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Revision: 1.398
Committed: Sat Jun 5 10:01:52 2010 UTC (13 years, 11 months ago) by root
Branch: MAIN
Changes since 1.397: +3 -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 1.392 TODO: docs signal for condvar
4    
5 root 1.398 - postpone differently in AnyEvent::Socket now, as
6     when not, canceling the connection attempt might fail
7     (found by Felix Antonius Wilhelm Ostmann).
8 root 1.397 - explicitly check for non-stream sockets in AE::Handle, too many
9     clueless people fell into the trap of this somehow working.
10 root 1.395 - simplified and reworked the "OTHER MODULES" section.
11    
12 root 1.394 5.261 Wed Apr 28 16:13:36 CEST 2010
13 root 1.393 - AF_INET6 was not properly used from Socket6 during configuration
14     time (found by Andy Grundman).
15    
16 root 1.392 5.26 Mon Apr 12 04:49:35 CEST 2010
17 root 1.389 - don't generate spurious readyness notifications when select
18     returns EINTR in the pure perl backend (analysed and testcase
19     by Bas Denissen).
20 root 1.391 - give same examples in SYNOPSIS sections of AnyEvent and AE.
21 root 1.390 - provider faster implementations for AE::time/now/now_update for
22     EV and Perl backends.
23     - provide faster AE::cv and AE::time implementations for all
24     backends.
25     - no longer support lower/mixed-case signal names (this was
26     never documented nor universally supported).
27     - some more memory µ-optimisations, and somewhat less messy
28     code to cope with both AnyEvent and AE APIs.
29 root 1.389
30 root 1.386 5.251 Sat Mar 13 00:58:21 CET 2010
31 root 1.387 - make test failed if it was run before make install on perl <=
32     5.8.8, and older versions of perl make our live very difficult,
33     so write constants.pl during Makefile.PL time.
34 root 1.386
35 root 1.384 5.25 Sat Mar 13 00:23:14 CET 2010
36 root 1.383 - fix a race condition in AnyEvent::Handle that would cause
37     a "bio_read: unsupported method" error (in _another_
38     ssl connection) after user code threw an exception.
39 root 1.385 - added AnyEvent::Handle->destroyed method.
40 root 1.376 - speed up AnyEvent::Socket::format_address and ::format_ipv6.
41 root 1.378 - the AnyEvent::Util::fh_nonblocking function worked only
42     by lucky accident on win32.
43 root 1.377 - smaller and faster AnyEvent::Util::fh_nonblocking.
44 root 1.379 - when the (required!) Time::HiRes module is missing, AnyEvent
45     did not fall back to built-in time properly.
46 root 1.381 - do not load Fcntl at runtime, saving memory and loading time.
47     - precompile a number of constants and use them instead of runtime
48     detection and eval.
49     - free detection code after detection and similar memory optimisations.
50 root 1.382 - Perl backend timer interval best effort drift has been improved
51 root 1.388 (same algorithm as EV).
52 root 1.385 - update unicode idna mapping table.
53 root 1.376
54 root 1.375 5.24 Tue Jan 5 11:39:43 CET 2010
55     - cygwin never reports errors from failed connects. 1.5 just gives
56     you continous readyness and EAGAIN, 1.7 is even more broken and
57     just hangs. work around both issues in a cygwin-specific hack.
58 root 1.374 - improve idle watcher documentation slightly.
59    
60 root 1.373 5.23 Sun Dec 20 23:48:00 CET 2009
61 root 1.372 - support IDNs in resolve_sockaddr, and therefore in tcp_connect.
62 root 1.373 - implement punycode_encode/decode, idn_nameprep,
63     idn_to_ascii and idn_to_unicode operations in AnyEvent::Util.
64 root 1.366 - provide $AE::VERSION.
65 root 1.367 - removed traces of "no strict 'refs'".
66 root 1.366
67 root 1.365 5.22 Sat Dec 5 03:51:13 CET 2009
68 root 1.358 - downgrade-or-fail in AnyEvent::Handle::push_write, to
69     diagnose encoding failures earlier and more succinctly.
70 root 1.359 (this works around bugs in perl, throwing away encoding info
71     when passing scalar data to extensions).
72 root 1.360 - add more examples to AnyEvent::Socket manpage.
73 root 1.361 - upgrade internal warning set to the same as common::sense 2.03.
74 root 1.362 - use pack "n/a*" for pre-5.8.9 perl compatibility in AnyEvent::DNS
75     (John Beppu).
76 root 1.364 - AnyEvent::Socket::inet_aton now properly supports ipv6, as documented.
77 root 1.363 - add google public dns servers to fallback server set and make sure
78     we load-balance properly between the three sets. also add all
79     fallback dns servers, not just a random one, to each dns config.
80 root 1.358
81 root 1.357 5.21 Thu Nov 19 02:48:47 CET 2009
82 root 1.356 - fix a problem where socket constants were called with parameters
83 root 1.355 (spotted by David Friedland).
84 root 1.356 - fork_call never use'd POSIX (reported by Daisuke Maki).
85 root 1.355 - improve perl 5.6 compatibility further (but it still won't work
86     unless you rip out everything but the core).
87 root 1.357 - prefer Net::DNS::Resolver over ipconfig, if installed, on win32.
88     uses 10MB of RAM, but doesn't open a console window. *sigh*.
89 root 1.355
90 root 1.354 5.202 Wed Oct 14 22:35:44 CEST 2009
91     - AnyEvent::DNS would unexpectedly clobber $_ under windows
92     (analysed by Matthias Waldorf).
93 root 1.353 - AnyEvent::Handle::run_cmd can now pass the PID of the
94     newly-created process, which is much less useful than it might
95     sound (based on patch by Yann Kerherve).
96    
97 root 1.352 5.201 Tue Sep 29 12:09:25 CEST 2009
98 root 1.350 - AnyEvent:Handle::on_starttls/on_stoptls methods were broken
99     (reported by Torsten Foertsch).
100 root 1.351 - common::sense 2.0 could cause tcp_server to throw an exception
101     (analysed by elmex).
102 root 1.350
103 root 1.349 5.2 Mon Sep 14 07:04:49 CEST 2009
104 root 1.347 - INCOMPATIBLE CHANGE: do no longer support register_read_type
105     and register_write_type in AnyEvent::Handle, instead support
106     package names (the facility was mostly abused).
