diff options
Diffstat (limited to 'include/llvm/Support/system_error.h')
| -rw-r--r-- | include/llvm/Support/system_error.h | 786 |
1 files changed, 10 insertions, 776 deletions
diff --git a/include/llvm/Support/system_error.h b/include/llvm/Support/system_error.h index dd67d4f79d..9aa00d8745 100644 --- a/include/llvm/Support/system_error.h +++ b/include/llvm/Support/system_error.h @@ -7,790 +7,24 @@ // //===----------------------------------------------------------------------===// // -// This was lifted from libc++ and modified for C++03. This is called -// system_error even though it does not define that class because that's what -// it's called in C++0x. We don't define system_error because it is only used -// for exception handling, which we don't use in LLVM. +// This is a temporary file to help with the transition to std::error_code. // //===----------------------------------------------------------------------===// #ifndef LLVM_SUPPORT_SYSTEM_ERROR_H #define LLVM_SUPPORT_SYSTEM_ERROR_H -#include "llvm/Support/Compiler.h" - -/* - system_error synopsis - -namespace std -{ - -class error_category -{ -public: - virtual ~error_category(); - - error_category(const error_category&) = delete; - error_category& operator=(const error_category&) = delete; - - virtual const char* name() const = 0; - virtual error_condition default_error_condition(int ev) const; - virtual bool equivalent(int code, const error_condition& condition) const; - virtual bool equivalent(const error_code& code, int condition) const; - virtual std::string message(int ev) const = 0; - - bool operator==(const error_category& rhs) const; - bool operator!=(const error_category& rhs) const; - bool operator<(const error_category& rhs) const; -}; - -const error_category& generic_category(); -const error_category& system_category(); - -template <class T> struct is_error_code_enum - : public std::false_type {}; - -template <class T> struct is_error_condition_enum - : public std::false_type {}; - -class error_code -{ -public: - // constructors: - error_code(); - error_code(int val, const error_category& cat); - template <class ErrorCodeEnum> - error_code(ErrorCodeEnum e); - - // modifiers: - void assign(int val, const error_category& cat); - template <class ErrorCodeEnum> - error_code& operator=(ErrorCodeEnum e); - void clear(); - - // observers: - int value() const; - const error_category& category() const; - error_condition default_error_condition() const; - std::string message() const; - explicit operator bool() const; -}; - -// non-member functions: -bool operator<(const error_code& lhs, const error_code& rhs); -template <class charT, class traits> - basic_ostream<charT,traits>& - operator<<(basic_ostream<charT,traits>& os, const error_code& ec); - -class error_condition -{ -public: - // constructors: - error_condition(); - error_condition(int val, const error_category& cat); - template <class ErrorConditionEnum> - error_condition(ErrorConditionEnum e); - - // modifiers: - void assign(int val, const error_category& cat); - template <class ErrorConditionEnum> - error_condition& operator=(ErrorConditionEnum e); - void clear(); - - // observers: - int value() const; - const error_category& category() const; - std::string message() const; - explicit operator bool() const; -}; - -bool operator<(const error_condition& lhs, const error_condition& rhs); - -class system_error - : public runtime_error -{ -public: - system_error(error_code ec, const std::string& what_arg); - system_error(error_code ec, const char* what_arg); - system_error(error_code ec); - system_error(int ev, const error_category& ecat, const std::string& what_arg); - system_error(int ev, const error_category& ecat, const char* what_arg); - system_error(int ev, const error_category& ecat); - - const error_code& code() const throw(); - const char* what() const throw(); -}; - -enum class errc -{ - 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 -}; - -template <> struct is_error_condition_enum<errc> : std::true_type { } - -error_code make_error_code(errc e); -error_condition make_error_condition(errc e); - -// Comparison operators: -bool operator==(const error_code& lhs, const error_code& rhs); -bool operator==(const error_code& lhs, const error_condition& rhs); -bool operator==(const error_condition& lhs, const error_code& rhs); -bool operator==(const error_condition& lhs, const error_condition& rhs); -bool operator!