\
|| (defined(__QNXNTO__))
const char * c_str = std::strerror( ev );
return c_str
? std::string( c_str )
: unknown_err;
# else // use strerror_r
char buf[64];
char * bp = buf;
std::size_t sz = sizeof(buf);
# if defined(__CYGWIN__) || defined(__USE_GNU)
// Oddball version of strerror_r
const char * c_str = strerror_r( ev, bp, sz );
return c_str
? std::string( c_str )
: unknown_err;
# else
// POSIX version of strerror_r
int result;
for (;;)
{
// strerror_r returns 0 on success, otherwise ERANGE if buffer too small,
// invalid_argument if ev not a valid error number
# if defined (__sgi)
const char * c_str = strerror( ev );
result = 0;
return c_str
? std::string( c_str )
: unknown_err;
# else
result = strerror_r( ev, bp, sz );
# endif
if (result == 0 )
break;
else
{
# if defined(__linux)
// Linux strerror_r returns -1 on error, with error number in errno
result = errno;
# endif
if ( result != ERANGE ) break;
if ( sz > sizeof(buf) ) std::free( bp );
sz *= 2;
if ( (bp = static_cast<char*>(std::malloc( sz ))) == 0 )
return std::string( "ENOMEM" );
}
}
std::string msg;
# ifndef BOOST_NO_EXCEPTIONS
try
# endif
{
msg = ( ( result == invalid_argument ) ? "Unknown error" : bp );
}
# ifndef BOOST_NO_EXCEPTIONS
// See ticket #2098
catch(...)
{
// just eat the exception
}
# endif
if ( sz > sizeof(buf) ) std::free( bp );
sz = 0;
return msg;
# endif // else POSIX version of strerror_r
# endif // else use strerror_r
}
// system_error_category implementation --------------------------------//
const char * system_error_category::name() const BOOST_SYSTEM_NOEXCEPT
{
return "system";
}
error_condition system_error_category::default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT
{
using namespace boost::system::errc;
#if defined(__PGI)
using boost::system::errc::invalid_argument;
#endif
# if defined(BOOST_WINDOWS_API)
# if defined(WINAPI_FAMILY) && ((WINAPI_FAMILY & WINAPI_PARTITION_APP) != 0)
// When using the Windows Runtime, most system errors are reported as HRESULTs.
// We want to map the common Win32 errors to their equivalent error condition,
// whether or not they are reported via an HRESULT.
if ( ev < 0 ) // Check for failed HRESULTs only.
if ( HRESULT_FACILITY( ev ) == FACILITY_WIN32 )
ev = HRESULT_CODE( ev );
# endif
# endif
switch ( ev )
{
case 0: return make_error_condition( success );
# if defined(BOOST_POSIX_API)
// POSIX-like O/S -> posix_errno decode table ---------------------------//
case E2BIG: return make_error_condition( argument_list_too_long );
case EACCES: return make_error_condition( permission_denied );
case EADDRINUSE: return make_error_condition( address_in_use );
case EADDRNOTAVAIL: return make_error_condition( address_not_available );
case EAFNOSUPPORT: return make_error_condition( address_family_not_supported );
case EAGAIN: return make_error_condition( resource_unavailable_try_again );
# if EALREADY != EBUSY // EALREADY and EBUSY are the same on QNX Neutrino
case EALREADY: return make_error_condition( connection_already_in_progress );
# endif
case EBADF: return make_error_condition( bad_file_descriptor );
case EBADMSG: return make_error_condition( bad_message );
case EBUSY: return make_error_condition( device_or_resource_busy );
case ECANCELED: return make_error_condition( operation_canceled );
case ECHILD: return make_error_condition( no_child_process );
case ECONNABORTED: return make_error_condition( connection_aborted );
case ECONNREFUSED: return make_error_condition( connection_refused );
case ECONNRESET: return make_error_condition( connection_reset );
case EDEADLK: return make_error_condition( resource_deadlock_would_occur );
case EDESTADDRREQ: return make_error_condition( destination_address_required );
case EDOM: return make_error_condition( argument_out_of_domain );
case EEXIST: return make_error_condition( file_exists );
case EFAULT: return make_error_condition( bad_address );
case EFBIG: return make_error_condition( file_too_large );
case EHOSTUNREACH: return make_error_condition( host_unreachable );
case EIDRM: return make_error_condition( identifier_removed );
case EILSEQ: return make_error_condition( illegal_byte_sequence );
case EINPROGRESS: return make_error_condition( operation_in_progress );
case EINTR: return make_error_condition( interrupted );
case EINVAL: return make_error_condition( invalid_argument );
case EIO: return make_error_condition( io_error );
case EISCONN: return make_error_condition( already_connected );
case EISDIR: return make_error_condition( is_a_directory );
case ELOOP: return make_error_condition( too_many_symbolic_link_levels );
case EMFILE: return make_error_condition( too_many_files_open );
case EMLINK: return make_error_condition( too_many_links );
case EMSGSIZE: return make_error_condition( message_size );
case ENAMETOOLONG: return make_error_condition( filename_too_long );
case ENETDOWN: return make_error_condition( network_down );
case ENETRESET: return make_error_condition( network_reset );
case ENETUNREACH: return make_error_condition( network_unreachable );
case ENFILE: return make_error_condition( too_many_files_open_in_system );
case ENOBUFS: return make_error_condition( no_buffer_space );
case ENODATA: return make_error_condition( no_message_available );
case ENODEV: return make_error_condition( no_such_device );
case ENOENT: return make_error_condition( no_such_file_or_directory );
case ENOEXEC: return make_error_condition( executable_format_error );
case ENOLCK: return make_error_condition( no_lock_available );
case ENOLINK: return make_error_condition( no_link );
case ENOMEM: return make_error_condition( not_enough_memory );
case ENOMSG: return make_error_condition( no_message );
case ENOPROTOOPT: return make_error_condition( no_protocol_option );
case ENOSPC: return make_error_condition( no_space_on_device );
case ENOSR: return make_error_condition( no_stream_resources );
case ENOSTR: return make_error_condition( not_a_stream );
case ENOSYS: return make_error_condition( function_not_supported );
case ENOTCONN: return make_error_condition( not_connected );
case ENOTDIR: return make_error_condition( not_a_directory );
# if ENOTEMPTY != EEXIST // AIX treats ENOTEMPTY and EEXIST as the same value
case ENOTEMPTY: return make_error_condition( directory_not_empty );
# endif // ENOTEMPTY != EEXIST
# if ENOTRECOVERABLE != ECONNRESET // the same on some Broadcom chips
case ENOTRECOVERABLE: return make_error_condition( state_not_recoverable );
# endif // ENOTRECOVERABLE != ECONNRESET
case ENOTSOCK: return make_error_condition( not_a_socket );
case ENOTSUP: return make_error_condition( not_supported );
case ENOTTY: return make_error_condition( inappropriate_io_control_operation );
case ENXIO: return make_error_condition( no_such_device_or_address );
# if EOPNOTSUPP != ENOTSUP
case EOPNOTSUPP: return make_error_condition( operation_not_supported );
# endif // EOPNOTSUPP != ENOTSUP
case EOVERFLOW: return make_error_condition( value_too_large );
# if EOWNERDEAD != ECONNABORTED // the same on some Broadcom chips
case EOWNERDEAD: return make_error_condition( owner_dead );
# endif // EOWNERDEAD != ECONNABORTED
case EPERM: return make_error_condition( operation_not_permitted );
case EPIPE: return make_error_condition( broken_pipe );
case EPROTO: return make_error_condition( protocol_error );
case EPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
case EPROTOTYPE: return make_error_condition( wrong_protocol_type );
case ERANGE: return make_error_condition( result_out_of_range );
case EROFS: return make_error_condition( read_only_file_system );
case ESPIPE: return make_error_condition( invalid_seek );
case ESRCH: return make_error_condition( no_such_process );
case ETIME: return make_error_condition( stream_timeout );
case ETIMEDOUT: return make_error_condition( timed_out );
case ETXTBSY: return make_error_condition( text_file_busy );
# if EAGAIN != EWOULDBLOCK
case EWOULDBLOCK: return make_error_condition( operation_would_block );
# endif // EAGAIN != EWOULDBLOCK
case EXDEV: return make_error_condition( cross_device_link );
#else
// Windows system -> posix_errno decode table ---------------------------//
// see WinError.h comments for descriptions of errors
case ERROR_ACCESS_DENIED: return make_error_condition( permission_denied );
case ERROR_ALREADY_EXISTS: return make_error_condition( file_exists );
case ERROR_BAD_UNIT: return make_error_condition( no_such_device );
case ERROR_BUFFER_OVERFLOW: return make_error_condition( filename_too_long );
case ERROR_BUSY: return make_error_condition( device_or_resource_busy );
case ERROR_BUSY_DRIVE: return make_error_condition( device_or_resource_busy );
case ERROR_CANNOT_MAKE: return make_error_condition( permission_denied );
case ERROR_CANTOPEN: return make_error_condition( io_error );
case ERROR_CANTREAD: return make_error_condition( io_error );
case ERROR_CANTWRITE: return make_error_condition( io_error );
case ERROR_CURRENT_DIRECTORY: return make_error_condition( permission_denied );
case ERROR_DEV_NOT_EXIST: return make_error_condition( no_such_device );
case ERROR_DEVICE_IN_USE: return make_error_condition( device_or_resource_busy );
case ERROR_DIR_NOT_EMPTY: return make_error_condition( directory_not_empty );
case ERROR_DIRECTORY: return make_error_condition( invalid_argument ); // WinError.h: "The directory name is invalid"
case ERROR_DISK_FULL: return make_error_condition( no_space_on_device );
case ERROR_FILE_EXISTS: return make_error_condition( file_exists );
case ERROR_FILE_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
case ERROR_HANDLE_DISK_FULL: return make_error_condition( no_space_on_device );
case ERROR_INVALID_ACCESS: return make_error_condition( permission_denied );
case ERROR_INVALID_DRIVE: return make_error_condition( no_such_device );
case ERROR_INVALID_FUNCTION: return make_error_condition( function_not_supported );
case ERROR_INVALID_HANDLE: return make_error_condition( invalid_argument );
case ERROR_INVALID_NAME: return make_error_condition( invalid_argument );
case ERROR_LOCK_VIOLATION: return make_error_condition( no_lock_available );
case ERROR_LOCKED: return make_error_condition( no_lock_available );
case ERROR_NEGATIVE_SEEK: return make_error_condition( invalid_argument );
case ERROR_NOACCESS: return make_error_condition( permission_denied );
case ERROR_NOT_ENOUGH_MEMORY: return make_error_condition( not_enough_memory );
case ERROR_NOT_READY: return make_error_condition( resource_unavailable_try_again );
case ERROR_NOT_SAME_DEVICE: return make_error_condition( cross_device_link );
case ERROR_OPEN_FAILED: return make_error_condition( io_error );
case ERROR_OPEN_FILES: return make_error_condition( device_or_resource_busy );
case ERROR_OPERATION_ABORTED: return make_error_condition( operation_canceled );
case ERROR_OUTOFMEMORY: return make_error_condition( not_enough_memory );
case ERROR_PATH_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
case ERROR_READ_FAULT: return make_error_condition( io_error );
case ERROR_RETRY: return make_error_condition( resource_unavailable_try_again );
case ERROR_SEEK: return make_error_condition( io_error );
case ERROR_SHARING_VIOLATION: return make_error_condition( permission_denied );
case ERROR_TOO_MANY_OPEN_FILES: return make_error_condition( too_many_files_open );
case ERROR_WRITE_FAULT: return make_error_condition( io_error );
case ERROR_WRITE_PROTECT: return make_error_condition( permission_denied );
case WSAEACCES: return make_error_condition( permission_denied );
case WSAEADDRINUSE: return make_error_condition( address_in_use );
case WSAEADDRNOTAVAIL: return make_error_condition( address_not_available );
case WSAEAFNOSUPPORT: return make_error_condition( address_family_not_supported );
case WSAEALREADY: return make_error_condition( connection_already_in_progress );
case WSAEBADF: return make_error_condition( bad_file_descriptor );
case WSAECONNABORTED: return make_error_condition( connection_aborted );
case WSAECONNREFUSED: return make_error_condition( connection_refused );
case WSAECONNRESET: return make_error_condition( connection_reset );
case WSAEDESTADDRREQ: return make_error_condition( destination_address_required );
case WSAEFAULT: return make_error_condition( bad_address );
case WSAEHOSTUNREACH: return make_error_condition( host_unreachable );
case WSAEINPROGRESS: return make_error_condition( operation_in_progress );