107 root 1.349 - implement "packagename-as-read/write type" support in
108     AnyEvent::Handle.
109 root 1.345 - AnyEvent::Handle: new options "keepalive" and "oobinline".
110 root 1.346 - oobinline set by default to avoid security issues.
111 root 1.349 - the pure-perl event loop backend wrongly detected times() fallback
112     support (spotted by Pavel Boldin).
113 root 1.345
114 root 1.344 5.12 Tue Sep 1 20:26:50 CEST 2009
115 root 1.343 - be more lenient when parsing resolv.conf files, as some people
116     use hashmarks as comment indicator inside directives (reported
117     by Michael S. Fischer).
118     - use same set of warnings as common::sense 2.0.
119 root 1.342 - fix a potential 32 bit overflow issue due to perl having problems
120     with large hex constants in the Perl backend.
121     - do not use the slower 5.6 version fo the enc_name code in AnyEvent::DNS
122     by default.
123 root 1.343 - fix some prototypes.
124 root 1.344 - (optionally) require Async::Interrupt 1.02.
125 root 1.343 - replace opendns fallbacks by verizon/level3 public dns servers.
126 root 1.342
127 root 1.339 5.112 Fri Aug 21 13:59:04 CEST 2009
128 root 1.338 - AnyEvent::Handle could cause hard crashes in Net::SSLeay when
129     using starttls with an illegal/uncreatable tls context.
130 root 1.339 - port to broken win32 perls.
131 root 1.338
132 root 1.337 5.111 Sun Aug 16 18:44:36 CEST 2009
133     - perl errornously requires sockaddr_un structures returned by the
134     kernel to have a specific length. work around this bug by padding
135     sockaddr_un structures (found to fail on OS X, as perl only uses
136     the correct code for GNU/Linux, but likely to fail on other
137     OSes as well).
138    
139 root 1.336 5.11 Wed Aug 12 17:49:37 CEST 2009
140 elmex 1.335 - fixed a bug in run_cmd with input from filename.
141 root 1.336 - create a json coder object when none is given in write direction
142     to reduce dependency on JSON.
143 elmex 1.335
144 root 1.334 5.1 Tue Aug 11 03:17:32 CEST 2009
145 root 1.333 - tcp_connect now reports the correct error in $!, not an unrelated
146     one (was broken since 4.91).
147     - AE::Handle did not properly clear rtimeout/wtimeout watchers
148     when retrying a tcp_connect.
149     - new functions: AnyEvent::Util::run_cmd and close_all_fds_except.
150 elmex 1.332 - fixed wrong documentation in AE::Socket.
151    
152 root 1.330 5.01 Mon Aug 10 03:16:32 CEST 2009
153     - last release broke EV child watchers :/.
154    
155 root 1.329 5.0 Sun Aug 9 17:32:09 CEST 2009
156     - officially introduce and document the AE API.
157 root 1.323 - lowering the timeout at runtime did not have immediate effect
158     in AnyEvent::Handle.
159 root 1.324 - AE::Handle now has separate and independent read and write timeout
160     settings.
161 root 1.326 - probe for Guard module when AnyEvent::Util is loaded, not at
162     runtime (Event doesn't like eval "use" from callbacks, and it avoids
163     exporting the probe function).
164 root 1.328 - Impl::IOAsync's io watchers did not use the filehandle emulation
165     code to work around it's watcher limits.
166     - work around IO::Async's problems with overloaded objects.
167     - try to disable wearnings inside IO::Async, it's just too buggy.
168 root 1.327 - do no longer use Event by default, only EV or Perl, Event is too buggy.
169 root 1.329 - hackishly provide fast AE:: interface when EV or Perl is the backend.
170 root 1.325 - inherit VERSION from AnyEvent::VERSION in most modules.
171 root 1.322
172 root 1.321 4.91 Thu Aug 6 15:42:45 CEST 2009
173 root 1.319 - AE::Handle::starttls could get out of sync when the read buffer
174     already contains some TLS handshake.
175 root 1.318 - AE::Handle did not properly free the TLS session, causing bigger
176     memory leaks in Net::SSLeay than expected (reported by toaster).
177 root 1.320 - AE::Socket::tcp_connect will now artificially delay invoking
178     the callback to avoid returning after invoking the callback.
179 root 1.321 - convert many internal watcher uses to AE API.
180 root 1.317
181 root 1.316 4.9 Sat Aug 1 11:07:01 CEST 2009
182 root 1.308 - Glib silently fails when registering a timeout with
183     a negative value, so avoid that.
184 root 1.315 - call condvar callback immediately when it is set
185     after the condition is already signalled.
186 root 1.314 - check rbuf_max condition only after trying to consume
187     data.
188 root 1.305 - normalise signal numbers to names when using the ae's
189     signal handling, but do not document this (yet).
190 root 1.308 - pure perl signal emulation did not properly set nonblocking
191     mode on the signal pipe on win32 (this is unlikely to have caused
192     any issues).
193 root 1.310 - new module: AnyEvent::Debug.
194 root 1.309 - AnyEvent::Strict now checks that a signal was specified
195     by name (not name or number).
196     - reduce memory footprint in typical cases by ~50kb by
197 root 1.308 only compiling signal code when necessary.
198 root 1.313 - add AnyEvent::Handle->rbuf_max.
199 root 1.311 - grab the AE namespace for future new API, implement stubs for
200     said future/alternative API.
201 root 1.315 - new function: AnyEvent::Socket::format_hostport.
202 root 1.305
203 root 1.303 4.881 Tue Jul 28 12:51:53 CEST 2009
204     - work around a bug in local in pre-5.10 perls, causing
205 root 1.304 AnyEvent::Handle to recurse when it should not
206 root 1.351 (analysed by elmex).
207 root 1.303
208 root 1.302 4.88 Tue Jul 28 04:04:37 CEST 2009
209 root 1.301 - re-bless the handle into a dummy package after calling
210     AnyEvent::Handle::destroy, so the user does not need to check
211     for errors after every push_write etc.
212 root 1.302 - do not attempt to run t/02_signals.t on obviously broken
213     platforms.
214 root 1.301
215 root 1.300 4.87 Sun Jul 26 02:06:16 CEST 2009
216 root 1.295 - do not attempt to linger when there is no longer a valid fh.
217 root 1.296 - enforce tls mode to be either accept or connect, do not simply
218     segfault in Net::SSLeay.
219 root 1.298 - AnyEvent::Handle can now call tcp_connect itself (new parameters
220 root 1.299 connect, on_prepare, on_connect and on_connect_error). Updated
221     tutorial accordingly.
