Re: [AOLSERVER] Fwd: AOL Listserv to be Discontinued
SF sounds ok to me On Oct 26, 2011, at 6:43 AM, Dossy Shiobara do...@panoptic.com wrote: Hi, There has been little discussion or response to this matter, and the few responses have all been in favor of moving the lists to SourceForge. Today is the 26th, so I'd like to do the list move sometime tonight or tomorrow. Consider this the last call for comments or objections. Thanks again, everyone, Dossy On 10/19/11 8:25 AM, Dossy Shiobara wrote: Everyone, It appears that AOL is going to be shutting own its LISTSERV, which includes several AOLserver mailing lists. Since there's still activity on this mailing list, I think it would be worth moving to a new list. SourceForge offers GNU Mailman lists as part of its project hosting offering. Does anyone have a strong preference as to where to relocate the lists? Any good reasons why they shouldn't move to SourceForge? I'd like to try and wrap up discussion around this by Wednesday, October 26th, to give us time to actually perform the relocation of the list, if possible. Thanks, Dossy Shiobara Original Message Subject:AOL Listserv to be Discontinued Date:Tue, 18 Oct 2011 00:59:58 + From:AOL Listserv Service aol.listserv.serv...@teamaol.com To:AOL Listserv Service aol.listserv.serv...@teamaol.com Dear AOL Listserv Administrator, You are receiving this email because you have been listed as the administration for one or more lists hosted by AOL’s listserv service. We would like to inform you that AOL will be discontinuing the listserv service on November 1^st , 2011. If your list is still actively used, please make arrangements to find another service prior to the shutdown date and notify your list members of the transition details. If you are no longer actively using this service then no other action is required. If you have any questions, please contact aol.listserv.serv...@teamaol.com. Thank you. -- Dossy Shiobara | He realized the fastest way to change do...@panoptic.com | is to laugh at your own folly -- then you http://panoptic.com/ | can let go and quickly move on. (p. 70) * WordPress * jQuery * MySQL * Security * Business Continuity * -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to lists...@listserv.aol.com with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to lists...@listserv.aol.com with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] recent updates
Hey Jeff, I'm about to start using aolserver for the first time in many, many years, so your post is very encouraging, and the changes look good. Your exposed the gzip flag to tcl scripts (ns_conn gzip) item reminded me that I believe I had promised some code a while back on that...and I forgot to upload it...my apologies to those expecting it. I'll grab the latest and greatest from SF and start messing around with your changes. Is SF the main repo for aolserver? What about the modules (specifically nspostgres)? RE: TclX...can't that be loaded as an extension, so that those who still need it can load it? Thanks for your effort. --brett From: Jeff Rogers dv...@diphi.com To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, October 18, 2011 10:45 PM Subject: [AOLSERVER] recent updates Hey all, me again. For those of you who don't monitor the commits list I wanted to share a few changes I've recently made as well as a few I'm still thinking about. - implemented native decoding of strings in ns_returnfile. This allows filenames that are not utf-8 to be passed, similar to tcl core functions. - committed a long-outstanding patch to address a fastpath caching bug where incorrect file content could be delivered in a system when inodes are rapidly being reused. Added a new config option cacheminage to control this behavior. - implemented a suggestion to re-run pre-auth and post-auth filters on internal redirects. As this could break assumptions in unusual situations, there is a config option filterredirect to disable it. Among other things, this addresses an issue in openacs that made it complicated to handle 404 errors. Also fixed a server crash when there is an error in the configured error page. - added flags to insert a filter at the beginning of the list of registered filters instead of only at the end, and to order filters by priority. - exposed the gzip flag to tcl scripts (ns_conn gzip) - added another new filter, pre-write which runs after content has been returned but before it has been sent over the network. To make this useful, there is a new method to ns_conn to examine and set the response content that is about to be sent. This could be useful for implementing something like apache's mod_pagespeed, which rewrites content to do things like merge javascript and css files to reduce external requests, or just strip extraneous whitespace from a page. - added a tuning knob maxaccept to let the driver accept more than one connection per spin. The SF RFE for this referenced a paper that found this type of change could improve performance and reduce dropped connections under load; I unfortunately don't have a network capable of simulating enough load to stress this so I cannot claim any measured improvement. I also have a few other ideas I haven't gotten around to adding (or even necessarily thinking through completely) yet: - removing encoding and gzip compression from the normal response writing codepath (Ns_ConnFlush) and making them into pre-write filters. - adding an api to name C-coded filters and handler procs such that they could be used by the tcl ns_register_filter/ns_register_proc commands. This could eliminate a few special-purpose commands that do this same thing for particular operations (ns_register_fastpath and ns_register_filter_shortcut). - add support for chunked encoding for requests, digest authentication, and Expect: 100-continue. I've heard that these are already supported in NaviServer, so this may be a fairly simple cutpaste enhancement. - replace c-coded versions of many file operations with equivalent tcl-coded versions. Many of these functions (e.g., ns_mkdir, ns_cp) come from before tcl had equivalent functionality, but tcl now has that functionality, and it's better (native decoding). - replace ns_share with tcl version built around nsv, if not eliminating it entirely. - remove other really old code like tclx keylist support. I honestly don't know if this is still being used, perhaps it could be kept around in a nscompat module along with other things like ns_var and ns_share). I'm a bit reluctant to break compatibility without an easy switch to un-break it. - make content sending event based, by pushing it back to the driver thread, a task thread, or a completely new writer thread, rather than blocking a conn thread if the content is big and the network is slow. There is support for doing this at the tcl level, but it would be nice to have it implicitly happen everywhere. - let queue-waits be set up from a conn thread and the conn re-queued in the driver thread. This would let you do database operations before making network calls and still wait for those calls to complete without tying up conn threads. This would mean a rather esoteric coding style but I think it would make for a really powerful mashup engine. Some of these are pretty disruptive (especially the
Re: [AOLSERVER] Does not work ns_return + zlib
- Original Message From: Jeff Rogers dv...@diphi.com To: AOLSERVER@LISTSERV.AOL.COM Sent: Mon, December 6, 2010 3:40:47 PM Subject: Re: [AOLSERVER] Does not work ns_return + zlib Hossein Sharifi wrote: One problem is that AOLserver doesn't gzip content when ns_return is called; it works for pretty much every scenario except that one. I don't know why this is the case; we just hacked this by recompiling nsd to always gzip regardless of the config file, as long as the client supports it (line 161 of connio.c). It would be nice if this worked correctly by default (or if we figured out the proper way to enable its use in ns_return). I only skimmed over the code, but it looks like the problem is that the content is only gzipped if the NS_CONN_GZIP flag is set on the conn, and the only place that flag is set is in the adp processor. The obvious (I think) improvement is to expose Ns_ConnGetGzipFlag/Ns_ConnSetGzipFlag as subcommands of ns_conn, which would let you write a filter to do the ancient/broken browser checking or whatever else you needed and turn gzip on or off as needed. (However, doing this could impact adp processing, so a corresponding change might need to be made there, lest your adp code has a different idea about what should or shouldn't be compressed) We had a similar discussion about this a couple years ago. See http://www.mail-archive.com/aolserver@listserv.aol.com/msg11598.html (although the threading is messed up in the mail archive, so you will have to skip around). At the time, if I remember, there wasn't a real consensus, so I made changes in my sandbox to mimic the adp compression but for ns_return. If people are interested, I can try to dig up the code. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to lists...@listserv.aol.com with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to lists...@listserv.aol.com with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Fun, free applications for building personal sites.
I don't think TclSOAP uses tdom, does it? That might explain any speed problems. In addition there is Web Services for Tcl: http://members.cox.net/~gerald.lester/WebServicesForTcl.html I have not used it at all, so I can't offer any opinion...however it does look like it uses tdom. - Original Message From: Rusty Brooks [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Monday, May 5, 2008 8:04:10 PM Subject: Re: [AOLSERVER] Fun, free applications for building personal sites. I've used TclSoap. I wasn't like, impressed with it's speed but it seems OK. It seems quite behind the times, though, I did extensive modifications trying to get it to work with various WSDL files and in general it does not do a complete job, which is kind of frustrating, especially when integrating with web services that have TONS of data types and commands. It kind of looked like that WSDL implementation just didn't progress past a certain point. I might screw with it some time but at the moment I've got the manual soap definitions done for the apps I need to support, so, it's not that pressing. Bas Scheffers wrote: On 06/05/2008, at 11:44 AM, Tom Jackson wrote: The main thing you need with a mashup is data. Without that, there is nothing to mash. And much of that data is in XML and tdom runs rings around any Java XML implementation, though not sure about the ones in PHP, Perl, etc which are also likely to be C based. (I am currently profiling and optimizing a car rentals aggregator site, which does tons of XML parsing and creating. Its all in Java and its not pretty; sooo slow and with enormous RAM requirements) Has anyone used TclSOAP? And compared it in performance to Java SOAP clients? Bas. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Fun, free applications for building personal sites.
- Original Message From: Tom Jackson [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Monday, May 5, 2008 11:46:47 PM Subject: Re: [AOLSERVER] Fun, free applications for building personal sites. On Monday 05 May 2008 22:58, Brett Schwarz wrote: I don't think TclSOAP uses tdom, does it? That might explain any speed problems. In addition there is Web Services for Tcl: http://members.cox.net/~gerald.lester/WebServicesForTcl.html I have not used it at all, so I can't offer any opinion...however it does look like it uses tdom. Right Web Services for Tcl requires Tcl 8.5 and tclhttpd, it doesn't work with AOLserver. Tcl 8.5 *or* the _dict (source, windows binary) extension for Tcl 8.4_ I can't imagine that it would take too much to make it work with aolserver...in fact I believe the main author of that package is using aolserver now, but I'm not sure if he has ported this over to aolserver. Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Fun, free applications for building personal sites.
