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Revision: 1.195
Committed: Thu Oct 2 08:10:27 2008 UTC (15 years, 7 months ago) by root
Branch: MAIN
Changes since 1.194: +2 -0 lines
Log Message:
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File Contents

# User Rev Content
1 root 1.1 Revision history for Perl extension AnyEvent.
2    
3 root 1.191 4.3
4 root 1.193 - fixed a great number of bugs and corner cases in AnyEvent::Handle:
5     - fix a bug in where in SSL connect mode, the
6 root 1.191 client would first wait for some data by the server and
7     otherwise hang. (Reported and analyzed in an absolutely
8     exemplary manner by Adam Rosenstein).
9 root 1.193 - fix a bug in where SSL EOF would not be treated
10 root 1.191 as stream EOF, putting the connection into a hung state.
11     (Reported and analyzed in an absolutely exemplary manner by Adam
12     Rosenstein).
13 root 1.193 - fix a potential segfault when the TLS context
14 root 1.191 would go missing in a read callback (e.g. due to stoptls) -
15     Net::SSLeay of course makes no type checking whatsoever.
16 root 1.192 - AnyEvent::Handle will not stop the read watcher in TLS mode.
17     - AnyEvent::Handle->stoptls will send a TLS close notify
18     instead of simply destroying the stream now.
19 root 1.195 - fix a bug where large blocks of data written in TLS mode
20     would not be sent unless triggered by receives.
21 root 1.193 - on_drain will now take the tls write buffer into account.
22     - SSL operations have been streamlined a bit and should be faster
23     now, more to come, though.
24 root 1.194 - added a FAQ section, will document nontrivial issues in there.
25 root 1.191
26 root 1.190 4.234 Mon Sep 29 04:08:13 CEST 2008
27 root 1.189 - fix child watcher documentation: only child exits will be reported,
28     no trace events.
29 root 1.190 - mention SIGPIPE in AnyEvent::Handle.
30     - perl backend will now use POSIX::times as monotonic clock
31 root 1.188 when available and the monotonic clock option is not.
32 root 1.187 - run even without Time::HiRes in some cases now, but do not
33 root 1.190 provide sub-second accuracy (all *supported* perl versions have
34 root 1.187 Time::HiRes).
35    
36 root 1.186 4.233 Fri Aug 22 01:48:05 CEST 2008
37     - fix a bug in the testsuite, causing a hang.
38     - clarified lots of AnyEvent::Handle constructor arguments.
39    
40 root 1.185 4.232 Thu Aug 21 20:44:25 CEST 2008
41     - fix a bug in AnyEvent::Handle that could cause two fatal error
42     callbacks on EOF, which caused AnyEvent::HTTP to signal success twice
43     (testcase by Leon Brocard).
44     - clarified on_eof/on_error documentation a bit.
45    
46 root 1.184 4.231 Tue Jul 29 13:12:15 CEST 2008
47     - remove some debugging code left in AnyEvent::Util::fork_call
48     (and no, it's impossible to implement with the broken windows
49     perls without resource leaks or worse).
50    
51 root 1.183 4.23 Tue Jul 29 12:19:59 CEST 2008
52 root 1.177 - document the first parameter passed to condvar callbacks to be
53     the callback.
54 root 1.178 - add AnyEvent::Socket::{ntoa,aton} aliases.
55 root 1.180 - optimize the AE::Handle->push_read (line) for the default
56 root 1.179 eol marker.
57 root 1.180 - optimize push_read (packstring|storable) for small packets.
58 root 1.182 - invoke on_error callback when no on_eof callback is set.
59 root 1.180 - fix a bug in push_read (storable) of unknown impact.
60 root 1.177
61 root 1.176 4.22 Sun Jul 20 16:34:13 CEST 2008
62 root 1.174 - new function AnyEvent::Socket::parse_hostport.
63 root 1.175 - as the bulkheads at microsoft can't even get getprotobyname reliably
64     working on their shitty fucking broken os we need to hardcode
65     some common protocol numbers in AnyEvent::Socket. How can
66     people even bother with such a pile of shit as windows.
67 root 1.174
68 root 1.173 4.21 Thu Jul 17 14:40:05 CEST 2008
69 root 1.171 - INCOMPATIBLE CHANGE: AnyEvent::Util::fork_call now has a prototype
70     which is incompatible to previous invocation syntax.
