mirror of
https://github.com/darlinghq/darling-libcxx.git
synced 2024-11-24 12:29:57 +00:00
f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
608 lines
19 KiB
C++
608 lines
19 KiB
C++
// -*- C++ -*-
|
|
//===---------------------------- system_error ----------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP_SYSTEM_ERROR
|
|
#define _LIBCPP_SYSTEM_ERROR
|
|
|
|
/*
|
|
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 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 false_type {};
|
|
|
|
template <class T> struct is_error_condition_enum
|
|
: public 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;
|
|
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;
|
|
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 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 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>
|
|
: 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 <__config>
|
|
#include <cerrno>
|
|
#include <type_traits>
|
|
#include <stdexcept>
|
|
#include <__functional_base>
|
|
|
|
#pragma GCC system_header
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
// is_error_code_enum
|
|
|
|
template <class _Tp> struct is_error_code_enum
|
|
: public false_type {};
|
|
|
|
// is_error_condition_enum
|
|
|
|
template <class _Tp> struct is_error_condition_enum
|
|
: public false_type {};
|
|
|
|
//enum class errc
|
|
struct errc
|
|
{
|
|
enum _ {
|
|
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
|
|
};
|
|
|
|
_ __v_;
|
|
|
|
errc(_ __v) : __v_(__v) {}
|
|
operator int() const {return __v_;}
|
|
|
|
};
|
|
|
|
template <> struct is_error_condition_enum<errc>
|
|
: true_type { };
|
|
|
|
template <> struct is_error_condition_enum<errc::_>
|
|
: true_type { };
|
|
|
|
class error_condition;
|
|
class error_code;
|
|
|
|
// class error_category
|
|
|
|
class __do_message;
|
|
|
|
class error_category
|
|
{
|
|
public:
|
|
virtual ~error_category();
|
|
|
|
private:
|
|
error_category();
|
|
error_category(const error_category&);// = delete;
|
|
error_category& operator=(const error_category&);// = delete;
|
|
|
|
public:
|
|
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 string message(int __ev) const = 0;
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
bool operator==(const error_category& __rhs) const {return this == &__rhs;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
bool operator!=(const error_category& __rhs) const {return !(*this == __rhs);}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
bool operator< (const error_category& __rhs) const {return this < &__rhs;}
|
|
|
|
friend class __do_message;
|
|
};
|
|
|
|
class _LIBCPP_HIDDEN __do_message
|
|
: public error_category
|
|
{
|
|
public:
|
|
virtual string message(int ev) const;
|
|
};
|
|
|
|
const error_category& generic_category();
|
|
const error_category& system_category();
|
|
|
|
class error_condition
|
|
{
|
|
int __val_;
|
|
const error_category* __cat_;
|
|
public:
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_condition() : __val_(0), __cat_(&generic_category()) {}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_condition(int __val, const error_category& __cat)
|
|
: __val_(__val), __cat_(&__cat) {}
|
|
|
|
template <class _E>
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_condition(_E __e, typename enable_if<is_error_condition_enum<_E>::value>::type* = 0)
|
|
{*this = make_error_condition(__e);}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
void assign(int __val, const error_category& __cat)
|
|
{
|
|
__val_ = __val;
|
|
__cat_ = &__cat;
|
|
}
|
|
|
|
template <class _E>
|
|
_LIBCPP_ALWAYS_INLINE
|
|
typename enable_if
|
|
<
|
|
is_error_condition_enum<_E>::value,
|
|
error_condition&
|
|
>::type
|
|
operator=(_E __e)
|
|
{*this = make_error_condition(__e); return *this;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
void clear()
|
|
{
|
|
__val_ = 0;
|
|
__cat_ = &generic_category();
|
|
}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
int value() const {return __val_;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
const error_category& category() const {return *__cat_;}
|
|
string message() const;
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
//explicit
|
|
operator bool() const {return __val_ != 0;}
|
|
};
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
error_condition
|
|
make_error_condition(errc __e)
|
|
{
|
|
return error_condition(static_cast<int>(__e), generic_category());
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
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:
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_code() : __val_(0), __cat_(&system_category()) {}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_code(int __val, const error_category& __cat)
|
|
: __val_(__val), __cat_(&__cat) {}
|
|
|
|
template <class _E>
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_code(_E __e, typename enable_if<is_error_code_enum<_E>::value>::type* = 0)
|
|
{*this = make_error_code(__e);}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
void assign(int __val, const error_category& __cat)
|
|
{
|
|
__val_ = __val;
|
|
__cat_ = &__cat;
|
|
}
|
|
|
|
template <class _E>
|
|
_LIBCPP_ALWAYS_INLINE
|
|
typename enable_if
|
|
<
|
|
is_error_code_enum<_E>::value,
|
|
error_code&
|
|
>::type
|
|
operator=(_E __e)
|
|
{*this = make_error_code(__e); return *this;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
void clear()
|
|
{
|
|
__val_ = 0;
|
|
__cat_ = &system_category();
|
|
}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
int value() const {return __val_;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
const error_category& category() const {return *__cat_;}
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
error_condition default_error_condition() const
|
|
{return __cat_->default_error_condition(__val_);}
|
|
|
|
string message() const;
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
//explicit
|
|
operator bool() const {return __val_ != 0;}
|
|
};
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
error_code
|
|
make_error_code(errc __e)
|
|
{
|
|
return error_code(static_cast<int>(__e), generic_category());
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator<(const error_code& __x, const error_code& __y)
|
|
{
|
|
return __x.category() < __y.category()
|
|
|| __x.category() == __y.category() && __x.value() < __y.value();
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(const error_code& __x, const error_code& __y)
|
|
{
|
|
return __x.category() == __y.category() && __x.value() == __y.value();
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(const error_code& __x, const error_condition& __y)
|
|
{
|
|
return __x.category().equivalent(__x.value(), __y)
|
|
|| __y.category().equivalent(__x, __y.value());
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(const error_condition& __x, const error_code& __y)
|
|
{
|
|
return __y == __x;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator==(const error_condition& __x, const error_condition& __y)
|
|
{
|
|
return __x.category() == __y.category() && __x.value() == __y.value();
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const error_code& __x, const error_code& __y) {return !(__x == __y);}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const error_code& __x, const error_condition& __y) {return !(__x == __y);}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const error_condition& __x, const error_code& __y) {return !(__x == __y);}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const error_condition& __x, const error_condition& __y) {return !(__x == __y);}
|
|
|
|
template <>
|
|
struct hash<error_code>
|
|
: public unary_function<error_code, size_t>
|
|
{
|
|
size_t operator()(const error_code& __ec) const
|
|
{
|
|
return static_cast<size_t>(__ec.value());
|
|
}
|
|
};
|
|
|
|
// system_error
|
|
|
|
class system_error
|
|
: public runtime_error
|
|
{
|
|
error_code __ec_;
|
|
public:
|
|
system_error(error_code __ec, const 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 string& __what_arg);
|
|
system_error(int __ev, const error_category& __ecat, const char* __what_arg);
|
|
system_error(int __ev, const error_category& __ecat);
|
|
~system_error() throw();
|
|
|
|
_LIBCPP_ALWAYS_INLINE
|
|
const error_code& code() const throw() {return __ec_;}
|
|
|
|
private:
|
|
static string __init(const error_code&, string);
|
|
};
|
|
|
|
void __throw_system_error(int ev, const char* what_arg);
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_SYSTEM_ERROR
|