In addition there is Web Services for Tcl: http://members.cox.net/~gerald.lester/WebServicesForTcl.html I have not used it at all, so I can't offer any opinion...however it does look like it uses tdom. Right Web Services for Tcl requires Tcl 8.5 and tclhttpd, it doesn't work with AOLserver. Besides, Web Services for Tcl is based upon the TclOO package by Donal K. Fellows which is not (besides other issues) multi-threading/ AOLServer compatible (no serializer etc.) huh? Where did you get that it is based on TclOO? TclOO isn't even out yet. And where did you get that TclOO is not compatible with aolserver...just curious (I haven't tried it myself within aolserver). It should be thread safe, as far as I'm aware (although I don't believe it is fully implemented yet, so you never know). Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_share (was Active participation)
Just curious...did you have to do anything special to get it working inside aolserver? - Original Message From: Jay Rohr [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Wednesday, April 16, 2008 2:17:38 PM Subject: Re: [AOLSERVER] ns_share (was Active participation) just FYI I am using the tsv (from the thread package) functions within aolserver and, at least for my uses, it is faster than the nsv equivalents. (and it is a namespace :-)) It also has a number of advantages, I can run the same code outside of aolserver, the tsv::lock allows me to run a block of code under the shared mutex, and it has a more complete set of list functions. Jay Jim Davidson wrote: Hi, Brent Welch wrote some ns_share code which worked with Tcl variable traces to emulate the original code. It works except for a few edge cases but is generally considered less efficient and flexible than the new nsv_* commands. So, when I say we gave up on ns_share I mean we stopped applying our patches to the Tcl core for ns_share, allowing us to use the Tcl source un-altered. -Jim On Apr 14, 2008, at 1:37 PM, Brett Schwarz wrote: True -- the original threading in AOLserver 2.0 way back in 1995 (yes, 1995) was based on a thread-safe hacked Tcl 7.3. I can't recall where I got it -- I think someone at UCB did the work. We later hacked Tcl 7.4 and 8.1 on our own before enough support was in the Tcl core and we were ready to give up on ns_share which was a significant hack that couldn't reasonably be brought forward. I was just looking at file.tcl, and it still uses ns_share. Is that ok? Or should that be changed? Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_db and bind variable support
+1 - Original Message From: Dossy Shiobara [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Wednesday, April 16, 2008 7:00:14 PM Subject: Re: [AOLSERVER] ns_db and bind variable support On 2008.04.17, Bas Scheffers [EMAIL PROTECTED] wrote: That brings me to another subject: do we want prepared statements? Yes! In web applications, one of the big performance hits is SQL query parse time. The irony is, in web applications, the queries aren't really dynamic: most can be parsed once, and different bind variable values used at execution time. In my local sandbox, where I've been hacking on bind variable support, I also implemented an [ns_db prepare] which returns an opaque ID to an entry in a prepared statement cache. The concept looks like this: set stmt [ns_db prepare ?-pool $pool | -handle $handle? $sql] set values [list a 1 b 2 ... z 26] ns_db exec -statement $stmt $values Or, something very much like that. One thought, to avoid having application code store and save and retrieve the statement handle between requests was to hash the SQL statement and make the opaque ID the hash. The unlikely hash collision issue aside, this could fail where a prepared statement can't be cached (and there's no way for nsdb to know this)--so, caching/reuse of prepared statements really should be left up to the application code, as the developer ought to know when it can be reused vs. when it should be flushed/re-prepared. -- Dossy Shiobara | [EMAIL PROTECTED] | http://dossy.org/ Panoptic Computer Network | http://panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] aolserver and Pgtcl
This is how pgtcl actually does bind variables... - Original Message From: Bas Scheffers [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Wednesday, April 16, 2008 4:20:46 PM Subject: Re: [AOLSERVER] aolserver and Pgtcl On 17/04/2008, at 8:14 AM, Dossy Shiobara wrote: I have wanted to add bind variable support to nsdb for a _long_ time, but never got around to computing this support matrix that I describe above. I don't really like bind variables, I would much rather see it implemented like: ns_db select $db select * from people where country = $1 and age $2 [list au 25] The api could even fall back to emulating this when the database itself does not support it. This would be in a database independent way, instead of the current way with Postgres and Oracle implementing their own commands. Bas. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
I'll take a stab at it. I already have part of it changed in my sandbox. This has escalated further than my original email, so I'll have to take a look again, but I'm willing to try. I'll probably need some help on some things, but I most likely will be able to do most of the work... - Original Message From: Dossy Shiobara [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Sunday, April 13, 2008 9:46:51 AM Subject: Re: [AOLSERVER] Compression On 2008.04.13, Jade Rubick [EMAIL PROTECTED] wrote: Is anyone volunteering to do this work (provided there is agreement)? If not, this entire discussion is pointless. This is why I asked this in a previous message: Eventually, we will settle on a list of things that we've eventually arrived at through this consensus-forming process. At that point, Don (or Tom), how do we go about actually accomplishing these tasks and completing these changes? Do we have any workable way of solving that problem? As you point out, until this problem is solved, all this discussion is pointless. -- Dossy Shiobara | [EMAIL PROTECTED] | http://dossy.org/ Panoptic Computer Network | http://panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
I think I would agree with you, if I change your wording slightly: The application should [have the ability to] hint to the server when compression might be appropriate for a response. I think in most scenarios, the config params should be good enough for deciding on when to compress, however, having the ability to add a decision point in the application code I think is worthwhile, and gives the developer a lot of flexibility. For *my* application, I would have the config params do the decision almost all of the time. However, I concede that other people's use cases may be different...so I think a hook into the compression decision making from application code is a good idea. I believe what I proposed covers the bases...although the details would need to be worked out... - Original Message From: Dossy Shiobara [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Saturday, April 12, 2008 6:55:53 AM Subject: Re: [AOLSERVER] Compression On 2008.04.11, Tom Jackson [EMAIL PROTECTED] wrote: If folks keep anything in mind it should be that applications should not deal with I/O performance details, at least in AOLserver. AOLserver is an application server, which means that it serves the application, the application doesn't serve anything. This is why compression was implemented the way it is for ADPs. The application should hint to the server when compression might be appropriate for a response. But, the server is ultimately responsible for determining if compression can happen, doing the compression and handling the I/O. It isn't an easy concept, and it shouldn't be handled by modifications to the ns_return API. Which is why I suggested ns_return_compress, similar to ns_adp_compress but for ns_return'ed responses. -- Dossy Shiobara | [EMAIL PROTECTED] | http://dossy.org/ Panoptic Computer Network | http://panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
Hey Dave, Which option would you prefer though? Thanks, --brett - Original Message From: Dave Bauer [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Friday, April 11, 2008 8:23:56 AM Subject: Re: [AOLSERVER] Compression Dossy, I think the discussion is just this: As Bret clearly stated at the beginning of the thread: 1) modify ns_return to take a flag. The optional connid parameter makes parsing the args a little trickier. Current: ns_return ?connid? status type string (is connid ever used??) New ns_return ?connid? status type string ?gzip? OR ns_return ?connid? status type string ?-gzip boolean? 2) add a new command similar to the workarounds: ns_returnz status type string 3) Expose Ns_ConnSetGzipFlag to the script level. This would be most similar to how the ADP compression is done I would like to see it but I don't forsee being able to write the code. Dave -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
I have to agree with Tom. I don't think the application should be
making decisions about if and when to send data compressed.
I think it should be handled in the config the same as the character
encoding is handled.
Tom Jackson wrote:
I thought that someone had suggested that the compression feature should be
handled without any flags, but based upon configuration parameters and
client
headers.
The main reason for this is because you would have to do the checks anyway,
does the compression library exist, can the client accept compression, etc.
Then what do you do if compression is requested and it doesn't exist?
Maybe this discussion happened over at OpenACS.org, but this is equivalent
to
an ssl layer, in general the application layer shouldn't get involved in
this
type of detail.
tom jackson
Let me clarify this a little bit. First of all, it would use the existing
scheme for ADP pages. So, this part would not change at all. It would utilize
the existing configuration. Currently, for ADP pages to be compressed, you have
to do these things:
1) turn compression on in ns_section ns/server/${servername} as such:
ns_param gzipon
2) Specify the minimum size of the data that will be compressed in the same
section:
ns_param gzipmin 1024
3) In the ADP section ns_section ns/server/${servername}/adp, turn it on for
ADP
ns_param gzipon
4) In the ADP page, if you want the page to be compressed, you just do:
ns_adp_compress 1
So, what I am proposing is that ns_return follows a similar structure. When I
proposed having a flag (#3 below), I was merely mimicking #4 above. For me
personally, I think I would have compression on all the time (meaning, have the
server decide when to compress). But, I assume since ns_adp_compress command is
in there, perhaps there is some reason why you might not want to compress
certain pages. So, I believe the way it works with ADP pages is (i.e server
logic):
1) it first checks that ns_adp_compress is set.
2) if yes, then if would check if the client supports compress
(Accept-Encoding: gzip...)
3) if yes, it would then check the size, and based on gzipmin, would decide
whether or not to compress the data
Right now, I have in my sandbox just a new command, ns_returnz, which is
exactly like ns_return, but will set the Ns_ConnSetGzipFlag flag internally,
and then the server will do the same decisions as above in 2 and 3. I think
this would be my preferred option, although if someone happens to share some
light on maybe edge cases where you might want to turn it on/off in the script.
*If* we do decide to go with a flag (similar to ns_adp_compress), I would
like to see the default to be on.
So, in summary, the server will be doing most of logic. ns_adp_compress is
there (I presume) to handle edge cases. So, really, I think my question boils
down to whether or not to have a command to set the flag.
I hope that clears things up.
On Friday 11 April 2008 08:23, Dave Bauer wrote:
Dossy,
I think the discussion is just this:
As Bret clearly stated at the beginning of the thread:
1) modify ns_return to take a flag. The optional connid parameter
makes parsing the args a little trickier.
Current:
ns_return ?connid? status type string (is connid ever used??)
New
ns_return ?connid? status type string ?gzip?
OR
ns_return ?connid? status type string ?-gzip boolean?
2) add a new command similar to the workarounds:
ns_returnz status type string
3) Expose Ns_ConnSetGzipFlag to the script level. This would be most
similar to how the ADP compression is done
I would like to see it but I don't forsee being able to write the code.
Dave
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Re: [AOLSERVER] Compression
On 2008.04.11, Brett Schwarz [EMAIL PROTECTED] wrote: So, what I am proposing is that ns_return follows a similar structure. I'll suggest the introduction of ns_return_compress ?on|off? -- similar to ns_adp_compress, but for ns_return. It would set the Ns_ConnSetGzipFlag accordingly, but in requests that are not in an ADP context. *If* we do decide to go with a flag (similar to ns_adp_compress), I would like to see the default to be on. In reality, compression of the output stream doesn't make sense until we implement better server-side caching, which I briefly discussed with Jim several years ago. The basic idea is: some requests are mostly static ... generated in response to a dynamic request, but the response across separate requests is static until some event invalidates that cached response. In that scenario, compression of the response makes sense: you compress it once and return the compressed version many times. I agree that smarter caching will definitely improve things. However, I think it depends on the use case for the web app. For example, my web app is an internal tool...and there are small number of users, hence not many request/sec. However, I am doing DB queries heavily with big payloads and my server is sitting in a remote office with a small pipe to the main office. So, in my case, gzipping definitely makes sense. I did some subjective tests, and for my case, compression seems to help. I have also been reading this book High Performance Web Sites, by Steve Souders (good book BTW), and he advocates compression. He's an engineer at Yahoo, and they did some detailed studies on this. Here is a cheat sheet for those who are interested: http://developer.yahoo.com/performance/rules.html However, current AOLserver implementation where all dynamic requests are generated dynamically, compression almost doesn't make sense: how many folks are still serving content to narrowband (dialup) users? For the high-bandwidth users, the cost (in time spent) of compressing the response vs. the savings in transmission time is almost equal (thus the minsize parameter, preventing small responses from even being compressed at all). IMHO, I think the cost vs response time savings will lessen more in the future, so the benefits of compression will become more so. This can partially be addressed in current AOLserver by writing a request handler that checks an NSV cache. On cache misses, the response is generated, compressed and stored in the NSV cache and returned to the client. On cache hits, it's simply an NSV fetch from cache and return the already compressed response. It would be great if the core server would handle this ;) Thanks, --brett __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
- Original Message From: Tom Jackson [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Friday, April 11, 2008 5:14:24 PM Subject: Re: [AOLSERVER] Compression On Friday 11 April 2008 16:41, Dossy Shiobara wrote: Configuration parameters is too coarse-grained control. Ultimately, the compression flag should be conditionally turned on in a registered filter if you want it at a higher level than in the actual request processing code, itself. (IMHO, the decision to compress a request should be handled on a per-request basis, as not all requests unilaterally benefit from server-side compression ... so this should be an _intelligent_ decision that's being made by the developer whether to compress the result or not.) My two cents, anyhow. If configuration is done using a trie, like threadpools, you will have very good control. I think the main point is that ns_return is not the place to decide this, it leads to very brittle code. Also, if I remember correctly, the ns_zlib module can be configured to only compress data which is larger than some minimum number of bytes. So even with a broad compression filter, you should be able to add parameters. For instance, look at Content-Length header, if than some amount, compress and rewrite the header and add others. Yes, see my earlier post...there is the gzipmin param that controls the minimum length to compress. The Apache folks no doubt have already gone through this analysis/debate. Here is what they have (for Apache 2.0): http://httpd.apache.org/docs/2.0/mod/mod_deflate.html Amoung other things, you can specify the mime type and browser type to decide on compression as well. Ultimately, here is what I would like to see: 1) config param to enable compression (this is already there) 2) config param to set the minimum size (this is already there) 3) config param for file/mime type to compress. Note that this would take care of the *.adp and *tcl pages as well. 4) Have a command (ns_compress) that could override gzip setting per request/page Or, have a separate command (ns_returnz) that does the over riding. Logic would be: 1) check if compression is enabled globally (#1 above) 2) check file type/mime type to see if compression is enabled 3) check content length to see if gzipmin 4) Override the above if ns_compress is set I think this gives a good control over what you end up compressing. If you are in a high bandwidth, high requests/sec, you might turn off compression, or have gzipmin at a high level. If you are at the other end of the spectrum (me), you will most likely be compressing most things. BTW, one thing I left out in an earlier post. For those interested in the Yahoo performance tips, and for those that use Firefox...there's an extension called YSlow that you can add that will test a web page's response against the 10 performance tips I referred to earlier. It's actually very useful. Thanks, --brett __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Minor facelift to aolserver.com
I threw this together http://www.bschwarz.com/aolserver.jpg with Gimp. Now, I'm not a graphic's wiz, but I thought I would create something basic that we can start with, as a way to get to the design we want. I would be willing to *try* to make any suggested enhancements, but like I said, I am no graphics designer. Perhaps this will spark some momentum. BTW, are there any legal matters that we need to be concerned with in creating a logo for aolserver? On 2008.04.08, Mark Aufflick [EMAIL PROTECTED] wrote: Looks clean - but it *really* needs a logo to inject some motion. I agree; I'd like a modern and attractive logo treatment, along with a few key icons for downloads, documentation, community ... You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Minor facelift to aolserver.com
On 2008.04.08, Brett Schwarz [EMAIL PROTECTED] wrote: I threw this together http://www.bschwarz.com/aolserver.jpg with Gimp. Now, I'm not a graphic's wiz, but I thought I would create something basic that we can start with, as a way to get to the design we want. I would be willing to *try* to make any suggested enhancements, but like I said, I am no graphics designer. Perhaps this will spark some momentum. It's awesome. Very Web 2.0 (gradient, reflection) ... an orange starburst and a swoosh would fully trick it out as a Web 2.0 treatment. Heh. Hey, does this mean I can put graphic artist on my resume ;) (for those serious folks...yes, I am joking) For those who are interested, most of the design of the logo I followed from this tutorial: http://gimp-tutorials.net/node/91 I've used the logo. Can you send me the GIMP .xcf file for it? http://www.bschwarz.com/aolserver.xcf cheers, --bret You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
[AOLSERVER] Compression
So, from my reading, its seems as though that in 4.5, we got on the fly ADP page compression. However, it seems as though there isn't comparable functionality for Tcl files (i.e. ns_return). I know there are some work arounds, but I was just curious why this was not implemented in the core? I took a look at the sources, and it looks fairly straight forward to add this functionality. I see there are three possibilities: 1) modify ns_return to take a flag. The optional connid parameter makes parsing the args a little trickier. Current: ns_return ?connid? status type string (is connid ever used??) New ns_return ?connid? status type string ?gzip? OR ns_return ?connid? status type string ?-gzip boolean? 2) add a new command similar to the workarounds: ns_returnz status type string 3) Expose Ns_ConnSetGzipFlag to the script level. This would be most similar to how the ADP compression is done Or, am I missing something here? Is there already a way to do this (without workarounds)? Thanks, --brett p.s. I'd really like on the fly compression for static files as well (yes, I know there are work arounds). You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Minor facelift to aolserver.com
I like the color. Not sure if Dossy was serious, but actually thinking about more...some sort of swoosh over the server part..in that color would look nice I think...but I'm biased...I like blue/orange color scheme... - Original Message From: Juan José del Río (Simple Option) [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, April 8, 2008 12:43:57 PM Subject: Re: [AOLSERVER] Minor facelift to aolserver.com What about this?! - Juan José del Río| Comercio online / e-commerce (+34) 616 512 340| [EMAIL PROTECTED] Simple Option S.L. Tel: (+34) 951 930 122 Fax: (+34) 951 930 122 http://www.simpleoption.com On Tue, 2008-04-08 at 14:29 -0400, Dossy Shiobara wrote: On 2008.04.08, Brett Schwarz [EMAIL PROTECTED] wrote: I threw this together http://www.bschwarz.com/aolserver.jpg with Gimp. Now, I'm not a graphic's wiz, but I thought I would create something basic that we can start with, as a way to get to the design we want. I would be willing to *try* to make any suggested enhancements, but like I said, I am no graphics designer. Perhaps this will spark some momentum. It's awesome. Very Web 2.0 (gradient, reflection) ... an orange starburst and a swoosh would fully trick it out as a Web 2.0 treatment. Heh. I've used the logo. Can you send me the GIMP .xcf file for it? BTW, are there any legal matters that we need to be concerned with in creating a logo for aolserver? Good question. I really should have a serious conversation with AOL Legal about this issue. I'm hoping that as long as we stay away from the actual AOL logo treatment itself, we'll be okay ... but I'd like to get that in writing. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Minor facelift to aolserver.com
Something sort of like this, is what I was thinking about: http://www.bschwarz.com/aolserver2.jpg Although the orange color kind of changed when it was converted to jpg...it was originally more like what Juan had... - Original Message From: Brett Schwarz [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, April 8, 2008 1:58:01 PM Subject: Re: [AOLSERVER] Minor facelift to aolserver.com I like the color. Not sure if Dossy was serious, but actually thinking about more...some sort of swoosh over the server part..in that color would look nice I think...but I'm biased...I like blue/orange color scheme... - Original Message From: Juan José del Río (Simple Option) [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, April 8, 2008 12:43:57 PM Subject: Re: [AOLSERVER] Minor facelift to aolserver.com What about this?! - Juan José del Río| Comercio online / e-commerce (+34) 616 512 340| [EMAIL PROTECTED] Simple Option S.L. Tel: (+34) 951 930 122 Fax: (+34) 951 930 122 http://www.simpleoption.com On Tue, 2008-04-08 at 14:29 -0400, Dossy Shiobara wrote: On 2008.04.08, Brett Schwarz [EMAIL PROTECTED] wrote: I threw this together http://www.bschwarz.com/aolserver.jpg with Gimp. Now, I'm not a graphic's wiz, but I thought I would create something basic that we can start with, as a way to get to the design we want. I would be willing to *try* to make any suggested enhancements, but like I said, I am no graphics designer. Perhaps this will spark some momentum. It's awesome. Very Web 2.0 (gradient, reflection) ... an orange starburst and a swoosh would fully trick it out as a Web 2.0 treatment. Heh. I've used the logo. Can you send me the GIMP .xcf file for it? BTW, are there any legal matters that we need to be concerned with in creating a logo for aolserver? Good question. I really should have a serious conversation with AOL Legal about this issue. I'm hoping that as long as we stay away from the actual AOL logo treatment itself, we'll be okay ... but I'd like to get that in writing. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Compression
Hey John,
I use something similar...in fact I think I stole it from an older post from
you, IIRC. However, I guess my point was, that the mechanism is all there in
4.5. The *only* thing that is needed for ns_return's to return compressed data
is to set a flag (via Ns_ConnSetGzipFlag)...that's it. It's seems like a shame
to me to let that go to waste...
Thanks,
--brett
- Original Message
From: John Buckman [EMAIL PROTECTED]
To: AOLSERVER@LISTSERV.AOL.COM
Sent: Tuesday, April 8, 2008 2:59:44 PM
Subject: Re: [AOLSERVER] Compression
On Apr 8, 2008, at 1:54 PM, Brett Schwarz wrote:
So, from my reading, its seems as though that in 4.5, we got on the
fly ADP page compression. However, it seems as though there isn't
comparable functionality for Tcl files (i.e. ns_return). I know
there are some work arounds, but I was just curious why this was
not implemented in the core? I took a look at the sources, and it
looks fairly straight forward to add this functionality. I see
there are three possibilities:
1) modify ns_return to take a flag. The optional connid parameter
makes parsing the args a little trickier.
Current:
ns_return ?connid? status type string (is connid ever used??)
I use:
ns_return_gzipped $conn $x
which is this, and works very reliably:
proc ns_return_gzipped {conn html} {
if {[string first {gzip} [ns_set get [ns_conn headers] {Accept-
Encoding}]] == -1} {
ns_return $conn 200 text/html $html
return TCL_OK
}
# john 9/21/07 -- found that we need to convert to utf-8, it isn't
automatic
set zl [ns_zlib gzip [encoding convertto utf-8 $html]]
set h [subst {HTTP/1.0 200 OK
MIME-Version: 1.0
Server: MoochServer/4.5.0a
Connection: close
Content-Type: text/html; charset=utf-8
Content-Length: [string length $zl]
Content-Encoding: gzip
$zl}]
ns_write $conn $h
return TCL_OK
}
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Re: [AOLSERVER] Minor facelift to aolserver.com
actually, where I was going with this whole thing was trying to convey speed (meaing aolserver is fast). That's the reason I used italic text, and that's why the lines fade away from the 'L'. Oh well, I guess I didn't do a good enough job conveying that :( BTW, the xcf for the second version is at my website as well: aolserver2.xcf Here are the logos I have so far, with 2 additional based on Juan's commets'... the last 2 are png as well... http://bschwarz.com/aol_logo.html - Original Message From: Dossy Shiobara [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, April 8, 2008 5:24:45 PM Subject: Re: [AOLSERVER] Minor facelift to aolserver.com On 2008.04.09, Juan José del Río (Simple Option) [EMAIL PROTECTED] wrote: As a suggestion: save it as PNG, that way colours won't change. And, make sure to keep the original .xcf, so lossless changes can be made. :-) Also, you can try starting the lines from the L itself, or more to the right than they're now. Or you can make them fade in from the L too... I don't know how to fix it exactly, but that I like the lines is a fact :) I don't think the lines should fade in, but they should be staggered to match the slant of the L. I'll grab Brett's .xcf and see if I can make the change I'm talking about. Indeed, great work, Brett. Thanks for taking the initiative with this. -- Dossy Shiobara | [EMAIL PROTECTED] | http://dossy.org/ Panoptic Computer Network | http://panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Minor facelift to aolserver.com
Ah, ok...now I know what you meant about following the L...yes, that looks better. darn it...I thought by saving as xcf, Gimp would remember the colors, etc :( I believe I used Arial bold italic for the text. I think I started with the blues in the article I quoted, but ended up making them darker. The colors from the article were 6291c0 and cce6f9. Sorry about that...I should have noted everything...I don't play around with the Gimp much :( - Original Message From: Dossy Shiobara [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, April 8, 2008 5:48:55 PM Subject: Re: [AOLSERVER] Minor facelift to aolserver.com OK, so I added one more horizontal line (so now there are 4 instead of 3), and added a slight single pixel step, to try and match the slant of the L. http://aolserver.com/images/aolserver.png http://aolserver.com/images/aolserver.xcf I'd like to redo the original .xcf - what font face and size did you use? Colors, etc. (Can you tell _I'm_ not a pixel jockey? I can't tell just from looking at what you did ... heh.) On 2008.04.08, Dossy Shiobara [EMAIL PROTECTED] wrote: I don't think the lines should fade in, but they should be staggered to match the slant of the L. I'll grab Brett's .xcf and see if I can make the change I'm talking about. Indeed, great work, Brett. Thanks for taking the initiative with this. -- Dossy Shiobara | [EMAIL PROTECTED] | http://dossy.org/ Panoptic Computer Network | http://panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_db problem
I have this in my config file:
ns_section ns/server/games-admin/modules
ns_param nssock $bindir/nssock.so
ns_param nslog $bindir/nslog.so
ns_param nscp $bindir/nscp.so
ns_param nsdb $bindir/nsdb.so
ns_param shared_tcl tcl
ns_section ns/db/drivers
ns_param postgres nspostgres.so
ns_section ns/db/pools
ns_param gameskillspool Postgres
ns_section ns/db/pool/gamespool
ns_param Driver postgres
ns_param Connections 5
ns_param DataSource localhost::games
ns_param User postgres
ns_param Password secret
ns_param Verbose On
ns_param LogSQLErrors On
ns_param ExtendedTableInfo On
ns_param Connection 5
ns_section ns/server/games-admin/db
ns_param Pools *
I have the following in my db.tcl file:
set db [ns_db gethandle gamespool]
Are you sourcing in db.tcl from admin_op.tcl? Otherwise, how will admin_op.tcl
know about $db that was set from db.tcl by [ns_db gethandle gamespool] ?
set datasource [ns_db datasource $db]
set dbtype[ns_db dbtype$db]
set driver [ns_db driver$db]
set poolname [ns_db poolname $db]
set user[ns_db user $db]
set password[ns_db password $db]
In file admin_op.tcl I do this:
set row [ns_db select $db select * from tadminoptype;]
while { [ns_db getrow $db $row] } {
ns_log Notice [ns_set get $row type] - [ns_set get $row desc]
}
The problem is that the code in admin_op does not work, I get this error:
can't read db: no such variable
while executing
ns_db select $db select * from tadminoptype;
But if I put this code in the db.tcl file, then it works fine.
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Re: [AOLSERVER] 64bit crashes right away
- Original Message From: Tom Jackson [EMAIL PROTECTED] To: AOLSERVER@LISTSERV.AOL.COM Sent: Tuesday, September 11, 2007 9:21:40 AM Subject: Re: [AOLSERVER] 64bit crashes right away My laptop is 64 bit: Linux localhost 2.6.18-gentoo-r4 #1 SMP Mon Nov 20 16:49:16 UTC 2006 x86_64 AMD Turion(tm) 64 X2 Mobile Technology TL-52 AuthenticAMD GNU/Linux For Tcl I do: ./configure --prefix=/web/nsd45 \ --enable-64bit \ --enable-threads \ --enable-shared But when it builds I get the impression it isn't 64 bit. Don't know how to check it. You can check it by looking at the tcl_platform array Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] AOLserver crash related to ns_atclose and namespace commands
That's funny actually...I just changed a bunch of these cases in a Tcl
extension I help maintain, just earlier today. I happened upon this post that
talks about it:
http://sourceforge.net/mailarchive/forum.php?thread_id=30611212forum_id=43966
Might be worthwhile doing an audit of the rest of the aolserver code for these
occurances.