case WSAEINTR: return make_error_condition( interrupted );
case WSAEINVAL: return make_error_condition( invalid_argument );
case WSAEISCONN: return make_error_condition( already_connected );
case WSAEMFILE: return make_error_condition( too_many_files_open );
case WSAEMSGSIZE: return make_error_condition( message_size );
case WSAENAMETOOLONG: return make_error_condition( filename_too_long );
case WSAENETDOWN: return make_error_condition( network_down );
case WSAENETRESET: return make_error_condition( network_reset );
case WSAENETUNREACH: return make_error_condition( network_unreachable );
case WSAENOBUFS: return make_error_condition( no_buffer_space );
case WSAENOPROTOOPT: return make_error_condition( no_protocol_option );
case WSAENOTCONN: return make_error_condition( not_connected );
case WSAENOTSOCK: return make_error_condition( not_a_socket );
case WSAEOPNOTSUPP: return make_error_condition( operation_not_supported );
case WSAEPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
case WSAEPROTOTYPE: return make_error_condition( wrong_protocol_type );
case WSAETIMEDOUT: return make_error_condition( timed_out );
case WSAEWOULDBLOCK: return make_error_condition( operation_would_block );
#endif
default: return error_condition( ev, system_category() );
}
}
# if !defined( BOOST_WINDOWS_API )
std::string system_error_category::message( int ev ) const
{
return generic_category().message( ev );
}
# else
std::string system_error_category::message( int ev ) const
{
#if defined(UNDER_CE) || BOOST_PLAT_WINDOWS_RUNTIME || defined(BOOST_NO_ANSI_APIS)
std::wstring buf(128, wchar_t());
for (;;)
{
DWORD retval = ::FormatMessageW(
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
ev,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
&buf[0],
buf.size(),
NULL
);
if (retval > 0)
{
buf.resize(retval);
break;
}
else if ( ::GetLastError() != ERROR_INSUFFICIENT_BUFFER )
{
return std::string("Unknown error");
}
else
{
buf.resize(buf.size() + buf.size() / 2);
}
}
int num_chars = (buf.size() + 1) * 2;
LPSTR narrow_buffer = (LPSTR)_alloca( num_chars );
if (::WideCharToMultiByte(CP_ACP, 0, buf.c_str(), -1, narrow_buffer, num_chars, NULL, NULL) == 0)
{
return std::string("Unknown error");
}
std::string str( narrow_buffer );
#else
LPVOID lpMsgBuf = 0;
DWORD retval = ::FormatMessageA(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
ev,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPSTR) &lpMsgBuf,
0,
NULL
);
detail::local_free_on_destruction lfod(lpMsgBuf);
if (retval == 0)
return std::string("Unknown error");
std::string str( static_cast<LPCSTR>(lpMsgBuf) );
# endif
while ( str.size()
&& (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
str.erase( str.size()-1 );
if ( str.size() && str[str.size()-1] == '.' )
{ str.erase( str.size()-1 ); }
return str;
}
# endif
} // unnamed namespace
# ifndef BOOST_SYSTEM_NO_DEPRECATED
BOOST_SYSTEM_DECL error_code throws; // "throw on error" special error_code;
// note that it doesn't matter if this
// isn't initialized before use since
// the only use is to take its
// address for comparison purposes
# endif
# ifdef BOOST_ERROR_CODE_HEADER_ONLY
# define BOOST_SYSTEM_LINKAGE inline
# else
# define BOOST_SYSTEM_LINKAGE BOOST_SYSTEM_DECL
# endif
BOOST_SYSTEM_LINKAGE const error_category & system_category() BOOST_SYSTEM_NOEXCEPT
{
static const system_error_category system_category_const;
return system_category_const;
}
BOOST_SYSTEM_LINKAGE const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT
{
static const generic_error_category generic_category_const;
return generic_category_const;
}
} // namespace system
} // namespace boost

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// local_free_on_exit.hpp ------------------------------------------------------------//
// Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com)
// Copyright (c) 2010 Beman Dawes
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// This is derived from boost/asio/detail/local_free_on_block_exit.hpp to avoid
// a dependency on asio. Thanks to Chris Kohlhoff for pointing it out.
