. /include/boost/corosio /native /detail /make_err.hpp
75.00% Lines (6/8) 100.00% Functions (1/1)
[ ] prev/next file n p prev/next uncovered line
TLA Baseline Branch
Line Hits Code Line Hits Code
1   // 1   //
2   // Copyright (c) 2025 Vinnie Falco (vinnie.falco@gmail.com) 2   // Copyright (c) 2025 Vinnie Falco (vinnie.falco@gmail.com)
3   // Copyright (c) 2026 Steve Gerbino 3   // Copyright (c) 2026 Steve Gerbino
4   // Copyright (c) 2026 Michael Vandeberg 4   // Copyright (c) 2026 Michael Vandeberg
5   // 5   //
6   // Distributed under the Boost Software License, Version 1.0. (See accompanying 6   // Distributed under the Boost Software License, Version 1.0. (See accompanying
7   // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 7   // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
8   // 8   //
9   // Official repository: https://github.com/cppalliance/corosio 9   // Official repository: https://github.com/cppalliance/corosio
10   // 10   //
11   11  
12   #ifndef BOOST_COROSIO_NATIVE_DETAIL_MAKE_ERR_HPP 12   #ifndef BOOST_COROSIO_NATIVE_DETAIL_MAKE_ERR_HPP
13   #define BOOST_COROSIO_NATIVE_DETAIL_MAKE_ERR_HPP 13   #define BOOST_COROSIO_NATIVE_DETAIL_MAKE_ERR_HPP
14   14  
15   #include <boost/corosio/detail/config.hpp> 15   #include <boost/corosio/detail/config.hpp>
16   #include <boost/corosio/detail/platform.hpp> 16   #include <boost/corosio/detail/platform.hpp>
17   #include <boost/capy/error.hpp> 17   #include <boost/capy/error.hpp>
18   #include <system_error> 18   #include <system_error>
19   19  
20   #if BOOST_COROSIO_POSIX 20   #if BOOST_COROSIO_POSIX
21   #include <errno.h> 21   #include <errno.h>
22   #else 22   #else
23   #ifndef WIN32_LEAN_AND_MEAN 23   #ifndef WIN32_LEAN_AND_MEAN
24   #define WIN32_LEAN_AND_MEAN 24   #define WIN32_LEAN_AND_MEAN
25   #endif 25   #endif
26   #include <Windows.h> 26   #include <Windows.h>
27   #endif 27   #endif
28   28  
29   namespace boost::corosio::detail { 29   namespace boost::corosio::detail {
30   30  
31   #if BOOST_COROSIO_POSIX 31   #if BOOST_COROSIO_POSIX
32   32  
33   /** Convert a POSIX errno value to std::error_code. 33   /** Convert a POSIX errno value to std::error_code.
34   34  
35   Maps ECANCELED to capy::error::canceled. 35   Maps ECANCELED to capy::error::canceled.
36   36  
37   @param errn The errno value. 37   @param errn The errno value.
38   @return The corresponding std::error_code. 38   @return The corresponding std::error_code.
39   */ 39   */
40   inline std::error_code 40   inline std::error_code
HITCBC 41   97 make_err(int errn) noexcept 41   136 make_err(int errn) noexcept
42   { 42   {
HITCBC 43   97 if (errn == 0) 43   136 if (errn == 0)
MISUBC 44   ✗ return {}; 44   ✗ return {};
45   45  
HITCBC 46   97 if (errn == ECANCELED) 46   136 if (errn == ECANCELED)
MISUBC 47   ✗ return capy::error::canceled; 47   ✗ return capy::error::canceled;
48   48  
  49 + // Part of the portable wait contract; system_category's condition
  50 + // mapping varies by C++ runtime.
HITGNC   51 + 136 if (errn == ENOTSUP)
HITGNC   52 + 6 return std::make_error_code(std::errc::operation_not_supported);
  53 +
HITCBC 49   97 return std::error_code(errn, std::system_category()); 54   130 return std::error_code(errn, std::system_category());
50   } 55   }
51   56  
52   #else 57   #else
53   58  
54   /** Convert a Windows error code to std::error_code. 59   /** Convert a Windows error code to std::error_code.
55   60  
56   Maps ERROR_OPERATION_ABORTED and ERROR_CANCELLED to 61   Maps ERROR_OPERATION_ABORTED and ERROR_CANCELLED to
57   capy::error::canceled, and ERROR_HANDLE_EOF to capy::error::eof. 62   capy::error::canceled, and ERROR_HANDLE_EOF to capy::error::eof.
58   Every other code passes through std::system_category(). 63   Every other code passes through std::system_category().
59   64  
60   ERROR_NETNAME_DELETED (64) is deliberately not mapped here: IOCP 65   ERROR_NETNAME_DELETED (64) is deliberately not mapped here: IOCP
61   delivers it both for a local closesocket() that cancels pending I/O 66   delivers it both for a local closesocket() that cancels pending I/O
62   and for a remote RST, so it can only be disambiguated per operation 67   and for a remote RST, so it can only be disambiguated per operation
63   kind at the IOCP decode sites (see iocp_make_err in win_overlapped_op). 68   kind at the IOCP decode sites (see iocp_make_err in win_overlapped_op).
64   69  
65   @param dwError The Windows error code (DWORD). 70   @param dwError The Windows error code (DWORD).
66   @return The corresponding std::error_code. 71   @return The corresponding std::error_code.
67   */ 72   */
68   inline std::error_code 73   inline std::error_code
69   make_err(unsigned long dwError) noexcept 74   make_err(unsigned long dwError) noexcept
70   { 75   {
71   if (dwError == 0) 76   if (dwError == 0)
72   return {}; 77   return {};
73   78  
74   if (dwError == ERROR_OPERATION_ABORTED || dwError == ERROR_CANCELLED) 79   if (dwError == ERROR_OPERATION_ABORTED || dwError == ERROR_CANCELLED)
75   return capy::error::canceled; 80   return capy::error::canceled;
76   81  
77   if (dwError == ERROR_HANDLE_EOF) 82   if (dwError == ERROR_HANDLE_EOF)
78   return capy::error::eof; 83   return capy::error::eof;
  84 +
  85 + // Part of the portable wait and adoption contracts;
  86 + // system_category's condition mapping for WSA codes varies by
  87 + // toolchain.
  88 + if (dwError == WSAEOPNOTSUPP)
  89 + return std::make_error_code(std::errc::operation_not_supported);
  90 + if (dwError == WSAENOTSOCK)
  91 + return std::make_error_code(std::errc::not_a_socket);
  92 + if (dwError == WSAEAFNOSUPPORT)
  93 + return std::make_error_code(
  94 + std::errc::address_family_not_supported);
  95 + if (dwError == WSAEPROTOTYPE)
  96 + return std::make_error_code(std::errc::wrong_protocol_type);
79   97  
80   return std::error_code(static_cast<int>(dwError), std::system_category()); 98   return std::error_code(static_cast<int>(dwError), std::system_category());
81   } 99   }
82   100  
83   #endif 101   #endif
84   102  
85   } // namespace boost::corosio::detail 103   } // namespace boost::corosio::detail
86   104  
87   #endif 105   #endif