222 root 1.297 - add AnyEvent::Impl::Irssi backend.
223 root 1.295
224 root 1.294 4.86 Mon Jul 20 23:52:29 CEST 2009
225     - since the verbose warning is not enough, explicitly document
226     that versions before 1.33 of Net::SSLeay are not secure.
227 root 1.292 - work around signal handling races in Event and (...) Event::Lib.
228 root 1.293 - try to align signal-race timer to full-second boundaries.
229     - work around Tk not liking negative timeouts.
230 root 1.292 - don't complain of different grades of environmental unfriendlyness
231 root 1.302 in IO::Async.
232 root 1.292
233 root 1.290 4.85 Sat Jul 18 06:16:14 CEST 2009
234 root 1.287 - nail the signal race problem in perl once and for all
235     (see $AnyEvent::MAX_SIGNAL_LATENCY).
236     - take advantage of Async::Interrupt if it is available.
237     - load Time::HiRes and Guard modules on demand only.
238     - add optional/recommended modules section to AnyEvent
239     documentation.
240 root 1.288 - reduce memory usage considerably (and reduce startup penalty)
241     by not using "strict", "warnings" and "overload" modules.
242 root 1.289 - work around buggy windows/openbsd perls and provide EBADMSG
243     and EPROTO ourselves when missing.
244     - improve perl 5.6 compatibility of the core event loop.
245     - made Net::SSLeay version 1.33 a soft requirement.
246 root 1.286
247 root 1.285 4.83 Fri Jul 17 16:56:26 CEST 2009
248 root 1.284 - implement AnyEvent::Socket::getprotobyname.
249 root 1.283 - AnyEvent::CondVar's will now detect recursive blocking
250 root 1.284 waits and will croak, as too many people fall into
251     this trap.
252 root 1.281 - AnyEvent::Handle will now call ->destroy on itself after
253     executing the on_error callback, instead of doing some
254     half-baked internal shutdown, for fatal errors.
255 root 1.282 - clarify on_eof behaviour w.r.t. the read queue and
256     on_read callbacks.
257 root 1.281 - ignore some possible spurious wake-ups in tcp_connect.
258 root 1.279
259 root 1.278 4.82 Sat Jul 11 00:34:55 CEST 2009
260 root 1.277 - POE and Event backends didn't accept some callable objects as
261     callbacks.
262 root 1.275 - use Config module instead of POSIX module to detect signal names
263     in AnyEvent::Strict and AnyEvent::Impl::EventLib, as the POSIX
264     module doesn't even have all POSIX signals :/.
265 root 1.276 - use more workarounds around the many refcnt/corruption bugs in
266     Event::Lib.
267     - work around a race condition in perl's select, causing t/03_child.t
268     to rarely fail.
269 root 1.275
270 root 1.274 4.81 Thu Jul 9 10:30:30 CEST 2009
271 root 1.272 - AnyEvent::Handle didn't properly diagnose write errors
272     (it expected -1 from syswrite, how lame... :).
273 root 1.268 - support file descriptors in addition to file handles
274     in AnyEvent->io.
275 root 1.265 - new env variables: PERL_ANYEVENT_RESOLV_CONF,
276 root 1.266 PERL_ANYEVENT_MAX_OUTSTANDING_DNS, PERL_ANYEVENT_CA_FILE
277     and PERL_ANYEVENT_CA_PATH.
278 root 1.267 - provide a sensible synopsis section for AnyEvent::TLS.
279 root 1.273 - add a "supported backends" section to the manpage.
280 root 1.270 - added simple io watcher test to testsuite, using a
281     portable_socketpair.
282 root 1.271 - tried to improve the stability of the Event::Lib backend,
283     YMMV.
284 root 1.265
285 root 1.264 4.8 Mon Jul 6 23:45:16 CEST 2009
286 root 1.261 - AnyEvent::DNS did not properly follow CNAME records with
287     uppercase targets.
288 root 1.262 - AnyEvent::DNS would errornously return AAAA records
289     with v4 mapped addresses (a faulty record) as ipv4 addresses,
290     causing AnyEvent::Socket to throw an exception.
291 root 1.260 - added new module AnyEvent::TLS for easier SSL/TLS context
292     creation, with many options including hostname verification,
293     secure default configuration, lots of documentation and,
294     predefined diffie-hellman keys for perfect forward security
295     and much more. get it while it's still fresh!
296     - use AnyEvent::TLS in AnyEvent::Handle for context management.
297 root 1.256 - load AnyEvent::Handle only on demand in AnyEvent::DNS,
298     so AnyEvent::Socket users have smaller memory footprint
299     in the common case.
300 root 1.258 - add AnyEvent::Handle->push_shutdown method.
301     - add an additional error message parameter to AnyEvent::Handle's
302     on_error callback (for TLS, $! is still available).
303 root 1.263 - add AnyEvent::Handle on_starttls/on_stoptls callbacks.
304 root 1.257 - make AnyEvent::Handle more robust against early conenction
305     failures (during new), and return C<undef> in that case
306     from the constructor.
307 root 1.259 - AnyEvent::Handle will now try to load only JSON::XS first,
308     then fall back to JSON.
309 root 1.262 - format_ipv4/format_ipv6 are now exported by default, for symmetry,
310     and because it was documented that way.
311 root 1.256
312 root 1.258 4.451 Fri Jul 3 00:28:58 CEST 2009
313     - do not clear rbuf when shutting down an AnyEvent::Handle
314     object - doing so breaks AnyEvent::HTTP.
315    
316 root 1.255 4.45 Mon Jun 29 22:59:26 CEST 2009
317     - a write error could cause AnyEvent::Handle to create
318     an I/O watcher with an undefined $fh.
319 root 1.251 - special-case mapped ipv4 addresses in both
320     AnyEvent::Socket::format_address and parse_address,
321     to treat them just like ipv4 addresses.
322 root 1.254 - updated and overhauled the AnyEvent::Intro doc.
323 root 1.252 - implement AnyEvent::Socket::format_ipv4/ipv6.
324     - slightly speed up portable_pipe/socketpair.
325 root 1.255 - expand condvar begin/end documentation.
326 root 1.250
327 root 1.249 4.42 Fri Jun 26 08:32:18 CEST 2009
328 root 1.248 - preliminary and neccesarily incomplete support for IO::Async.
