Cap the number of FDs used by barback at 32.

pkg/barback/lib/src/utils.dart

 // 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.
 
 library barback.utils;
 
 import 'dart:async';
 import 'dart:io';
 
 /// A pair of values.
@@ skipping 178 matching lines @@
     stream.listen(
         controller.add,
         onError: controller.addError,
         onDone: controller.close);
   }).catchError((e, stackTrace) {
     controller.addError(e, stackTrace);
     controller.close();
   });
   return controller.stream;
 }
-
-// TODO(nweiz): Use a built-in function when issue 14244 is fixed.
-int get maxFileDescriptors {
-  if (_maxFileDescriptors != null) return _maxFileDescriptors;
-
-  // Running "sh -c ulimit -n" via the command line always reports "unlimited",
-  // even when that's clearly false. Instead we fall back on OS-based
-  // heuristics.
-  if (Platform.isWindows) {
-    _maxFileDescriptors = 512;
-    return _maxFileDescriptors;
-  } else if (Platform.isMacOS) {
-    _maxFileDescriptors = 16348;
-    return _maxFileDescriptors;
-  } else {
-    _maxFileDescriptors = 256;
-    return _maxFileDescriptors;
-  }
-}
-int _maxFileDescriptors;