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llvm-project/libcxx/include/__system_error/errc.h
Mark de Wever 910ec6ff6d
[libc++] Undeprecate POSIX STREAM macros. (#88296) 
LWG3869 Deprecate std::errc constants related to UNIX STREAMS

deprecates the POSIX macros ENODATA, ENOSR, ENOSTR, and ETIME. These
were deprecated in libc++ in
https://github.com/llvm/llvm-project/pull/80542. Based on the post
commit feedback the macro are no longer deprecated. Instead libc++
leaves the deprecation to the provider of errno.h.

---------

Co-authored-by: Hristo Hristov <zingam@outlook.com>
Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
2024-04-13 13:46:34 +02:00

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ERRC
#define _LIBCPP___ERRC
/*
system_error synopsis
namespace std
{
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 // deprecated
no_message, // ENOMSG
no_protocol_option, // ENOPROTOOPT
no_space_on_device, // ENOSPC
no_stream_resources, // ENOSR // deprecated
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 // deprecated
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 // deprecated
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
};
*/
#include <__config>
#include <cerrno>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
// The method of pushing and popping the diagnostics fails for GCC. GCC does
// not recognize the pragma's used to generate deprecated diagnostics for
// macros. So GCC does not need the pushing and popping.
//
// TODO Remove this when the deprecated constants are removed.
//
// Note based on the post-review comments in
// https://github.com/llvm/llvm-project/pull/80542 libc++ no longer deprecates
// the macros. Since C libraries may start to deprecate these POSIX macros the
// deprecation warning avoidance is kept.
#if defined(_LIBCPP_COMPILER_CLANG_BASED)
# define _LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH _LIBCPP_SUPPRESS_DEPRECATED_PUSH
# define _LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP _LIBCPP_SUPPRESS_DEPRECATED_POP
#else
# define _LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH
# define _LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// Some error codes are not present on all platforms, so we provide equivalents
// for them:
// enum class errc
//
// LWG3869 deprecates the UNIX STREAMS macros and enum values.
// This makes the code clumbersome:
// - the enum value is deprecated and should show a diagnostic,
// - the macro is deprecated and should _not_ show a diagnostic in this
// context, and
// - the macro is not always available.
// This leads to the odd pushing and popping of the deprecated
// diagnostic.
_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,
// clang-format off
no_message_available _LIBCPP_DEPRECATED =
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH
#ifdef ENODATA
ENODATA
#else
ENOMSG
#endif
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP
,
// clang-format on
no_message = ENOMSG,
no_protocol_option = ENOPROTOOPT,
no_space_on_device = ENOSPC,
// clang-format off
no_stream_resources _LIBCPP_DEPRECATED =
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH
#ifdef ENOSR
ENOSR
#else
ENOMEM
#endif
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP
,
// clang-format on
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,
// clang-format off
not_a_stream _LIBCPP_DEPRECATED =
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH
#ifdef ENOSTR
ENOSTR
#else
EINVAL
#endif
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP
,
// clang-format on
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,
// clang-format off
stream_timeout _LIBCPP_DEPRECATED =
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_PUSH
#ifdef ETIME
ETIME
#else
ETIMEDOUT
#endif
_LIBCPP_SUPPRESS_DEPRECATED_ERRC_POP
,
// clang-format on
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)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ERRC
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