=(const error_code& lhs, const error_code& rhs); -bool operator!=(const error_code& lhs, const error_condition& rhs); -bool operator!=(const error_condition& lhs, const error_code& rhs); -bool operator!=(const error_condition& lhs, const error_condition& rhs); - -template <> struct hash<std::error_code>; - -} // std - -*/ - -#include "llvm/Config/llvm-config.h" -#include <cerrno> -#include <string> - -// This must be here instead of a .inc file because it is used in the definition -// of the enum values below. -#ifdef LLVM_ON_WIN32 - - // The following numbers were taken from VS2010. -# ifndef EAFNOSUPPORT -# define EAFNOSUPPORT 102 -# endif -# ifndef EADDRINUSE -# define EADDRINUSE 100 -# endif -# ifndef EADDRNOTAVAIL -# define EADDRNOTAVAIL 101 -# endif -# ifndef EISCONN -# define EISCONN 113 -# endif -# ifndef E2BIG -# define E2BIG 7 -# endif -# ifndef EDOM -# define EDOM 33 -# endif -# ifndef EFAULT -# define EFAULT 14 -# endif -# ifndef EBADF -# define EBADF 9 -# endif -# ifndef EBADMSG -# define EBADMSG 104 -# endif -# ifndef EPIPE -# define EPIPE 32 -# endif -# ifndef ECONNABORTED -# define ECONNABORTED 106 -# endif -# ifndef EALREADY -# define EALREADY 103 -# endif -# ifndef ECONNREFUSED -# define ECONNREFUSED 107 -# endif -# ifndef ECONNRESET -# define ECONNRESET 108 -# endif -# ifndef EXDEV -# define EXDEV 18 -# endif -# ifndef EDESTADDRREQ -# define EDESTADDRREQ 109 -# endif -# ifndef EBUSY -# define EBUSY 16 -# endif -# ifndef ENOTEMPTY -# define ENOTEMPTY 41 -# endif -# ifndef ENOEXEC -# define ENOEXEC 8 -# endif -# ifndef EEXIST -# define EEXIST 17 -# endif -# ifndef EFBIG -# define EFBIG 27 -# endif -# ifndef ENAMETOOLONG -# define ENAMETOOLONG 38 -# endif -# ifndef ENOSYS -# define ENOSYS 40 -# endif -# ifndef EHOSTUNREACH -# define EHOSTUNREACH 110 -# endif -# ifndef EIDRM -# define EIDRM 111 -# endif -# ifndef EILSEQ -# define EILSEQ 42 -# endif -# ifndef ENOTTY -# define ENOTTY 25 -# endif -# ifndef EINTR -# define EINTR 4 -# endif -# ifndef EINVAL -# define EINVAL 22 -# endif -# ifndef ESPIPE -# define ESPIPE 29 -# endif -# ifndef EIO -# define EIO 5 -# endif -# ifndef EISDIR -# define EISDIR 21 -# endif -# ifndef EMSGSIZE -# define EMSGSIZE 115 -# endif -# ifndef ENETDOWN -# define ENETDOWN 116 -# endif -# ifndef ENETRESET -# define ENETRESET 117 -# endif -# ifndef ENETUNREACH -# define ENETUNREACH 118 -# endif -# ifndef ENOBUFS -# define ENOBUFS 119 -# endif -# ifndef ECHILD -# define ECHILD 10 -# endif -# ifndef ENOLINK -# define ENOLINK 121 -# endif -# ifndef ENOLCK -# define ENOLCK 39 -# endif -# ifndef ENODATA -# define ENODATA 120 -# endif -# ifndef ENOMSG -# define ENOMSG 122 -# endif -# ifndef ENOPROTOOPT -# define ENOPROTOOPT 123 -# endif -# ifndef ENOSPC -# define ENOSPC 28 -# endif -# ifndef ENOSR -# define ENOSR 124 -# endif -# ifndef ENXIO -# define ENXIO 6 -# endif -# ifndef ENODEV -# define ENODEV 19 -# endif -# ifndef ENOENT -# define ENOENT 2 -# endif -# ifndef ESRCH -# define ESRCH 3 -# endif -# ifndef ENOTDIR -# define ENOTDIR 20 -# endif -# ifndef ENOTSOCK -# define ENOTSOCK 128 -# endif -# ifndef ENOSTR -# define ENOSTR 125 -# endif -# ifndef ENOTCONN -# define ENOTCONN 126 -# endif -# ifndef ENOMEM -# define ENOMEM 12 -# endif -# ifndef ENOTSUP -# define ENOTSUP 129 -# endif -# ifndef ECANCELED -# define ECANCELED 105 -# endif -# ifndef EINPROGRESS -# define EINPROGRESS 112 -# endif -# ifndef EPERM -# define EPERM 1 -# endif -# ifndef EOPNOTSUPP -# define EOPNOTSUPP 130 -# endif -# ifndef EWOULDBLOCK -# define EWOULDBLOCK 140 -# endif -# ifndef EOWNERDEAD -# define EOWNERDEAD 