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Comparing Coro/Changes (file contents):
Revision 1.132 by root, Wed Nov 1 01:21:21 2006 UTC vs.
Revision 1.286 by root, Mon Oct 29 19:13:39 2007 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
32.1 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang
5 (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
8 - enable/disable tracing from a new coroutine, not a pooled one.
9 - fix a memleak in Coro::Event.
10 - removed killall call from fork_eval.
11 - made sure store_fd is already loaded so that fork_eval
12 does not have to parse autoload in each subprocess.
13 - if the event model is EV, use EV::DNS to resolve
14 stuff in Coro::Util.
15 - don't get confused by multiple event notifications in Coro::Handle.
16
174.13 Wed Oct 24 07:26:45 CEST 2007
18 - add Coro::Storable::blocking_thaw.
19 - use a vastly more complicated technique to localise
20 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
21 - use a coroutine for the idle callback Coro::Event,
22 instead of running Event in the current coroutine context.
23 This also catches recursive invocations.
24 - actually report fork errors in gethostbyname and inet_aton.
25
264.11 Thu Oct 11 02:40:24 CEST 2007
27 - port to threaded perls.
28
294.1 Thu Oct 11 02:38:16 CEST 2007
30 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
31 be local to each coro (see Coro::State).
32 - incompatible change: for very deep reasons, cede and cede_notself
33 cannot return anything, so nothing will be returned.
34 - possibly bring back 5.10 compatibility (untested).
35 - work around stupid (and wrong) warning on 5.10 :(.
36 - overlay the saved state over the context stack. This saves
37 a few hundred bytes per coroutine on average and also
38 speeds up context switching a bit.
39 - further tune default stack sizes.
40 - (more) correctly calculate stack usage in coro_rss.
41 - Coro::Storable::blocking_* did not properly lock
42 resulting in races between coroutines.
43 - added Coro::Storable::guard.
44 - stopping to trace a coroutine could destroy the cctx of
45 an unrelated coroutine.
46 - explain the relationship between Perl and C coroutines in
47 more detail in Coro::State.
48 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
49 causing a fork per resolve. This also affected Coro::Socket.
50 - switch to a separate stack in $coro->call/eval to avoid
51 invalidating pointers.
52
534.03 Sat Oct 6 21:24:00 CEST 2007
54 - added Coro::throw method.
55 - minor code cleanups.
56
574.02 Sat Oct 6 02:36:47 CEST 2007
58 - fix a very minor per-coroutine memleak (a single codereference).
59 - fixed a bug where the currently in-use c context would be freed
60 prematurely (can happen only when programs change the stacksize
61 or use tracing).
62 - tracing can no longer keep a coro alive after it terminated.
63 - do static branch prediction in the common path for gcc. gives
64 about 2-5% speed improvement here.
65
664.01 Fri Oct 5 22:10:49 CEST 2007
67 - instead of recreating *a* standard output handle we simply
68 use STDOUT, which is faster and hopefully more robust.
69
704.0 Fri Oct 5 12:56:00 CEST 2007
71 - incompatibly changed Coro::Storable::freeze.
72 - major new feature: added Coro::Debug, for interactive coroutine
73 debugging, tracing and much more.
74 - major bug fix: unbelievable, but true: $_, $/ and many other
75 "saved" variables actually weren't being saved. This has been fixed,
76 of course, while increasing performance while losing all the save
77 flags.
78 - save flags are gone, and all the api functions dealing with them.
79 - added Coro::Semaphore::adjust.
80 - added Coro::Util::fork_eval.
81 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
82 - added Coro::killall.
83 - reduce initial stack sizes to allow for "micro-coroutines".
84 - better async_pool resource management, moved parts of async_pool
85 handling to XS (major speed improvement).
86 - actually croak before modifying important data structures.
87 - refuse to transfer while compiling.
88 - possibly support eval EXPR better now.
89 - enable assembly per default on linux+bsd x86+amd64.
90 - all internal members were renamed _something for easier subclassing.
91 - many minor tweaks.
92
933.63 Wed May 16 14:10:06 CEST 2007
94 - implement handcoded assembly for x86/amd64 SVR ABI.
95
963.62 Fri Apr 27 21:36:06 CEST 2007
97 - upgrade libcoro (which might set unwind info correctly).
