readln() blocks file operations on windows

[Martin Drasar via Digitalmars-d]

Hi,

consider this code:

import std.stdio;
import std.concurrency;
import core.thread;

void tryOpen()
{
  Thread.sleep(2.seconds);
  try {
    auto f = File("nonexistent");
  }
  catch (Exception e) {
    writeln("Could not open a file");
  }
}

void main()
{
  spawn(&tryOpen);
  readln();
}


On Linux, it works as expected, showing a "Could not open a file" after
two or so seconds. On windows, however, the file opening gets blocked
until a line is read from stdin.

Is this a feature or a bug? If it is a feature, it certainly is not
documented.

Cheers,
Martin