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RE: poll() emulation in git

From: Joachim Schmitz
Subject: RE: poll() emulation in git
Date: Wed, 5 Sep 2012 14:57:31 +0200

> From: Paolo Bonzini [mailto:address@hidden On Behalf Of Paolo Bonzini
> Sent: Wednesday, September 05, 2012 2:05 PM
> To: Joachim Schmitz
> Cc: 'Junio C Hamano'; address@hidden; 'Erik Faye-Lund'; address@hidden
> Subject: Re: poll() emulation in git
> Il 05/09/2012 13:24, Joachim Schmitz ha scritto:
> > However: this poll implementation, while compiling OK, doesn't work 
> > properly.
> > Because it uses recv(...,MSG_PEEK), it works on sockets only (returns 
> > ENOTSOCK on anything else), while the real poll() works on
> > kind if file descriptors, at least that is my understanding.
> Actually recv(...,MSG_PEEK) on most Unix variants works on non-sockets
> too.  The trick is taken from GNU Pth in turn.
> > Here on HP NonStop, when being connected via an non-interactive SSH, we get 
> > a set of pipes (stdin, stdout, stderr) instead of a
> > socket to talk to, so the poll() just hangs/loops.
> Does your system have a working FIONREAD ioctl for pipes?

It does have FIONREAD ioctl. Whether it works properly is to be determined...
I'll test if you could show me how?

Bye, Jojo

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