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World: r3wp

[!Cheyenne] Discussions about the Cheyenne Web Server

onetom
6-May-2011
[10251x2]
im chopping it down now
did u get it? no immediate thoughts?
Dockimbel
6-May-2011
[10253x3]
I got it but was busy with other tasks. Will look into it in a few 
minutes.
Error reproduced. Tested with similar code within RSP: <% ] %> is 
producing an error, but it is handled nicely.
onetom: fix pushed for the issue you have reported. Let me know if 
it works ok for you.
onetom
6-May-2011
[10256x6]
im getting different errors now, but trying to dig to its roots
confirmed: my script works w r135 but not w r136 (this is a different 
script)
** Syntax Error : Missing [ at end-of-block 
    ** Where: none 
    ** Near:  "(line 5) ]" 
thats all i get as an error msg
hmm... it's a .r file but it's in rsp format, so no rebol header 
but <% %> tags.
so i guess it's the right behaviour
if i was calling the script .rsp and also bind-extern .rsp to the 
RSP handler then it worked too.

is it something hardwired in cheyenne, if the extension is .r then 
is should be handled as a plain rebol script?
bugfix worked. thx
Dockimbel
6-May-2011
[10262]
s it something hardwired in cheyenne, if the extension is .r then 
is should be handled as a plain rebol script?

 Yes, .r scripts are processed as plain REBOL scripts but with the 
 addition of the whole RSP API since r100 (http://code.google.com/p/cheyenne-server/source/detail?r=100).


It has been officialy documented on the wiki only recently: http://cheyenne-server.org/wiki/Rsp/Basis
("No-template scripts" section).
Kaj
6-May-2011
[10263]
Doc, did you get a chance to debug fast-rebol-cgi?
onetom
6-May-2011
[10264x3]
my quesstion was rather: where and how is it hardwired that .r is 
executed in rsp context? is there an internal bind-extern RSP [ .r 
] happening. do i need the rsp module for this alone or do i need 
that action module too? stuff like that. otherwise it feels pretty 
magical
we have even experienced very strange behaviour with the
unless value? 'some-func [ do %../lib/obj.r  do %../lib/oid.r ]

tactic. our to-object function defined in obj.r didnt have a value.

we modified the script, did not restart cheyenne and it started working!
it was just happening with the binary version of cheyenne, iirc, 
so i dropped the case...
Dockimbel
6-May-2011
[10267x2]
Kaj: I thought it was fixed since r131: http://code.google.com/p/cheyenne-server/source/detail?r=131
AFAIR, mod-action is required for mod-rsp. bind-extern RSP .r is 
required to send .r scripts to the RSP handler in workers.
Kaj
6-May-2011
[10269x2]
See April 25 above. I used r135:
It recognises the fast-rebol-cgi keyword in the globals now, but 
it doesn't seem to do anything. It seems to try to execute REBOL 
code as real CGI. It tries to use the shebang line and has permission 
problems with CGI files that it didn't have before
onetom
6-May-2011
[10271]
so, if there is no bind-extern RSP [ .r ] then where are the .r files 
get executed? within the main cheyenne process?
Dockimbel
6-May-2011
[10272x3]
onetom: They should be just served as a static resource if the 'bind-extern 
directive is not used.
Kaj: I'm looking into that issue right now.
Kaj: I've pushed a fix in r137 for fast-rebol-cgi. It was wrongly 
defined as a Globals section keyword instead of a Host section one.
Kaj
6-May-2011
[10275x2]
Ah, I was wondering about that
So I have to define it for every applicable host?
Dockimbel
6-May-2011
[10277]
Yep.
Kaj
6-May-2011
[10278x2]
Thanks, I'll try
By the way, I still want to get rid of the loading of the REBOL CGI 
script on each request, even though I've minimised its size. It's 
a fallback script that now executes in the not-found handler. If 
I would change it from a fast-rebol-cgi script to an .r script, and 
put it in an ALIAS handler, would that preempt the loading of the 
script one each request? I'm not using the RSP interface, so the 
loading of that would be extra overhead. Would it still be faster 
than loading the small fast-rebol-cgi script?
Dockimbel
6-May-2011
[10280]
Hard question for past midnight, I think you've lost me after the 
first sentence. :-)
Kaj
6-May-2011
[10281]
Oh, I thought I was the amateur. :-) Maybe a night sleep will enable 
you to answer it?
Dockimbel
6-May-2011
[10282]
What are you calling the "not-found handler"?
Kaj
6-May-2011
[10283]
404 status
Dockimbel
6-May-2011
[10284]
Ok.
Kaj
6-May-2011
[10285x2]
Same way QM hooks into Cheyenne
I mean, RSP templates are cached, right? So are the new .r files 
cached, too, instead of loaded on each request like CGI scripts?
Dockimbel
6-May-2011
[10287x2]
RSP templates: yes, .r files: I'm not sure, checking the code...
.r: right, they are cached too when they are evaluated by the RSP 
handler.
Kaj
6-May-2011
[10289]
Cool, and refreshed when modified?
Dockimbel
6-May-2011
[10290x2]
Sure.
If I would change it from a fast-rebol-cgi script to an .r script

 I understand you want to use the RSP handler instead of the CGI handler?
Kaj
6-May-2011
[10292x2]
So do you think preparing the RSP interface for each request would 
still be faster than reading a small rebol-fast-cgi file every request?
Yes, if that would be faster
Dockimbel
6-May-2011
[10294]
Hard to say, the RSP "preparation" overhead is much bigger than for 
CGI, but OTOH, the CGI script is not cached in memory...
Kaj
6-May-2011
[10295]
I thought so. I'd have to do measurements to be sure
Dockimbel
6-May-2011
[10296]
At least, not explicitly cached, but it will probably live in the 
system memory cache for disk files, so hard to say.
Kaj
6-May-2011
[10297x3]
Thanks, that clears it up as far as we can get now
It works. I'm now running the binary version of Cheyenne instead 
of the source version
That should mean I will now be able to use the 0MQ binding
onetom
7-May-2011
[10300]
hmm... i thought i can put my shared library code above the webapp 
root, but it seem to fail without any errors.

what exactly is the purpose of the overwritten 'do function in the 
RSP handler?
i don't quite get that depth/1 and arg/3 stuff