329 root 1.247 - reset SIGCHLD to DEFAULT when AnyEvent is loaded, in
330     case it was set to IGNORE, to ensure we can catch child statuses
331     even when the calling env acts stupidly.
332 root 1.248 - updated benchmarks with IO::Async, which performs very well.
333 root 1.247
334 root 1.245 4.412 Wed Jun 24 01:35:57 CEST 2009
335 root 1.242 - support an "untaint" attribute for AnyEvent::DNS
336     and set it on the default resolver.
337 root 1.241 - implement and document AnyEvent::Impl::Perl::loop.
338 root 1.242 - remove all anyevent-env variables from %ENV
339     when running in tainted mode.
340 root 1.244 - mention and extend the IO::Lambda benchmark.
341 root 1.241
342 root 1.240 4.411 Sun Jun 7 18:48:02 CEST 2009
343 root 1.239 - do not try to use F_SETFD on windows.
344    
345 root 1.238 4.41 Thu May 14 06:40:11 CEST 2009
346 root 1.236 - work around issues in older perls (5.8.0?) when
347     a signal handler is deleted from the %SIG hash.
348 root 1.237 - use POSIX::_exit in child test, to avoid running
349     destructors.
350     - speed up CHLD handling by relying on SIGCHLD being
351     synchronously delivered, even when we roll our own
352     implementation.
353 root 1.238 - AnyEvent::DNS: add the "dname" resource record name
354     for cosmetic reasons.
355 root 1.235
356 root 1.234 4.4 Sun Apr 26 20:12:33 CEST 2009
357     - implemented idle watchers, where applicable.
358 root 1.232 - AnyEvent->time died when Event backend was in use.
359     - fix a memleak in the Tk backend.
360     - sped up Tk timer handling.
361 root 1.233 - clip negative "after" values to 0 in AnyEvent::Impl::Event
362     to avoid spamming out warning messages.
363 root 1.232 - fix Qt timers without interval.
364 root 1.242 - avoid Qt zero-timeout special case, in old libqt's.
365 root 1.232
366 root 1.231 4.352 Mon Apr 20 16:31:11 CEST 2009
367 root 1.229 - fix AnyEvent::Strict error messages for child watchers.
368 root 1.230 - fix/update Makefile.PL "recommends" versions.
369     - add AnyEvent->now_update.
370 root 1.229
371 root 1.228 4.351 Sat Apr 11 07:56:14 CEST 2009
372 root 1.225 - actually make the signal pipe work under win32.
373 root 1.227 - localise $! in signal handler to avoid changing $!, although
374     perl itself does not seem to save/restore errno either.
375 root 1.226 - set the cloexec flag on the signal pipe (normally set by perl too).
376 root 1.225
377 root 1.224 4.35 Fri Mar 27 11:48:20 CET 2009
378 root 1.220 - event models relying on AnyEvent's signal watcher emulation did
379     invoke the callback asynchronously, contradicting documentation
380     and causing signals to get lost (this includes AnyEvent's own
381     event loop). AnyEvent now uses the standard pipe trick to make
382     callback execution synchronous to the event loop.
383 root 1.224 - AnyEvent::Handle didn't free TLS context data on DESTROY
384 root 1.223 (patch by Pavel Shaydo).
385 root 1.220 - work around the ever-incompatibly-changing API of MakeMaker.
386 root 1.221 - document that changing global variables without restoring them
387     is a bad idea in Perl (noted by Adam Rosenstein).
388 root 1.224 - AnyEvent::Strict now barfs if ->io is passed a file.
389 root 1.220
390 root 1.219 4.34 Thu Feb 12 18:32:45 CET 2009
391 root 1.218 - separately buffer TLS read data, as otherwise the read queue could
392     deadlock as receiving data is not expected while draining the
393     read queue (which cna only happen with TLS).
394 root 1.214 - raise EBADMSG error on JSON decoding errors.
395 root 1.215 - fix some minor manpage bugs (reported by Maximilian Gaß).
396     - speed up select bitmask parsing quite a bit in the pure perl
397     backend.
398 root 1.216 - use CORE::select instead of just select in AnyEvent::Impl::Perl.
399 root 1.214
400 root 1.213 4.331 Tue Jan 6 21:07:25 CET 2009
401 root 1.212 - socketpair fails on many vista machines because vista has
402     completely broken accept/getpeername and getsockname functions,
403     so we provide our own socketpair emulation that kind of works
404     (AnyEvent::Util::portable_pipe).
405     - new function: AnyEvent::Util::portable_socketpair.
406 root 1.211 - take advantage of the Guard module if it exists.
407    
408 root 1.210 4.33 Fri Nov 21 02:35:40 CET 2008
409     - AnyEvent::Strict did errornously flag a fileno of 0 as
410     illegal.
411 root 1.206 - reduce memory usage and slightly speed up the pure perl backend
412     by only storing the file descriptor, not the file handle.
413 root 1.207 - add missing autocork method to AnyEvent::Handle (reported
414     by Adam Rosenstein).
415 root 1.209 - AnyEvent::DNS->resolve errornously documented an $rcode result
416 root 1.208 argument, but there isn't (spotted by Henrik Krohns).
417 root 1.209 - the naked truth about Tk - it's basically unmaintained.
418 root 1.206
419 root 1.205 4.32 Mon Nov 3 22:46:32 CET 2008
420 root 1.204 - fix AnyEvent::Socket::resolve_sockaddr to properly support
421     unix sockets again and choose a proper default for
422     the socket type.
423     - fix call to resolve_sockaddr in tcp_connect.
424    
425 root 1.203 4.31 Thu Oct 30 04:41:48 CET 2008
426 root 1.200 - implemented AnyEvent::Handle->destroy method.
427 root 1.203 - hint about unexpected effects in TLS mode.
428 root 1.200 - speed up AnyEvent::Impl::Perl by using more arrays
429     instead of hashes without the slightest loss of readability :)
430 root 1.201 - work around a perl argument refcounting bug.
431 root 1.202 - with some perl patches applied, AnyEvent now seems leak-free.
432 root 1.198
433 root 1.197 4.3 Fri Oct 3 09:18:43 CEST 2008
434 root 1.196 - AnyEvent will now install a no-op signal handler for SIGPIPE,
435     unless one has been installed already.
436 root 1.197 - warn about not loaidng AnyEvent::Impl::POE early enough
437     (patch by Adam Rosenstein).
438 root 1.390 - fixed a great number of bugs and corner cases in AnyEvent::Handle.