71 root 1.172 - work around more windows perl bugs in fork_call. I cannot imagine
72     why anybody would bother implementing fork in such an obviously
73     unusable way.
74     - avoid calling $do_retry if the request has already finished in
75     AnyEvent::DNS, thus avoiding an exception (reported by Anatoly
76     K. Sharifulin).
77 root 1.170
78 root 1.169 4.2 Sat Jul 12 22:42:11 CEST 2008
79 root 1.165 - support an "interval" argument for repeating timers.
80 root 1.164 - fix a bug in the pure perl event loop that caused timers to
81     be delayed under some circumstances.
82 root 1.167 - implement optional argument checking via PERL_ANYEVENT_STRICT.
83 root 1.169 - not importing anything from Event causes it to malfunction
84     and not use Time::HiRes, work around this bug.
85     - more bug workarounds against the endlessly broken Tk module,
86 root 1.168 seems to work now on 32 bit machines, but less so on 64 bit.
87 root 1.164 - minor optimisations applied to most backends.
88    
89 root 1.163 4.161 Fri Jul 4 14:24:48 CEST 2008
90 elmex 1.162 - fixed the t/handle/02_write.t, it read after write, with the
91 root 1.163 assumption that all data could be written before read
92     (reported by Jim Razmus).
93 elmex 1.162
94 root 1.161 4.160 Thu Jul 3 04:02:21 CEST 2008
95 root 1.160 - re-registering signal watchers after unregistering one did
96     not work if a backend falls back on AnyEvent's default
97     implementation (also affected child watchers).
98 root 1.159 - new AnyEvent::Handle options: autocork and no_delay.
99    
100 root 1.158 4.152 Sun Jun 22 14:15:44 CEST 2008
101 root 1.159 - allow for 32-bit perls that implement shifts differently
102     on different architectures in parse_ipv4 (reported and
103 root 1.158 analysed by Keiichi DAIBA).
104    
105 root 1.157 4.151 Fri Jun 6 17:34:24 CEST 2008
106     - make sure specifying _only_ on_read and never pushing reads
107     works.
108    
109 root 1.155 4.15 Fri Jun 6 13:00:46 CEST 2008
110 root 1.154 - the pure perl backend would keep some watchers alive when more than
111     one watcher was registered for the same fd.
112 root 1.155 - new "packstring" and "storable" read and write types
113     for AnyEvent::Handle.
114 root 1.156 - allow on_eof handler to be called after on_error with EPIPE returns.
115 root 1.153 - do not immediately call on_read callback in handle constructor.
116    
117 root 1.152 4.14 Thu Jun 5 20:29:31 CEST 2008
118 elmex 1.149 - Fixed a bug in DNS SRV priority sorting.
119 root 1.150 - AnyEvent::Util::guard now reports runtime errors while
120     executing the guard block as warnings.
121 root 1.152 - handle 0-byte-reads just before EOF correctly in AnyEvent::Handle.
122 elmex 1.149
123 root 1.148 4.13 Thu Jun 5 00:47:59 CEST 2008
124 root 1.146 - AnyEvent::DNS only followed cname chains with length 2,
125     contrary to documentation. bumped it up to 10, thanks to
126     microsoft, the current broken-dns-config-king.
127 root 1.147 - AnyEvent::DNS didn't check for socket return status
128     but instead relied on perl not creating filehandles in that
129     case - too bad it gives you a bogus file handle (reported
130     and analysed by Vladimir Timofeev).
131 root 1.145 - fix queue management logic in AnyEvent::Handle:
132     when on_read was registered, the queue was empty
133     and no progress could be made AnyEvent::Handle would
134     enter an endless loop.
135     - correctly start reading again when the handle became
136     busy again after idling.
137 root 1.146 - correctly treat tls shut-downs as EOF condition
138     (for the time being, would be nice to have a callback for that).
139 root 1.145 - correctly call eof callback under all conditions
140     (hopefully).
141 root 1.146 - the timeout callback did not expect that $self can go
142     away any time.
143 root 1.145
144 root 1.144 4.12 Tue Jun 3 10:58:04 CEST 2008
145     - include AnyEvent::Intro, a tutorial for anyevent,
146     anyevent::socket and anyevent::handle.
147 root 1.143 - allow more options in on_error.
148 root 1.142
149 root 1.141 4.11 Fri May 30 23:42:25 CEST 2008
150 root 1.135 - INCOMPATIBLE CHANGE: replace ptr by real PTR lookup, provide
151     reverse_lookup and reverse_verify to replace it, support
152     v4mapped and v4compat addresses.
