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Comparing Coro/Changes (file contents):
Revision 1.53 by root, Fri Sep 28 13:59:10 2001 UTC vs.
Revision 1.330 by root, Sat Apr 5 22:38:26 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
30.5 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
84.47 Sun Apr 6 00:37:52 CEST 2008
9 - force cctx allocation on API calls: we know we need to force one
10 and gcc actually manages to confuse our heuristic nowadays,
11 leading to crashes and worse.
12 - document force_cctx.
13
144.46 Fri Apr 4 22:05:43 CEST 2008
15 - upgrade libcoro, resulting in pthread-backend (which was only created
16 to fulfill the rules of the programming languages shootout).
17
184.45 Thu Mar 13 11:55:36 CET 2008
19 - fix a file leaking bug in eg/mhyttpd that would allow
20 downloading of any file (reported by oesi).
21 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
22 (also add testcase).
23 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
24 apparently having loads of fun with that).
25 - implement $state->swap_defsv, ->swap_defav and document ->throw.
26
274.4 Wed Feb 13 16:44:29 CET 2008
28 - only assume .cfi pseudo isns exist on GNU/Linux.
29 - add get_timed method to Coro::Channels.
30 - fixed Coro::Debug manpage.
31 - perl 5.11 compatbility improvement based on patch by
32 Andreas König.
33
344.37 Sun Jan 20 11:25:23 CET 2008
35 - soften the check for an active parser for perl 5.10 (avoiding
36 "Coro::State::transfer called while parsing" in many cases).
37
384.36 Sun Jan 13 10:53:56 CET 2008
39 - reset diehook when terminating from an async_pool as to not
40 trigger any __DIE__ handlers.
41
424.35 Sun Jan 13 04:14:13 CET 2008
43 - "bt" debug command now displays any exceptions
44 from longmess and also skips the innermost
45 stackframes, giving more useufl output.
46 - allow backtraces in coroutines blocked in Coro::EV,
47 at a <1% speed hit.
48 - handle localising of $SIG{__WARN__} and __DIE__
49 properly (with a proper amount of dirty hacking).
50
514.34 Sat Dec 22 17:49:53 CET 2007
52 - upgrade to EV version 2.0 API.
53
544.33 Mon Dec 17 08:36:12 CET 2007
55 - make Coro::AIO etc. loadable in the absence of EV.
56
574.32 Mon Dec 17 07:46:02 CET 2007
58 - majorly improved Coro::Handle's performance with Coro::EV.
59 - implemented the until now mythical Coro::BDB module.
60 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
61
624.31 Wed Dec 5 12:32:39 CET 2007
63 - remove warn statement form Coro::Util.
64
654.3 Tue Dec 4 20:33:14 CET 2007
66 - calls to the idle function could cause stack corruption
67 when the stack changed.
68 - do no longer rely on the presence of EV::DNS if EV is used
69 (because it is gone), but instead take avdantage of EV::ADNS
70 if available.
71 - add ($) prototypes to all functions in Coro::Storable.
72 - use a conventional (safer) idle callback in Coro::EV.
73 - do accept quickly in Coro::Debug to avoid endless loops.
74
754.22 Fri Nov 30 16:04:04 CET 2007
76 - really use optimised versions for Event and EV in Coro::Util
77 and Coro::Handle.
78
794.21 Sun Nov 25 10:48:59 CET 2007
80 - fix a spurious memory read.
81 - Coro::EV no longer keeps the eventloop "alive".
82
834.2 Fri Nov 9 20:47:05 CET 2007
84 - enable/disable tracing from a new coroutine, not a pooled one.
85 - fix a memleak in Coro::Event.
86 - removed killall call from fork_eval.
87 - made sure store_fd is already loaded so that fork_eval
88 does not have to parse autoload in each subprocess.
89 - only use assembly method if -O switch is in $Config{optimize}.
90 - add (optional) Coro::EV module, so far the best event loop module
91 directly supported by Coro.