439 root 1.193 - fix a bug in where in SSL connect mode, the
440 root 1.191 client would first wait for some data by the server and
441 root 1.351 otherwise hang. (reported and analysed in an absolutely
442 root 1.191 exemplary manner by Adam Rosenstein).
443 root 1.193 - fix a bug in where SSL EOF would not be treated
444 root 1.191 as stream EOF, putting the connection into a hung state.
445 root 1.351 (reported and analysed in an absolutely exemplary manner by Adam
446 root 1.191 Rosenstein).
447 root 1.193 - fix a potential segfault when the TLS context
448 root 1.191 would go missing in a read callback (e.g. due to stoptls) -
449     Net::SSLeay of course makes no type checking whatsoever.
450 root 1.192 - AnyEvent::Handle will not stop the read watcher in TLS mode.
451     - AnyEvent::Handle->stoptls will send a TLS close notify
452     instead of simply destroying the stream now.
453 root 1.195 - fix a bug where large blocks of data written in TLS mode
454     would not be sent unless triggered by receives.
455 root 1.193 - on_drain will now take the tls write buffer into account.
456     - SSL operations have been streamlined a bit and should be faster
457     now, more to come, though.
458 root 1.194 - added a FAQ section, will document nontrivial issues in there.
459 root 1.191
460 root 1.190 4.234 Mon Sep 29 04:08:13 CEST 2008
461 root 1.189 - fix child watcher documentation: only child exits will be reported,
462     no trace events.
463 root 1.190 - mention SIGPIPE in AnyEvent::Handle.
464     - perl backend will now use POSIX::times as monotonic clock
465 root 1.188 when available and the monotonic clock option is not.
466 root 1.187 - run even without Time::HiRes in some cases now, but do not
467 root 1.190 provide sub-second accuracy (all *supported* perl versions have
468 root 1.187 Time::HiRes).
469    
470 root 1.186 4.233 Fri Aug 22 01:48:05 CEST 2008
471     - fix a bug in the testsuite, causing a hang.
472     - clarified lots of AnyEvent::Handle constructor arguments.
473    
474 root 1.185 4.232 Thu Aug 21 20:44:25 CEST 2008
475     - fix a bug in AnyEvent::Handle that could cause two fatal error
476     callbacks on EOF, which caused AnyEvent::HTTP to signal success twice
477     (testcase by Leon Brocard).
478     - clarified on_eof/on_error documentation a bit.
479    
480 root 1.184 4.231 Tue Jul 29 13:12:15 CEST 2008
481     - remove some debugging code left in AnyEvent::Util::fork_call
482     (and no, it's impossible to implement with the broken windows
483     perls without resource leaks or worse).
484    
485 root 1.183 4.23 Tue Jul 29 12:19:59 CEST 2008
486 root 1.177 - document the first parameter passed to condvar callbacks to be
487     the callback.
488 root 1.178 - add AnyEvent::Socket::{ntoa,aton} aliases.
489 root 1.180 - optimize the AE::Handle->push_read (line) for the default
490 root 1.179 eol marker.
491 root 1.180 - optimize push_read (packstring|storable) for small packets.
492 root 1.182 - invoke on_error callback when no on_eof callback is set.
493 root 1.180 - fix a bug in push_read (storable) of unknown impact.
494 root 1.177
495 root 1.176 4.22 Sun Jul 20 16:34:13 CEST 2008
496 root 1.174 - new function AnyEvent::Socket::parse_hostport.
497 root 1.175 - as the bulkheads at microsoft can't even get getprotobyname reliably
498     working on their shitty fucking broken os we need to hardcode
499     some common protocol numbers in AnyEvent::Socket. How can
500     people even bother with such a pile of shit as windows.
501 root 1.174
502 root 1.173 4.21 Thu Jul 17 14:40:05 CEST 2008
503 root 1.171 - INCOMPATIBLE CHANGE: AnyEvent::Util::fork_call now has a prototype
504     which is incompatible to previous invocation syntax.
505 root 1.172 - work around more windows perl bugs in fork_call. I cannot imagine
506     why anybody would bother implementing fork in such an obviously
507     unusable way.
508     - avoid calling $do_retry if the request has already finished in
509     AnyEvent::DNS, thus avoiding an exception (reported by Anatoly
510     K. Sharifulin).
511 root 1.170
512 root 1.169 4.2 Sat Jul 12 22:42:11 CEST 2008
513 root 1.165 - support an "interval" argument for repeating timers.
514 root 1.164 - fix a bug in the pure perl event loop that caused timers to
515     be delayed under some circumstances.
516 root 1.167 - implement optional argument checking via PERL_ANYEVENT_STRICT.
517 root 1.169 - not importing anything from Event causes it to malfunction
518     and not use Time::HiRes, work around this bug.
519     - more bug workarounds against the endlessly broken Tk module,
520 root 1.168 seems to work now on 32 bit machines, but less so on 64 bit.
521 root 1.164 - minor optimisations applied to most backends.
522    
523 root 1.163 4.161 Fri Jul 4 14:24:48 CEST 2008
524 elmex 1.162 - fixed the t/handle/02_write.t, it read after write, with the
525 root 1.163 assumption that all data could be written before read
526     (reported by Jim Razmus).
527 elmex 1.162
528 root 1.161 4.160 Thu Jul 3 04:02:21 CEST 2008
529 root 1.160 - re-registering signal watchers after unregistering one did
530     not work if a backend falls back on AnyEvent's default
531     implementation (also affected child watchers).
532 root 1.159 - new AnyEvent::Handle options: autocork and no_delay.
533    
534 root 1.158 4.152 Sun Jun 22 14:15:44 CEST 2008
535 root 1.159 - allow for 32-bit perls that implement shifts differently
536     on different architectures in parse_ipv4 (reported and
537 root 1.158 analysed by Keiichi DAIBA).
538    
539 root 1.157 4.151 Fri Jun 6 17:34:24 CEST 2008
540     - make sure specifying _only_ on_read and never pushing reads
541     works.
542    
543 root 1.155 4.15 Fri Jun 6 13:00:46 CEST 2008
544 root 1.154 - the pure perl backend would keep some watchers alive when more than
545     one watcher was registered for the same fd.
546 root 1.155 - new "packstring" and "storable" read and write types
547     for AnyEvent::Handle.
548 root 1.156 - allow on_eof handler to be called after on_error with EPIPE returns.
549 root 1.153 - do not immediately call on_read callback in handle constructor.
