Error while reading from a pipe with an InputStream

[DartBot]

This issue was originally filed by [email protected]

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Problem is that FileInputStream assumes the file is seekable.

void main() {

  File stdinFile = new File('/proc/self/fd/0');
  stdinFile.open();
  InputStream stdin = stdinFile.openInputStream();

  void readMore() {
    print(stdin.read(1));
  }

  stdin.dataHandler = readMore;
  readMore();
}

Produces:
An unhandled exception has been thrown
FileIOException: length failed
 0. Function: '[email protected]' url: './dart:builtin-lib' line:1382 col:7
 1. Function: '[email protected]' url: './dart:builtin-lib' line:642 col:28
 2. Function: '[email protected]' url: './dart:builtin-lib' line:611 col:32
 3. Function: 'readMore' url: '/tmp/stdin.dart' line:7 col:21
 4. Function: 'main' url: '/tmp/stdin.dart' line:11 col:11

[DartBot]

This comment was originally written by [email protected]

[iposva-google]

Set owner to @madsager.
Added Accepted label.

[madsager]

Removed Area-VM label.
Added Area-IO label.

[madsager]

Added this to the Later milestone.

[andersjohnsen]

Set owner to @Skabet.

[andersjohnsen]

Fix landed in r20768.

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Removed this from the Later milestone.
Added this to the M4 milestone.
Added Fixed label.

[kevmoo]

Removed Area-IO label.
Added Area-Library, Library-IO labels.