cl-irc-devel March 2005

cl-irc-devel@common-lisp.net

4 participants
8 discussions

[cl-irc-devel] New release (from pre_mode_tracking tag)?
by Erik Huelsmann 07 May '05

07 May '05

The currently available release is quite old now, so I'm wondering if it isn't time to do a new release. The mode tracking code is too new, although it has been running on my system for a while, so I thought to use the pre_mode_tracking tag to generate a 0.7 release. This brings me to several questions: - What's the numbering scheme? - Is 0.10 deemed acceptable? Or is 0.9 considered to be last before 1.0? - Do the version numbers mean anything wrt guaranteed APIs? (like, for example, in the APR project; see http://apr.apache.org/versioning.html) - What requirements are there for a 1.0 release? Thanks for your reactions! bye, Erik. -- "Happy ProMail" bis 24. M�rz: http://www.gmx.net/de/go/promail Zum 6. Geburtstag gibt's GMX ProMail jetzt 66 Tage kostenlos!

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[cl-irc-devel] Circular references, garbage collection & library implementation
by Erik Huelsmann 22 Mar '05

22 Mar '05

Hi, Although I really want to work on stuff like DCC and writing CTCP helper functions for coloring etc., I think I need to address technical problems first. AFAICT, the current implementation will leak memory (ie won't be garbage collected correctly) if users and channels are not removed (using remove-user and remove-channel) before all references to a connection object are lost/broken. In such cases, although nothing refers to the connection object anymore, the channel may still contain user objects and the users will still hold channel objects in their channel lists. In other words: they won't be gc-able. I'd like to change the library implementation to resolve this issue. It will have some API consequences. The idea is that even though there may be a very large number of users, the number of channels will probably remain limited (several 10.000s max) and that several thousands of hash lookups are fast. [I never run the library with more than 20 channels...] So, I'd like to bring back the one-way hierarchy in the library by eliminating the channels list on the user object, replacing it by a channels method which serves the same purpose, but dynamically collects the result. Most user and channel operations will need a connection object to be passed in to function correcly though. bye, Erik. -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

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[cl-irc-devel] ANNOUNCE: cl-irc 0.7 release tarball
by Erik Huelsmann 21 Mar '05

21 Mar '05

Ok. So, after yesterdays discussion, I have checked out the pre_mode_tracking tag and created a release for it. I've put up the release tarball at ftp://common-lisp.net/pub/project/cl-irc/ and intend to change the link on cliki.net. I hope you object when you think something is going wrong :-) bye, Erik. -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

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[cl-irc-devel] MODE tracking (again)
by Erik Huelsmann 21 Mar '05

21 Mar '05

I know I sent a mail about this subject to this list somewhere around september last year. The response was to commit it to CVS, in order to allow review. So, as soon as I finish writing the log message I can commit it (hopefully tonight). Since the last time, I have rewritten most of the code. Below is the document I used to guide my design. I could commit that too, but was not planning to. Comments? ------------------------ Mode tracking 'design' -*- text -*- **** Goal: enabling the cl-irc library to track modes automatically **** Mode tracking requirements for cl-irc: 1) mode tracking for modes as defined by rfc281? 2) conformance with draft rfc on RPL_ISUPPORT 3) mode tracking for arbitrary (but defined) modes (which may have been advertised by RPL_ISUPPORT) 4) keeping channel modes and users list in sync where mode arguments are in fact user objects 5) application side modes to be attached to channels and users (my actual reason to implement it) 6) The application should be able to benefit from any new functions added to parse MODE command arguments. Ad 1 ==== >From a storage perspective there are 3 different kinds of modes in the rfc: - Those that can be 'on' or 'off' (being identified +e on dancer-ircd) - Those that hold a value when assigned (channel user limit and channel keyword come to mind) - Those that hold a list of values (ban and ban-except for example) Interpreting the stored value for 'on/off' modes as generalized boolean values, this leaves two different mode types: those that hold a single value and those that hold a list of values. >From a command perspective there are 4 kinds of modes in the rfc: - Those that take a parameter when (un)set, but which the client can send to the server without parameters in order to query the current setting - Those that always take a parameter, these have two sub-categories A) Those where the parameter is a nickname B) Those where the parameter isn't a nickname - Those that take a parameter when set but not when 'unset' - Those that never take a parameter The library will need to be able to parse each of these four mode types. When used as a client library, the optional argument form is not relevant however. The default hook will ignore that case. Ad 2+3 ====== The server can - through the RPL_ISUPPORT message - advertise which channel modes it supports. Conformance with the draft rfc means that the client needs to be able to parse arbitrary modes with the advertised properties. Next to that, the client may want to define its own modes (which are not automatically tracked). Ad 4 ==== Some of those modes described above may need to be kept in sync with users joining / leaving the channel. This is supposed to be automatic. Ad 5 ==== Yea, ok, well, the system needs to be extensible. **** Implementation decisions & consequences Ad 1+5 ====== The library defines two classes which are used to store modes: one for the single-value modes, the other for multi-value modes. In order to allow extensibility, an application can implement its own classes derived from the superclass `irc-mode' in order to make mode tracking automatic. Ad 2+3 ====== The library needs to be able to create its own mode objects in reaction to server messages setting mode values. For this purpose, it defines a mode-description structure which holds all values required. If applications define their own modes, they need to file such structures with the connection object to allow it to create the modes. The library integrates with the RPL_ISUPPORT framework by parsing the CHANMODES and PREFIX values in that response and creating mode-description structures for those modes itself. While doing so, it concatenates the PREFIX modes to the list from CHANMODES as described by the draft rfc. The modes in the PREFIX string take nicknames as their argument automagically. Ad 4 ==== For the library to be able to automatically maintain the list of properties while user join and leave messages are processed, it needs to know which modes contain users (or user objects) as their value(s). The mode-description structure is used for this purpose too. Ad 6 ==== The library will provide functions to: - Translate the CHANMODES and PREFIX arguments of the RPL_ISUPPORT response into a list of mode-description structures - Interpret the MODE command arguments and return a list of mode-change instructions. - Create custom mode descriptions (in order to create custom modes) - Manipulate and query mode values **** Implementation `decode-mode-command' should be able to process two types of commands: 1) MODE <target> <mode-char>+ 2) MODE <target> ([+|-]<mode-char>+ <mode-parameter>*)+ If the input does not match either pattern, the return value will be nil. The returned values are (values mode-list query-p) where query-p will be non-nil if the mode command matches the first syntax. If it matches the second pattern, the mode-list will be a list of lists describing the mode-changes as follows: ( [#\+|#\-] <mode-char> <mode-value>? ) (DONE) `mode-descs-from-isupport' returns a list of mode-description structures describing the modes in the CHANMODE and PREFIX values. The resulting list can be used for setting up automatic mode tracking for default hooks. (DONE) `parse-mode-arguments' returns a list of mode-change instructions. (DONE) `irc-mode', `single-value-mode' and `multi-value-mode' are classes which are used to track mode values. Applications can define their own derivatives in order to have custom behaviour for self-defined modes. (DONE) `add-mode', `get-mode', `set-mode', `unset-mode' and `remove-mode' operate on channel and user objects to manipulate modes. The effect of `set-mode' and `unset-mode' is determined by the class from which the mode was instantiated. (DONE) `has-mode-p' and `has-mode-value-p' operate on user and channel objects and return non-nil values if the given mode or mode/value are associated with it. More specifically, has-mode-value-p returns whatever `has-value-p' returns when invoked on the mode object (usually its value) and `has-mode-p' returns the mode object itself. (DONE) `mode-description' describes the different options which the application uses or expects over the connection from the server. It has the following fields: - char : character used over the connection to identify this mode - symbol : symbol the application uses to refer to this mode (the default symbols are keywords) - param-on-set-p, param-on-unset-p : indicate whether the library should expect an argument when receiving either on the operations; valid values are: nil (false), :optional, :optional-for-server or any other value (true) - nick-param-p : non-nil when the argument specifies a user (by nickname) - class : specifies the class to instantiate upon creation of a new mode (DONE) -------------------------------- EOF -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