550    
551 root 1.152 4.14 Thu Jun 5 20:29:31 CEST 2008
552 elmex 1.149 - Fixed a bug in DNS SRV priority sorting.
553 root 1.150 - AnyEvent::Util::guard now reports runtime errors while
554     executing the guard block as warnings.
555 root 1.152 - handle 0-byte-reads just before EOF correctly in AnyEvent::Handle.
556 elmex 1.149
557 root 1.148 4.13 Thu Jun 5 00:47:59 CEST 2008
558 root 1.146 - AnyEvent::DNS only followed cname chains with length 2,
559     contrary to documentation. bumped it up to 10, thanks to
560     microsoft, the current broken-dns-config-king.
561 root 1.147 - AnyEvent::DNS didn't check for socket return status
562     but instead relied on perl not creating filehandles in that
563     case - too bad it gives you a bogus file handle (reported
564     and analysed by Vladimir Timofeev).
565 root 1.145 - fix queue management logic in AnyEvent::Handle:
566     when on_read was registered, the queue was empty
567     and no progress could be made AnyEvent::Handle would
568     enter an endless loop.
569     - correctly start reading again when the handle became
570     busy again after idling.
571 root 1.146 - correctly treat tls shut-downs as EOF condition
572     (for the time being, would be nice to have a callback for that).
573 root 1.145 - correctly call eof callback under all conditions
574     (hopefully).
575 root 1.146 - the timeout callback did not expect that $self can go
576     away any time.
577 root 1.145
578 root 1.144 4.12 Tue Jun 3 10:58:04 CEST 2008
579     - include AnyEvent::Intro, a tutorial for anyevent,
580     anyevent::socket and anyevent::handle.
581 root 1.143 - allow more options in on_error.
582 root 1.142
583 root 1.141 4.11 Fri May 30 23:42:25 CEST 2008
584 root 1.135 - INCOMPATIBLE CHANGE: replace ptr by real PTR lookup, provide
585     reverse_lookup and reverse_verify to replace it, support
586     v4mapped and v4compat addresses.
587 root 1.129 - provide more documentation for the resolver class.
588 root 1.130 - really replace longest run of :0: by :: in format_address,
589     also properly convert :: and ::1 again.
590 root 1.134 - support NAPTR record name and decode it.
591 root 1.133 - implement random weight sampling for SRV records, as per
592     rfc 2782.
593 root 1.137 - correctly abort on srv-record targets of ".".
594     - added AnyEvent::DNS::wait_for_slot.
595 root 1.138 - in the unlikely event of a virtual circuit connection
596     being invalidated by a delayed udp reply, AnyEvent::DNS
597     could die. this has been fixed.
598     - plug a probable memleak in the DNS vc code.
599     - use configured timeout also for VC request phase.
600 root 1.139 - implement timeout and max_outstanding methods
601     for resolver class.
602 root 1.140 - update version numbers in all modules.
603 root 1.129
604 root 1.128 4.1 Thu May 29 05:45:40 CEST 2008
605 root 1.123 - INCOMPATIBLE CHANGE: renamed xxx_ip functions to xxx_address
606     which mirrors their purpose better (old names still available
607     for a while). Also moved AnyEvent::DNS::addr to
608     AnyEvent::Socket::resolve_sockaddr.
609 root 1.127 - implement AnyEvent->time and AnyEvent->now.
610 root 1.124 - fix IPv6 support in pack_sockaddr.
611 root 1.123 - officially un-experimentalise all newly introduced code.
612     - support unix domain sockets everywhere by specifying
613     a host of "unix/" and the pathname as service.
614 root 1.126 - implement an activity timeout in AnyEvent::Handle.
615 root 1.122 - added a regex read type to AnyEvent::Handle.
616     - added a json read/write type to AnyEvent::Handle.
617 root 1.118 - always croak in on_error in AnyEvent::Handle.
618     - document how to subclass AnyEvent::Handle.
619 root 1.120 - implement AnyEvent::Util::fork_call.
620 root 1.127 - add support for IPv6 nameservers and nameserver statements.
621 root 1.121 - work around _yet_ _another_ windows perl bug in where empty
622     select masks cause errors in the pure perl backend (this
623     workaround cannot be implemented for the other event loops,
624     but EV also works around this).
625 root 1.123 - supply AnyEvent::Socket::address_type and make good use of it.
626 root 1.122 - clarify and fix the Handle documentation w.r.t $self vs. $handle
627     vs. callback arguments.
628 root 1.127 - add some recommends to the META.yml.
629 root 1.117
630 root 1.116 4.05 Mon May 26 19:44:06 CEST 2008
631     - some platforms ignore the rfc and prepend an extra sa_len member to
632     the sockaddr structure, cater for those. also use sockaddr_family,
633     didn't know it was there, but comes in handy for the workaround.
634 root 1.114 - undo the import WIN32 hack.
635    
636 root 1.113 4.04 Mon May 26 08:03:31 CEST 2008
637 root 1.109 - try to work around yet another windows bug: failed connects are reported
638 root 1.110 as if it were out-of-band data. windows users: you suck. Only
639     EV, Glib, Event and the pure perl backend can handle this condition.
640 root 1.111 - optimize write algorithm in AnyEvent::Handle.
641 root 1.106 - properly parse PERL_ANYEVENT_PROTOCOLS and use the info correctly.
642 root 1.112 - tcp_connect now properly iterates through all targets.
643 root 1.104 - check wether IPv6 sockets can actually be created, otherwise, disable ipv6
644 root 1.114 support entirely. also hardcode some AF_INET6 constants for the
645 root 1.107 sake of perl 5.8.
646 root 1.106 - vastly improved nameserver/suffix detection algorithm for windows
647     (still a hack...)
648     - try to use a fallback dns server if no dns servers could be found.
649 root 1.108 - splatter around some local $SIG{__DIE__}'s to work around bad
650     die handlers.
651 root 1.104
652 root 1.102 4.03 Sun May 25 05:05:57 CEST 2008
653 root 1.100 - work around perl bugs on windows, where perl returns undocumented
654     error codes for sysread, syswrite etc.
655 root 1.96 - fix AnyEvent::Handle::unshift_read to really unshift and not push.
656 root 1.97 - AnyEvent::Handle could sometimes stumble over 0-byte writes.
657 root 1.101 - fix unpack_sockaddr, now works for AF_INET6 sockaddr's.
658 root 1.100 - updated documentation.