--brett
- Original Message
From: Tom Jackson [EMAIL PROTECTED]
To: AOLSERVER@LISTSERV.AOL.COM
Sent: Sunday, January 21, 2007 7:17:41 PM
Subject: Re: [AOLSERVER] AOLserver crash related to ns_atclose and namespace
commands
I found the following change fixes the bug:
in nsd/tclresp.c, line 840:
static int
Result(Tcl_Interp *interp, int result)
{
/* Tcl_SetBooleanObj(Tcl_GetObjResult(interp), result == NS_OK ? 1 : 0); */
Tcl_SetObjResult(interp, Tcl_NewBooleanObj((result == NS_OK ? 1 : 0)));
return TCL_OK;
}
I'll commit the change.
tom jackson
On Sunday 21 January 2007 17:06, Tom Jackson wrote:
Okay, some more info on this.
ns_atclose has been changed in some strange ways.
First it now requires that you are in an open connection to invoke
ns_atclose.
ns_atclose used to execute in scheduled procs, which makes sense so that
you can use one method to clean up stuff in case of errors.
It is easy to re-enable adding ns_atclose to scheduled procs by removing a
few lines of code. Now I can call ns_atclose everywhere, but in scheduled
procs, the cleanup scripts don't run.
Question is: why the (silent) change, and
is there something to replace this?
The old description of the command is here:
http://rmadilo.com/files/nsapi/ns_atclose.html
I still haven't figured out where exactly the crash is coming from, but _it
is not in the NsAtCloseObjCmd or NsRunAtClose... code.
tom jackson
On Sunday 21 January 2007 11:24, Tom Jackson wrote:
I have been getting some crashes in AOLserver (current cvs version).
AOLserver doesn't exit, but prints the following and stops responding:
'Tcl_SetBooleanObj called with shared object'
Here is a tcl page which exposes the behavior:
---
# Script to expose bug with ns_atclose/namespace commands
set store ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnop
namespace eval ::bug { }
# Commenting out this line leads to bug: 'Tcl_SetBooleanObj called with
shared object'
#namespace eval ::bug::$store { }
proc ::bug::atClose { store } {
ns_log Debug checking if namespace ::bug::$store exists
if {[namespace exists ::bug::${store}]} {
ns_log Debug Deleting namespace ::bug::$store
namespace delete ::bug::${store}
#log Notice Closed store (memory delete) $store
return $store
} else {
ns_log Debug namespace ::bug::$store does not exist
}
}
# Comment out one of these and things work fine:
ns_atclose ::bug::atClose $store
#ns_atclose ::bug::atClose $store
ns_return 200 text/plain ns_atclose bug
-
The bug doesn't show up under all conditions. If the namespace exists, or
had existed and was deleted, things work as expected. Also, even if the
namespace never existed, if ns_atclose is only called once, things work
as expected.
However, if the namespace to be deleted never existed, and ns_atclose is
called twice with the same args, none of the ns_log Debug statements
print, and the crash occurs. (But the page is returned)
Not sure what is the cause.
tom jackson
On Friday 03 November 2006 10:31, Alex wrote:
Oh, well
so I guess it was too early to celebrate. Now I am getting the same
crashes again, even without exit command in the tcl code executed in
thread.
Seems to me that the same problem now discussed in
bug 1589968
https://sourceforge.net/tracker/?func=detailatid=103152aid=1589968gr
ou p_ id=3152
and
bug 1582671
http://sourceforge.net/tracker/?func=detailatid=110894aid=1582671gro
up _i d=10894
Thanks,
~ Alex.
On 11/1/06, Alex [EMAIL PROTECTED] wrote:
Zoran, Jim
thanks very much for suggestions!
I think I figured it out.
The code which was executing in the thread concluded with exit tcl
command. I got it replaced with return and it seems not to be
crashing anymore.
However, it would be probably a good idea to disable/rename exit
for the code executed in threads created by ns_thread. Not sure if
this shall be submitted as an enhancement-level bug.
Thanks,
~ Alex.
On 11/1/06, Alex [EMAIL PROTECTED] wrote:
Jim,
I tried in on the command line, seems to be my case :)
However, I run aolserver on debian, via /etc/init.d/aolserver,
Which basically invokes /usr/lib/aolserver4/bin/nsd.
How do I make it use nstclsh instead of tclsh ?
I don't see any options for that.
Thanks,
~ Alex.
On 11/1/06, Jim Davidson [EMAIL PROTECTED] wrote:
Hi,
I
Re: [AOLSERVER] New Config API's which document default values.
just a couple of suggestions, from a very quick first look (it is hard too sifting through the TAB changes, as Dossy said): 1) Tcl already has Tcl_GetBoolean...this could be used instead of the boolean...I believe...no big deal though 2) This might be a good time to start moving away from Tcl_AppendResult...just a thought. This is for AS in general. Note: there is also a Tcl_WrongNumArgs function that probably could be used in a few places too. 3) similar to 2), it might be a good time to start moving to Obj based commands. --- Tom Jackson [EMAIL PROTECTED] wrote: I have added a few new C API's for setting (just adding, not replacing) config params during startup. The new API's are named after the current Get API's, for instance: Ns_ConfigGetValue Ns_ConfigSetValue Due to the amount of common code which would have been repeated in the new API's, I factored out this code into private procedures. I also compared the resulting code with the Tcl C API standards contained in http://www.tcl.tk/doc/engManual.pdf. There were many deviations from this standard in the original file, so I made any changes that I noticed, the result is that the file is mostly new. If there are any style changes which need to be made, please point them out on this list, so I can make the changes. I included a sample use of the new APIs in nslog.c. The diff, and changed files are located at: http://rmadilo.com/m2/config-changes/ If this is something that should be included in future versions of AOLserver, I need to know which cvs version to do a diff on, and how. If there are further suggestions, please note them on this list. For one, it might be nice to have a ParamDelete procedure to hide things like password params after they have been read. Note that all config sections are returned from every virtual server with the current tcl api commands. The new APIs are only useful for adding params for values which are not in the config file. The section Ns_Set is appended to only if the section exists, but in every case, the new APIs return the value that is needed to set the default. I haven't investigated the case where a null (missing) default is used later to determine configuration (such as rollFmt), for now these will remain undocumented, but I think I can add a check for a null value to get it to work. Untested is Int64. I'm writing a C module to run tests over the APIs. tom jackson -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. = --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Asterisk and AOLserver
--- Malte Sussdorff [EMAIL PROTECTED] wrote: While reading the previous postings I stumbled upon multiple mentioning of multi protocol support and asterisk, therefore I assume people on this list are knowledgeable about this topic. Here is what we need: We run a CRM system on top of AOLserver. The CRM system contains the phone numbers of the clients. I want my PBX connected phone to make a connection to the client if I click on a link in the CRM System. Once the phone call is finished, the CRM system should be notified about this, so it can add a new entry in the call history. Same goes the other way round, if the client calls me, the CRM systems starts logging and once finished, an entry is added. I believe there is a web based soft phone for Asterisk. You could invoke that from the link. However, it might be easier to just read the CDRs that Asterisk generates, instead of tracking calls realtime...just a thought... = --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] AOLserver Applications Spec DRAFT
would it be possible to align the directory structure to that of kits? That way, people could distribute webapps via starkits...just a thought... --- Bas Scheffers [EMAIL PROTECTED] wrote: I have written down my first thoughts on how this could work at: http://bas.scheffers.net/wiki/14 As you can see, it is not easy to do this quick and dirty as proof of concept. It will require application awareness in many places (library sourcing, ns_register_*) and changing the pageroot on the fly in every request, based on what application is requested. Still, I don't believe it is too big a job. Looking forward to hear comments! Cheers, Bas. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. = --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] 4.0.8
Just FYI for anybody, this page gives some good hints on when you need to do ref management: http://wiki.tcl.tk/1192 HTH, --brett --- Andrew Piskorski [EMAIL PROTECTED] wrote: On Wed, Oct 06, 2004 at 03:54:23PM -0400, Andrew Piskorski wrote: I am suspicious of nsopenssl. It is doing stuff with Tcl_Obj's, but I don't see ANY calls to Tcl_IncrRefCount() or Tcl_DecrRefCount() at all. I recently had a huge leak problem in my own custom C code for EXACTLY that reason... Well, that concerned me, because I am soon to start making heavy use of nsopenssl 3.0, but I think it was a false alarm. Again I haven't done any testing, but I looked at the code: I only really see two uses nsopenssl makes of Tcl_Obj, saving the result of calls to Tcl_GetObjResult() and Tcl_ListObjGetElements(). ALL the code I looked at both in AOLserver and Tcl that uses those calls seems to be written in the same style, no use of Tcl_IncrRefCount() or Tcl_DecrRefCount() anywhere there either. So, I don't think that's the problem. -- Andrew Piskorski [EMAIL PROTECTED] http://www.piskorski.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
[AOLSERVER] OT: Embedding Tcl Interp into existing C application
Hello, Sorry for the OT, but I thought this would be the best list to contact about this. There is an existing app that is multi-threaded, that I wanted to added the ability to execute Tcl code from this app. This reminded me very much of how aolserver works, so I was going to start digging into the aolserver code to see how it is done. However, before I start, I was wondering if any kind souls out there have any helpful tips...maybe an overview on how aolserver does this, where to start looking in the code, and any general threading tips. thanks, --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] OT: Embedding Tcl Interp into existing C application
--- Dossy Shiobara [EMAIL PROTECTED] wrote: On 2004.08.27, Brett Schwarz [EMAIL PROTECTED] wrote: However, before I start, I was wondering if any kind souls out there have any helpful tips...maybe an overview on how aolserver does this, where to start looking in the code, and any general threading tips. How you go about embedding the Tcl interpreter will depend on what it'll be used for and how. Can you elaborate on some details about your requirements? Sure, I didn't elaborate before, because I was trying to keep the OT noise down. Anyways, there is an open source PBX system (asterisk) that has an programming interface that is very similar to CGI (in fact it is called AGI). Right now, it forks off a process everytime an AGI is called (just like CGI). I would like to change that so that Tcl scripts are loaded in ahead of time, and are executed in process (no forking). Pretty much how aolserver runs tcl procs and tcl pages. More info for asterisk can be gotten here: www.asterisk.org, and I actually wrote an article about it that you can get an overview about here: http://linuxjournal.com/article.php?sid=6769 which gives an example of an AGI. Hope that helps... thanks for your time, --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] OT: Embedding Tcl Interp into existing C application
--- Andrew Piskorski [EMAIL PROTECTED] wrote: On Fri, Aug 27, 2004 at 11:11:59AM -0700, Brett Schwarz wrote: Sure, I didn't elaborate before, because I was trying to keep the OT noise down. Actually, I think this sort of discussion, while not PRECISELY on topic for the AOLserver list, is more than close enough for discsussion. In fact, I'd like to encourage it. Your question is basically one example of, I know that AOLserver does X really well, I'd like to understand how, so that I can do something similar to X with a different program.. I think those sorts of engineering design questions are likely to teach many of us something useful. Anyways, there is an open source PBX system (asterisk) that has an programming interface that is very similar to CGI (in fact it is called AGI). Right now, it forks off a process everytime an AGI is called (just like CGI). I would like to change that so that Tcl scripts are loaded in ahead of time, and are executed in process (no forking). Pretty much how aolserver runs tcl procs and tcl pages. You might also consider something like FastCGI. Maybe that approach would be easier to integrate into the Asterisk codebase than AOLserver's in-process interpreter approach, I dunno. I thought, in essense, aolserver is FastCGI. What are the differences? Now, I've never done it, but my understanding is that anytime you want to combine Tcl and C, your first thing to decide is which language is in charge? In AOLserver the C code is in charge, and that's the way Ousterhout originally envisioned embedding Tcl. The other way, more popular lately, is to make Tcl in charge, and embed all your C functionality into tclsh as new Tcl commands. I imagine that depending on how the Asterisk code is organized, one or both of those approaches should be feasible. But of course, unless the whole codebase is already organized as a library for easy embedding into other code, the AOLserver style C is in charge way sounds more likely. By default, C is in charge, since this is an existing C app. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] OT: Embedding Tcl Interp into existing C application
--- Dossy Shiobara [EMAIL PROTECTED] wrote: On 2004.08.27, Brett Schwarz [EMAIL PROTECTED] wrote: Anyways, there is an open source PBX system (asterisk) that has an programming interface that is very similar to CGI (in fact it is called AGI). Right now, it forks off a process everytime an AGI is called (just like CGI). I would like to change that so that Tcl scripts are loaded in ahead of time, and are executed in process (no forking). Pretty much how aolserver runs tcl procs and tcl pages. You specifically asked about embedding Tcl in a multithreaded application. Is Asterix multi-threaded? If it is, and they fork and exec a new process for each AGI invocation, that's interesting ... yes, it is multi-threaded. They fork, because it is an external program. Just think of CGI. The simplest thing to do is to start by not pre-loading all the scripts ahead of time (since there's still no multi-threaded Tcl_CloneInterp() function, loading them ahead of time may not benefit you much). I'd But, what is the impact of loaded them ahead of time? I thought that's was aolserver does (i.e. the tcl procs). I realize that there is some performance problems with cloning an interp, but isn't this done at startup time, where I don't necessarily care about timing? Or am I way off base here? start by simply creating a new Tcl interp. and evaluate a script, instead of fork/exec of an external program. This also keeps a lof of the headaches of multi-threaded programming out of your hair. Expose the Asterix API to Tcl by creating Tcl commands from C. Here's one of the deals that I am clueless about mult-threaded programming. This is how I would think it would happen. The main thread would read that it is a Tcl app, and so it needs to send that to the Tcl_Interp. I would imagine that the Tcl_Interp would be in anther thread. So, I am assuming that there is communication between the threads. Is this similar to how aolserver does it? If so, where would I begin to look to see how data is passed back and forth? Once you've got that working, then just tune for performance as real measurements dictate. A good page to learn how to start embedding Tcl in your C app. can be found on the Tcl'ers Wiki: How to embed Tcl in C applications http://wiki.tcl.tk/2074 I am familiar with embedding Tcl in C, I am just unsure how its works in a mult-threaded environment...especially how data is passed back and forth between the main C thread, and the thread that has Tcl embedded. thanks for the info...I am learning ;) --brett -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Support for non-HTTP protocols
I definitely vote for a). I think AS has a very powerful framework that can be used outside of http. --- Zoran Vasiljevic [EMAIL PROTECTED] wrote: On Tuesday 17 August 2004 10:32, Zoran Vasiljevic wrote: Hi! I would like to start a discussion which will eventually lead to one of the two proposals listed below (one from Vlad Seryakov and the other from Stephen Deasey) included in the core-server distribution. Eh... wrong turn again... By start a discussion, I really expected the people to respond with: a. YES, I like AS to be more powerful multiprotocol server instead of being a powerful http-server only. And, I like proposal X better than Y because of Z. b. NO, I do not need AS doing anything else than http and am perfectly happy with status-quo now. Just forget the whole thing. I apologize for not being more precise. If a. turns out to be everbody's darling, then there are two excellent proposals for making this work. If somebody has a better solution, lets see this as RFE. Then, get a couple of (knowledgeable) people vote in democratic way about what's the better solution. I think there is a AOLSERVER-DEVEL (or such) list where deeper technical issues can be discussed in a smaller audience. If b. well, than it is clear. We just leave it as-is. Can we agree on this? Zoran -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] AOLSERVER Digest - 10 Aug 2004 to 11 Aug 2004 (#2004-171)
Personally, I agree. I really think it would be over complicating things. I am not sure why OpenACS was so gungho (sp?) about the templating system, in the first place. BUT, that's just my opinion. I am sure there are people that want this behavior...but, most likely it is something that can just be added as an extension anyways...no reason to put it in the core...correct? --- Dossy Shiobara [EMAIL PROTECTED] wrote: On 2004.08.13, Steve Manning [EMAIL PROTECTED] wrote: As well as the tags what about OACS style pairing of the adp with a tcl page to do the processing and prepare the output. I like the demarkation especially if your processing a query or validating form data - the tcl page does the work and the adp displays the results. Too cumbersome. Just write Tcl procs and have them loaded into the server, and just call them from your ADPs. We're talking web applications here that consist of a collection of web pages. That's so simple, why overcomplicate things with a whole templating system? If folks want to punish themselves by requiring an ADP and Tcl page, that's fine. I certainly wouldn't encourage that behavior ... unless someone can give me a real example with code why it's actually superior, as opposed to the way ACS has always done it. -- Dossy -- Dossy Shiobara mail: [EMAIL PROTECTED] Panoptic Computer Network web: http://www.panoptic.com/ He realized the fastest way to change is to laugh at your own folly -- then you can let go and quickly move on. (p. 70) -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] AOLSERVER Digest - 10 Aug 2004 to 11 Aug 2004 (#2004-171)
--- IRA [EMAIL PROTECTED] wrote:
Automatic digest processor wrote on 8/11/2004, 11:01
PM:
Has anyone tried to get the asp style ADP parser
originally written in
like 1999 or 2000 by some guys at AM Computers
working with Aolserver
4? The source file was nsAspStyleAdps.c. It
allowed conditional code
throughout the file separated by the % %
sequence, in the manner of
ASP.
This has always been one of my biggest complaints
with aolserver. When
you have to output html conditionally in adp pages,
you have to
backslash everything to keep tcl from choking on it.
It's just this sort of problem that makes me wonder
if the people
building aolserver ever actually USE aolserver to
build web
applications. It seems like not that big of a deal
. . . until you
realize that we do this ALL THE TIME.
Won't single quotes work (at least for the \ part)?
i.e.:
if {$vlCountryCode == DE} {
ns_puts td
background='$imageDir/hdr_bg.gif' valign='top'
align='right'a
.
.
.
or am I missing something? I don't use ADP too much, I
just prefer straight Tcl pages...
Here's an example from our code:
if {$vlCountryCode == DE} {
ns_puts td
background=\$imageDir/hdr_bg.gif\ valign=\top\
align=\right\a
href=\http://www.aol.de/action_templates/globalhelp_1.jsp?cid=1041541\;
target=\top\img
src=\$imageDir/btn_helptop.gif\ width=$img2w
height=$img2h border=0 alt=\$str6\/a/td
} elseif {$vlCountryCode == FR} {
ns_puts td
background=\$imageDir/hdr_bg.gif\ valign=\top\
align=\right\a
href=\http://aolaide.aol.fr/version4/topic/theme6.htm\;
target=\top\img
src=\$imageDir/btn_helptop.gif\ width=$img2w
height=$img2h border=0 alt=\$str6\/a/td
} else {
ns_puts td
background=\$imageDir/hdr_bg.gif\ valign=\top\
align=\right\a
href=\javascript:pop=prntPack('help/help.adp',530,500);\img
src=\$imageDir/btn_helptop.gif\ width=$img2w
height=$img2h border=0
alt=\$str6\/a/td
}
Whereas in darn near any other language/appserver
out there
(php,npe,jsp,asp), it would look something like this
(syntax varies a
bit, of course):
% if $vlCountryCode == DE %
td background=%=$imageDir%/hdr_bg.gif
valign=top align=right
a
href=http://www.aol.de/action_templates/globalhelp_1.jsp?cid=1041541;
target=topimg src=$imageDir/btn_helptop.gif
width=%=$img2w%
height=%=$img2h% border=0
alt=%=$str6%/a/td
% elseif $vlCountryCode == FR %
td background=%=$imageDir%/hdr_bg.gif
valign=top align=right
a
href=http://aolaide.aol.fr/version4/topic/theme6.htm;
target=topimg
src=%=$imageDir%/btn_helptop.gif
width=%=$img2w%
height=%=$img2h% border=0
alt=%=$str6%/a/td
% else %
td background=%=$imageDir%/hdr_bg.gif
valign=top
align=righta
href=javascript:pop=prntPack('help/help.adp',530,500);img
src=%=$imageDir%/btn_helptop.gif
width=%=$img2w%
height=%=$img2h% border=0
alt=%=$str6%/a/td
% endif %
The readability difference may not be so apparent
given the lack of
formatting in this email, but the difference in my
text editor (using
syntax coloring) is tremendous.
IRA
--
Sr. Software Engineer
Parental Controls Web
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Re: [AOLSERVER] command line history with nscp module
--- Dossy [EMAIL PROTECTED] wrote: On 2004.06.28, Nathaniel Haggard [EMAIL PROTECTED] wrote: Is there command line history in the nscp module? If so how do I turn it on? What about tab auto completion. I don't want to do any unnecessary suffering. No. Readline support in nscp makes it overly complex. You may be better off using an enhanced telnet client (most MUD clients come to mind) that offer things like history, tab completion, etc. tkcon might be able to help out too... -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] TclX keyed list changes in HEAD
Zoran, I am just curious what you have done. Did you update the AS code to match what is at tclx.sf.net? Or is this just something you did? I believe you converted to the Tcl objects, but wasn't sure if you took it from SF or did it on your own. thanks, --brett --- Zoran Vasiljevic [EMAIL PROTECTED] wrote: On Tuesday 22 June 2004 18:24, you wrote: Zoran implemented some recent changes to TclX keyed lists in CVS HEAD which changed the C API, which broke at least some code at AOL which was still using the old C API. Ah, the C-API you're talking about! Well, this is right. This has changed. I see no problem in addint the compat layer on top of that. Zoran -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_set questions
some more $0.02...
--- Jim Wilcoxson [EMAIL PROTECTED] wrote:
Sets allow entries with duplicate keys. If
duplicates are returned in
the list for this new ns_set keys, that's fine,
except that a naiive
programmer can't go through the list of keys
returned and fetch the
corresponding values. You'd have to do a foreach
loop on the keys,
increment a counter, and use the counter to lindex
into the ns_set values
result:
set values [ns_set values $myset]
set i -1
foreach key [ns_set keys $myset] {
incr i ;# put it here so that continues
can be used to exit early
set val [lindex $values $i]
do whatever
}
I think this would work too:
foreach key [ns_set keys $myset] val [ns_set values
$myset] {
do whatever
}
Another option would be ns_set aget to return
alternating keys and
values in a list that could be used as input to
array set - sort of,
ignoring the multiple key issue - to convert sets to
arrays, and
ns_set aset could be used to convert from arrays
to sets, like:
set myset [ns_set create]
ns_set aset $myset [array get myarray]
and you could do this as well:
{key1 val1 key2 val2 ...}
foreach {key val} [ns_set list $myset] {
do whatever
}
I don't know how often these would be used in
practice though, because
I think experienced TCL programmers quickly avoid
using ns_sets except
where they have to, like for interfacing with
smallish nsd data
structures.
I actually never fully understood the reason for
ns_set...but I never really tried to understand it
either. I almost always just used Tcl's internal data
structures...
--brett
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Re: [AOLSERVER] ns_set questions
Rather than building on top of Tcl Array, another alternative is to use some entirely new from-scratch C implementation, in the future maybe even something like Ratcl. But I'm not aware of any existing code that would currently be a good fit as an ns_set replacement. I've never really used them but what about keyed lists in Tclx? I believe the order is preserved, and by the looks of it, it has a very similiar interface to ns_set (from a quick look through). It also supports nesting, which would be nice. Maybe we could hijack this __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_set questions
--- Brett Schwarz [EMAIL PROTECTED] wrote: Rather than building on top of Tcl Array, another alternative is to use some entirely new from-scratch C implementation, in the future maybe even something like Ratcl. But I'm not aware of any existing code that would currently be a good fit as an ns_set replacement. I've never really used them but what about keyed lists in Tclx? I believe the order is preserved, and by the looks of it, it has a very similiar interface to ns_set (from a quick look through). It also supports nesting, which would be nice. Maybe we could hijack this although it doesn't support duplicate keys :( __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] tcl q: how to see escape chars
--- Scott Laplante [EMAIL PROTECTED] wrote:
Is there a way in tcl to puts(?) a string, but
instead of intrepreting,
showing all special characters?
For example, this is what i have:
% set thing hi
bye
hi
bye
% puts $thing
hi
bye
%
and this is what i'd want:
% set thing hi
bye
hi
bye
% puts -option? $thing
hi\nbye
%
string map {\n \\n} $thing
__
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Re: [AOLSERVER] Expect in AOLserver?
