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Yet another announcement...

 [1/7] from: ryanc::iesco-dms::com at: 6-Mar-2002 14:02

Keep your eyes out in the REBOL library, as I am releasing a few things this month: TEST VERSIONS Calculese -- A multifunction calculator dialect. Ready this month. FTP-Serve -- A light duty FTP Server. Ready this month. CaRB -- Callback Request Broker. Ready this month. Go-POS -- An excellent point of sale system. Ready this month. UPDATES Desk-Calc -- I improved design of my standard function calculator. Now in REBOL library. Mini-Calc -- My minimum function calculator is now even more minimal. Now in REBOL library. Plus I hope to post my reb site this month if I have any time leftover. --Ryan

 [2/7] from: chalz:earthlink at: 7-Mar-2002 0:12

So, uh, Ryan... what's the URL? :) --Charles

 [3/7] from: m:koopmans2:chello:nl at: 7-Mar-2002 6:59

Hi Ryan, What is the difference between CaRB and Rugby? Especially if you'd use it in View scripts with the Rugby 'chain func, which is a callback? How do you handle stub code generation and security? What is your performance? Do you use http for transport as well? Always interested in other broker techniques.... --Maarten

 [4/7] from: ryanc:iesco-dms at: 7-Mar-2002 11:22

Hey Maarten, The main difference of CaRB and Rugby is that its CaRB is miniscule. The current version is 1475 bytes, and I dont expect it to grow much, and it may very well shrink. Its good for educational purposes, and can be included within source without adding much size. The transport is best described: close insert open rejoin [tcp:// IP ":" port] mold return-value and this makes the request end go: close insert open server mold/only request So it doesn't pass firewalls too well, and wont work for connections that dont close right away. But it is small, and I would expect at least decent performance, but I am sure there is a hit taken because a new connection must be established to return a value. The function to send a request is used like this
>> CaRB/Request [increment 999]
To see if the reply has come back...
>> CaRB/Listen
== [1000] Return values are wrapped in blocks, as to differentiate a 'none for nothing recieved and a 'none for the server returning none. Unset! values do not get returned, but potentially could this way. I haven't quite made up my mind yet though becuase I haven't had a chance to use it much. On the server end, you have three options: * You can serve out a context--as you know is sort of dangerous, but quite easy to impliment without security in mind. Example:
>> CaRB/serve context [increment: func [arg][arg + 1]]
* You can server a block of named functions. Example:
>> CaRB/serve reduce ['increment func [arg][arg/1 + 1] 'decrement func
[arg][arg/1 - 1]] * You can serve a function directly, so that its passed the whole request as a block. This is gives you alot of control over the request. Example:
>> CaRB/serve func [arg][arg/1 + 1] ; Requesting [999] would return [1000].
My explanation is probably longer than the source, so if your interested here is were you can find the source so far at: Note that this is not a static version, and functionality is subject to change. I suppose this also means that if you see any flaws in the concept, please let me know before I release it officially. You may find it interesting that CaRB is really just one of my expirements in the design of a internet scale supercomputer. --Ryan Maarten Koopmans wrote:

 [5/7] from: ryanc:iesco-dms at: 7-Mar-2002 11:32

Charles wrote:
> So, uh, Ryan... what's the URL? :) > > --Charles
My site will be posted in the rebol sites list when its ready, probably toward the end of the month. In the meantime you can find my stuff in the rebol library as it becomes available. --Ryan

 [6/7] from: chalz:earthlink at: 8-Mar-2002 0:33

> Charles wrote: > > > So, uh, Ryan... what's the URL? :) > > > > --Charles > > My site will be posted in the rebol sites list when its ready, probably
toward the
> end of the month. In the meantime you can find my stuff in the rebol library
as it
> becomes available.
:/ I repeat my question, and this time for the REBOL sites list, and the REBOL library. I don't know these URLs, either. Not aiming at you specifically, Ryan, just a generalized semi-gripe, but about half the time some product/script is announced on this list, no URL is provided. Life is much easier if we can look at the email message, bring our mouse up and go "click" and find it, instead of searching. --Charles

 [7/7] from: ryanc:iesco-dms at: 8-Mar-2002 9:45

Ah, ok no problem. The sites list is accessable through the view desktop. Just click on then sites or library. In the library you can use the history reblet to find the most recently uploaded scripts. This is why no URL's are typically given, since most people just post thier software to the rebol library. If your OS doesnt have view try starting here: :o(
>> print read
Enjoy! --Ryan Charles wrote: