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1 | // error_handling.hpp --------------------------------------------------------------------// |
2 | ||
3 | // Copyright 2002-2009, 2014 Beman Dawes | |
4 | // Copyright 2019 Andrey Semashev | |
5 | ||
6 | // Distributed under the Boost Software License, Version 1.0. | |
7 | // See http://www.boost.org/LICENSE_1_0.txt | |
8 | ||
9 | // See library home page at http://www.boost.org/libs/filesystem | |
10 | ||
11 | //--------------------------------------------------------------------------------------// | |
12 | ||
13 | #ifndef BOOST_FILESYSTEM3_SRC_ERROR_HANDLING_HPP_ | |
14 | #define BOOST_FILESYSTEM3_SRC_ERROR_HANDLING_HPP_ | |
15 | ||
16 | #include <cerrno> | |
17 | #include <boost/system/error_code.hpp> | |
18 | #include <boost/filesystem/config.hpp> | |
19 | #include <boost/filesystem/exception.hpp> | |
20 | ||
21 | #if defined(BOOST_WINDOWS_API) | |
22 | #include <boost/winapi/basic_types.hpp> | |
23 | #include <boost/winapi/get_last_error.hpp> | |
24 | #include <boost/winapi/error_codes.hpp> | |
25 | #endif | |
26 | ||
27 | namespace boost { | |
28 | namespace filesystem { | |
29 | ||
30 | #if defined(BOOST_POSIX_API) | |
31 | ||
32 | typedef int err_t; | |
33 | ||
34 | // POSIX uses a 0 return to indicate success | |
35 | #define BOOST_ERRNO errno | |
36 | ||
20effc67 | 37 | #define BOOST_ERROR_FILE_NOT_FOUND ENOENT |
92f5a8d4 | 38 | #define BOOST_ERROR_ALREADY_EXISTS EEXIST |
20effc67 | 39 | #define BOOST_ERROR_NOT_SUPPORTED ENOSYS |
92f5a8d4 TL |
40 | |
41 | #else | |
42 | ||
43 | typedef boost::winapi::DWORD_ err_t; | |
44 | ||
45 | // Windows uses a non-0 return to indicate success | |
46 | #define BOOST_ERRNO boost::winapi::GetLastError() | |
47 | ||
20effc67 | 48 | #define BOOST_ERROR_FILE_NOT_FOUND boost::winapi::ERROR_FILE_NOT_FOUND_ |
92f5a8d4 TL |
49 | #define BOOST_ERROR_ALREADY_EXISTS boost::winapi::ERROR_ALREADY_EXISTS_ |
50 | #define BOOST_ERROR_NOT_SUPPORTED boost::winapi::ERROR_NOT_SUPPORTED_ | |
51 | ||
52 | #endif | |
53 | ||
54 | // error handling helpers ----------------------------------------------------------// | |
55 | ||
56 | // Implemented in exception.cpp | |
57 | void emit_error(err_t error_num, system::error_code* ec, const char* message); | |
58 | void emit_error(err_t error_num, const path& p, system::error_code* ec, const char* message); | |
59 | void emit_error(err_t error_num, const path& p1, const path& p2, system::error_code* ec, const char* message); | |
60 | ||
61 | inline bool error(err_t error_num, system::error_code* ec, const char* message) | |
62 | { | |
63 | if (BOOST_LIKELY(!error_num)) | |
64 | { | |
65 | if (ec) | |
66 | ec->clear(); | |
67 | return false; | |
68 | } | |
69 | else | |
70 | { // error | |
71 | filesystem::emit_error(error_num, ec, message); | |
72 | return true; | |
73 | } | |
74 | } | |
75 | ||
76 | inline bool error(err_t error_num, const path& p, system::error_code* ec, const char* message) | |
77 | { | |
78 | if (BOOST_LIKELY(!error_num)) | |
79 | { | |
80 | if (ec) | |
81 | ec->clear(); | |
82 | return false; | |
83 | } | |
84 | else | |
85 | { // error | |
86 | filesystem::emit_error(error_num, p, ec, message); | |
87 | return true; | |
88 | } | |
89 | } | |
90 | ||
91 | inline bool error(err_t error_num, const path& p1, const path& p2, system::error_code* ec, const char* message) | |
92 | { | |
93 | if (BOOST_LIKELY(!error_num)) | |
94 | { | |
95 | if (ec) | |
96 | ec->clear(); | |
97 | return false; | |
98 | } | |
99 | else | |
100 | { // error | |
101 | filesystem::emit_error(error_num, p1, p2, ec, message); | |
102 | return true; | |
103 | } | |
104 | } | |
105 | ||
106 | } // namespace filesystem | |
107 | } // namespace boost | |
108 | ||
109 | #endif // BOOST_FILESYSTEM3_SRC_ERROR_HANDLING_HPP_ |