153 root 1.129 - provide more documentation for the resolver class.
154 root 1.130 - really replace longest run of :0: by :: in format_address,
155     also properly convert :: and ::1 again.
156 root 1.134 - support NAPTR record name and decode it.
157 root 1.133 - implement random weight sampling for SRV records, as per
158     rfc 2782.
159 root 1.137 - correctly abort on srv-record targets of ".".
160     - added AnyEvent::DNS::wait_for_slot.
161 root 1.138 - in the unlikely event of a virtual circuit connection
162     being invalidated by a delayed udp reply, AnyEvent::DNS
163     could die. this has been fixed.
164     - plug a probable memleak in the DNS vc code.
165     - use configured timeout also for VC request phase.
166 root 1.139 - implement timeout and max_outstanding methods
167     for resolver class.
168 root 1.140 - update version numbers in all modules.
169 root 1.129
170 root 1.128 4.1 Thu May 29 05:45:40 CEST 2008
171 root 1.123 - INCOMPATIBLE CHANGE: renamed xxx_ip functions to xxx_address
172     which mirrors their purpose better (old names still available
173     for a while). Also moved AnyEvent::DNS::addr to
174     AnyEvent::Socket::resolve_sockaddr.
175 root 1.127 - implement AnyEvent->time and AnyEvent->now.
176 root 1.124 - fix IPv6 support in pack_sockaddr.
177 root 1.123 - officially un-experimentalise all newly introduced code.
178     - support unix domain sockets everywhere by specifying
179     a host of "unix/" and the pathname as service.
180 root 1.126 - implement an activity timeout in AnyEvent::Handle.
181 root 1.122 - added a regex read type to AnyEvent::Handle.
182     - added a json read/write type to AnyEvent::Handle.
183 root 1.118 - always croak in on_error in AnyEvent::Handle.
184     - document how to subclass AnyEvent::Handle.
185 root 1.120 - implement AnyEvent::Util::fork_call.
186 root 1.127 - add support for IPv6 nameservers and nameserver statements.
187 root 1.121 - work around _yet_ _another_ windows perl bug in where empty
188     select masks cause errors in the pure perl backend (this
189     workaround cannot be implemented for the other event loops,
190     but EV also works around this).
191 root 1.123 - supply AnyEvent::Socket::address_type and make good use of it.
192 root 1.122 - clarify and fix the Handle documentation w.r.t $self vs. $handle
193     vs. callback arguments.
194 root 1.127 - add some recommends to the META.yml.
195 root 1.117
196 root 1.116 4.05 Mon May 26 19:44:06 CEST 2008
197     - some platforms ignore the rfc and prepend an extra sa_len member to
198     the sockaddr structure, cater for those. also use sockaddr_family,
199     didn't know it was there, but comes in handy for the workaround.
200 root 1.114 - undo the import WIN32 hack.
201    
202 root 1.113 4.04 Mon May 26 08:03:31 CEST 2008
203 root 1.109 - try to work around yet another windows bug: failed connects are reported
204 root 1.110 as if it were out-of-band data. windows users: you suck. Only
205     EV, Glib, Event and the pure perl backend can handle this condition.
206 root 1.111 - optimize write algorithm in AnyEvent::Handle.
207 root 1.106 - properly parse PERL_ANYEVENT_PROTOCOLS and use the info correctly.
208 root 1.112 - tcp_connect now properly iterates through all targets.
209 root 1.104 - check wether IPv6 sockets can actually be created, otherwise, disable ipv6
210 root 1.114 support entirely. also hardcode some AF_INET6 constants for the
211 root 1.107 sake of perl 5.8.
212 root 1.106 - vastly improved nameserver/suffix detection algorithm for windows
213     (still a hack...)
214     - try to use a fallback dns server if no dns servers could be found.
215 root 1.108 - splatter around some local $SIG{__DIE__}'s to work around bad
216     die handlers.
217 root 1.104
218 root 1.102 4.03 Sun May 25 05:05:57 CEST 2008
219 root 1.100 - work around perl bugs on windows, where perl returns undocumented
220     error codes for sysread, syswrite etc.
221 root 1.96 - fix AnyEvent::Handle::unshift_read to really unshift and not push.
222 root 1.97 - AnyEvent::Handle could sometimes stumble over 0-byte writes.