92 - if the event model is EV, use EV::DNS to resolve
93 stuff in Coro::Util.
94 - don't get confused by multiple event notifications in Coro::Handle.
95 - initial support for EV (libevent interface).
96 - require Event and EV using configure_requires, to force their existance.
97
984.13 Wed Oct 24 07:26:45 CEST 2007
99 - add Coro::Storable::blocking_thaw.
100 - use a vastly more complicated technique to localise
101 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
102 - use a coroutine for the idle callback Coro::Event,
103 instead of running Event in the current coroutine context.
104 This also catches recursive invocations.
105 - actually report fork errors in gethostbyname and inet_aton.
106
1074.11 Thu Oct 11 02:40:24 CEST 2007
108 - port to threaded perls.
109
1104.1 Thu Oct 11 02:38:16 CEST 2007
111 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
112 be local to each coro (see Coro::State).
113 - incompatible change: for very deep reasons, cede and cede_notself
114 cannot return anything, so nothing will be returned.
115 - possibly bring back 5.10 compatibility (untested).
116 - work around stupid (and wrong) warning on 5.10 :(.
117 - overlay the saved state over the context stack. This saves
118 a few hundred bytes per coroutine on average and also
119 speeds up context switching a bit.
120 - further tune default stack sizes.
121 - (more) correctly calculate stack usage in coro_rss.
122 - Coro::Storable::blocking_* did not properly lock
123 resulting in races between coroutines.
124 - added Coro::Storable::guard.
125 - stopping to trace a coroutine could destroy the cctx of
126 an unrelated coroutine.
127 - explain the relationship between Perl and C coroutines in
128 more detail in Coro::State.
129 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
130 causing a fork per resolve. This also affected Coro::Socket.
131 - switch to a separate stack in $coro->call/eval to avoid
132 invalidating pointers.
133
1344.03 Sat Oct 6 21:24:00 CEST 2007
135 - added Coro::throw method.
136 - minor code cleanups.
137
1384.02 Sat Oct 6 02:36:47 CEST 2007
139 - fix a very minor per-coroutine memleak (a single codereference).
140 - fixed a bug where the currently in-use c context would be freed
141 prematurely (can happen only when programs change the stacksize
142 or use tracing).
143 - tracing can no longer keep a coro alive after it terminated.
144 - do static branch prediction in the common path for gcc. gives
145 about 2-5% speed improvement here.
146
1474.01 Fri Oct 5 22:10:49 CEST 2007
148 - instead of recreating *a* standard output handle we simply
149 use STDOUT, which is faster and hopefully more robust.
150
1514.0 Fri Oct 5 12:56:00 CEST 2007
152 - incompatibly changed Coro::Storable::freeze.
153 - major new feature: added Coro::Debug, for interactive coroutine
154 debugging, tracing and much more.
155 - major bug fix: unbelievable, but true: $_, $/ and many other
156 "saved" variables actually weren't being saved. This has been fixed,
157 of course, while increasing performance while losing all the save
158 flags.
159 - save flags are gone, and all the api functions dealing with them.
160 - added Coro::Semaphore::adjust.
161 - added Coro::Util::fork_eval.
162 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
163 - added Coro::killall.
164 - reduce initial stack sizes to allow for "micro-coroutines".
165 - better async_pool resource management, moved parts of async_pool
166 handling to XS (major speed improvement).
167 - actually croak before modifying important data structures.
168 - refuse to transfer while compiling.
169 - possibly support eval EXPR better now.
170 - enable assembly per default on linux+bsd x86+amd64.
171 - all internal members were renamed _something for easier subclassing.
172 - many minor tweaks.
173
1743.63 Wed May 16 14:10:06 CEST 2007
175 - implement handcoded assembly for x86/amd64 SVR ABI.
176
1773.62 Fri Apr 27 21:36:06 CEST 2007
178 - upgrade libcoro (which might set unwind info correctly).
179 - change default on linux to setjmp/longjmp.