133 -# endif -# ifndef EACCES -# define EACCES 13 -# endif -# ifndef EPROTO -# define EPROTO 134 -# endif -# ifndef EPROTONOSUPPORT -# define EPROTONOSUPPORT 135 -# endif -# ifndef EROFS -# define EROFS 30 -# endif -# ifndef EDEADLK -# define EDEADLK 36 -# endif -# ifndef EAGAIN -# define EAGAIN 11 -# endif -# ifndef ERANGE -# define ERANGE 34 -# endif -# ifndef ENOTRECOVERABLE -# define ENOTRECOVERABLE 127 -# endif -# ifndef ETIME -# define ETIME 137 -# endif -# ifndef ETXTBSY -# define ETXTBSY 139 -# endif -# ifndef ETIMEDOUT -# define ETIMEDOUT 138 -# endif -# ifndef ENFILE -# define ENFILE 23 -# endif -# ifndef EMFILE -# define EMFILE 24 -# endif -# ifndef EMLINK -# define EMLINK 31 -# endif -# ifndef ELOOP -# define ELOOP 114 -# endif -# ifndef EOVERFLOW -# define EOVERFLOW 132 -# endif -# ifndef EPROTOTYPE -# define EPROTOTYPE 136 -# endif -#endif +#include <system_error> namespace llvm { - -// is_error_code_enum - -template <class Tp> struct is_error_code_enum : public std::false_type {}; - -// is_error_condition_enum - -template <class Tp> struct is_error_condition_enum : public std::false_type {}; - -// Some error codes are not present on all platforms, so we provide equivalents -// for them: - -enum class errc { - 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, -#ifdef EBADMSG - bad_message = EBADMSG, -#else - bad_message = EINVAL, -#endif - 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, -#ifdef ENOLINK - no_link = ENOLINK, -#else - no_link = EINVAL, -#endif - no_lock_available = ENOLCK, -#ifdef ENODATA - no_message_available = ENODATA, -#else - no_message_available = ENOMSG, -#endif - no_message = ENOMSG, - no_protocol_option = ENOPROTOOPT, - no_space_on_device = ENOSPC, -#ifdef ENOSR - no_stream_resources = ENOSR, -#else - no_stream_resources = ENOMEM, -#endif - 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, -#ifdef ENOSTR - not_a_stream = ENOSTR, -#else - not_a_stream = EINVAL, -#endif - not_connected = ENOTCONN, - not_enough_memory = ENOMEM, - not_supported = ENOTSUP, -#ifdef ECANCELED - operation_canceled = ECANCELED, -#else - operation_canceled = EINVAL, -#endif - operation_in_progress = EINPROGRESS, - operation_not_permitted = EPERM, - operation_not_supported = EOPNOTSUPP, - operation_would_block = EWOULDBLOCK, -#ifdef EOWNERDEAD - owner_dead = EOWNERDEAD, -#else - owner_dead = EINVAL, -#endif - permission_denied = EACCES, -#ifdef EPROTO - protocol_error = EPROTO, -#else - protocol_error = EINVAL, -#endif - protocol_not_supported = EPROTONOSUPPORT, - read_only_file_system = EROFS, - resource_deadlock_would_occur = EDEADLK, - resource_unavailable_try_again = EAGAIN, - result_out_of_range = ERANGE, -#ifdef ENOTRECOVERABLE - state_not_recoverable = ENOTRECOVERABLE, -#else - state_not_recoverable = EINVAL, -#endif -#ifdef ETIME - stream_timeout = ETIME, -#else - stream_timeout = ETIMEDOUT, -#endif - 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 -}; - - -template <> struct is_error_condition_enum<errc> : std::true_type { }; - -class error_condition; -class error_code; - -// class error_category - -class _do_message; - -class error_category -{ -public: - virtual ~error_category(); - - error_category(); -private: - error_category(const error_category&) LLVM_DELETED_FUNCTION; - error_category& operator=(const error_category&) LLVM_DELETED_FUNCTION; - -public: - virtual const char* name() const LLVM_NOEXCEPT = 0; - virtual error_condition default_error_condition(int _ev) const LLVM_NOEXCEPT; - virtual bool - equivalent(int _code, const error_condition &_condition) const LLVM_NOEXCEPT; - virtual bool equivalent(const error_code &_code, - int _condition) const LLVM_NOEXCEPT; - virtual std::string message(int _ev) const = 0; - - bool operator==(const error_category& _rhs) const {return this == &_rhs;} - - bool operator!=(const error_category& _rhs) const {return !