1 //===-- WindowsError.cpp - Support for mapping windows errors to posix-----===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements a mapping from windows errors to posix ones.
11 // The standard doesn't define what the equivalence is from system
12 // errors to generic ones. The one implemented in msvc is too conservative
13 // for llvm, so we do an extra mapping when constructing an error_code
14 // from an windows error. This allows the rest of llvm to simple checks
15 // like "EC == errc::file_exists" and have it work on both posix and
18 //===----------------------------------------------------------------------===//
20 #include "llvm/Support/Errc.h"
21 #include "llvm/Support/WindowsError.h"
23 #include "llvm/Config/llvm-config.h"
30 // I'd rather not double the line count of the following.
31 #define MAP_ERR_TO_COND(x, y) \
33 return make_error_code(errc::y)
35 std::error_code llvm::mapWindowsError(unsigned EV) {
37 MAP_ERR_TO_COND(ERROR_ACCESS_DENIED, permission_denied);
38 MAP_ERR_TO_COND(ERROR_ALREADY_EXISTS, file_exists);
39 MAP_ERR_TO_COND(ERROR_BAD_UNIT, no_such_device);
40 MAP_ERR_TO_COND(ERROR_BUFFER_OVERFLOW, filename_too_long);
41 MAP_ERR_TO_COND(ERROR_BUSY, device_or_resource_busy);
42 MAP_ERR_TO_COND(ERROR_BUSY_DRIVE, device_or_resource_busy);
43 MAP_ERR_TO_COND(ERROR_CANNOT_MAKE, permission_denied);
44 MAP_ERR_TO_COND(ERROR_CANTOPEN, io_error);
45 MAP_ERR_TO_COND(ERROR_CANTREAD, io_error);
46 MAP_ERR_TO_COND(ERROR_CANTWRITE, io_error);
47 MAP_ERR_TO_COND(ERROR_CURRENT_DIRECTORY, permission_denied);
48 MAP_ERR_TO_COND(ERROR_DEV_NOT_EXIST, no_such_device);
49 MAP_ERR_TO_COND(ERROR_DEVICE_IN_USE, device_or_resource_busy);
50 MAP_ERR_TO_COND(ERROR_DIR_NOT_EMPTY, directory_not_empty);
51 MAP_ERR_TO_COND(ERROR_DIRECTORY, invalid_argument);
52 MAP_ERR_TO_COND(ERROR_DISK_FULL, no_space_on_device);
53 MAP_ERR_TO_COND(ERROR_FILE_EXISTS, file_exists);
54 MAP_ERR_TO_COND(ERROR_FILE_NOT_FOUND, no_such_file_or_directory);
55 MAP_ERR_TO_COND(ERROR_HANDLE_DISK_FULL, no_space_on_device);
56 MAP_ERR_TO_COND(ERROR_INVALID_ACCESS, permission_denied);
57 MAP_ERR_TO_COND(ERROR_INVALID_DRIVE, no_such_device);
58 MAP_ERR_TO_COND(ERROR_INVALID_FUNCTION, function_not_supported);
59 MAP_ERR_TO_COND(ERROR_INVALID_HANDLE, invalid_argument);
60 MAP_ERR_TO_COND(ERROR_INVALID_NAME, invalid_argument);
61 MAP_ERR_TO_COND(ERROR_LOCK_VIOLATION, no_lock_available);
62 MAP_ERR_TO_COND(ERROR_LOCKED, no_lock_available);
63 MAP_ERR_TO_COND(ERROR_NEGATIVE_SEEK, invalid_argument);
64 MAP_ERR_TO_COND(ERROR_NOACCESS, permission_denied);
65 MAP_ERR_TO_COND(ERROR_NOT_ENOUGH_MEMORY, not_enough_memory);
66 MAP_ERR_TO_COND(ERROR_NOT_READY, resource_unavailable_try_again);
67 MAP_ERR_TO_COND(ERROR_OPEN_FAILED, io_error);
68 MAP_ERR_TO_COND(ERROR_OPEN_FILES, device_or_resource_busy);
69 MAP_ERR_TO_COND(ERROR_OUTOFMEMORY, not_enough_memory);
70 MAP_ERR_TO_COND(ERROR_PATH_NOT_FOUND, no_such_file_or_directory);
71 MAP_ERR_TO_COND(ERROR_BAD_NETPATH, no_such_file_or_directory);
72 MAP_ERR_TO_COND(ERROR_READ_FAULT, io_error);
73 MAP_ERR_TO_COND(ERROR_RETRY, resource_unavailable_try_again);
74 MAP_ERR_TO_COND(ERROR_SEEK, io_error);
75 MAP_ERR_TO_COND(ERROR_SHARING_VIOLATION, permission_denied);
76 MAP_ERR_TO_COND(ERROR_TOO_MANY_OPEN_FILES, too_many_files_open);
77 MAP_ERR_TO_COND(ERROR_WRITE_FAULT, io_error);
78 MAP_ERR_TO_COND(ERROR_WRITE_PROTECT, permission_denied);
79 MAP_ERR_TO_COND(WSAEACCES, permission_denied);
80 MAP_ERR_TO_COND(WSAEBADF, bad_file_descriptor);
81 MAP_ERR_TO_COND(WSAEFAULT, bad_address);
82 MAP_ERR_TO_COND(WSAEINTR, interrupted);
83 MAP_ERR_TO_COND(WSAEINVAL, invalid_argument);
84 MAP_ERR_TO_COND(WSAEMFILE, too_many_files_open);
85 MAP_ERR_TO_COND(WSAENAMETOOLONG, filename_too_long);
87 return std::error_code(EV, std::system_category());