Should be fixed in 0.2.3. Let me know.
Jim
On Jun 14, 2013, at 3:24 PM, Jim Ursetto <zbignie...@gmail.com> wrote:
> Hi,
>
> It's a bug in the socket egg; nonblocking mode is only set during a
> socket-connect or socket-accept, which won't be called for UDP.
>
> Temporary workaround: (use posix) and then, after creating the socket, do
> either:
>
> (##sys#file-nonblocking! (socket-fileno *socket*))
>
> or equivalently
>
> (file-control fcntl/setfl (socket-fileno *socket*)
> (bitwise-ior (file-control fcntl/getfl (socket-fileno *socket*))
> open/nonblock))
>
> Neither workaround will work on Windows.
>
> Permanent fix: We should probably make all sockets nonblocking at creation
> time instead, since our machinery assumes nonblocking sockets. We could
> expose the set-nonblocking operation to the user, but since TCP is always
> nonblocking, doing this only for UDP would be strange. Thoughts?
>
> Jim
>
> On Jun 14, 2013, at 11:01 AM, Kristian Lein-Mathisen <kristianl...@gmail.com>
> wrote:
>
>>
>> Hi Chickeners!
>>
>> I have come across a problem with multiple srfi-18 threads when tryping to
>> listen to UDP sockets:
>>
>> (use socket)
>> (set! *socket* (socket af/inet sock/dgram ))
>> (set! (so-reuse-address? *socket*) #t)
>> (socket-bind *socket* (inet-address "0.0.0.0" 5055))
>> ;; (socket-receive ..) here blocks the prints below
>> ;; after 1 s (about 10 hello's)
>> (thread-start! (lambda ()
>> (thread-sleep! 1)
>> (print "receiving ...")
>> (print (socket-receive *socket* 1024))
>> (print "done")))
>>
>> (let loop ()
>> (print "hello from main-thread!")
>> (thread-sleep! .1)
>> (loop))
>>
>> ;; the hello's from the main thread continue after sending a udp packet:
>> ;; $ echo test `date` | socat - UDP-DATAGRAM:127.0.0.1:5055,broadcast
>>
>>
>> The documentation for socket clearly states that socket-receive should not
>> block:
>> This call will block until data is available, but other threads can proceed.
>>
>> What is wrong with my socket fd?
>>
>> K.
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>
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