From: Robert Klemme <shortcutter@...>
Date: 2013-06-05T23:55:11+09:00
Subject: Re: TCPServer/Socket and Marshal problem

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On Wed, Jun 5, 2013 at 3:27 PM, Panagiotis Atmatzidis
<atma@convalesco.org>wrote:

>
> On 5 =C9=EF=F5=ED 2013, at 14:53 , Robert Klemme <shortcutter@googlemail.=
com>
> wrote:
>
>
>
>
> On Wed, Jun 5, 2013 at 12:56 PM, Panagiotis Atmatzidis <
> atma@convalesco.org> wrote:
>
>>
>> On 5 =C9=EF=F5=ED 2013, at 12:08 , Robert Klemme <shortcutter@googlemail=
.com>
>> wrote:
>>
>> TCPServer/Socket seems a lot cleaner + I have the chance of learning one
>> thing or two about how a client/server app works at this level. Since
>> time is not an issue and learning as much as possible on the process is =
one
>> of the goals, all I need to do (in my case) is ti implement 'MuTex' and
>> handle TCPServer/Socket connection errors in a graceful way and I'm on.
>>
>>
>> Fair enough.  What is your application supposed to do?
>>
>>
>> Client auth's to the server, using just an string. If auth successfully
>> client requests an object, performs actions and returns an object with
>> results of these actions. Both objects are arrays (text).
>>
>
> And where in that scenario is the server issuing requests towards the
> client?  I only see
>
>
> client connects and obtains entry object
> client invokes session =3D entry.authenticate(credentials)
> server returns session object (if auth successful)
> client invokes data =3D session.get_whatever_i_need()
> client invokes result =3D data.do_the_work() (locally)
> client invokes session.the_result_is(result)
>
> client invokes session.close (optional)
>
>
> You mean this code is possible? https://gist.github.com/atmosx/5713828 (l=
ook
> at the run method)
>

Line 7 is superfluous for the client.  Oh, and btw. variable "any" in
#initialize is pretty useless.  Did you mean "@any"?


> So the client can dump the results to the remote database? Or pass it to
> the server to make the check ups and then dump it to the database?
>

Of course.  Why should it not?


> I missed that part :-P if that's the case.
>

DRb is a complete distributed object communication system.  You have value
and reference objects (see DRb::DRbUndumped).

Cheers

robert


--=20
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><br><div class=3D"gmail=
_quote">On Wed, Jun 5, 2013 at 3:27 PM, Panagiotis Atmatzidis <span dir=3D"=
ltr">&lt;<a href=3D"mailto:atma@convalesco.org" target=3D"_blank">atma@conv=
alesco.org</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><div style=3D"word-wrap:break-word"><br><div><div><div cla=
ss=3D"h5">
<div>On 5 =C9=EF=F5=ED 2013, at 14:53 , Robert Klemme &lt;<a href=3D"mailto=
:shortcutter@googlemail.com" target=3D"_blank">shortcutter@googlemail.com</=
a>&gt; wrote:</div><br><blockquote type=3D"cite"><div dir=3D"ltr"><br><div =
class=3D"gmail_extra">
<br><br><div class=3D"gmail_quote">On Wed, Jun 5, 2013 at 12:56 PM, Panagio=
tis Atmatzidis <span dir=3D"ltr">&lt;<a href=3D"mailto:atma@convalesco.org"=
 target=3D"_blank">atma@convalesco.org</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><div style=3D"word-wrap:break-word"><br><div><div><div>On =
5 =C9=EF=F5=ED 2013, at 12:08 , Robert Klemme &lt;<a href=3D"mailto:shortcu=
tter@googlemail.com" target=3D"_blank">shortcutter@googlemail.com</a>&gt; w=
rote:</div>

<br><blockquote type=3D"cite"><div dir=3D"ltr">TCPServer/Socket seems a lot=
 cleaner + I have the chance of learning one thing or two about how a clien=
t/server app works at this level. Since time=A0is not an issue and learning=
 as much as possible on the process is one of the goals, all I need to do (=
in my case) is ti implement &#39;MuTex&#39; and handle TCPServer/Socket=A0c=
onnection errors in a graceful way and I&#39;m on.<br>
</div></blockquote></div></div></div></blockquote><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-lef=
t-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div sty=
le=3D"word-wrap:break-word">
<div><blockquote type=3D"cite"><div dir=3D"ltr"><div class=3D"gmail_extra">=
<br>Fair enough. =A0What is your application supposed to do?</div></div></b=
lockquote><div><br></div></div><div>Client auth&#39;s to the server, using =
just an string. If auth successfully client requests an object, performs ac=
tions and returns an object with results of these actions. Both objects are=
 arrays (text).</div>

</div></blockquote></div><div class=3D"gmail_extra"><br></div>And where in =
that scenario is the server issuing requests towards the client? =A0I only =
see</div></div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr"><div=
 class=3D"gmail_extra">
<br></div><div class=3D"gmail_extra">
client connects and obtains entry object</div><div class=3D"gmail_extra">cl=
ient invokes session =3D entry.authenticate(credentials)</div><div class=3D=
"gmail_extra">server returns session object (if auth successful)</div>
<div class=3D"gmail_extra">client invokes data =3D session.get_whatever_i_n=
eed()</div><div class=3D"gmail_extra">client invokes result =3D data.do_the=
_work() (locally)</div><div class=3D"gmail_extra">client invokes session.th=
e_result_is(result)</div>
</div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr">
<div class=3D"gmail_extra">client invokes session.close (optional)</div></d=
iv></blockquote><div><br></div></div></div><div>You mean this code is possi=
ble?=A0<a href=3D"https://gist.github.com/atmosx/5713828" target=3D"_blank"=
>https://gist.github.com/atmosx/5713828</a>=A0(look at the run method)</div=
>
</div></div></blockquote><div><br></div><div style>Line 7 is superfluous fo=
r the client. =A0Oh, and btw. variable &quot;any&quot; in #initialize is pr=
etty useless. =A0Did you mean &quot;@any&quot;?</div><div style>=A0<br></di=
v>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><div style=3D"word-wrap:break-word"><div><div></div><div>S=
o the client can dump the results to the remote database? Or pass it to the=
 server to make the check ups and then dump it to the database?</div>
</div></div></blockquote><div><br></div><div style>Of course. =A0Why should=
 it not?</div><div style>=A0</div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(20=
4,204,204);border-left-style:solid;padding-left:1ex">
<div style=3D"word-wrap:break-word"><div><div>I missed that part :-P if tha=
t&#39;s the case.=A0<br></div></div></div></blockquote><div><br></div><div =
style>DRb is a complete distributed object communication system. =A0You hav=
e value and reference objects (see DRb::DRbUndumped).</div>
<div style><br></div><div style>Cheers</div><div style><br></div><div style=
>robert</div></div><br clear=3D"all"><div><br></div>-- <br>remember.guy do =
|as, often| as.you_can - without end<br><a href=3D"http://blog.rubybestprac=
tices.com/">http://blog.rubybestpractices.com/</a>
</div></div>

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