[Haskell-cafe] Simple binary-protocol through network test
Yves Parès
limestrael at gmail.com
Wed Apr 7 13:50:43 EDT 2010
I'm wondering, would it be a problem of chunk size when using L.hGetContents?
Since the data to read is shorter than the default chunk size (32k), would
it cause problems?
Yves Parès wrote:
>
> Okay, so I turned off every buffering using hSetBuffering hdl NoBuffering
> on both Client and Server, but that doesn't fix it...
> BTW, I tried to do the same without your package, i.e. simply through Lazy
> ByteString and Binary, but it doesn't work either, I come up against the
> same issue.
>
>
> Gregory Crosswhite-2 wrote:
>>
>> Hmm, I am guessing it is more likely that the problem is that the I/O
>> system changed from 6.10.4 to 6.12.1 somehow in a way that broke the
>> package. You could try turning off all buffering in the handle using
>> hSetBuffering and seeing if that works.
>>
>> Cheers,
>> Greg
>>
>> On Apr 6, 2010, at 3:44 PM, Yves Parès wrote:
>>
>>>
>>> Weird...
>>>
>>> I use GHC 6.12.1, and I run Ubuntu 9.10 (32bits version).
>>>
>>> Would have I miss something? Like a flush or a close? Logically, I don't
>>> see
>>> where I would...
>>>
>>>
>>> Gregory Crosswhite-2 wrote:
>>>>
>>>> Yay, I'm glad to see someone else using my package. :-)
>>>>
>>>> Hmm, your program seems to work for me. I compiled and ran the Server
>>>> (with ghc --make), then compiled and ran the Client, and then typed
>>>>
>>>> Operation 1.0 Mult 2.0
>>>>
>>>> into the Client process, and the result it got was
>>>>
>>>> 2.0
>>>>
>>>> with the output
>>>>
>>>> Just 2.0
>>>>
>>>> on the Server.
>>>>
>>>> I got the same results running this on Mac OSX and (Gentoo) Linux, with
>>>> GHC 10.4. What platform/GHC version are you running it on?
>>>>
>>>> Cheers,
>>>> Greg
>>>>
>>>> On Apr 6, 2010, at 2:38 PM, Yves Parès wrote:
>>>>
>>>>>
>>>>> Hello,
>>>>>
>>>>> I'm trying to use the packages Network and
>>>>> Control.Monad.BinaryProtocol
>>>>> together, with a very simple program in which a client sends an
>>>>> operation
>>>>> to
>>>>> the server, which computes the result and sends it back.
>>>>>
>>>>> But the server holds when trying to receive (Server.hs, line 22),
>>>>> whereas
>>>>> the client has actually sent the data (Client.hs, line 17).
>>>>> The server stops to hold only when the client is killed with a Ctrl-C.
>>>>>
>>>>> This should be rather simple, and I can't get to know why it doesn't
>>>>> work.
>>>>>
>>>>> The files are here:
>>>>> http://old.nabble.com/file/p28157883/Client.hs Client.hs
>>>>> http://old.nabble.com/file/p28157883/Server.hs Server.hs
>>>>> http://old.nabble.com/file/p28157883/SharedData.hs SharedData.hs
>>>>>
>>>>> -----
>>>>> Yves Parès
>>>>>
>>>>> Live long and prosper
>>>>> --
>>>>> View this message in context:
>>>>> http://old.nabble.com/Simple-binary-protocol-through-network-test-tp28157883p28157883.html
>>>>> Sent from the Haskell - Haskell-Cafe mailing list archive at
>>>>> Nabble.com.
>>>>>
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>>>>
>>>
>>>
>>> -----
>>> Yves Parès
>>>
>>> Live long and prosper
>>> --
>>> View this message in context:
>>> http://old.nabble.com/Simple-binary-protocol-through-network-test-tp28157883p28158514.html
>>> Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com.
>>>
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>
>
-----
Yves Parès
Live long and prosper
--
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