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1//===- llvm/Support/Win32/system_error.inc - Windows error_code --*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file provides the Windows specific implementation of the error_code
11// and error_condition classes.
12//
13//===----------------------------------------------------------------------===//
14
15//===----------------------------------------------------------------------===//
16//=== WARNING: Implementation here must contain only generic Windows code that
17//===          is guaranteed to work on *all* Windows variants.
18//===----------------------------------------------------------------------===//
19
20#include <windows.h>
21#include <winerror.h>
22
23using namespace llvm;
24
25std::string
26_system_error_category::message(int ev) const {
27  LPVOID lpMsgBuf = 0;
28  DWORD retval = ::FormatMessageA(
29    FORMAT_MESSAGE_ALLOCATE_BUFFER |
30    FORMAT_MESSAGE_FROM_SYSTEM |
31    FORMAT_MESSAGE_IGNORE_INSERTS,
32    NULL,
33    ev,
34    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
35    (LPSTR) &lpMsgBuf,
36    0,
37    NULL);
38  if (retval == 0) {
39    ::LocalFree(lpMsgBuf);
40    return std::string("Unknown error");
41  }
42
43  std::string str( static_cast<LPCSTR>(lpMsgBuf) );
44  ::LocalFree(lpMsgBuf);
45
46  while (str.size()
47     && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r'))
48    str.erase( str.size()-1 );
49  if (str.size() && str[str.size()-1] == '.')
50    str.erase( str.size()-1 );
51  return str;
52}
53
54// I'd rather not double the line count of the following.
55#define MAP_ERR_TO_COND(x, y) case x: return make_error_condition(errc::y)
56
57error_condition
58_system_error_category::default_error_condition(int ev) const {
59  switch (ev) {
60  MAP_ERR_TO_COND(0, success);
61  // Windows system -> posix_errno decode table  ---------------------------//
62  // see WinError.h comments for descriptions of errors
63  MAP_ERR_TO_COND(ERROR_ACCESS_DENIED,       permission_denied);
64  MAP_ERR_TO_COND(ERROR_ALREADY_EXISTS,      file_exists);
65  MAP_ERR_TO_COND(ERROR_BAD_UNIT,            no_such_device);
66  MAP_ERR_TO_COND(ERROR_BUFFER_OVERFLOW,     filename_too_long);
67  MAP_ERR_TO_COND(ERROR_BUSY,                device_or_resource_busy);
68  MAP_ERR_TO_COND(ERROR_BUSY_DRIVE,          device_or_resource_busy);
69  MAP_ERR_TO_COND(ERROR_CANNOT_MAKE,         permission_denied);
70  MAP_ERR_TO_COND(ERROR_CANTOPEN,            io_error);
71  MAP_ERR_TO_COND(ERROR_CANTREAD,            io_error);
72  MAP_ERR_TO_COND(ERROR_CANTWRITE,           io_error);
73  MAP_ERR_TO_COND(ERROR_CURRENT_DIRECTORY,   permission_denied);
74  MAP_ERR_TO_COND(ERROR_DEV_NOT_EXIST,       no_such_device);
75  MAP_ERR_TO_COND(ERROR_DEVICE_IN_USE,       device_or_resource_busy);
76  MAP_ERR_TO_COND(ERROR_DIR_NOT_EMPTY,       directory_not_empty);
77  MAP_ERR_TO_COND(ERROR_DIRECTORY,           invalid_argument);
78  MAP_ERR_TO_COND(ERROR_DISK_FULL,           no_space_on_device);
79  MAP_ERR_TO_COND(ERROR_FILE_EXISTS,         file_exists);
80  MAP_ERR_TO_COND(ERROR_FILE_NOT_FOUND,      no_such_file_or_directory);
81  MAP_ERR_TO_COND(ERROR_HANDLE_DISK_FULL,    no_space_on_device);
82  MAP_ERR_TO_COND(ERROR_HANDLE_EOF,          value_too_large);
83  MAP_ERR_TO_COND(ERROR_INVALID_ACCESS,      permission_denied);
84  MAP_ERR_TO_COND(ERROR_INVALID_DRIVE,       no_such_device);
85  MAP_ERR_TO_COND(ERROR_INVALID_FUNCTION,    function_not_supported);
86  MAP_ERR_TO_COND(ERROR_INVALID_HANDLE,      invalid_argument);
87  MAP_ERR_TO_COND(ERROR_INVALID_NAME,        invalid_argument);
