cosmopolitan/third_party/libcxx/__system_error/errc.h

// -*- 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){
  success = 0,
    address_family_not_supported = 65536, //       = 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,
          no_message, //         = ENOMSG,
          no_protocol_option, // = ENOPROTOOPT,
          no_space_on_device, // = ENOSPC,
        no_stream_resources,
          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,
          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,
          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};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(errc)

errc __err_to_errc(int) noexcept;
int __errc_to_err(errc) noexcept;

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___ERRC