180
1813.61 Thu Apr 19 12:36:18 CEST 2007
182 - Coro::Storable caused an endless loop when thawing invalid
183 pst's sometimes.
184 - use a Semaphore in Coro::Storable, as Storable doesn't
185 seem to be reentrant (although it is documented to
186 be threadsafe...).
187 - fix Coro::Signal to bring back the original unreliable
188 but stateful semantics.
189 - fixed a lot of typos in Coro.pm (patch submitted by David
190 Steinbrunner, which applied flawlessly).
191
1923.6 Sat Apr 14 17:13:31 CEST 2007
193 - added some bugfixes to get eg/myhttpd working again.
194 - added Coro::Storable for often-cede'ing freeze/thaw.
195 - try to do a clean exit when a coroutine calls exit
196 (EXPERIMENTAL).
197 - got rid of indirect call through _coro_init.
198 - updated the partly antique examples in eg/ to
199 work again and be a bit less magic, too.
200 - fixed Coro::Signal semantics to work as documented again.
201
2023.55 Sun Mar 25 01:20:47 CET 2007
203 - add SAVE_DEFFH to save the default filehandle and enable
204 it by default.
205 - finally move socket-operations from Coro::Socket to Coro::Handle
206 to be able to unblock foreign sockets.
207 - add Coro::State::save_also and guarded_save.
208 - add count accessor to Coro::Semaphore.
209 - add Coro::State::cctx_stacksize.
210 - just for the fun of it, do not rely on implicit context,
211 which can dramatically improve performance, but people
212 using windows-process-emulation perls do not care much about
213 performance.
214
2153.51 Sun Mar 4 14:18:04 CET 2007
216 - fixed a problem when you weakened references to Coro::State's
217 (patch by Yuval Kogman).
218
2193.501 Wed Feb 28 12:44:07 CET 2007
220 - rename some global symbols as macosx from hell redefines
221 them without asking.
222
2233.5 Tue Feb 13 20:22:53 CET 2007
224 - do AnyEvent model detection earlier, avoiding problems
225 caused by first using AnyEvent and later Coro::Event.
226 - implement and document Coro::Event event objects.
227 - fix a potential problem in Coro::Event causing crashes.
228 - initialise PL_comppad when creating a new coroutine,
229 avoids crashes on early coro destruction.
230
2313.41 Mon Jan 22 19:19:49 CET 2007
232 - readline on Coro::Handle did not support undefined $/,
233 nor did it deliver partial lines on EOF or error.
234 - implement malloc fallback for stack allocation because
235 stupid broken idiotic OSX has a stupid broken
236 idiotic fits-the-whole-os mmap "implementation" and
237 my dick feels longer if Coro is portable even to
238 obsolete platforms.
239
2403.4 Fri Jan 19 21:52:54 CET 2007
241 - remove t/09_timer.t, as it isn't really testing much
242 but was rather flaky in practise.
243 - async_pool coro would keep arguments and callback alive until
244 it was reused.
245 - cancellation of a coroutine could cause spurious idle calls
246 in cede_notself.
247
2483.3 Sat Jan 6 03:45:00 CET 2007
249 - implement $coro->on_destroy.
250 - Coro::Event blocking semantics have been changed,
251 documented and - hopefully - improved.
252 - fix nice adding, not subtracting, from priority.
253 - fix ->prio and api_is_ready (patch by Mark Hinds).
254 - fixed an assert ("... == prev__cctx->idle_te")
255 that could errronously trigger.
256 - fix various large and small memleaks.
257 - use a (hopefully) more stable cancel implementation
258 that immediately frees the coroutine data.
259 - cede/cede_notself return a status now.
260 - added Coro::guard function.
261 - added a global coroutine pool for jobs (on my machine,
262 I can create and execute 48k simple coros/s with async,
263 and 128k coros with async_pool).
264 - Coro::AIO now uses the coroutine priority as io priority.
265
2663.2 Fri Dec 22 05:07:09 CET 2006
267 - improve portability to slightly older perls.
