[iolib-devel] send-to question

[Stelian Ionescu]

On Sun, 2010-03-14 at 01:23 -0600, Peter Keller wrote:
> Hello,
> 
> Under what situations does IOLib's send-to fail on a TCP socket and how
> does it fail?
> 
> An example for a TCP receive-from is when it tries to read from a closed
> connection it returns 0 bytes--as oposed to read-line from a closed
> connection which results in a signaled END-OF-FILE condition.
> 
> write-line will produce a hangup on a closed connection remotely, but
> what will send-to do on a closed connection remotely? Return 0? Signal
> a HANGUP? In practice it seems to "write" however many bytes I asked it
> to the nonexistent client and return the number of bytes written. I was
> expecting a signaled HANGUP instead. What's the deal?

You should get a condition, namely ISYS:EPIPE, but apparently Linux
doesn't return EPIPE with loopback connections

-- 
Stelian Ionescu a.k.a. fe[nl]ix
Quidquid latine dictum sit, altum videtur.
http://common-lisp.net/project/iolib
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