223 root 1.101 - fix unpack_sockaddr, now works for AF_INET6 sockaddr's.
224 root 1.100 - updated documentation.
225 root 1.103 - lots of workarounds for perl 5.8 quirks.
226 root 1.98 - implement a more flexible type system for both reads and writes
227     in AnyEvent::Handle.
228 root 1.101 - support IPv6 in tcp_server.
229     - pass local hostname and port to the prepare callback in tcp_server.
230 root 1.99 - make types extendable in AnyEvent::Handle.
231 root 1.100 - croak, not die, in AnyEvent::Handle;
232 root 1.96
233 root 1.95 4.0 Sat May 24 19:58:08 CEST 2008
234 root 1.88 - added (experimental) AnyEvent::DNS module.
235     - added (experimental) AnyEvent::Socket module.
236 root 1.93 - added (experiemntal) support for TLS/SSL in AnyEvent::Handle.
237 root 1.90 - make condvar->end call ->send as documented.
238     - make condvar constructor support the documented cb => argument.
239 root 1.94 - overload condvars so you can use them instead of code references.
240 root 1.93 - support more of the POSIX forms instead of a pure dotted quad for
241 root 1.89 verbatim ip addresses.
242 root 1.88 - AnyEvent::Socket::inet_aton will use AnyEvent::DNS now and not fork anymore.
243 root 1.87 - try very hard not to freeze on broken windows perls.
244 root 1.86 - make on_eof optional in AnyEvent::Handle.
245 root 1.83 - support service names in tcp_connect and tcp_server.
246 root 1.84 - work around netbsd/openbsd bug causing unix sockets not to
247 root 1.121 become writable until empty.
248 root 1.81 - only make a dummy read for error detection when getpeername
249     returns ENOTCONN.
250 root 1.181 - defend AnyEvent::Util::inet_aton against Coro::LWP's brutal
251 root 1.82 override.
252 root 1.91 - new AnyEvent::Guard::cancel.
253 root 1.81
254 root 1.80 3.5 Sat May 17 23:17:14 CEST 2008
255 root 1.79 - gracefully deal with systems not defining CLOCK_MONOTONIC
256     (as opposed to not supporting the clock itself, which worked in 3.41).
257 root 1.77 - added AnyEvent::Util::tcp_connect and AnyEvent::Util::tcp_server
258     helpers, to replace the ill-designed AnyEvent::Socket class.
259     - added some examples (eg/connect, eg/handle).
260     - added AnyEvent::Util::guard.
261     - AnyEvent::Util now exports most of its functions.
262 elmex 1.74 - fixed a bug in *_read_chunk, where the callback was called with $self as
263     first and second argument.
264 root 1.77 - simplified and fixed regex handling in AnyEvent::Handle::*_read_line.
265 root 1.72 - fix manpage condvars examples to use new syntax.
266 root 1.78 - considerably improve inet_aton with EV::ADNS backend to support
267     cname chains (common dns configuration bug, e.g. with www.google.de)
268     and aaaa records if no a record could be found.
269 root 1.72
270 root 1.71 3.41 Sun May 11 19:53:13 CEST 2008
271     - work around a bug in perl 5.8.8's local. Reported by Yi Ma Mao.
272    
273 root 1.70 3.4 Sun May 11 00:29:25 CEST 2008
274 root 1.181 - complete re-implementation of condvars with a hopefully much more useful
275 root 1.70 API (backward compatible functions exist but are undocumented).
276 root 1.69 - AnyEvent::Handle fully rewritten with a hopefully more powerful API
277     (still subject to change).
278 root 1.63 - take advantage of CLOCK_MONOTONIC, if available, in AnyEvent::Impl::Perl.
279 root 1.68 - provide AnyEvent::post_detect and @AnyEvent::post_detect, which
280 root 1.67 allows module authors to avoid forcing event loop detection.
281     (used by Coro::AIO, Coro::BDB, Coro::AnyEvent for example).
282 root 1.66 - remove coro backends: Coro now provides generic support for AnyEvent
283     via Coro::AnyEvent.
284 root 1.63
285 root 1.62 3.3 Mon Apr 28 09:51:06 CEST 2008
286     - added AnyEvent::Handle, AnyEvent::Socket and AnyEvent::Util modules.
287 root 1.55 - fix a bug in the pure perl backend that kept watchers alive
288     when multiple watchers were registered for the same fh/poll combo.
