运行fork（2）从Windows与Cygwin。可能？
我想使用一个名为shotgun的ruby gem，需要fork（2）命令，我发现它是一个Linux命令，可能在Cygwin中可用。是否可以通过Windows命令shell使其可用？
I am trying to use a Ruby gem called shotgun that requires fork(2) command which I discovered is aa Linux command, and might be available in Cygwin. Is it possible to make it available through Windows command shell?
fork（2）是cygwin下的kludgey，过程模型不容易允许它发生。 Cygwin可能允许它的产生使用它，但是你会遭受严重的性能打击，因为Cygwin必须手动模拟一切 - 包括复制可执行数据，复制打开的句柄等。
fork(2) is kludgey under Cygwin, as the Windows process model does not easily allow it to happen. Cygwin may allow its spawn to use it, but you're going to suffer a serious performance hit as Cygwin has to emulate everything by hand -- including copying the executable data, copying the open handles, etc.
根据猎枪使用 fork（2）的多少，这种模拟可能会很痛苦，或者可能相对较小。
Depending on how much shotgun uses fork(2), this emulation could be painful or it could be relatively minor.
以下是GameDev.net上的好主题讨论在Win32上缺少 fork 工具。他们提出了一些我没有耐心或平台无法进行调查，但肯定听起来有趣，危险和爆炸性的同时：
Here's a good thread on GameDev.net discussing the lack of a fork facility on Win32. They bring up something which I don't have the patience or platform accessibility to investigate, but certainly sounds fun, dangerous, and explosive all at the same time:
所以，你需要绕过Win32并调用本机API（{Nt | Zw} CreateProcess）。本书Windows Nt / 2000本机Api参考有一个例子分叉Win32进程。这可能是你需要的。
So, you need to bypass Win32 and call the native API ({Nt|Zw}CreateProcess). The book "Windows Nt/2000 Native Api Reference" has an example "Forking a Win32 Process". This may be what you need.
我很感兴趣，但我怀疑Cygwin使用它。它可能在那里，重申我的回答你的问题 - 很多Unix应用程序依赖 fork ，Cygwin可能使它可用。只是不要指望奇迹，你必须让Ruby意识到Cygwin，通过重新编译它包括它的仿真层。
I'm intrigued, but I doubt Cygwin uses it. It's probably there, to reiterate my answer to your question -- a lot of Unix apps rely on fork, and Cygwin likely makes it available. Just don't expect miracles, and you'll have to make Ruby aware of Cygwin by recompiling it to include its emulation layer.