I haven't tried it from AS, but I always load Expect from within tclsh: this works for me: package require Expect If you are on Windows, then I think the Expect for windows is still a little shaky... On Sun, 2003-09-14 at 12:44, Andrew Piskorski wrote: I have an Expect script which I'm exec'ing from AOLserver. This works, and the inefficiency of forking doesn't really matter in this case. But it's annoying, as it means I can only communicate with the Expect script via command line arguments and stdin/stdout/stderr. I'd much rather just have the Expect Tcl API directly available in AOLserver. But is that in fact feasible? Is there any version of Expect which can be dynamically loaded into AOLserver (or plain tclsh for that matter), via 'package require', the modules list in AOLserver's config file, or some other such mechanism? For AOLserver 3.3, or 4.0? -- Andrew Piskorski [EMAIL PROTECTED] http://www.piskorski.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] {SPAM?} [AOLSERVER] announcing C API draft for review
A suggestion. The new api page says: This page lists the C APIs that are new in AOLserver 4.0. To improve readability, the Ns_ prefix is omitted on this page. In a reference I like to see the whole function name, without anything implied. I think removing the Ns_ decreases readability. How do others feel about that? I agree...it should have the whole function... -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_include -sameframe
Rename the current ns_include proc to _std_ns_include or somesuch, then define your own ns_include proc that looks for the -sameframe arg and does something intelligent with it ... However, all the code that gets included will need to be touched to be wrapped in an uplevel (simplest change, can be applied programmatically). I guess I am not following here (maybe because its friday), but why do you need the uplevel? Couldn't the new proc do this. I have never used ns_include... --brett __ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Lengthy tcl interp initialization
Item number one is still a bit of a mystery. The init script is notdramatically different between our 3.5 server and our 4.0 server. Asomewhat unscientific attempt to load the 4.0 init script into a 3.5server showed a similar slowdown, so we do not currently believe thatthis slowdown is due to a change in the AOLserver core threadinitialization code between 3.5 and 4.0 (but we haven't totally ruledthat out). The one difference we do know of is the use of tcl packages,but its not yet clear to us how that might dramatically affect theinitialization time. * If auto_path has a lot of directories to check, then it will take a while to search through the filesystem. This *may* be the problem you see with packages. When you do a [package require] it searches for that package based on the auto_path variable. So, if there are alot of directories, then the longer it will take to search. You could try an experiment, and try using source/load instead of [package require], or see what auto_path is set as, to see if it is too long. If it is long, try trimming that to just what is actually needed. --brett __ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] Are the weekly chats officially dead?
Lately, I've been thinking of switching to tclsh as my login shell (yes, I'm a nut) and I've heard from other folks that they'd like readline support in nscp ... so, I wonder ... what might it take for something like package require readline to work. So, if you really want readline support in nscp, you'd just connect, then issue package require readline and off you go. Okay, so maybe that idea is half-baked. But, if people don't mind linking nscp against libreadline, I'd be happy to work on putting readline support into nscp since I know almost everybody wants it. There is already a tclreadline binding. http://tclreadline.sourceforge.net I think there was another lib similar to readline, but not GPL that someone was going to work on as well, but I forget who it was --brett __ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to [EMAIL PROTECTED] with the body of SIGNOFF AOLSERVER in the email message. You can leave the Subject: field of your email blank.
Re: [AOLSERVER] ns_register_proc
I believe in Tcl 8.4 that if regexp sees a simple pattern (i.e. one that string match could use), then it will use string match to process it. I am not sure where exactly that takes place, so I am not sure if that's what you are seeing or not. Maybe once Jeff gets back, he would have some input. --brett On Fri, 2003-03-28 at 10:29, Ayan George wrote: Guys, During my lunch break, I wrote a small program to compare the execution of Tcl_StringMatch() (what ns_register_filter uses to match URLs) and Tcl_RegExpExec() (what I propose ns_register_filter should have the option of using). It looks like the regular expression stuff is just as fast (or slow depending on how you look at it) as the Tcl_StringMatch() we currently use. Of course, I haven't tested it very thouroughly. If you are interested in the code I used, it is here: http://www.ayan.net/software/TclReCmp/ I'd like to take a stab at implementing the RE matching for the ns_register_* procedures if that is okay. -ayan On Fri, 28 Mar 2003, Nathan Folkman wrote: Agree. If you want to take a stab at implementing, and can provide a patch, we'll take a look and get it added to the core. Thanks in advance. - Nathan On Friday, March 28, 2003, at 01:17 PM, Tim Moss wrote: That sounds like a good idea. Espcially if you make the default behaviour whatever the current behaviour is. This will ensure backwards compatibility (with no changes to existing code). If you want the extra flexibility the regexp option gives you then you add it to your code and chaneg the expressions accordingly. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list: http://www.aolserver.com/listserv.html List information and options: http://listserv.aol.com/ -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list: http://www.aolserver.com/listserv.html List information and options: http://listserv.aol.com/ -- Brett Schwarz [EMAIL PROTECTED] Very Little -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list: http://www.aolserver.com/listserv.html List information and options: http://listserv.aol.com/
Re: [AOLSERVER] ns_register_proc
I agree, but maybe we can add a option to the command, similar to what Tcl's switch and lsearch commands do (i.e. -glob -regexp, etc) --brett On Fri, 2003-03-28 at 07:43, Peter M. Jansson wrote: Why can't we just use POSIX regular expressions for all of the ns_register* procedures? I'd be concerned about REs degrading performance. REs are usually significantly slower than glob matches, and the registered proc matcher will be called a _lot_. -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list: http://www.aolserver.com/listserv.html List information and options: http://listserv.aol.com/ -- Brett Schwarz [EMAIL PROTECTED] Very Little -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list: http://www.aolserver.com/listserv.html List information and options: http://listserv.aol.com/
Re: [AOLSERVER] AS 4.0 (beta 2) running on privledge port
Hummm, I have tried it on 2 different machines now, and it still does not work...even with the -b option. I have tried other ports as well (i.e. 81, 82, etc). What version of 4.0 do you have (i.e. beta 1, beta 2, cvs)? I tried the same with 3.5.1, and that worked. I am on SuSE Linux 7.3, if that matters at all. Humm, I guess I need to do some more digging... Thanks, --brett On Wed, 2003-03-05 at 17:24, Peter M. Jansson wrote: On Wednesday, March 5, 2003, at 07:20 PM, Brett Schwarz wrote: However, NsPreBind does nothing is the -b or -B option are not given, when, I believe it should pre bind anyways from what is given in the config file. I could be wrong here. My inittab line: ww:345:respawn:/usr/local/aolserver-4.0/bin/nsd -i -b 192.168.1.239:80 -u web -g web -t /usr/local/aolserver-4.0/click.tcl You must specify the -b on the command line, It does work. I. To remove yourself from this list: Send a message to [EMAIL PROTECTED] with the following text in the BODY of your message: signoff aolserver II. For a complete list of listserv options please visit: http://listserv.aol.com/ III. For more AOLserver information please visit: http://www.aolserver.com/ -- Brett Schwarz brett_schwarz AT yahoo.com I. To remove yourself from this list: Send a message to [EMAIL PROTECTED] with the following text in the BODY of your message: signoff aolserver II. For a complete list of listserv options please visit: http://listserv.aol.com/ III. For more AOLserver information please visit: http://www.aolserver.com/
Re: [AOLSERVER] 4.0 ClientData arg ??
On Tue, 2003-02-18 at 16:44, Andrew Piskorski wrote:
On Tue, Feb 18, 2003 at 07:20:14PM -0500, Jim Davidson wrote:
In a message dated 2/18/2003 5:53:54 PM Eastern Standard Time,
[EMAIL PROTECTED] writes:
- The BB_Nsv* C functions I've created in my nsvapi.c still aren't
working right in some cases, Tcl_GetCommandInfo is still claiming that
nsv_set, etc. don't exist. This is despite the fact that the thread
calling these is now being spawned AFTER full server initialization.
Are you using Ns_TclAllocateInterp to get your interp with a NULL server arg
within your Ns_ModuleInit? This would provide you a non-virtual server
Nope. Mostly all I do in my Ns_ModuleInit is init a Tcl hash table,
name some mutexes, and create a Tcl command. Like this:
static int BB_interpInit(Tcl_Interp *interp, void *data)
{
Tcl_CreateCommand(interp, myapi, BB_TclCmd, NULL, NULL);
return NS_OK;
}
As a side note, you may want to look into using the Object interface to
Tcl, i.e. Tcl_CreateObjCommand. Of cource there may be reasons why you
are doing it this way, but thought I would just mention it...
--brett
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] 4.0 ClientData arg ??
On Tue, 2003-02-18 at 17:21, Andrew Piskorski wrote: On Tue, Feb 18, 2003 at 05:12:38PM -0800, Brett Schwarz wrote: As a side note, you may want to look into using the Object interface to Tcl, i.e. Tcl_CreateObjCommand. Of cource there may be reasons why you are doing it this way, but thought I would just mention it... :) The reason was in this comment which I clipped out for brevity: Tcl_CreateCommand(interp, bbapi, BB_TclCmd, NULL, NULL); /* For Tcl 8.x, should probably be using Tcl_CreateObjCommand rather than Tcl_CreateCommand, but it doesn't compile right for me - I dunno why. [EMAIL PROTECTED], 2001/11/01 09:35 EST */ The Tcl overhead from my custom commands was never even showing up in my performance profiling, so once I learned more about using Tcl's object interface, I never bothered going back and trying to object-ify that again. I'll save it for a rainy day. :) Come to think of it, I had trouble with 3.5 compiling with object commands for a module I wrote. 4.0 came out, so I just starting using 4.0 instead. I haven't had any problems compiling with 4.0 and objects... --brett -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] 4.0 ClientData arg ??
On Sat, 2003-02-15 at 14:22, Andrew Piskorski wrote: Could someone please explain the different uses of the ClientData arg parameter to the Nsv C functions in AOLserver 3.x vs. 4.0? For example, let's look at the 3.x NsTclVSetCmd and the (equivalent but object-ified) 4.x NsTclNsvSetObjCmd functions (see below). I believe the ClientData typdef is a void * in both 3.x and 4.x. For these two NsTclNsv*Set*Cmd functions, in 3.x, arg is clearly just the single character 'g', while in 4.x, well basically I have no idea what arg is. Using the character 'g' like in 3.x definitely isn't right, as that makes my AOLserver segfault with a Bus Error. :) For 4.0 it looks like it is a NsInterp (look at LockArray). Could someone explain what's really going on with arg, please? Thanks! Looks like they are passing around a Tcl_Interp pointer as well as a NsInterp pointer in 4.0. Not sure why, I haven't examined the code that thoroughly yet. Previously, they were using it to pass 's' or 'g'; set or get I suppose. --brett -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] nspostgres and aolserver4beta1 and beta2
This is what I have in my nsd.tcl:
#
# Modules to load
#
ns_section ns/server/${servername}/modules
ns_param nsdb ${bindir}/nsdb${ext}
ns_param nssock ${bindir}/nssock${ext}
ns_param nslog ${bindir}/nslog${ext}
ns_param nsresult ${bindir}/nsresult${ext}
Notice the nsdb line...
--brett
On Mon, 2003-02-10 at 11:12, Wes James wrote:
I checked the nsd.tcl and I have these now:
ns_section ns/db/drivers
ns_param postgres ${bindir}/nspostgres.so
ns_section ns/db/pools
ns_param main Main Pool
ns_section ns/db/pool/main
ns_param Driver postgres
ns_param Connections 5
ns_param DataSource localhost::pgdb
#ns_param User nsadmin
#ns_param Password yourpassword
ns_param Verbose Off
ns_param LogSQLErrors On
ns_param ExtendedTableInfo On
# ns_param MaxOpen 10
# ns_param MaxIdle 10
ns_section ns/server/${servername}/db
ns_param Pools *
ns_param DefaultPoolmain
ns_section ns/server/${servername}/modules
ns_param nssock ${bindir}/nssock.so
ns_param nslog ${bindir}/nslog.so
ns_param postgres ${bindir}/nspostgres.so
And when I run nsd now it I get:
[10/Feb/2003:12:06:37][5838.8192][-main-] Warning: modload: could not load
/usr/local/aolserver/bin/nspostgres.so:
/usr/local/aolserver/bin/nspostgres.so: undefined symbol: Ns_TclDbGetHandle
[10/Feb/2003:12:06:37][5838.8192][-main-] Fatal: modload: failed to load
module '/usr/local/aolserver/bin/nspostgres.so'
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] AOLserver 4.0 Beta available!