289 root 1.54 - add a benchmark section showing AnyEvent overhead and comparing
290     the different event loops with each other.
291 root 1.56 - prefer pure perl over tk when autoprobing, as it's about as fast,
292     but doesn't crash with many watchers.
293 root 1.62 - declare Qt support non-experimental.
294 root 1.56 - clarify the confusing section about the file descriptor being
295     kept alive.
296     - document the race between loading of an event module and
297     child processes exiting.
298 root 1.53 - support POE as "backend" (with some caveats, POE is not generic
299 root 1.54 enough, and darn slow).
300 root 1.53 - support Wx and Prima through POE.
301 root 1.60 - optimise perl backend to use 20% less memory and take advantage
302 root 1.62 of typical timeout behaviour. It can now compete with
303 root 1.60 select/poll-based C event loops in most cases (it is usually
304     faster than Event and Glib :).
305 root 1.59 - roughly cut EV memory use in half and increase its speed by 30%,
306 root 1.62 by removing undocumented functionality. Did something similar
307     to other event loops where possible.
308 root 1.53
309 root 1.50 3.2 Thu Apr 24 10:10:40 CEST 2008
310 root 1.51 - do not die when anyevent watchers are destroyed while running callbacks
311     in the pureperl backend (could only happen when two watchers are registered
312     for the same fh/poll combo).
313     - support autoloading for child watchers, was broken in all versions.
314 root 1.47 - implement PERL_ANYEVENT_MODEL env variable.
315 root 1.49 - (experimental) implement interface to the (very crashy/buggy) Event::Lib module.
316     - (experimental) implement interface to the Qt module (cannot be autoprobed).
317 root 1.52 - this release is IO:AnyEvent-proof.
318 root 1.47
319 root 1.46 3.12 Tue Apr 22 07:11:46 CEST 2008
320     - reinstate AUTHOR section that got lost somehow.
321     - do not hang in the testsuite with badly broken perls (activestate,
322     strawberry...), but instead diagnose the problem and continue.
323     - use INT instead of CHLD in an attempt to support broken windows perls
324     better (this decreases the test quality, unfortunately).
325     - do not send the signal to the process group
326     (no problem for CHLD, bad for INT :).
327    
328 root 1.45 3.11 Sat Apr 19 06:57:31 CEST 2008
329     - major documentation rework.
330     - document the fact that child watchers only watch for zombies.
331     - fix the child watcher example.
332    
333 root 1.43 3.1 Wed Apr 16 17:09:01 CEST 2008
334 root 1.40 - work around recurring bugs in Tk by dup'ing filehandles, the
335 root 1.43 only method with good success chances on Tk (the bugs apparently
336     don't get fixed anytime soon).
337 root 1.42 - lift the restriction of only one watcher per fh direction
338     (as the Tk bug workaround also lifts it and only Tk imposed
339     such strong limits).
340 root 1.41 - changed probe order to prefer coro adaptors.
341     - explain why recursion into the event loop is not supported
342     unless the backend supports it (only Coro::EV does without
343     any restrictions...).
344     - add simple manpages for all backend modules.
345 root 1.40
346 root 1.39 3.0 Mon Apr 7 21:30:23 CEST 2008
347 root 1.38 - Coro::Signal changed semantics, roll our own, also cleaning
348     up the Coro implementation in general.
349     - rename Coro backend to CoroEvent.
350     - add some decision helping paragraph to the manpage that should
351 root 1.44 help people to decide whether AnyEvent is the right thing for them.
352 root 1.38
353 root 1.37 2.9 Mon Jan 28 13:31:54 CET 2008
354     - update for EV 3.0 API changes.
355    
356 root 1.36 2.8 Sun Nov 25 15:06:03 CET 2007
357     - waitpid can validly return 0. accept this fact of life
358     instead of reporting it to any watchers.
359    
360 root 1.35 2.7 Fri Nov 23 11:41:14 CET 2007
361 root 1.34 - force use of AnyEvent::Impl::Perl in testsuite, there is
362     too much breakage outside AnyEvent.
363 root 1.35 - deliver signals synchronously in AnyEvent::Impl::Perl
364     or any other event loop that relies on AnyEvents child
365     watcher emulation. *Could* help with hanging testsuite
366     (except when Event or EV are installed).