#ifndef BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
#define BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
namespace boost {
namespace system {
namespace detail {
class local_free_on_destruction
{
public:
explicit local_free_on_destruction(void* p)
: p_(p) {}
~local_free_on_destruction()
{
::LocalFree(p_);
}
private:
void* p_;
local_free_on_destruction(const local_free_on_destruction&); // = deleted
local_free_on_destruction& operator=(const local_free_on_destruction&); // = deleted
};
} // namespace detail
} // namespace system
} // namespace boost
#endif // BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP

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// boost/system/error_code.hpp ---------------------------------------------//
// Copyright Beman Dawes 2006, 2007
// Copyright Christoper Kohlhoff 2007
// 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 library home page at http://www.boost.org/libs/system
#ifndef BOOST_ERROR_CODE_HPP
#define BOOST_ERROR_CODE_HPP
#include <boost/system/config.hpp>
#include <boost/cstdint.hpp>
#include <boost/assert.hpp>
#include <boost/noncopyable.hpp>
#include <boost/utility/enable_if.hpp>
#include <ostream>
#include <string>
#include <stdexcept>
#include <functional>
// TODO: undef these macros if not already defined
#include <boost/cerrno.hpp>
#if !defined(BOOST_POSIX_API) && !defined(BOOST_WINDOWS_API)
# error BOOST_POSIX_API or BOOST_WINDOWS_API must be defined
#endif
#include <boost/config/abi_prefix.hpp> // must be the last #include
#ifndef BOOST_SYSTEM_NOEXCEPT
#define BOOST_SYSTEM_NOEXCEPT BOOST_NOEXCEPT
#endif
namespace boost
{
namespace system
{
class error_code;
class error_condition;
// "Concept" helpers ---------------------------------------------------//
template< class T >
struct is_error_code_enum { static const bool value = false; };
template< class T >
struct is_error_condition_enum { static const bool value = false; };
// generic error_conditions --------------------------------------------//
namespace errc
{
enum errc_t
{
success = 0,
address_family_not_supported = EAFNOSUPPORT,
address_in_use = EADDRINUSE,
address_not_available = EADDRNOTAVAIL,
already_connected = EISCONN,
argument_list_too_long = E2BIG,
argument_out_of_domain = EDOM,
bad_address = EFAULT,
bad_file_descriptor = EBADF,
bad_message = EBADMSG,
broken_pipe = EPIPE,
connection_aborted = ECONNABORTED,
connection_already_in_progress = EALREADY,
connection_refused = ECONNREFUSED,
connection_reset = ECONNRESET,
cross_device_link = EXDEV,
destination_address_required = EDESTADDRREQ,
device_or_resource_busy = EBUSY,
directory_not_empty = ENOTEMPTY,
executable_format_error = ENOEXEC,
file_exists = EEXIST,
file_too_large = EFBIG,
filename_too_long = ENAMETOOLONG,
function_not_supported = ENOSYS,
host_unreachable = EHOSTUNREACH,
identifier_removed = EIDRM,
illegal_byte_sequence = EILSEQ,
inappropriate_io_control_operation = ENOTTY,
interrupted = EINTR,
invalid_argument = EINVAL,
invalid_seek = ESPIPE,
io_error = EIO,
is_a_directory = EISDIR,
message_size = EMSGSIZE,
network_down = ENETDOWN,
network_reset = ENETRESET,
network_unreachable = ENETUNREACH,
no_buffer_space = ENOBUFS,
no_child_process = ECHILD,
no_link = ENOLINK,
no_lock_available = ENOLCK,
no_message_available = ENODATA,
no_message = ENOMSG,
no_protocol_option = ENOPROTOOPT,
no_space_on_device = ENOSPC,
no_stream_resources = ENOSR,
no_such_device_or_address = ENXIO,
no_such_device = ENODEV,
no_such_file_or_directory = ENOENT,
no_such_process = ESRCH,
not_a_directory = ENOTDIR,
not_a_socket = ENOTSOCK,
not_a_stream = ENOSTR,
not_connected = ENOTCONN,
not_enough_memory = ENOMEM,
not_supported = ENOTSUP,
operation_canceled = ECANCELED,
operation_in_progress = EINPROGRESS,
operation_not_permitted = EPERM,
operation_not_supported = EOPNOTSUPP,
operation_would_block = EWOULDBLOCK,
owner_dead = EOWNERDEAD,
permission_denied = EACCES,
protocol_error = EPROTO,
protocol_not_supported = EPROTONOSUPPORT,
read_only_file_system = EROFS,
resource_deadlock_would_occur = EDEADLK,
resource_unavailable_try_again = EAGAIN,
result_out_of_range = ERANGE,
state_not_recoverable = ENOTRECOVERABLE,
stream_timeout = ETIME,
text_file_busy = ETXTBSY,
timed_out = ETIMEDOUT,
too_many_files_open_in_system = ENFILE,
too_many_files_open = EMFILE,
too_many_links = EMLINK,
too_many_symbolic_link_levels = ELOOP,
value_too_large = EOVERFLOW,
wrong_protocol_type = EPROTOTYPE
};
} // namespace errc
# ifndef BOOST_SYSTEM_NO_DEPRECATED
namespace posix = errc;
namespace posix_error = errc;
# endif
template<> struct is_error_condition_enum<errc::errc_t>
{ static const bool value = true; };
// ----------------------------------------------------------------------//
// Operating system specific interfaces --------------------------------//
// The interface is divided into general and system-specific portions to
// meet these requirements:
//
// * Code calling an operating system API can create an error_code with
// a single category (system_category), even for POSIX-like operating
// systems that return some POSIX errno values and some native errno
// values. This code should not have to pay the cost of distinguishing
// between categories, since it is not yet known if that is needed.
