| // Copyright (c) 2013, 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. |
| |
| part of dart.io; |
| |
| const int _STDIO_HANDLE_TYPE_TERMINAL = 0; |
| const int _STDIO_HANDLE_TYPE_PIPE = 1; |
| const int _STDIO_HANDLE_TYPE_FILE = 2; |
| const int _STDIO_HANDLE_TYPE_SOCKET = 3; |
| const int _STDIO_HANDLE_TYPE_OTHER = 4; |
| |
| |
| class StdioType { |
| static const StdioType TERMINAL = const StdioType._("terminal"); |
| static const StdioType PIPE = const StdioType._("pipe"); |
| static const StdioType FILE = const StdioType._("file"); |
| static const StdioType OTHER = const StdioType._("other"); |
| final String name; |
| const StdioType._(String this.name); |
| String toString() => "StdioType: $name"; |
| } |
| |
| |
| Stream<List<int>> _stdin; |
| IOSink _stdout; |
| IOSink _stderr; |
| |
| |
| Stream<List<int>> get stdin { |
| if (_stdin == null) { |
| _stdin = _StdIOUtils._getStdioInputStream(); |
| } |
| return _stdin; |
| } |
| |
| |
| IOSink get stdout { |
| if (_stdout == null) { |
| _stdout = _StdIOUtils._getStdioOutputStream(1); |
| } |
| return _stdout; |
| } |
| |
| |
| IOSink get stderr { |
| if (_stderr == null) { |
| _stderr = _StdIOUtils._getStdioOutputStream(2); |
| } |
| return _stderr; |
| } |
| |
| |
| StdioType stdioType(object) { |
| if (object is _FileStream) { |
| return StdioType.FILE; |
| } |
| if (object is Socket) { |
| switch (_StdIOUtils._socketType(object._nativeSocket)) { |
| case _STDIO_HANDLE_TYPE_TERMINAL: return StdioType.TERMINAL; |
| case _STDIO_HANDLE_TYPE_PIPE: return StdioType.PIPE; |
| case _STDIO_HANDLE_TYPE_FILE: return StdioType.FILE; |
| } |
| } |
| if (object is IOSink) { |
| try { |
| if (object._target is _FileStreamConsumer) { |
| return StdioType.FILE; |
| } |
| } catch (e) { |
| // Only the interface implemented, _sink not available. |
| } |
| } |
| return StdioType.OTHER; |
| } |
| |
| |
| class _StdIOUtils { |
| external static IOSink _getStdioOutputStream(int fd); |
| external static Stream<List<int>> _getStdioInputStream(); |
| external static int _socketType(nativeSocket); |
| } |