(*this == _rhs);} - - bool operator< (const error_category& _rhs) const {return this < &_rhs;} - - friend class _do_message; -}; - -class _do_message : public error_category -{ -public: - std::string message(int ev) const override; -}; - -const error_category& generic_category(); -const error_category& system_category(); - -class error_condition -{ - int _val_; - const error_category* _cat_; -public: - error_condition() : _val_(0), _cat_(&generic_category()) {} - - error_condition(int _val, const error_category& _cat) - : _val_(_val), _cat_(&_cat) {} - - template <class E> - error_condition(E _e, typename std::enable_if< - is_error_condition_enum<E>::value - >::type* = 0) - {*this = make_error_condition(_e);} - - void assign(int _val, const error_category& _cat) { - _val_ = _val; - _cat_ = &_cat; - } - - template <class E> - typename std::enable_if<is_error_condition_enum<E>::value, - error_condition &>::type - operator=(E _e) { - *this = make_error_condition(_e); - return *this; - } - - void clear() { - _val_ = 0; - _cat_ = &generic_category(); - } - - int value() const {return _val_;} - - const error_category& category() const {return *_cat_;} - std::string message() const; - - LLVM_EXPLICIT operator bool() const { return _val_ != 0; } -}; - -inline error_condition make_error_condition(errc _e) { - return error_condition(static_cast<int>(_e), generic_category()); -} - -inline bool operator<(const error_condition& _x, const error_condition& _y) { - return _x.category() < _y.category() - || (_x.category() == _y.category() && _x.value() < _y.value()); -} - -// error_code - -class error_code { - int _val_; - const error_category* _cat_; -public: - error_code() : _val_(0), _cat_(&system_category()) {} - - error_code(int _val, const error_category& _cat) - : _val_(_val), _cat_(&_cat) {} - - template <class E> - error_code(E _e, typename std::enable_if< - is_error_code_enum<E>::value - >::type* = 0) { - *this = make_error_code(_e); - } - - void assign(int _val, const error_category& _cat) { - _val_ = _val; - _cat_ = &_cat; - } - - template <class E> - typename std::enable_if<is_error_code_enum<E>::value, error_code &>::type - operator=(E _e) { - *this = make_error_code(_e); - return *this; - } - - void clear() { - _val_ = 0; - _cat_ = &system_category(); - } - - int value() const {return _val_;} - - const error_category& category() const {return *_cat_;} - - error_condition default_error_condition() const - {return _cat_->default_error_condition(_val_);} - - std::string message() const; - - LLVM_EXPLICIT operator bool() const { - return _val_ != 0; - } -}; - -inline error_code make_error_code(errc _e) { - return error_code(static_cast<int>(_e), generic_category()); -} - -inline bool operator<(const error_code& _x, const error_code& _y) { - return _x.category() < _y.category() - || (_x.category() == _y.category() && _x.value() < _y.value()); -} - -inline bool operator==(const error_code& _x, const error_code& _y) { - return _x.category() == _y.category() && _x.value() == _y.value(); -} - -inline bool operator==(const error_code& _x, const error_condition& _y) { - return _x.category().equivalent(_x.value(), _y) - || _y.category().equivalent(_x, _y.value()); -} - -inline bool operator==(const error_condition& _x, const error_code& _y) { - return _y == _x; -} - -inline bool operator==(const error_condition& _x, const error_condition& _y) { - return _x.category() == _y.category() && _x.value() == _y.value(); -} - -inline bool operator!=(const error_code& _x, const error_code& _y) { - return !(_x == _y); -} - -inline bool operator!=(const error_code& _x, const error_condition& _y) { - return !(_x == _y); -} - -inline bool operator!=(const error_condition& _x, const error_code& _y) { - return !(_x == _y); -} - -inline bool operator!=(const error_condition& _x, const error_condition& _y) { - return !(_x == _y); +using std::error_code; +using std::is_error_condition_enum; +using std::is_error_code_enum; +using std::system_category; +using std::generic_category; +using std::error_category; +using std::make_error_code; +using std::error_condition; } -} // end namespace llvm #endif |