//
// * Users wishing to write system-specific code should be given enums for
// at least the common error cases.
//
// * System specific code should fail at compile time if moved to another
// operating system.
// The system specific portions of the interface are located in headers
// with names reflecting the operating system. For example,
//
// <boost/system/cygwin_error.hpp>
// <boost/system/linux_error.hpp>
// <boost/system/windows_error.hpp>
//
// These headers are effectively empty for compiles on operating systems
// where they are not applicable.
// ----------------------------------------------------------------------//
// class error_category ------------------------------------------------//
class error_category : public noncopyable
{
public:
virtual ~error_category(){}
virtual const char * name() const BOOST_SYSTEM_NOEXCEPT = 0;
virtual std::string message( int ev ) const = 0;
inline virtual error_condition default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT;
inline virtual bool equivalent( int code,
const error_condition & condition ) const BOOST_SYSTEM_NOEXCEPT;
inline virtual bool equivalent( const error_code & code,
int condition ) const BOOST_SYSTEM_NOEXCEPT;
bool operator==(const error_category & rhs) const BOOST_SYSTEM_NOEXCEPT { return this == &rhs; }
bool operator!=(const error_category & rhs) const BOOST_SYSTEM_NOEXCEPT { return this != &rhs; }
bool operator<( const error_category & rhs ) const BOOST_SYSTEM_NOEXCEPT
{
return std::less<const error_category*>()( this, &rhs );
}
};
// predefined error categories -----------------------------------------//
# ifdef BOOST_ERROR_CODE_HEADER_ONLY
inline const error_category & system_category() BOOST_SYSTEM_NOEXCEPT;
inline const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT;
#else
BOOST_SYSTEM_DECL const error_category & system_category() BOOST_SYSTEM_NOEXCEPT;
BOOST_SYSTEM_DECL const error_category & generic_category() BOOST_SYSTEM_NOEXCEPT;
#endif
// deprecated synonyms --------------------------------------------------//
# ifndef BOOST_SYSTEM_NO_DEPRECATED
inline const error_category & get_system_category() { return system_category(); }
inline const error_category & get_generic_category() { return generic_category(); }
inline const error_category & get_posix_category() { return generic_category(); }
static const error_category & posix_category = generic_category();
static const error_category & errno_ecat = generic_category();
static const error_category & native_ecat = system_category();
# endif
// class error_condition -----------------------------------------------//
// error_conditions are portable, error_codes are system or library specific
class error_condition
{
public:
// constructors:
error_condition() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&generic_category()) {}
error_condition( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT : m_val(val), m_cat(&cat) {}
template <class ErrorConditionEnum>
error_condition(ErrorConditionEnum e,
typename boost::enable_if<is_error_condition_enum<ErrorConditionEnum> >::type* = 0) BOOST_SYSTEM_NOEXCEPT
{
*this = make_error_condition(e);
}
// modifiers:
void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
{
m_val = val;
m_cat = &cat;
}
template<typename ErrorConditionEnum>
typename boost::enable_if<is_error_condition_enum<ErrorConditionEnum>, error_condition>::type &
operator=( ErrorConditionEnum val ) BOOST_SYSTEM_NOEXCEPT
{
*this = make_error_condition(val);
return *this;
}
void clear() BOOST_SYSTEM_NOEXCEPT
{
m_val = 0;
m_cat = &generic_category();
}
// observers:
int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
std::string message() const { return m_cat->message(value()); }
typedef void (*unspecified_bool_type)();
static void unspecified_bool_true() {}
operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val == 0 ? 0 : unspecified_bool_true;
}
bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
{
return m_val == 0;
}
// relationals:
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
inline friend bool operator==( const error_condition & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return lhs.m_cat == rhs.m_cat && lhs.m_val == rhs.m_val;
}
inline friend bool operator<( const error_condition & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
{
return lhs.m_cat < rhs.m_cat
|| (lhs.m_cat == rhs.m_cat && lhs.m_val < rhs.m_val);
}
private:
int m_val;
const error_category * m_cat;
};
// class error_code ----------------------------------------------------//
// We want error_code to be a value type that can be copied without slicing
// and without requiring heap allocation, but we also want it to have
// polymorphic behavior based on the error category. This is achieved by
// abstract base class error_category supplying the polymorphic behavior,
// and error_code containing a pointer to an object of a type derived
// from error_category.