88  MAP_ERR_TO_COND(ERROR_LOCK_VIOLATION,      no_lock_available);
89  MAP_ERR_TO_COND(ERROR_LOCKED,              no_lock_available);
90  MAP_ERR_TO_COND(ERROR_NEGATIVE_SEEK,       invalid_argument);
91  MAP_ERR_TO_COND(ERROR_NOACCESS,            permission_denied);
92  MAP_ERR_TO_COND(ERROR_NOT_ENOUGH_MEMORY,   not_enough_memory);
93  MAP_ERR_TO_COND(ERROR_NOT_READY,           resource_unavailable_try_again);
94  MAP_ERR_TO_COND(ERROR_NOT_SAME_DEVICE,     cross_device_link);
95  MAP_ERR_TO_COND(ERROR_OPEN_FAILED,         io_error);
96  MAP_ERR_TO_COND(ERROR_OPEN_FILES,          device_or_resource_busy);
97  MAP_ERR_TO_COND(ERROR_OPERATION_ABORTED,   operation_canceled);
98  MAP_ERR_TO_COND(ERROR_OUTOFMEMORY,         not_enough_memory);
99  MAP_ERR_TO_COND(ERROR_PATH_NOT_FOUND,      no_such_file_or_directory);
100  MAP_ERR_TO_COND(ERROR_BAD_NETPATH,         no_such_file_or_directory);
101  MAP_ERR_TO_COND(ERROR_READ_FAULT,          io_error);
102  MAP_ERR_TO_COND(ERROR_RETRY,               resource_unavailable_try_again);
103  MAP_ERR_TO_COND(ERROR_SEEK,                io_error);
104  MAP_ERR_TO_COND(ERROR_SHARING_VIOLATION,   permission_denied);
105  MAP_ERR_TO_COND(ERROR_TOO_MANY_OPEN_FILES, too_many_files_open);
106  MAP_ERR_TO_COND(ERROR_WRITE_FAULT,         io_error);
107  MAP_ERR_TO_COND(ERROR_WRITE_PROTECT,       permission_denied);
108  MAP_ERR_TO_COND(ERROR_SEM_TIMEOUT,         timed_out);
109  MAP_ERR_TO_COND(WSAEACCES,                 permission_denied);
110  MAP_ERR_TO_COND(WSAEADDRINUSE,             address_in_use);
111  MAP_ERR_TO_COND(WSAEADDRNOTAVAIL,          address_not_available);
112  MAP_ERR_TO_COND(WSAEAFNOSUPPORT,           address_family_not_supported);
113  MAP_ERR_TO_COND(WSAEALREADY,               connection_already_in_progress);
114  MAP_ERR_TO_COND(WSAEBADF,                  bad_file_descriptor);
115  MAP_ERR_TO_COND(WSAECONNABORTED,           connection_aborted);
116  MAP_ERR_TO_COND(WSAECONNREFUSED,           connection_refused);
117  MAP_ERR_TO_COND(WSAECONNRESET,             connection_reset);
118  MAP_ERR_TO_COND(WSAEDESTADDRREQ,           destination_address_required);
119  MAP_ERR_TO_COND(WSAEFAULT,                 bad_address);
120  MAP_ERR_TO_COND(WSAEHOSTUNREACH,           host_unreachable);
121  MAP_ERR_TO_COND(WSAEINPROGRESS,            operation_in_progress);
122  MAP_ERR_TO_COND(WSAEINTR,                  interrupted);
123  MAP_ERR_TO_COND(WSAEINVAL,                 invalid_argument);
124  MAP_ERR_TO_COND(WSAEISCONN,                already_connected);
125  MAP_ERR_TO_COND(WSAEMFILE,                 too_many_files_open);
126  MAP_ERR_TO_COND(WSAEMSGSIZE,               message_size);
127  MAP_ERR_TO_COND(WSAENAMETOOLONG,           filename_too_long);
128  MAP_ERR_TO_COND(WSAENETDOWN,               network_down);
129  MAP_ERR_TO_COND(WSAENETRESET,              network_reset);
130  MAP_ERR_TO_COND(WSAENETUNREACH,            network_unreachable);
131  MAP_ERR_TO_COND(WSAENOBUFS,                no_buffer_space);
132  MAP_ERR_TO_COND(WSAENOPROTOOPT,            no_protocol_option);
133  MAP_ERR_TO_COND(WSAENOTCONN,               not_connected);
134  MAP_ERR_TO_COND(WSAENOTSOCK,               not_a_socket);
135  MAP_ERR_TO_COND(WSAEOPNOTSUPP,             operation_not_supported);
136  MAP_ERR_TO_COND(WSAEPROTONOSUPPORT,        protocol_not_supported);
137  MAP_ERR_TO_COND(WSAEPROTOTYPE,             wrong_protocol_type);
138  MAP_ERR_TO_COND(WSAETIMEDOUT,              timed_out);
139  MAP_ERR_TO_COND(WSAEWOULDBLOCK,            operation_would_block);
140  default: return error_condition(ev, system_category());
141  }
142}
143