659 root 1.103 - lots of workarounds for perl 5.8 quirks.
660 root 1.98 - implement a more flexible type system for both reads and writes
661     in AnyEvent::Handle.
662 root 1.101 - support IPv6 in tcp_server.
663     - pass local hostname and port to the prepare callback in tcp_server.
664 root 1.99 - make types extendable in AnyEvent::Handle.
665 root 1.100 - croak, not die, in AnyEvent::Handle;
666 root 1.96
667 root 1.95 4.0 Sat May 24 19:58:08 CEST 2008
668 root 1.88 - added (experimental) AnyEvent::DNS module.
669     - added (experimental) AnyEvent::Socket module.
670 root 1.93 - added (experiemntal) support for TLS/SSL in AnyEvent::Handle.
671 root 1.90 - make condvar->end call ->send as documented.
672     - make condvar constructor support the documented cb => argument.
673 root 1.94 - overload condvars so you can use them instead of code references.
674 root 1.93 - support more of the POSIX forms instead of a pure dotted quad for
675 root 1.89 verbatim ip addresses.
676 root 1.88 - AnyEvent::Socket::inet_aton will use AnyEvent::DNS now and not fork anymore.
677 root 1.87 - try very hard not to freeze on broken windows perls.
678 root 1.86 - make on_eof optional in AnyEvent::Handle.
679 root 1.83 - support service names in tcp_connect and tcp_server.
680 root 1.84 - work around netbsd/openbsd bug causing unix sockets not to
681 root 1.121 become writable until empty.
682 root 1.81 - only make a dummy read for error detection when getpeername
683     returns ENOTCONN.
684 root 1.181 - defend AnyEvent::Util::inet_aton against Coro::LWP's brutal
685 root 1.82 override.
686 root 1.91 - new AnyEvent::Guard::cancel.
687 root 1.81
688 root 1.80 3.5 Sat May 17 23:17:14 CEST 2008
689 root 1.79 - gracefully deal with systems not defining CLOCK_MONOTONIC
690     (as opposed to not supporting the clock itself, which worked in 3.41).
691 root 1.77 - added AnyEvent::Util::tcp_connect and AnyEvent::Util::tcp_server
692     helpers, to replace the ill-designed AnyEvent::Socket class.
693     - added some examples (eg/connect, eg/handle).
694     - added AnyEvent::Util::guard.
695     - AnyEvent::Util now exports most of its functions.
696 elmex 1.74 - fixed a bug in *_read_chunk, where the callback was called with $self as
697     first and second argument.
698 root 1.77 - simplified and fixed regex handling in AnyEvent::Handle::*_read_line.
699 root 1.72 - fix manpage condvars examples to use new syntax.
700 root 1.78 - considerably improve inet_aton with EV::ADNS backend to support
701     cname chains (common dns configuration bug, e.g. with www.google.de)
702     and aaaa records if no a record could be found.
703 root 1.72
704 root 1.71 3.41 Sun May 11 19:53:13 CEST 2008
705     - work around a bug in perl 5.8.8's local. Reported by Yi Ma Mao.
706    
707 root 1.70 3.4 Sun May 11 00:29:25 CEST 2008
708 root 1.181 - complete re-implementation of condvars with a hopefully much more useful
709 root 1.70 API (backward compatible functions exist but are undocumented).
710 root 1.69 - AnyEvent::Handle fully rewritten with a hopefully more powerful API
711     (still subject to change).
712 root 1.63 - take advantage of CLOCK_MONOTONIC, if available, in AnyEvent::Impl::Perl.
713 root 1.68 - provide AnyEvent::post_detect and @AnyEvent::post_detect, which
714 root 1.67 allows module authors to avoid forcing event loop detection.
715     (used by Coro::AIO, Coro::BDB, Coro::AnyEvent for example).
716 root 1.66 - remove coro backends: Coro now provides generic support for AnyEvent
717     via Coro::AnyEvent.
718 root 1.63
719 root 1.62 3.3 Mon Apr 28 09:51:06 CEST 2008
720     - added AnyEvent::Handle, AnyEvent::Socket and AnyEvent::Util modules.
721 root 1.55 - fix a bug in the pure perl backend that kept watchers alive
722     when multiple watchers were registered for the same fh/poll combo.
723 root 1.54 - add a benchmark section showing AnyEvent overhead and comparing
724     the different event loops with each other.
725 root 1.56 - prefer pure perl over tk when autoprobing, as it's about as fast,
726     but doesn't crash with many watchers.
727 root 1.62 - declare Qt support non-experimental.
728 root 1.56 - clarify the confusing section about the file descriptor being
729     kept alive.
730     - document the race between loading of an event module and
731     child processes exiting.
732 root 1.53 - support POE as "backend" (with some caveats, POE is not generic
733 root 1.54 enough, and darn slow).
734 root 1.53 - support Wx and Prima through POE.
735 root 1.60 - optimise perl backend to use 20% less memory and take advantage
736 root 1.62 of typical timeout behaviour. It can now compete with
737 root 1.60 select/poll-based C event loops in most cases (it is usually
738     faster than Event and Glib :).
739 root 1.59 - roughly cut EV memory use in half and increase its speed by 30%,
740 root 1.62 by removing undocumented functionality. Did something similar
741     to other event loops where possible.
742 root 1.53
743 root 1.50 3.2 Thu Apr 24 10:10:40 CEST 2008
744 root 1.51 - do not die when anyevent watchers are destroyed while running callbacks
745     in the pureperl backend (could only happen when two watchers are registered
746     for the same fh/poll combo).
747     - support autoloading for child watchers, was broken in all versions.
748 root 1.47 - implement PERL_ANYEVENT_MODEL env variable.
749 root 1.49 - (experimental) implement interface to the (very crashy/buggy) Event::Lib module.
750     - (experimental) implement interface to the Qt module (cannot be autoprobed).
751 root 1.52 - this release is IO:AnyEvent-proof.
752 root 1.47
753 root 1.46 3.12 Tue Apr 22 07:11:46 CEST 2008
754     - reinstate AUTHOR section that got lost somehow.
755     - do not hang in the testsuite with badly broken perls (activestate,
756     strawberry...), but instead diagnose the problem and continue.
757     - use INT instead of CHLD in an attempt to support broken windows perls
758     better (this decreases the test quality, unfortunately).
759     - do not send the signal to the process group
760     (no problem for CHLD, bad for INT :).
