Re: [bug-gnulib] poll(2) emulation doesn't work well on a file descriptor

[Paolo Bonzini]

Bruno Haible wrote:
Daiki Ueno wrote:
  
When I tried a tiny program which uses gnulib's poll(2) emulation on
MacOS X 10.4, I found a bug.  gnulib's poll(2) uses recv(2) with
MSG_PEEK to support POLLHUP.  However, recv(2) is only applicable to a
socket, not to a file descriptor.
    
It's much worse than that.  On some other kinds of descriptor, recv 
works, but ignores MSG_PEEK!

I have a similar patch using FIONREAD instead of recv for Mac OS only, 
but the bottom line is that you cannot rely on POLLHUP for Mac OS :-(  
I'll polish the patch and send it soon.

Paolo