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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include <errno.h> | 5 #include <errno.h> |
6 | 6 |
7 #include "bin/utils.h" | 7 #include "bin/utils.h" |
8 | 8 |
| 9 static void FormatMessageIntoBuffer(DWORD code, |
| 10 char* buffer, |
| 11 int buffer_length) { |
| 12 DWORD message_size = |
| 13 FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 14 NULL, |
| 15 code, |
| 16 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| 17 buffer, |
| 18 buffer_length, |
| 19 NULL); |
| 20 if (message_size == 0) { |
| 21 if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) { |
| 22 fprintf(stderr, "FormatMessage failed %d\n", GetLastError()); |
| 23 } |
| 24 snprintf(buffer, buffer_length, "OS Error %d", code); |
| 25 } |
| 26 buffer[buffer_length - 1] = '\0'; |
| 27 } |
| 28 |
| 29 |
9 OSError::OSError() : sub_system_(kSystem), code_(0), message_(NULL) { | 30 OSError::OSError() : sub_system_(kSystem), code_(0), message_(NULL) { |
10 set_code(GetLastError()); | 31 set_code(GetLastError()); |
11 | 32 |
12 static const int kMaxMessageLength = 256; | 33 static const int kMaxMessageLength = 256; |
13 char message[kMaxMessageLength]; | 34 char message[kMaxMessageLength]; |
14 DWORD message_size = | 35 FormatMessageIntoBuffer(code_, message, kMaxMessageLength); |
15 FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
16 NULL, | |
17 code_, | |
18 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
19 message, | |
20 kMaxMessageLength, | |
21 NULL); | |
22 if (message_size == 0) { | |
23 if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) { | |
24 fprintf(stderr, "FormatMessage failed %d\n", GetLastError()); | |
25 } | |
26 snprintf(message, kMaxMessageLength, "OS Error %d", code_); | |
27 } | |
28 message[kMaxMessageLength - 1] = '\0'; | |
29 | |
30 SetMessage(message); | 36 SetMessage(message); |
31 } | 37 } |
| 38 |
| 39 void OSError::SetCodeAndMessage(SubSystem sub_system, int code) { |
| 40 set_sub_system(sub_system); |
| 41 set_code(code); |
| 42 |
| 43 static const int kMaxMessageLength = 256; |
| 44 char message[kMaxMessageLength]; |
| 45 FormatMessageIntoBuffer(code_, message, kMaxMessageLength); |
| 46 SetMessage(message); |
| 47 } |
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