268 - use cleaner coroutine destruction.
269 - simplify configuration for users.
270 - optionally (unrecommended) prefer perl functions over
271 their coro replacements.
272
2733.11 Tue Dec 5 13:11:24 CET 2006
274 - fixed some bogus assert's, but as perl.h disables assert even
275 without NDEBUG (thank you very much), not too many people should
276 notice (that did include myself). Andreas König noticed, though :)
277 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
278 it. Also noticed by Andreas König :)
279 - save/restore tainted status.
280 - verified to pass the testsuite on my 5.9.5.
281
2823.1 Mon Dec 4 23:03:40 CET 2006
283 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
284 - incompatible change: transfer flags are now per-state.
285 - give a better error message on deadlock.
286 - document Coro::nready.
287 - enhanced testsuite.
288
2893.01 Sun Dec 3 23:47:42 CET 2006
290 - forgot to include Coro::Timer.
291
2923.0 Sun Dec 3 22:57:25 CET 2006
293 - the "FINALLY COMPLETELY STABLE" release (coming soon:
294 the "FAMOUS LAST WORDS" release).
295 - implement a new stack sharing algorithm, which uses a stack
296 pool (size currently hardcoded).
297 - make stack sharing mandatory (it no longer uses a heuristic).
298 - eval/die no longer cause weird problems under heavy use.
299 - Coro::Event could cause livelocks if it was used but
300 no Coro::Event watchers were used.
301 - Coro::Event now uses asynccheck as prepare does not
302 check for changed watchers.
303 - Coro::Event allows multiple waiting coros and will wake up one
304 per event.
305 - Coro::Event should be cleaner and more efficient now.
306 - new utility function Coro::unblock_sub.
307 - document the sad fact that Event is no longer reentrant.
308 - putting a coroutine into the ready queue twice could under
309 some circumstances lead to stack corruption.
310 - minor incompatibility: subclassing Coro::State is supported
311 directly now without going through a _coro_state member.
312 - state/coro switching is much faster now.
313 - very minor optimisations and code/documentation cleanup.
314 - avoid problems due to compiler inlining.
315 - removed timers from Coro::Timer -> use AnyEvent instead.
316 - replaced Coro::idle coroutine by (cleaner) idle handler.
317 - updated to newest libcoro.
318 - implement enhanced support for valgrind.
319 - implement is_ready and return value for ready.
320 - removed Coro::Cont, it was a misnomer (it's generators),
321 and it was somewhat annoying to get it right. Will come back
322 if somebody asks for it :)
323 - many ->wait methods and Coro::Event could return
324 spuriously without the event having happened.
325
3262.5 Tue Nov 7 12:22:33 CET 2006
327 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
328 use AnyEvent, moved them to Coro/.
329 - added Coro::LWP which contains all the uglyness required to
330 make LWP non-blocking.
331 - should work with perl 5.9.x now (Andreas König made me do it).
332 - fixed another bug in Coro::Select when the timeout was undef.
333 - reuse PL_start_env for all coros, saves some memory per coroutine.
334 - manage PL_top_env differently, hopefully to avoid panic: top_env.
335 - timeout argument was not properly used in Coro::Socket.
336 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
337 - emulate undocumented(!) functionality of IO::Socket required
338 by LWP(!!).
339 - updated eg/lwp to work with newer lwp's.
340 - remove "FATAL: uncaught exception" prefix. Coroutines that die
341 kill the whole process, just as exceptions in the main "coroutine"
342 did already.
343
3442.1 Wed Nov 1 23:01:13 CET 2006
345 - fix a long-standing bug in Coro::Select where select with
346 zero timeout would instead change the current default filehandle.
347 - use a simpler and hopefully more robust way to clone padlists
348 (uses less memory and a perl function instead of our own).
349 - coro can now create a stack guard area on many architectures.
350 - Coro::AIO properly reexports additional functions from IO::AIO.
351 - updated libcoro with a workaround for OS X,
352 pach and testing by Michael Schwern.