class error_code
{
public:
// constructors:
error_code() BOOST_SYSTEM_NOEXCEPT : m_val(0), m_cat(&system_category()) {}
error_code( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT : m_val(val), m_cat(&cat) {}
template <class ErrorCodeEnum>
error_code(ErrorCodeEnum e,
typename boost::enable_if<is_error_code_enum<ErrorCodeEnum> >::type* = 0) BOOST_SYSTEM_NOEXCEPT
{
*this = make_error_code(e);
}
// modifiers:
void assign( int val, const error_category & cat ) BOOST_SYSTEM_NOEXCEPT
{
m_val = val;
m_cat = &cat;
}
template<typename ErrorCodeEnum>
typename boost::enable_if<is_error_code_enum<ErrorCodeEnum>, error_code>::type &
operator=( ErrorCodeEnum val ) BOOST_SYSTEM_NOEXCEPT
{
*this = make_error_code(val);
return *this;
}
void clear() BOOST_SYSTEM_NOEXCEPT
{
m_val = 0;
m_cat = &system_category();
}
// observers:
int value() const BOOST_SYSTEM_NOEXCEPT { return m_val; }
const error_category & category() const BOOST_SYSTEM_NOEXCEPT { return *m_cat; }
error_condition default_error_condition() const BOOST_SYSTEM_NOEXCEPT { return m_cat->default_error_condition(value()); }
std::string message() const { return m_cat->message(value()); }
typedef void (*unspecified_bool_type)();
static void unspecified_bool_true() {}
operator unspecified_bool_type() const BOOST_SYSTEM_NOEXCEPT // true if error
{
return m_val == 0 ? 0 : unspecified_bool_true;
}
bool operator!() const BOOST_SYSTEM_NOEXCEPT // true if no error
{
return m_val == 0;
}
// relationals:
inline friend bool operator==( const error_code & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
{
return lhs.m_cat == rhs.m_cat && lhs.m_val == rhs.m_val;
}
inline friend bool operator<( const error_code & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
// the more symmetrical non-member syntax allows enum
// conversions work for both rhs and lhs.
{
return lhs.m_cat < rhs.m_cat
|| (lhs.m_cat == rhs.m_cat && lhs.m_val < rhs.m_val);
}
private:
int m_val;
const error_category * m_cat;
};
// predefined error_code object used as "throw on error" tag
# ifndef BOOST_SYSTEM_NO_DEPRECATED
BOOST_SYSTEM_DECL extern error_code throws;
# endif
// Moving from a "throws" object to a "throws" function without breaking
// existing code is a bit of a problem. The workaround is to place the
// "throws" function in namespace boost rather than namespace boost::system.
} // namespace system
namespace detail { inline system::error_code * throws() { return 0; } }
// Misuse of the error_code object is turned into a noisy failure by
// poisoning the reference. This particular implementation doesn't
// produce warnings or errors from popular compilers, is very efficient
// (as determined by inspecting generated code), and does not suffer
// from order of initialization problems. In practice, it also seems
// cause user function error handling implementation errors to be detected
// very early in the development cycle.
