| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include <errno.h> |
| |
| #include "bin/utils.h" |
| |
| static void FormatMessageIntoBuffer(DWORD code, |
| char* buffer, |
| int buffer_length) { |
| DWORD message_size = |
| FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, |
| NULL, |
| code, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| buffer, |
| buffer_length, |
| NULL); |
| if (message_size == 0) { |
| if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) { |
| fprintf(stderr, "FormatMessage failed %d\n", GetLastError()); |
| } |
| snprintf(buffer, buffer_length, "OS Error %d", code); |
| } |
| buffer[buffer_length - 1] = '\0'; |
| } |
| |
| |
| OSError::OSError() : sub_system_(kSystem), code_(0), message_(NULL) { |
| set_code(GetLastError()); |
| |
| static const int kMaxMessageLength = 256; |
| char message[kMaxMessageLength]; |
| FormatMessageIntoBuffer(code_, message, kMaxMessageLength); |
| SetMessage(message); |
| } |
| |
| void OSError::SetCodeAndMessage(SubSystem sub_system, int code) { |
| set_sub_system(sub_system); |
| set_code(code); |
| |
| static const int kMaxMessageLength = 256; |
| char message[kMaxMessageLength]; |
| FormatMessageIntoBuffer(code_, message, kMaxMessageLength); |
| SetMessage(message); |
| } |