353
3542.0 Tue Oct 24 05:47:17 CEST 2006
355 - support additional aio requests in Coro::AIO.
356
3571.9 (never properly released due to a glitch)
358
3591.8 Thu Feb 2 00:59:06 CET 2006
360 - applied suggested patch by SAMV to avoid problems during stupid
361 mark & sweep gc run.
362 - applied patch by Scott Walters for 5.9.3 compatibility.
363
3641.7 Tue Dec 27 01:41:58 CET 2005
365 - added Coro::AIO, a thin wrapper around IO::AIO.
366 - improved Makefile.PL explanations.
367
3681.6 Mon Dec 12 21:30:05 CET 2005
369 - additionally save PM_curpm might fix as-of-yet
370 unseen problems with regex matches being attributed to the
371 wrong package.
372 - add t/10_bugs.t, which currently checks against imho broken
373 perls that use 0.26MB of stack space per Perl_magic_get
374 invocation (newer linuxes) as opposed to the 0.0002MB perl
375 normally uses.
376 - make stacksize configurable for the ultimate debian experience.
377
3781.51 Mon Dec 12 18:48:36 CET 2005
379 - remove debugging warn() accidentally left in Coro::Select.
380
3811.5 Tue Nov 29 13:32:44 CET 2005
382 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
383 - fix Coro::Select 'select'.
384 - strict'ify some modules.
385 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
386 - use XSLoader in selected modules.
387 - remove some 5.6 compatibility cruft.
388
3891.4 Tue Sep 6 00:11:05 CEST 2005
390 - libcoro did not take into account the trampoline on amd64,
391 when 'l'inux method was used.
392
3931.31 Tue Aug 30 23:31:33 CEST 2005
394 - some portability fixes/workarounds.
395
3961.3 Sat Aug 20 03:08:56 CEST 2005
397 - no code changes. module seems to work fine.
398 - improve Coro::State docs, remove reference to nonexisting
399 Coro::State::flush method.
400 - no longer autodetect windows, present it as an option instead.
401
4021.2 Mon May 16 02:00:55 CEST 2005
403 - included libcoro.c earlier in State.xs, might improve portability.
404 - use a faster and possibly more stable Coro::Cont implementation.
405 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
406 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
407 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
408
4091.11 Thu Mar 3 18:00:52 CET 2005
410 - change of contact address.
411
4121.1 Tue Feb 22 20:51:16 CET 2005
413 - support [l]inux method on amd64.
414 - allow some context switches while compiling/eval'ing.
415
4161.0 Tue Aug 10 03:47:27 CEST 2004
417 - Event 0.89 fixes the bug again.
418 - fix the remaining(??) memleak. I didn't free the cache-AV for
419 padlists, so one AV per created anon-sub leaked.
420
4210.97 Fri May 14 15:23:32 CEST 2004
422 - remove stupid gcc extension that was an experiment only anyway.
423
4240.96 Thu May 13 18:09:29 CEST 2004
425 - tell people if they have yet another broken Event variant.
426 - made Coro to work _better_ with threads (it seems that, as long
427 as you use Coros in one thread only everything will work fine.
428 Looking at the perl source the problem might be missing locking
429 between Coro and some perl internal routines. That's not easily
430 fixable).
431 - (hopefully) got rid of the static xnext inside transfer.
432
4330.95 Sun Feb 15 03:20:28 CET 2004
434 - removed Coro::State::flush, implemented a new and much
435 faster caching mechanism by attaching magic to the CV.
436 - a memleak with (real) closures remains.
437 - dramatically reduced size of stacks to 65536 (linux/x86), after
438 observing that even myhttpd never had more than a kilobyte
439 of stack in use (stack is still only physically allocated in
440 pagesize increments for systems suporting mmap).
441 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
442 - fix for threaded perl.
443
4440.9 Sun Nov 23 04:32:39 CET 2003
445 - fix a few very hard to track down but (of course) stupid
446 memory leaks.