I noticed this was not under the NEWS section at www.aolserver.com ... I didn't know if that was on purpose, or not... --brett On Fri, 2003-01-24 at 05:36, Elizabeth Thomas wrote: The first beta release of AOLserver 4.0 is now available with CVS tag aolserver_v4_r0_beta_1. It is also available via the Source Forge download page: https://sourceforge.net/project/showfiles.php?group_id=3152release_id=135781 Please report bugs via SourceForge at: https://sourceforge.net/tracker/?group_id=3152atid=103152 with group aolserver_v4_r0_beta_1 Test On! Elizabeth Thomas Principal Software Engineer America OnLine, Inc. -- Brett Schwarz brett_schwarz AT yahoo.com
[AOLSERVER] Updates for 4.0
I started looking into 4.0, and I noticed that there are some enhancements that could be made at both the C level and the Tcl level. For example, some of the commands are still not objectified at the C level, and at the Tcl level, some of the Tcl procs under modules/tcl/ could use some updating. I will probably do some of these things for my setup regardless, but I would like to have these changes incorporated into AS as well. Does the AOL Core Team accept enhancements? Thanks, --brett -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] OTish: Data abstraction facilities in Tcl
Humm, I never really found the short list of data types a hinderance for Tcl. I have always been able to manage with what is there, although I did write the record package (tcllib) to overcome one obstacle I had, but I did that more as an excercise really. If you really are stuck, and want to find some other stuff, then I know some people have loaded XOTcl into AOLserver, you may want to look into that. It gives you an OO facility. You may also want to look at TclX, which has other data types available (most notably, keyed lists). I really use lists heavily, and with Tcl8.4, list manipulation has improved quite a bit, so that's good news for me. I also use an array of lists quite a bit... I am just curious, can you give an example of something that is giving you a hard time? --brett On Fri, 2003-01-17 at 14:30, Peter M. Jansson wrote: (...that work in AOLserver.) So, I've been writing Tcl for AOLserver since it only ran Tcl 7.4, and you only had 3 choices for storing data in Tcl -- scalars, lists and arrays. Things like a list of arrays weren't possible; if you wanted to have such a thing, you had to fake it. I admit, I've gotten used to being able to do such things in Perl, where an array of hashes is an ordinary thing (or at least an array of hash references), and I have to say that I find it convenient. How do Tcl programmers normally do such things? Do they avoid messes like these, handle them in other languages, and provide Tcl commands to manipulate them? Do they use one or more Tcl add-ons? (If so, which ones work under AOLserver?) Or am I approaching the problem from the wrong perspective? What makes this an AOLserver question, rather than just a Tcl question, is that I want to make sure whatever I do would be supported within AOLserver. But other than that, it's not really an AOLserver question. Thanks, Pete. -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] Modules for AS4.0
I should have followed up earlier on this. Actually, what the problem was, is that I didn't have nsdb to be loaded in nsd.tcl file, so it wasn't getting loaded, DOH! So, you don't need to do any special linking... On Wed, 2003-01-15 at 08:52, Tim Moss wrote: You need to link with nsdb.lib - In AS4 nsdb has been separated out of nsd. regards, Tim Moss SiteSpeed Ltd Mobile: 0 77 9613 4891 Email: [EMAIL PROTECTED] Website:http://www.site-speed.com This email contains information from SiteSpeed Ltd, which may be privileged or confidential. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us immediately. -Original Message- From: AOLserver Discussion [mailto:[EMAIL PROTECTED]]On Behalf Of Brett Schwarz Sent: 15 January 2003 16:43 To: [EMAIL PROTECTED] Subject: Re: [AOLSERVER] Modules for AS4.0 I have that already in my source code, otherwise, it wouldn't compile ;^) On Wed, 2003-01-15 at 08:14, Lamar Owen wrote: On Tuesday 14 January 2003 18:31, Brett Schwarz wrote: Has the module interface changed in 4.0? I am trying to compile a C module I wrote for AS3.5. It compiles fine, but when I try to start AS, I get undefined symbol error: [14/Jan/2003:15:20:51][14736.1024][-main-] Warning: modload: could not load /usr/local/aolserver40/bin/nsresult.so: /usr/local/aolserver40/bin/nsresult.so: undefined symbol: Ns_DbGetRow [14/Jan/2003:15:20:51][14736.1024][-main-] Fatal: modload: failed to load module '/usr/local/aolserver40/bin/nsresult.so' #include nsdb.h -- Lamar Owen WGCR Internet Radio 1 Peter 4:11 -- Brett Schwarz brett_schwarz AT yahoo.com -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] Modules for AS4.0
I have that already in my source code, otherwise, it wouldn't compile ;^) On Wed, 2003-01-15 at 08:14, Lamar Owen wrote: On Tuesday 14 January 2003 18:31, Brett Schwarz wrote: Has the module interface changed in 4.0? I am trying to compile a C module I wrote for AS3.5. It compiles fine, but when I try to start AS, I get undefined symbol error: [14/Jan/2003:15:20:51][14736.1024][-main-] Warning: modload: could not load /usr/local/aolserver40/bin/nsresult.so: /usr/local/aolserver40/bin/nsresult.so: undefined symbol: Ns_DbGetRow [14/Jan/2003:15:20:51][14736.1024][-main-] Fatal: modload: failed to load module '/usr/local/aolserver40/bin/nsresult.so' #include nsdb.h -- Lamar Owen WGCR Internet Radio 1 Peter 4:11 -- Brett Schwarz brett_schwarz AT yahoo.com
[AOLSERVER] Modules for AS4.0
Has the module interface changed in 4.0? I am trying to compile a C module I wrote for AS3.5. It compiles fine, but when I try to start AS, I get undefined symbol error: [14/Jan/2003:15:20:51][14736.1024][-main-] Warning: modload: could not load /usr/local/aolserver40/bin/nsresult.so: /usr/local/aolserver40/bin/nsresult.so: undefined symbol: Ns_DbGetRow [14/Jan/2003:15:20:51][14736.1024][-main-] Fatal: modload: failed to load module '/usr/local/aolserver40/bin/nsresult.so' For 4.0, do I have to explicitly link in the object that has Ns_DbGetRow. I am not really familiar how AS loads modules... Anyways, has anyone run any modules for 4.0? Thanks, --brett -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] Problem with the compile
What Tcl version do you have installed? You will need 8.4 I believe. If you have multiple versions of Tcl installed, also make sure you are picking up the correct version. --brett On Sun, 2002-12-29 at 17:01, Damon wrote: Hi all, I have problem with the compiling of Aolserver Version 3.5.1 on Suse 8.1: After typing make to compile the source code I get the output as following: nsthreadtest.o: In function `DumperThread': nsthreadtest.o(.text+0x7a6): undefined reference to `Tcl_GetMemoryInfo' nsthreadtest.o: In function `main': nsthreadtest.o(.text+0xb03): undefined reference to `pthread_create' nsthreadtest.o(.text+0xb6f): undefined reference to `pthread_join' libnsthread.so: undefined reference to `pthread_getspecific' libnsthread.so: undefined reference to `pthread_detach' libnsthread.so: undefined reference to `pthread_key_create' libnsthread.so: undefined reference to `pthread_attr_setstacksize' libnsthread.so: undefined reference to `pthread_sigmask' libnsthread.so: undefined reference to `pthread_mutex_trylock' libnsthread.so: undefined reference to `pthread_cond_timedwait' libnsthread.so: undefined reference to `pthread_setspecific' collect2: ld returned 1 exit status make[1]: *** [nsthreadtest] Error 1 make[1]: Leaving directory `/usr/local/src/aolserver/nsthread' make: *** [all] Error 1 Can please anybody tell me how to solve the problem? cheers Damon -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] new result module
To be honest, I rarely ever use the -array option. I use the -list and
-llist options almost exclusively. Especially for Tcl 8.4, lists have
even become more attractive. I added the -array option, just for
versitility (more ways to do things).
On Tue, 2002-12-24 at 12:30, Tom Jackson wrote:
Brett,
I think you would have to factor in the problem of parsing the attribute
name out of the array element name, plus you can't easily search for an
element by name either.
# This is essentially the same as ns_set find
foreach {K V} [array get myarr *,some_attr] {
puts This is an element for 'some_atttr' with key $K: $V
}
OR
foreach K [array names myarr *,some_attr] {
puts This is an element for 'some_atttr' with key $K: $myarr($K)
}
Is this what you mean?
Ns_set supports mulitple attributes with the same name, as well as
attribute order. Arrays mess up the order, that is why they are faster,
for one.
Yes, an array element would get clobbered if there were 2 attributes of
the same name. However, I have always found it good practise to rename
attributes that have the same name as another attribute, using the SQL
'AS' keyword. But, I know that not everyone does this. Again, the -array
option is not a useful option in all cases.
Bottom line is that I wasn't looking to *replace* ns_set, just to add an
alternative; ns_set has alot of good features to it. In some cases,
ns_set might be the right choice; in other cases, it may not be the
right choice. I plan on adding more features to the module as well,
since this was just a first time pass at it...
Thanks for the feedback,
--brett
--
Brett Schwarz
brett_schwarz AT yahoo.com
[AOLSERVER] new result module
I was messing around writing a small module that retrieved results
differently than the standard way that AS does. I believe that it is
quite a bit quicker than the standard way (i.e. ns_set), but this is the
first time that I have written anything for AS at the C level, so I am
not sure if I am missing something here. In fact, I am quite surprised
that there hasn't been something like this in the core...which makes me
wonder if there is something inherently wrong with this approach, and I
am missing some vital concepts.
I tested it on a result set of 1000 tuples, with 5 attributes, and it
returns almost immediately (although the browser has trouble rendering
it that quickly). I am on a modest machine as well (dual PII @ 333MHZ
running SuSE Linux). The AS process, and the DB process (PG) are running
on the same machine (PG is not tuned at all); however, there is no other
web/db traffic at the moment. I also tested a result set with 10
attributes and 5 tuples. It took roughly 3 seconds to retrieve the
results, but of course my browser took quite a long time to render (in
fact I stopped it before it finished).
Anyways, there are alot of variables that might determine the actual
performance, but in general, I think these are quite a bit quicker.
So, why am I writing this?
1) To see if there is something fundamentally wrong with my approach
2) To see if my code makes sense (especially with respect to threading)
3) To share the code for anyone who wishes to use it
There are 3 different ways to gets results (more to come):
1) all within one list.
EXAMPLE
set sql SELECT att1, att2, att3 FROM table1;
set db [ns_db gethandle main]
set handle [ns_db select $db $sql]
if {[catch {set L [ns_result $db $handle -list]} err]} {
ns_db releasehandle $db
ns_returnnotice $conn 200 ERROR $err
}
set t table
foreach {a1 a2 a3} $L {
append t trtd$a1/tdtd$a2/tdtd$a3/td/tr
}
append t /table
...
2) List of lists
EXAMPLE
set sql SELECT att1, att2, att3 FROM table1;
set db [ns_db gethandle main]
set handle [ns_db select $db $sql]
if {[catch {set L [ns_result $db $handle -llist]} err]} {
ns_db releasehandle $db
ns_returnnotice $conn 200 ERROR $err
}
set t table
foreach T $L {
append t trtd[join $R /tdtd]/td/tr
}
append t /table
...
3) array (with tuple num and attr as index; i.e. myarr(tupno,attr)
EXAMPLE
set sql SELECT att1, att2, att3 FROM table1;
set db [ns_db gethandle main]
set handle [ns_db select $db $sql]
if {[catch {set L [ns_result $db $handle -array myarr]} err]} {
ns_db releasehandle $db
ns_returnnotice $conn 200 ERROR $err
}
set t table
foreach R [array names myarr] {
append ul TRTD $R /tdtd $myarr($R)/td/tr
}
append t /table
...
I plan to port this to 4.0 as well (i.e. objectify the commands), since
I want to start messing with 4.0.
Anyways, if anyone has any comments, I would appreciate them.
Thanks and happy holidays to everyone,
--brett
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] nspostgres 3.5 released.
I got it to compile, but I had to modify it a bit. I had to add nsdb.h to nspostgres.h. I haven't done any significant testing on it though... --brett On Mon, 2002-12-23 at 20:51, Marc Spitzer wrote: On Mon, 23 Dec 2002 19:14:33 -0500 Lamar Owen [EMAIL PROTECTED] wrote: Having been no bug reports on 3.5beta1, 3.5 is now released. The only change from 3.5beta1 is to comments, the README, and the ChangeLog. No code has changed. will this work with the aolserver 4 also? thanks marc -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] AOLserver Project Update
On Mon, 2002-11-11 at 10:22, Jeff Hobbs wrote:
Tcl arrays are associative. Tcl has pretty much 3 data structures:
- scalars
- lists
- arrays (which are associative)
The trick is that a list is really just a scalar with whitespace between
the elements, unless the element is enclosed by braces, so there's really
only two.