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[cl-irc-devel] MODE tracking commit
by Erik Huelsmann 20 Mar '05

20 Mar '05

Since no commit mails are sent when I commit to the cl-irc repository, I send this mail. I just committed my MODE tracking work. Before committing, I set the 'pre_mode_tracking' tag. Afterwards the 'mode_tracking' one. That way, all work can be easily reverted. After a while both takes can be removed. Thanks in advance for any comments+review. bye, Erik. -- "Happy ProMail" bis 24. M�rz: http://www.gmx.net/de/go/promail Zum 6. Geburtstag gibt's GMX ProMail jetzt 66 Tage kostenlos!

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[cl-irc-devel] TODO: Have usocket first?
by Erik Huelsmann 19 Mar '05

19 Mar '05

In the TODO file, there's an item which says (right beneath 'Add DCC'): I'd like usocket first. What's usocket and has any work been done in that direction? Thanks! bye, Erik. -- "Happy ProMail" bis 24. M�rz: http://www.gmx.net/de/go/promail Zum 6. Geburtstag gibt's GMX ProMail jetzt 66 Tage kostenlos!

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[cl-irc-devel] Automatically unsubscribed?
by Erik Huelsmann 19 Mar '05

19 Mar '05

Well, it seems like I got unsubscribed somewhere in the last 6 months.... I'm back again. bye, Erik. -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

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[cl-irc-devel] Re: IRCd 2.11 server replies
by Erik Huelsmann 19 Mar '05

19 Mar '05

Hi! Thanks for the patch. Since it's submission, I moved :rpl_bounce from 5 to 10 because that's where it should be. Also, I introduced :rpl_isupport at 5. I've committed the rest of your patch a few moments ago. bye, Erik. In reply to: Hello list cl-irc is missing some server replies from IRCd 2.11 (ftp://ftp.irc.org/irc/server/irc2.11.0.tgz). Check this patch: --- variable.lisp.orig 2005-01-22 13:06:38.000000000 +0200 +++ variable.lisp 2005-01-22 13:23:24.000000000 +0200 @@ -34,6 +34,13 @@ (3 :rpl_created) (4 :rpl_myinfo) (5 :rpl_bounce) + (10 :rpl_bounce) ; From ircd 2.11 source + (15 :rpl_map) ; From ircd 2.11 source + (17 :rpl_mapend) ; From ircd 2.11 source + (18 :rpl_mapstart) ; From ircd 2.11 source + (20 :rpl_hello) ; From ircd 2.11 source + (42 :rpl_yourid) ; From ircd 2.11 source + (43 :rpl_savenick) ; From ircd 2.11 source (200 :rpl_tracelink) (201 :rpl_traceconnecting) (202 :rpl_tracehandshake) -- Ossi Herrala, OH8HUB PGP: 0x78CD0337 / D343 F9C4 C739 DFFF F619 6170 8D28 8189 78CD 0337 -- "Happy ProMail" bis 24. M�rz: http://www.gmx.net/de/go/promail Zum 6. Geburtstag gibt's GMX ProMail jetzt 66 Tage kostenlos!

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cl-irc-devel March 2005