367 root 1.34
368 root 1.33 2.6 Fri Nov 9 20:36:35 CET 2007
369 root 1.32 - fix bug in testsuite.
370     - move EV adaptor modules to AnyEvent.
371     - add Coro+EV adaptor module.
372 root 1.26
373 root 1.31 2.55 Tue Nov 6 17:41:32 CET 2007
374 root 1.27 - add EV to the list of supported event models.
375 root 1.30 - do not auto-reset pid watchers, pass pid and status to them.
376 root 1.29 - allow a pid of zero to watch for all children in child watchers.
377 root 1.27
378 root 1.25 2.54 Wed Jul 18 17:36:23 CEST 2007
379     - work around a perl bug that results in
380     BEGIN not safe after errors--compilation aborted without
381     any discernible reason or error message by once
382     again not use'ing strict.
383    
384 root 1.24 2.53 Sun Jul 8 10:51:53 CEST 2007
385     - make Glib interface work again (spotted by elmex).
386    
387 root 1.22 2.52 Wed Mar 7 18:36:16 CET 2007
388     - child watchers stopped working permanently when
389 root 1.23 all current child watchers were destroyed.
390 root 1.22
391 root 1.21 2.51 Mon Dec 11 21:33:24 CET 2006
392     - work around bugs in perl where eval "require Module" returns
393     true even if the module couldn't be loaded :/.
394    
395 root 1.20 2.5 Mon Dec 11 02:15:28 CET 2006
396 root 1.19 - avoid $AUTOLOAD because many perls corrupt it.
397 root 1.20 - AnyEvent::detect forces autodetection.
398     - implement signal watchers (experimental)
399     (Tk does not support async signals (<= 804.027 at least),
400     so they might get delayed indefinitely on Tk).
401     - implement child watchers (experimental).
402     - moved default condvar implementation into base module, simplifying
403     most implementation modules.
404 root 1.14
405 root 1.18 2.1 Fri Nov 24 15:50:48 CET 2006
406 root 1.16 - better docs.
407     - simple testsuite.
408 root 1.17 - added AnyEvent->one_event method for special purposes.
409 root 1.16
410 root 1.15 2.0 Wed Nov 1 02:21:30 CET 2006
411 root 1.13 - INCOMPATIBLE CHANGE: poll can now either be "r" or "w" but not both.
412     - INCOMPATIBLE CHANGE: io watcher callbacks have no arguments anymore.
413     - EXPERIMENTAL:
414     new pure-perl model added, AnyEvent now always finds a suitable
415     event model.
416 root 1.12 - improved documentation.
417     - reduced cpu overhead.
418    
419 root 1.11 1.02 Fri Jan 13 14:15:40 CET 2006
420     - add COPYING to clarify license.
421    
422 root 1.10 1.01 Sun Jan 8 05:48:09 CET 2006
423     - correctly cancel Event timers, avoid memory leaks.
424    
425 root 1.9 1.0 Sun Jan 8 05:40:58 CET 2006
426 root 1.8 - allow third-party interfaces to be added at runtime.
427     - fix version number.
428    
429 root 1.7 0.9 Fri Dec 30 02:25:41 CET 2005
430 root 1.6 - fixed errors in the documentation.
431 root 1.7 - going back to using $VERSION as "load check",
432     as suggested by Jörn Reder. Let's see why I stopped using
433     this method.
434     - add 'hup' to the list of events to receive for glib
435     and generate 'rw' events for it, as some versions of
436     glib seem to require this, while this breaks other
437     (older) versions of glib.
438     - implemented PERL_ANYEVENT_VERBOSE env variable.
439 root 1.6
440 root 1.5 0.3 Sun Dec 4 10:43:33 CET 2005
441     - no changes to the code.
442     - fixed documentation.
443     - clarified some corner cases.
444     - vastly improved documentation with a long example.
445    
446 root 1.3 0.2 Thu Dec 1 22:18:49 CET 2005
447 root 1.44 - check whether a valid method was called, to avoid endless loops.
448 root 1.4 - move condvars into their own class (cleaner, safer).
449     - don't die when some modules are not available.
450     - Tk is too broken to allow for words. Will work once Tk works.
451 root 1.3
452 root 1.2 0.1 Thu Dec 1 19:44:57 CET 2005
453     - spiced up and cleaned up for release.
454    
455 root 1.1 0.01 Tue Sep 21 18:12:09 CEST 2004
456     - original version; copied from Convert::Scalar.
457