Eric Fiselier 11f6045379 Add ABI option to remove recently inlined __shared_count functions from the library.
In order to allow inlining of previously out-of-line functions without an ABI break
libc++ provides legacy definitions in the dylib that old programs can
continue to use. Unfortunatly Windows link.exe detects this hack and diagnoses the duplicate
definitions.

This patch disable the duplicate definitions on Windows by adding an ABI option
which disables all "legacy out-of-line symbols"

llvm-svn: 292190
2017-01-17 03:16:26 +00:00

673 lines
22 KiB
C++

// -*- C++ -*-
//===---------------------------- system_error ----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. 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() noexcept;
constexpr error_category();
error_category(const error_category&) = delete;
error_category& operator=(const error_category&) = delete;
virtual const char* name() const noexcept = 0;
virtual error_condition default_error_condition(int ev) const noexcept;
virtual bool equivalent(int code, const error_condition& condition) const noexcept;
virtual bool equivalent(const error_code& code, int condition) const noexcept;
virtual string message(int ev) const = 0;
bool operator==(const error_category& rhs) const noexcept;
bool operator!=(const error_category& rhs) const noexcept;
bool operator<(const error_category& rhs) const noexcept;
};
const error_category& generic_category() noexcept;
const error_category& system_category() noexcept;
template <class T> struct is_error_code_enum
: public false_type {};
template <class T> struct is_error_condition_enum
: public false_type {};
template <class _Tp>
constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value; // C++17
template <class _Tp>
constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value; // C++17
class error_code
{
public:
// constructors:
error_code() noexcept;
error_code(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code(ErrorCodeEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code& operator=(ErrorCodeEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
error_condition default_error_condition() const noexcept;
string message() const;
explicit operator bool() const noexcept;
};
// non-member functions:
bool operator<(const error_code& lhs, const error_code& rhs) noexcept;
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() noexcept;
error_condition(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition(ErrorConditionEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition& operator=(ErrorConditionEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
string message() const noexcept;
explicit operator bool() const noexcept;
};
bool operator<(const error_condition& lhs, const error_condition& rhs) noexcept;
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 noexcept;
const char* what() const noexcept;
};
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) noexcept;
error_condition make_error_condition(errc e) noexcept;
// Comparison operators:
bool operator==(const error_code& lhs, const error_code& rhs) noexcept;
bool operator==(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator==(const error_condition& lhs, const error_code& rhs) noexcept;
bool operator==(const error_condition& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_condition& rhs) noexcept;
template <> struct hash<std::error_code>;
template <> struct hash<std::error_condition>;
} // std
*/
#include <__config>
#include <cerrno>
#include <type_traits>
#include <stdexcept>
#include <__functional_base>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// is_error_code_enum
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum
: public false_type {};
#if _LIBCPP_STD_VER > 14
template <class _Tp>
constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value;
#endif
// is_error_condition_enum
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum
: public false_type {};
#if _LIBCPP_STD_VER > 14
template <class _Tp>
constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value;
#endif
// Some error codes are not present on all platforms, so we provide equivalents
// for them:
//enum class errc
_LIBCPP_DECLARE_STRONG_ENUM(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,
#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,
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,
#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
};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(errc)
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum<errc>
: true_type { };
#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum<errc::__lx>
: true_type { };
#endif
class _LIBCPP_TYPE_VIS error_condition;
class _LIBCPP_TYPE_VIS error_code;
// class error_category
class _LIBCPP_HIDDEN __do_message;
class _LIBCPP_TYPE_VIS error_category
{
public:
virtual ~error_category() _NOEXCEPT;
#if defined(_LIBCPP_BUILDING_SYSTEM_ERROR) && \
