The new std.process is ready for review

[Steven Schveighoffer]

On Sat, 09 Mar 2013 14:24:49 -0500, Lars T. Kyllingstad  
<public at kyllingen.net> wrote:

> My guess is that select() uses more or less the same mechanism as  
> close() for checking FD validity, and thus would gain us nothing.

Yeah, I was hoping select would flag each "non-valid" file descriptor in  
fd_errors, and do it all in an internal loop in the kernel instead of  
going back and forth between user space and kernel space.

But I don't think it does that.  It just errors the whole function on the  
first invalid descriptor it sees.

Go with your workaround, sounds reasonable.  I agree that 100us pales in  
comparison to launching a program.  Perhaps an option to disable this  
behavior should be available in Config.  It certainly is possible with the  
F_CLOEXEC flag to manually do what needs to be done.

-Steve