Swiftdiff options
Diffstat (limited to '3rdParty/Boost/libs/system/src')
| -rw-r--r-- | 3rdParty/Boost/libs/system/src/error_code.cpp | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/3rdParty/Boost/libs/system/src/error_code.cpp b/3rdParty/Boost/libs/system/src/error_code.cpp new file mode 100644 index 0000000..030ab70 --- /dev/null +++ b/3rdParty/Boost/libs/system/src/error_code.cpp @@ -0,0 +1,433 @@ +// error_code support implementation file ----------------------------------// + +// Copyright Beman Dawes 2002, 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 library home page at http://www.boost.org/libs/system + +//----------------------------------------------------------------------------// + +#include <boost/config/warning_disable.hpp> + +// define BOOST_SYSTEM_SOURCE so that <boost/system/config.hpp> knows +// the library is being built (possibly exporting rather than importing code) +#define BOOST_SYSTEM_SOURCE + +#include <boost/system/config.hpp> +#include <boost/system/error_code.hpp> +#include <boost/cerrno.hpp> +#include <vector> +#include <cstdlib> +#include <cassert> + +using namespace boost::system; +using namespace boost::system::posix_error; + +#include <cstring> // for strerror/strerror_r + +# if defined( BOOST_WINDOWS_API ) +# include <windows.h> +# ifndef ERROR_INCORRECT_SIZE +# define ERROR_INCORRECT_SIZE ERROR_BAD_ARGUMENTS +# endif +# endif + +//----------------------------------------------------------------------------// + +namespace +{ + // standard error categories ---------------------------------------------// + + class generic_error_category : public error_category + { + public: + generic_error_category(){} + const char * name() const; + std::string message( int ev ) const; + }; + + class system_error_category : public error_category + { + public: + system_error_category(){} + const char * name() const; + std::string message( int ev ) const; + error_condition default_error_condition( int ev ) const; + }; + + // generic_error_category implementation ---------------------------------// + + const char * generic_error_category::name() const + { + return "generic"; + } + + std::string generic_error_category::message( int ev ) const + { + 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 Sundo 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(__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; + try + { + 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 + { + return "system"; + } + + error_condition system_error_category::default_error_condition( int ev ) const + { + 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_synbolic_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 + case ENOTRECOVERABLE: return make_error_condition( state_not_recoverable ); + 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 ); + case EOWNERDEAD: return make_error_condition( owner_dead ); + 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 +// TODO: + +//Some quick notes on the implementation (sorry for the noise if +//someone has already mentioned them): +// +//- The ::LocalFree() usage isn't exception safe. +// +//See: +// +//<http://boost.cvs.sourceforge.net/boost/boost/boost/asio/system_exception.hpp?revision=1.1&view=markup> +// +//in the implementation of what() for an example. +// +//Cheers, +//Chris + std::string system_error_category::message( int ev ) const + { +# ifndef BOOST_NO_ANSI_APIS + LPVOID lpMsgBuf; + 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 + ); + if (retval == 0) + return std::string("Unknown error"); + + std::string str( static_cast<LPCSTR>(lpMsgBuf) ); + ::LocalFree( lpMsgBuf ); // free the buffer +# else // WinCE workaround + LPVOID lpMsgBuf; + DWORD retval = ::FormatMessageW( + FORMAT_MESSAGE_ALLOCATE_BUFFER | + FORMAT_MESSAGE_FROM_SYSTEM | + FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, + ev, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language + (LPWSTR) &lpMsgBuf, + 0, + NULL + ); + if (retval == 0) + return std::string("Unknown error"); + + int num_chars = (wcslen( static_cast<LPCWSTR>(lpMsgBuf) ) + 1) * 2; + LPSTR narrow_buffer = (LPSTR)_alloca( num_chars ); + if (::WideCharToMultiByte(CP_ACP, 0, static_cast<LPCWSTR>(lpMsgBuf), -1, narrow_buffer, num_chars, NULL, NULL) == 0) + return std::string("Unknown error"); + + std::string str( narrow_buffer ); + ::LocalFree( lpMsgBuf ); // free the buffer +# 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 + +namespace boost +{ + namespace system + { + + 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 + + BOOST_SYSTEM_DECL const error_category & get_system_category() + { + static const system_error_category system_category_const; + return system_category_const; + } + + BOOST_SYSTEM_DECL const error_category & get_generic_category() + { + static const generic_error_category generic_category_const; + return generic_category_const; + } + + } // namespace system +} // namespace boost |