Dear XOTcl comminity,

here comes the annoucement of patchlevel 3 for XOTcl. best regards

-gustaf

PS: Some other good news: ActiveState is planning to include XOTcl in the next ActiveTcl release.... ========================================================================================

XOTcl 0.85.3 ************

RECENT CHANGES relative to 0.85p2 are:

- Speedup for parameter methods:

Methods for accessing parameters are now 4 to 5 times faster. In the following example, "name" and "age" are parameters: Class Person -parameter {{age 0} name} Person p1 -age 99 -name -gustaf puts [p1 age] setting and retrieving of parameters has now roughly the same speed as the set methods (about 20% faster than instvars)

- Reduced memory consumption for objects and classes:

The size of XOTclObject structure went from 172 bytes to 68 bytes by

* allocating assertion structures on demand, and * by and by omitting in the default setup metadata

10 thousand XOTcl objects consume now about 7 MB of memory. There is still little potential for savings in the C-structure (by using bitmasks), but most of the memory consumed by XOTcl objects are in the tcl-memory structures for namespaces etc.

- Support for AOLserver:

XOTcl is now prepared for use in the AOL-server. The stubs for AOL-server are integrated in XOTcl (many thanks to Zoran Vasiljevic). The required patch for the AOL-Server is available from http://media.wu-wien.ac.at/download.html#aol

- Stub-library support:

XOTcl supports now the stub library. This means that it is less dependent on particular Tcl implementations. The support was quite tricky since some commands used by XOTcl (like Tcl_IncrObjCmd, Tcl_UpvarObjCmd, ...) are not exported by the stub library, and the solution has to work in the multithreaded AOL-server environment)

- various small optimizations and code cleanups

- some actiweb fixes (agent migration was broken)

For more details, please check the ChangeLog file.

Best regards,

Gustaf Neumann