inline system::error_code & throws()
{ return *detail::throws(); }
namespace system
{
// non-member functions ------------------------------------------------//
inline bool operator!=( const error_code & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);
}
inline bool operator!=( const error_condition & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);
}
inline bool operator==( const error_code & code,
const error_condition & condition ) BOOST_SYSTEM_NOEXCEPT
{
return code.category().equivalent( code.value(), condition )
|| condition.category().equivalent( code, condition.value() );
}
inline bool operator!=( const error_code & lhs,
const error_condition & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);
}
inline bool operator==( const error_condition & condition,
const error_code & code ) BOOST_SYSTEM_NOEXCEPT
{
return condition.category().equivalent( code, condition.value() )
|| code.category().equivalent( code.value(), condition );
}
inline bool operator!=( const error_condition & lhs,
const error_code & rhs ) BOOST_SYSTEM_NOEXCEPT
{
return !(lhs == rhs);
}
// TODO: both of these may move elsewhere, but the LWG hasn't spoken yet.
template <class charT, class traits>
inline std::basic_ostream<charT,traits>&
operator<< (std::basic_ostream<charT,traits>& os, error_code ec)
{
os << ec.category().name() << ':' << ec.value();
return os;
}
inline std::size_t hash_value( const error_code & ec )
{
return static_cast<std::size_t>(ec.value())
+ reinterpret_cast<std::size_t>(&ec.category());
}
// make_* functions for errc::errc_t -----------------------------//
namespace errc
{
// explicit conversion:
inline error_code make_error_code( errc_t e ) BOOST_SYSTEM_NOEXCEPT
{ return error_code( e, generic_category() ); }
// implicit conversion:
inline error_condition make_error_condition( errc_t e ) BOOST_SYSTEM_NOEXCEPT
{ return error_condition( e, generic_category() ); }
}
// error_category default implementation -------------------------------//
error_condition error_category::default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT
{
return error_condition( ev, *this );
}
bool error_category::equivalent( int code,
const error_condition & condition ) const BOOST_SYSTEM_NOEXCEPT
{
return default_error_condition( code ) == condition;
}
bool error_category::equivalent( const error_code & code,
int condition ) const BOOST_SYSTEM_NOEXCEPT
{
return *this == code.category() && code.value() == condition;
}
} // namespace system
} // namespace boost
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
# ifdef BOOST_ERROR_CODE_HEADER_ONLY
# include <boost/system/detail/error_code.ipp>
# endif
#endif // BOOST_ERROR_CODE_HPP

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// Boost system_error.hpp --------------------------------------------------//
// Copyright Beman Dawes 2006
// 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)
#ifndef BOOST_SYSTEM_ERROR_HPP
#define BOOST_SYSTEM_ERROR_HPP
#include <string>
#include <stdexcept>
#include <cassert>
#include <boost/system/error_code.hpp>
namespace boost
{
namespace system
{
// class system_error ------------------------------------------------------------//
class BOOST_SYMBOL_VISIBLE system_error : public std::runtime_error
// BOOST_SYMBOL_VISIBLE is needed by GCC to ensure system_error thrown from a shared
// library can be caught. See svn.boost.org/trac/boost/ticket/3697
{
public:
system_error( error_code ec )
: std::runtime_error(""), m_error_code(ec) {}
system_error( error_code ec, const std::string & what_arg )
: std::runtime_error(what_arg), m_error_code(ec) {}
system_error( error_code ec, const char* what_arg )
: std::runtime_error(what_arg), m_error_code(ec) {}
system_error( int ev, const error_category & ecat )
: std::runtime_error(""), m_error_code(ev,ecat) {}
system_error( int ev, const error_category & ecat,
const std::string & what_arg )
: std::runtime_error(what_arg), m_error_code(ev,ecat) {}
system_error( int ev, const error_category & ecat,
const char * what_arg )
: std::runtime_error(what_arg), m_error_code(ev,ecat) {}
virtual ~system_error() throw() {}
const error_code & code() const throw() { return m_error_code; }
const char * what() const throw();
private:
error_code m_error_code;
mutable std::string m_what;
};
// implementation ------------------------------------------------------//
inline const char * system_error::what() const throw()
// see http://www.boost.org/more/error_handling.html for lazy build rationale
{
if ( m_what.empty() )
{
#ifndef BOOST_NO_EXCEPTIONS
try
#endif
{
m_what = this->std::runtime_error::what();
if ( !m_what.empty() ) m_what += ": ";
m_what += m_error_code.message();
}
#ifndef BOOST_NO_EXCEPTIONS
catch (...) { return std::runtime_error::what(); }
#endif
}
return m_what.c_str();
}
} // namespace system
} // namespace boost
#endif // BOOST_SYSTEM_ERROR_HPP