Woah, that last part isn't true at all, and is a common misconception
that leads people to think Tcl isn't up-to-snuff, which isn't true.
Lists are preserved in Tcl as arrays of Tcl_Obj's. If I do the following:
proc makeList {size} {
set output
Is there any difference in initializing output to list at first, or is
there no difference. IOW, should I initialize 'output' to a list object,
or does 'set output ' just create an untyped object?
set output [list] --- does this have any affect?
thanks,
--brett
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] Good reading: Yahoo moving to PHP
I know there were problems with threads/Java/Linux at one point (not sure if it was fixed). I think that's why there came about this green threads and native threads variants. Not sure if the same limitation is on FreeBSD. I *think* the problem was that it actually wouldn't distribute the threads across multiple CPUs, or something like thatI just faintly remember... --brett On Wed, 2002-10-30 at 06:54, Ayan George wrote: Jim, A library threads implementation doesn't necessarily mean poor performance. On a single CPU machine, it can actually be more effecient than a kernel implementation. Although the use of user threads precludes scaling threads across CPUs I think the FreeBSD threads library works well. Not to start a discussion about pthreads implementations, I just wanted to note that library implementations do not inherently perform poorly. -Ayan On Wed, 30 Oct 2002, Jim Davidson wrote: In a message dated 10/30/02 9:03:22 AM, [EMAIL PROTECTED] writes: The article mentions that they stayed away from Java because of the thread implementation on FreeBSD (presumably 4.x). Given that AOLserver uses threads heavily, does anyone have experience running it under FreeBSD? Is it OK? OK under load? Hi, I do some of the aolserver development on my FreeBSD laptop but I wouldn't run it there - default threads are user based which perform poorly. You can get AOLserver to link against a port of Linux threads which emulate system clone() based threads with BSD rfork() which may perform better. -Jim -- Brett Schwarz brett_schwarz AT yahoo.com
Re: [AOLSERVER] ns_get_multipart_formdata
Just curious, 'file tail' did not work for you? I thought it worked
cross platform...
--brett
On Wed, 2002-09-04 at 07:37, [EMAIL PROTECTED] wrote:
In a message dated 9/4/2002 10:08:21 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
Will someone give me a working example of how to upload a file?
First I wrote a proc (below) to drop the path and get the filename by itself.
I'm sure can be tweaked if I were to use string last instead of string
first, but for the most part it works for me. Also I have not tried this on
a non-windows machine so I'm not sure how it accomodates other platforms'
pathing schemas. I'm sure someone can fix it if it doesn't, though :) Since
100% of the users of the applications I write are on windows, it hasn't been
a priority to check that!
At any rate, once you have the file name by itself, you need to access the
uploaded data and copy that to wherever you want to put it. Posted file data
can be accessed through file_control_name.tmpfile. In the example below, the
file upload control on the form is named f.
snip
set myfile [dropPathDOS [ns_queryget f]]
#convert spaces in win32 filename to underscore
regsub -all $myFile _ myFile
ns_cp [ns_queryget f.tmpfile] [ns_info pageroot]/my_uploads_folder/$myFile
proc dropPathDOS { filepath } {
#
# #
# Drops the path from a DOS path\file name #
# #
#
set lastSlash 0
while { $lastSlash = 0 } {
set filepath [string range $filepath [expr $lastSlash + 1] end]
set lastSlash [string first \\ $filepath]
}
return $filepath
}
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] TCL varying arg lists
Try using 'eval'. It will expand the list for you and feed it to the
proc. So, for
proc xyzzy1 {arg1 args} {
return [eval xyzzy0 $arg1 $args]
}
proc xyzzy2 {arg1 args} {
return [eval xyzzy1 $arg1 $args]
}
You could also for xyzzy0 and xyzzy1, use a variable instead of 'args',
and treat that variable as a list. This would work unless these procs
are used elsewhere, where there truly is an unknown number of arguments.
HTH,
--brett
On Sat, 2002-05-25 at 14:28, [EMAIL PROTECTED] wrote:
TCL (we're on 7.6) has a special variable name args for variable
arguments. It seems to work fine for 1 level, but I'm confused if/how
it can be used for multiple procedure levels since it listifies its
argument on every procedure call.
For example, in this test program, passing args to lower level
procedures keeps modifying the argument, but I really want it to stay
the same:
proc xyzzy0 {arg1 args} {
return
arg1=$arg1
args=$args
llength=[llength $args]
1st el=[lindex $args 0]
}
proc xyzzy1 {arg1 args} {
return [xyzzy0 $arg1 $args]
}
proc xyzzy2 {arg1 args} {
return [xyzzy1 $arg1 $args]
}
ns_return 200 text/plain
xyzzy0: [xyzzy0 a1 a2 a3 a4 a5]
xyzzy1: [xyzzy1 a1 a2 a3 a4 a5]
xyzzy2: [xyzzy2 a1 a2 a3 a4 a5]
return
Here's the output:
xyzzy0:
arg1=a1
args={a2 a3} {a4 a5} --- this one is what I expected
llength=2
1st el=a2 a3
xyzzy1:
arg1=a1
args={{a2 a3} {a4 a5}}
llength=1
1st el={a2 a3} {a4 a5}
xyzzy2:
arg1=a1
args={{{a2 a3} {a4 a5}}}
llength=1
1st el={{a2 a3} {a4 a5}}
Is there a way to unlistify $args before passing it to a lower level
proc? Or is there a better/right way to do this?
Any advice appreciated.
Jim
--
Brett Schwarz
brett_schwarz AT yahoo.com
Re: [AOLSERVER] lappend_unique in C ?
You may want to look at TclX extension. Either try to load it into AS, or
look at the C code to customize it to your liking. It has extra list
functions as well as keyed lists.
http://tcl.activestate.com/man/tclx8.2/TclX.n.html
On Fri, 3 May 2002 20:44:19 -0400
Andrew Piskorski [EMAIL PROTECTED] wrote:
I sometimes need to assemble a list of unique values, while preserving
the order of the list. So when creating the list, I append a value to
a list, but only if the value isn't already on the list. In Tcl,
usually I do this with the bb_lappend_uniq procedure below. It uses a
helper Tcl array to maintain the state info of what values are already
on the list - presumably this is faster than calling lsearch every
time.
But does anyone have something to generate the same unique Tcl list,
but implemented in C? Or something else similar?
Reason I care, is I have lots of key/value pairs, and each key is made
up several strings concatenated together. For discussion, we'll
assume each key has the structure ABCD. And what I need, is a list
of all the unique SUB-keys AB. Right now, I do that in Tcl. But
that extra pass of grubbing through all my keys is dominating my
execution time - and it's too slow. (There's regexp involved, etc.)
But, I'm generating all those keys and sub-keys myself in my C code,
so rather than tuning my Tcl, the obvious thing to do is to assemble
my unique list of subkeys right there in C, and thus avoid having to
iterate through all my data an extra time in Tcl.
Note I still want to end up with a Tcl list of unique sub-keys, I just
want the implementation done in C. It would be extra nice if I could
pass in a Tcl array or NSV name from Tcl to maintain the state of
what's already on the list, because then I could pre-populate it if I
wanted to, in order to append to an already existing list, etc. But
that's frosting really, it'd be ok if the C code always starts with an
empty list and the state array/nav isn't accessible to anything
outside my C function.
Well, I've probably rambled on too long about something so simple, but
before I start implementing my simple solution (using Tcl_AppendResult
and a TclHashTable to maintain list state, I think), I figured I'd ask
if anyone else has already done it...
And of course, maybe somebody will point out some entirely different
and better way to do this, instead. :)
ad_proc bb_lappend_uniq {{
-key_prefix {}
} list_name item_name luniq_state_arr_name} {
Appends an item to a list emonly/em if that item is not already
on the list. In order to avoid doing an lsearch of the whole list
for every single lappend, takes a helper state array which is
emmust/em alrady have an array variable defined for each item
already on the list, if the list is not empty.
} {
upvar 1 $list_name L
upvar 1 $item_name item
upvar 1 $luniq_state_arr_name arr
if { [info exists arr(${key_prefix}${item})] } {
# Do nothing, this left_key is already on the list.
} else {
lappend L $item
set arr(${key_prefix}${item}) 1
}
}
ad_proc bb_luniq {L} {
Returns a list with all duplicates removed, and keeping the
original order.
p
Code taken from the
a href=http://mini.net/tcl/526.html;Tcl'ers Wiki/a
} {
set t {}
foreach i $L {if {[lsearch -exact $t $i]==-1} {lappend t $i}}
return $t
}
--
Andrew Piskorski [EMAIL PROTECTED]
http://www.piskorski.com
Re: [AOLSERVER] Exposing API's to other modules?
One of Ousterhout's greater contributions was the documentation of his team's programming standards. I apologize for ending this message without the link. But if they're not there already, maybe the AOLserver.com folks could link to them from their site. maybe this link? http://tcl.activestate.com/doc/ _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [AOLSERVER] 3.4 memory usage
Ok, I must have missed something, or might have been off of the cluetrain too long, but what exactly is 'zippy'? I did a google search, but I was getting mostly 'zippy the pinhead' and other weird stuff! Anyone have an URL or explanation? thanks, --brett On Wed, 17 Oct 2001 09:54:25 -0500 Rob Mayoff [EMAIL PROTECTED] wrote: +-- On Oct 17, Jim Wilcoxson said: In glancing at the zippy code, it looks like it used a power-of-2 algorithm, so I figured it might cause less heap fragmentation. I think that might be at least some of the problem. Does the standard gnu/linux memory allocator handle fragmentation poorly/well? I think the standard Linux allocator is dl-malloc, which as I recall has pretty good fragmentation properties. The reason zippy may use more memory is that it keeps a separate pool of memory for each thread. This reduces lock contention but means that less free memory is shared between threads. _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
[AOLSERVER] OT: content management
This is a bit off topic, but I thought some people on this list might know: I have a web site that links to video clips; such that when someone clicks on them, it invokes the player, and streams the video clip. What is the best way to update those video clips such that it does not interrupt any streaming, or corrupt any of the files. I guess this could be said for content in general, but this is my situation. Any insight would be appreciated. thanks, --brett _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [AOLSERVER] Configure tcl for AolServer 3.4
I have seem some of my tcl files not returning correctly, when I don't send back proper HTML headers... are your tcl files sending back HTML headers? Mark Hubbard wrote: I have the same trouble actually. I made param enabletclpages true and restarted the server, but it didn't seem to make any difference. It serves out .tcl files as-is, and then my tcl plug-in in my IE tries to run them, which of course fails. -- Mark Hubbard: [EMAIL PROTECTED] Microsoft Certified Professional Knowledge is Power. -Original Message- From: rana deepti [EMAIL PROTECTED] To: [EMAIL PROTECTED] [EMAIL PROTECTED] Date: Thursday, August 23, 2001 6:39 AM Subject: Configure tcl for AolServer 3.4 I've successfully installed AOLServer on WindowsNT according to Mark's Instructions. but now I want to run a tcl file. and I'm not able to do so I've no idea about tcl. how to configure it need helpregards... Deppti __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [AOLSERVER] Easy way to get raw POST data into a tcl variable?
Just curious, is there a *rough* estimate on when AOLserver 4 will be out? I am not trying to push, just want a ball park figure (days, weeks, months, etc). thanks, --brett Kriston Rehberg wrote: I've been given to understand that it's because the functions that handle data coming in from the client gobble up the data and don't leave it behind in an intact form. AOLserver 4 is going to allow seeking around the incoming data, headers and all. Kris _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [AOLSERVER] aolserver weekly chat
Rob, I would like to hop on, but I don't have anything specific to say. I have never used AIM...do you have to be a AOL member to use it? Is there a linux client? thanks, --brett --- Rob Mayoff [EMAIL PROTECTED] wrote: There used to be a weekly AOLserver chat on AIM. I can't find mention of it on aolserver.com now. As I recall, it used to be from 4 PM to 5 PM US Eastern time on Thursdays, in chat room AOLserver. I guess if nobody shows up I'll assume that it's been disbanded. I'll hang out there for an hour, so if you can't figure out how to get into the chat room, AIM me (quixotus) and I'll invite you. The time is 20:00 UTC, which is 4 PM US/Eastern, 3 PM US/Central, 1 PM US/Pacific. __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/