98 - change default on linux to setjmp/longjmp.
99
1003.61 Thu Apr 19 12:36:18 CEST 2007
101 - Coro::Storable caused an endless loop when thawing invalid
102 pst's sometimes.
103 - use a Semaphore in Coro::Storable, as Storable doesn't
104 seem to be reentrant (although it is documented to
105 be threadsafe...).
106 - fix Coro::Signal to bring back the original unreliable
107 but stateful semantics.
108 - fixed a lot of typos in Coro.pm (patch submitted by David
109 Steinbrunner, which applied flawlessly).
110
1113.6 Sat Apr 14 17:13:31 CEST 2007
112 - added some bugfixes to get eg/myhttpd working again.
113 - added Coro::Storable for often-cede'ing freeze/thaw.
114 - try to do a clean exit when a coroutine calls exit
115 (EXPERIMENTAL).
116 - got rid of indirect call through _coro_init.
117 - updated the partly antique examples in eg/ to
118 work again and be a bit less magic, too.
119 - fixed Coro::Signal semantics to work as documented again.
120
1213.55 Sun Mar 25 01:20:47 CET 2007
122 - add SAVE_DEFFH to save the default filehandle and enable
123 it by default.
124 - finally move socket-operations from Coro::Socket to Coro::Handle
125 to be able to unblock foreign sockets.
126 - add Coro::State::save_also and guarded_save.
127 - add count accessor to Coro::Semaphore.
128 - add Coro::State::cctx_stacksize.
129 - just for the fun of it, do not rely on implicit context,
130 which can dramatically improve performance, but people
131 using windows-process-emulation perls do not care much about
132 performance.
133
1343.51 Sun Mar 4 14:18:04 CET 2007
135 - fixed a problem when you weakened references to Coro::State's
136 (patch by Yuval Kogman).
137
1383.501 Wed Feb 28 12:44:07 CET 2007
139 - rename some global symbols as macosx from hell redefines
140 them without asking.
141
1423.5 Tue Feb 13 20:22:53 CET 2007
143 - do AnyEvent model detection earlier, avoiding problems
144 caused by first using AnyEvent and later Coro::Event.
145 - implement and document Coro::Event event objects.
146 - fix a potential problem in Coro::Event causing crashes.
147 - initialise PL_comppad when creating a new coroutine,
148 avoids crashes on early coro destruction.
149
1503.41 Mon Jan 22 19:19:49 CET 2007
151 - readline on Coro::Handle did not support undefined $/,
152 nor did it deliver partial lines on EOF or error.
153 - implement malloc fallback for stack allocation because
154 stupid broken idiotic OSX has a stupid broken
155 idiotic fits-the-whole-os mmap "implementation" and
156 my dick feels longer if Coro is portable even to
157 obsolete platforms.
158
1593.4 Fri Jan 19 21:52:54 CET 2007
160 - remove t/09_timer.t, as it isn't really testing much
161 but was rather flaky in practise.
162 - async_pool coro would keep arguments and callback alive until
163 it was reused.
164 - cancellation of a coroutine could cause spurious idle calls
165 in cede_notself.
166
1673.3 Sat Jan 6 03:45:00 CET 2007
168 - implement $coro->on_destroy.
169 - Coro::Event blocking semantics have been changed,
170 documented and - hopefully - improved.
171 - fix nice adding, not subtracting, from priority.
172 - fix ->prio and api_is_ready (patch by Mark Hinds).
173 - fixed an assert ("... == prev__cctx->idle_te")
174 that could errronously trigger.
175 - fix various large and small memleaks.
176 - use a (hopefully) more stable cancel implementation
177 that immediately frees the coroutine data.
178 - cede/cede_notself return a status now.
179 - added Coro::guard function.
180 - added a global coroutine pool for jobs (on my machine,
181 I can create and execute 48k simple coros/s with async,
182 and 128k coros with async_pool).
183 - Coro::AIO now uses the coroutine priority as io priority.
184
1853.2 Fri Dec 22 05:07:09 CET 2006
186 - improve portability to slightly older perls.
187 - use cleaner coroutine destruction.
188 - simplify configuration for users.
189 - optionally (unrecommended) prefer perl functions over
190 their coro replacements.