761    
762 root 1.45 3.11 Sat Apr 19 06:57:31 CEST 2008
763     - major documentation rework.
764     - document the fact that child watchers only watch for zombies.
765     - fix the child watcher example.
766    
767 root 1.43 3.1 Wed Apr 16 17:09:01 CEST 2008
768 root 1.40 - work around recurring bugs in Tk by dup'ing filehandles, the
769 root 1.43 only method with good success chances on Tk (the bugs apparently
770     don't get fixed anytime soon).
771 root 1.42 - lift the restriction of only one watcher per fh direction
772     (as the Tk bug workaround also lifts it and only Tk imposed
773     such strong limits).
774 root 1.41 - changed probe order to prefer coro adaptors.
775     - explain why recursion into the event loop is not supported
776     unless the backend supports it (only Coro::EV does without
777     any restrictions...).
778     - add simple manpages for all backend modules.
779 root 1.40
780 root 1.39 3.0 Mon Apr 7 21:30:23 CEST 2008
781 root 1.38 - Coro::Signal changed semantics, roll our own, also cleaning
782     up the Coro implementation in general.
783     - rename Coro backend to CoroEvent.
784     - add some decision helping paragraph to the manpage that should
785 root 1.44 help people to decide whether AnyEvent is the right thing for them.
786 root 1.38
787 root 1.37 2.9 Mon Jan 28 13:31:54 CET 2008
788     - update for EV 3.0 API changes.
789    
790 root 1.36 2.8 Sun Nov 25 15:06:03 CET 2007
791     - waitpid can validly return 0. accept this fact of life
792     instead of reporting it to any watchers.
793    
794 root 1.35 2.7 Fri Nov 23 11:41:14 CET 2007
795 root 1.34 - force use of AnyEvent::Impl::Perl in testsuite, there is
796     too much breakage outside AnyEvent.
797 root 1.35 - deliver signals synchronously in AnyEvent::Impl::Perl
798     or any other event loop that relies on AnyEvents child
799     watcher emulation. *Could* help with hanging testsuite
800     (except when Event or EV are installed).
801 root 1.34
802 root 1.33 2.6 Fri Nov 9 20:36:35 CET 2007
803 root 1.32 - fix bug in testsuite.
804     - move EV adaptor modules to AnyEvent.
805     - add Coro+EV adaptor module.
806 root 1.26
807 root 1.31 2.55 Tue Nov 6 17:41:32 CET 2007
808 root 1.27 - add EV to the list of supported event models.
809 root 1.30 - do not auto-reset pid watchers, pass pid and status to them.
810 root 1.29 - allow a pid of zero to watch for all children in child watchers.
811 root 1.27
812 root 1.25 2.54 Wed Jul 18 17:36:23 CEST 2007
813     - work around a perl bug that results in
814     BEGIN not safe after errors--compilation aborted without
815     any discernible reason or error message by once
816     again not use'ing strict.
817    
818 root 1.24 2.53 Sun Jul 8 10:51:53 CEST 2007
819     - make Glib interface work again (spotted by elmex).
820    
821 root 1.22 2.52 Wed Mar 7 18:36:16 CET 2007
822     - child watchers stopped working permanently when
823 root 1.23 all current child watchers were destroyed.
824 root 1.22
825 root 1.21 2.51 Mon Dec 11 21:33:24 CET 2006
826     - work around bugs in perl where eval "require Module" returns
827     true even if the module couldn't be loaded :/.
828    
829 root 1.20 2.5 Mon Dec 11 02:15:28 CET 2006
830 root 1.19 - avoid $AUTOLOAD because many perls corrupt it.
831 root 1.20 - AnyEvent::detect forces autodetection.
832     - implement signal watchers (experimental)
833     (Tk does not support async signals (<= 804.027 at least),
834     so they might get delayed indefinitely on Tk).
835     - implement child watchers (experimental).
836     - moved default condvar implementation into base module, simplifying
837     most implementation modules.
838 root 1.14
839 root 1.18 2.1 Fri Nov 24 15:50:48 CET 2006
840 root 1.16 - better docs.
841     - simple testsuite.
842 root 1.17 - added AnyEvent->one_event method for special purposes.
843 root 1.16
844 root 1.15 2.0 Wed Nov 1 02:21:30 CET 2006
845 root 1.13 - INCOMPATIBLE CHANGE: poll can now either be "r" or "w" but not both.
846     - INCOMPATIBLE CHANGE: io watcher callbacks have no arguments anymore.
847     - EXPERIMENTAL:
848     new pure-perl model added, AnyEvent now always finds a suitable
849     event model.
850 root 1.12 - improved documentation.
851     - reduced cpu overhead.
852    
853 root 1.11 1.02 Fri Jan 13 14:15:40 CET 2006
854     - add COPYING to clarify license.
855    
856 root 1.10 1.01 Sun Jan 8 05:48:09 CET 2006
857     - correctly cancel Event timers, avoid memory leaks.
858    
859 root 1.9 1.0 Sun Jan 8 05:40:58 CET 2006
860 root 1.8 - allow third-party interfaces to be added at runtime.
861     - fix version number.
862    
863 root 1.7 0.9 Fri Dec 30 02:25:41 CET 2005
864 root 1.6 - fixed errors in the documentation.
865 root 1.7 - going back to using $VERSION as "load check",
866     as suggested by Jörn Reder. Let's see why I stopped using
867     this method.
868     - add 'hup' to the list of events to receive for glib
869     and generate 'rw' events for it, as some versions of
870     glib seem to require this, while this breaks other
871     (older) versions of glib.
872     - implemented PERL_ANYEVENT_VERBOSE env variable.
873 root 1.6
874 root 1.5 0.3 Sun Dec 4 10:43:33 CET 2005
875     - no changes to the code.
876     - fixed documentation.
877     - clarified some corner cases.
878     - vastly improved documentation with a long example.
879    
880 root 1.3 0.2 Thu Dec 1 22:18:49 CET 2005
881 root 1.44 - check whether a valid method was called, to avoid endless loops.
882 root 1.4 - move condvars into their own class (cleaner, safer).
883     - don't die when some modules are not available.
884     - Tk is too broken to allow for words. Will work once Tk works.
885 root 1.3
886 root 1.2 0.1 Thu Dec 1 19:44:57 CET 2005
887     - spiced up and cleaned up for release.
888    
889 root 1.1 0.01 Tue Sep 21 18:12:09 CEST 2004
890     - original version; copied from Convert::Scalar.
891