447 - stringify version number to avoid locale problems :(.
448 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
449 hopefully ignoring it "just works".
450
4510.8 Wed Nov 5 19:38:40 CET 2003
452 - port to perl5.005_03, but only 5.8.x+ is supported!
453 - honor LocalAddr even without LocalPort in Coro::Socket.
454
4550.7 Tue May 27 03:12:38 CEST 2003
456 - the version jump indicates some level of testing, not gobs
457 of new features.
458 - uh... I found the prompt function in ExtUtils::MakeMaker.
459 Highly correct stuff, that is...
460 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
461 the fix is not well understood by the author, so beware :(.
462
4630.652 Thu May 8 02:54:46 CEST 2003
464 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
465 cause version 4 doesn't have ucontext.
466 - Benjamin Reed reported that setjmp works fine on darwin,
467 so preselect it.
468
4690.651 Sat Mar 29 15:00:23 CET 2003
470 - fix a bug in Coro::Handle where some bytes could get lost
471 on reading, reported by jason@nichego.net.
472
4730.65 Sun Mar 23 00:08:26 CET 2003
474 - added a README.linux-glibc.
475 - new module Coro::Select.
476 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
477 (I never claimed that I know what I am doing ;).
478 - set default to setjmp/longjmp on non-x86-linux.
479
4800.6 Thu Nov 21 11:09:06 CET 2002
481 - made lazy context switching the default.
482 - fixed the bug where SemaphoreSet::guard
483 was the same as timed_guard and timed_guard was missing.
484 - fix a memleak in Coro::Timer.
485 - reclassified context sharing as not experimental.
486
4870.534 Sun Apr 14 03:05:12 CEST 2002
488 - fixed backspace => tab in header parsing (myhttpd).
489 - added eg/readline, for elmex.
490 - Coro::Event now calls ->start on first call instead of
491 ->again, which created wrong timeouts for the first ->next.
492 - fixed a bug where Coro::Socket returned a closed socket instead
493 of nothing on ECONNREFUSED and similar error conditions.
494
4950.533 Mon Feb 18 18:49:40 CET 2002
496 - adapt to finally working Event-0.85.
497 - fixed buggy event initialization (trapped under windows, but how
498 could it possibly have worked anywhere?)
499
5000.532 Wed Jan 16 02:45:32 CET 2002
501 - removed the reference to pp_entersub, might work on
502 (some) win32 perls now (testsuite works under cygwin,
503 without Event, which freezes).
504
5050.531 Mon Dec 10 22:18:44 CET 2001
506 - Fixed a bug in SemaphoreSet::timed_down.
507
5080.53 Tue Nov 27 21:11:13 CET 2001
509 - some tests for Event.
510 - slightly different internal architecture to get refcnt into the object
511 and not the reference. might fix a few bugs, certainly did introduce
512 new ones.
513 - Coro::Timer (independent of Event).
514 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
515
5160.52 Tue Nov 6 21:36:18 CET 2001
517 - ported to cygwin (trivial).
518 patch by Gerrit P. Haase <gp@familiehaase.de>.
519 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
520
5210.51 Thu Nov 1 20:39:01 CET 2001
522 - terminate/cancel now work properly (otherwise termination
523 could cause a "next coroutine is not and contains not..."
524 error.
525 - added Coro::Socket::shutdown.
526 - Coro::Event::loop no is the same as Event::loop.
527 - implemented terminate with args + join.
528
5290.5 Fri Sep 28 16:15:35 CEST 2001
4 - fixed "print" on a Coro::Handle. The print method worked. 530 - fixed "print" on a Coro::Handle. The print method worked.
5 - small tweaks (seem to reduce memory consumption a lot) 531 - small tweaks (seem to reduce memory consumption a lot)
6 in various modules. 532 in various modules.
7 - splendid use of "no warnings" scattered throughout. 533 - splendid use of "no warnings" scattered throughout.
8 - added Coro::Handle::rbuf, fixed Coro::Handle::fh. 534 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.

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