191
1923.11 Tue Dec 5 13:11:24 CET 2006
193 - fixed some bogus assert's, but as perl.h disables assert even
194 without NDEBUG (thank you very much), not too many people should
195 notice (that did include myself). Andreas König noticed, though :)
196 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
197 it. Also noticed by Andreas König :)
198 - save/restore tainted status.
199 - verified to pass the testsuite on my 5.9.5.
200
2013.1 Mon Dec 4 23:03:40 CET 2006
202 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
203 - incompatible change: transfer flags are now per-state.
204 - give a better error message on deadlock.
205 - document Coro::nready.
206 - enhanced testsuite.
207
2083.01 Sun Dec 3 23:47:42 CET 2006
209 - forgot to include Coro::Timer.
210
2113.0 Sun Dec 3 22:57:25 CET 2006
212 - the "FINALLY COMPLETELY STABLE" release (coming soon:
213 the "FAMOUS LAST WORDS" release).
214 - implement a new stack sharing algorithm, which uses a stack
215 pool (size currently hardcoded).
216 - make stack sharing mandatory (it no longer uses a heuristic).
217 - eval/die no longer cause weird problems under heavy use.
218 - Coro::Event could cause livelocks if it was used but
219 no Coro::Event watchers were used.
220 - Coro::Event now uses asynccheck as prepare does not
221 check for changed watchers.
222 - Coro::Event allows multiple waiting coros and will wake up one
223 per event.
224 - Coro::Event should be cleaner and more efficient now.
225 - new utility function Coro::unblock_sub.
226 - document the sad fact that Event is no longer reentrant.
227 - putting a coroutine into the ready queue twice could under
228 some circumstances lead to stack corruption.
229 - minor incompatibility: subclassing Coro::State is supported
230 directly now without going through a _coro_state member.
231 - state/coro switching is much faster now.
232 - very minor optimisations and code/documentation cleanup.
233 - avoid problems due to compiler inlining.
234 - removed timers from Coro::Timer -> use AnyEvent instead.
235 - replaced Coro::idle coroutine by (cleaner) idle handler.
236 - updated to newest libcoro.
237 - implement enhanced support for valgrind.
238 - implement is_ready and return value for ready.
239 - removed Coro::Cont, it was a misnomer (it's generators),
240 and it was somewhat annoying to get it right. Will come back
241 if somebody asks for it :)
242 - many ->wait methods and Coro::Event could return
243 spuriously without the event having happened.
244
2452.5 Tue Nov 7 12:22:33 CET 2006
246 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
247 use AnyEvent, moved them to Coro/.
248 - added Coro::LWP which contains all the uglyness required to
249 make LWP non-blocking.
250 - should work with perl 5.9.x now (Andreas König made me do it).
251 - fixed another bug in Coro::Select when the timeout was undef.
252 - reuse PL_start_env for all coros, saves some memory per coroutine.
253 - manage PL_top_env differently, hopefully to avoid panic: top_env.
254 - timeout argument was not properly used in Coro::Socket.
255 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
256 - emulate undocumented(!) functionality of IO::Socket required
257 by LWP(!!).
258 - updated eg/lwp to work with newer lwp's.
259 - remove "FATAL: uncaught exception" prefix. Coroutines that die
260 kill the whole process, just as exceptions in the main "coroutine"
261 did already.
262
2632.1 Wed Nov 1 23:01:13 CET 2006
264 - fix a long-standing bug in Coro::Select where select with
265 zero timeout would instead change the current default filehandle.
4 - use a simpler and hopefully more robust way to clone padlists 266 - use a simpler and hopefully more robust way to clone padlists
5 (uses less memory and a perl function instead of our own). 267 (uses less memory and a perl function instead of our own).
6 - coro can now create a stack guard area on many architectures. 268 - coro can now create a stack guard area on many architectures.
269 - Coro::AIO properly reexports additional functions from IO::AIO.
7 - updated libcoro with a workaround for OS X, 270 - updated libcoro with a workaround for OS X,
8 pach by Michael Schwern. 271 pach and testing by Michael Schwern.
9 272
102.0 Tue Oct 24 05:47:17 CEST 2006 2732.0 Tue Oct 24 05:47:17 CEST 2006
11 - support additional aio requests in Coro::AIO. 274 - support additional aio requests in Coro::AIO.
12 275
131.9 (never properly released due to a glitch) 2761.9 (never properly released due to a glitch)

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