defined(_LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS)
error_category() _NOEXCEPT;
#else
_LIBCPP_ALWAYS_INLINE
_LIBCPP_CONSTEXPR_AFTER_CXX11 error_category() _NOEXCEPT _LIBCPP_DEFAULT
#endif
private:
error_category(const error_category&);// = delete;
error_category& operator=(const error_category&);// = delete;
public:
virtual const char* name() const _NOEXCEPT = 0;
virtual error_condition default_error_condition(int __ev) const _NOEXCEPT;
virtual bool equivalent(int __code, const error_condition& __condition) const _NOEXCEPT;
virtual bool equivalent(const error_code& __code, int __condition) const _NOEXCEPT;
virtual string message(int __ev) const = 0;
_LIBCPP_ALWAYS_INLINE
bool operator==(const error_category& __rhs) const _NOEXCEPT {return this == &__rhs;}
_LIBCPP_ALWAYS_INLINE
bool operator!=(const error_category& __rhs) const _NOEXCEPT {return !(*this == __rhs);}
_LIBCPP_ALWAYS_INLINE
bool operator< (const error_category& __rhs) const _NOEXCEPT {return this < &__rhs;}
friend class _LIBCPP_HIDDEN __do_message;
};
class _LIBCPP_HIDDEN __do_message
: public error_category
{
public:
virtual string message(int ev) const;
};
_LIBCPP_FUNC_VIS const error_category& generic_category() _NOEXCEPT;
_LIBCPP_FUNC_VIS const error_category& system_category() _NOEXCEPT;
class _LIBCPP_TYPE_VIS error_condition
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_ALWAYS_INLINE
error_condition() _NOEXCEPT : __val_(0), __cat_(&generic_category()) {}
_LIBCPP_ALWAYS_INLINE
error_condition(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
error_condition(_Ep __e,
typename enable_if<is_error_condition_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_condition(__e);}
_LIBCPP_ALWAYS_INLINE
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
typename enable_if
<
is_error_condition_enum<_Ep>::value,
error_condition&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_condition(__e); return *this;}
_LIBCPP_ALWAYS_INLINE
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &generic_category();
}
_LIBCPP_ALWAYS_INLINE
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_ALWAYS_INLINE
const error_category& category() const _NOEXCEPT {return *__cat_;}
string message() const;
_LIBCPP_ALWAYS_INLINE
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_condition
make_error_condition(errc __e) _NOEXCEPT
{
return error_condition(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() < __y.category()
|| (__x.category() == __y.category() && __x.value() < __y.value());
}
// error_code
class _LIBCPP_TYPE_VIS error_code
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_ALWAYS_INLINE
error_code() _NOEXCEPT : __val_(0), __cat_(&system_category()) {}
_LIBCPP_ALWAYS_INLINE
error_code(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
error_code(_Ep __e,
typename enable_if<is_error_code_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_code(__e);}
_LIBCPP_ALWAYS_INLINE
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
typename enable_if
<
is_error_code_enum<_Ep>::value,
error_code&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_code(__e); return *this;}
_LIBCPP_ALWAYS_INLINE
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &system_category();
}
_LIBCPP_ALWAYS_INLINE
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_ALWAYS_INLINE
const error_category& category() const _NOEXCEPT {return *__cat_;}
_LIBCPP_ALWAYS_INLINE
error_condition default_error_condition() const _NOEXCEPT
{return __cat_->default_error_condition(__val_);}
string message() const;
_LIBCPP_ALWAYS_INLINE
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_code
make_error_code(errc __e) _NOEXCEPT
{
return error_code(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_code& __x, const error_code& __y) _NOEXCEPT
{
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) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_code& __x, const error_condition& __y) _NOEXCEPT
{
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) _NOEXCEPT
{
return __y == __x;
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
template <>
struct _LIBCPP_TEMPLATE_VIS hash<error_code>
: public unary_function<error_code, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const error_code& __ec) const _NOEXCEPT
{
return static_cast<size_t>(__ec.value());
}
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<error_condition>
: public unary_function<error_condition, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const error_condition& __ec) const _NOEXCEPT
{
return static_cast<size_t>(__ec.value());
}
};
// system_error
class _LIBCPP_TYPE_VIS 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() _NOEXCEPT;
_LIBCPP_ALWAYS_INLINE
const error_code& code() const _NOEXCEPT {return __ec_;}
private:
static string __init(const error_code&, string);
};
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS
void __throw_system_error(int ev, const char* what_arg);
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_SYSTEM_ERROR