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Comparing Coro/Changes (file contents):
Revision 1.151 by root, Thu Nov 23 23:54:02 2006 UTC vs.
Revision 1.319 by root, Sun Jan 20 17:30:24 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: check wether stack-sharing is still effective 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: more effective stack sharing by having one "default stack" for "simple" coroutines? 4TODO: maybe implement a default message channel, very much like Erlang
5TODO: verify exception frame changes and force stack copies? 5 (which is cool in a lot of important aspects (failures!),
6#2 0x00002ac4a63f2622 in api_schedule () at State.xs:895 6 but very lacking in others (higher level ipc)).
7#3 0x00002ac4a63f26a9 in XS_Coro_schedule (cv=0x911700) at State.xs:1095
8#4 0x00000000004941b8 in Perl_pp_entersub () at pp_hot.c:2869
9#5 0x0000000000489fee in Perl_runops_standard () at run.c:37
10#6 0x000000000041dec7 in Perl_call_sv (sv=0xbfd8ea0, flags=<value optimized out>) at perl.c:2806
11#7 0x00002ac4a6606ad3 in pe_event_invoke (ev=0x1ada6e0) at c/ev.c:308
12#8 0x00002ac4a6608878 in one_event (tm=60) at c/queue.c:91
13#9 0x00002ac4a6608f4f in XS_Event_one_event (cv=<value optimized out>) at c/queue.c:234
14#10 0x00000000004941b8 in Perl_pp_entersub () at pp_hot.c:2869
15#11 0x0000000000489fee in Perl_runops_standard () at run.c:37
16#12 0x00000000004c4287 in S_docatch (o=<value optimized out>) at pp_ctl.c:2566
17#13 0x0000000000489fee in Perl_runops_standard () at run.c:37
18#14 0x00000000004c4287 in S_docatch (o=<value optimized out>) at pp_ctl.c:2566
19#15 0x0000000000489fee in Perl_runops_standard () at run.c:37
20#16 0x000000000041e38c in Perl_call_sv (sv=<value optimized out>, flags=140) at perl.c:2806
21#17 0x00002ac4a63f1d72 in setup_coro (arg=0x881d80) at State.xs:620
22#18 0x00002ac4a63f28b7 in coro_init () at libcoro/coro.c:78
23#19 0x0000000000000000 in ?? ()
24 7
25 - minor documentation cleanup. 8 - only assume .cfi pseudo isns exist on GNU/Linux.
9
104.37 Sun Jan 20 11:25:23 CET 2008
11 - soften the check for an active parser for perl 5.10 (avoiding
12 "Coro::State::transfer called while parsing" in many cases).
13
144.36 Sun Jan 13 10:53:56 CET 2008
15 - reset diehook when terminating from an async_pool as to not
16 trigger any __DIE__ handlers.
17
184.35 Sun Jan 13 04:14:13 CET 2008
19 - "bt" debug command now displays any exceptions
20 from longmess and also skips the innermost
21 stackframes, giving more useufl output.
22 - allow backtraces in coroutines blocked in Coro::EV,
23 at a <1% speed hit.
24 - handle localising of $SIG{__WARN__} and __DIE__
25 properly (with a proper amount of dirty hacking).
26
274.34 Sat Dec 22 17:49:53 CET 2007
28 - upgrade to EV version 2.0 API.
29
304.33 Mon Dec 17 08:36:12 CET 2007
31 - make Coro::AIO etc. loadable in the absence of EV.
32
334.32 Mon Dec 17 07:46:02 CET 2007
34 - majorly improved Coro::Handle's performance with Coro::EV.
35 - implemented the until now mythical Coro::BDB module.
36 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
37
384.31 Wed Dec 5 12:32:39 CET 2007
39 - remove warn statement form Coro::Util.
40
414.3 Tue Dec 4 20:33:14 CET 2007
42 - calls to the idle function could cause stack corruption
43 when the stack changed.
44 - do no longer rely on the presence of EV::DNS if EV is used
45 (because it is gone), but instead take avdantage of EV::ADNS
46 if available.
47 - add ($) prototypes to all functions in Coro::Storable.
48 - use a conventional (safer) idle callback in Coro::EV.
49 - do accept quickly in Coro::Debug to avoid endless loops.
50
514.22 Fri Nov 30 16:04:04 CET 2007
52 - really use optimised versions for Event and EV in Coro::Util
53 and Coro::Handle.
54
554.21 Sun Nov 25 10:48:59 CET 2007
56 - fix a spurious memory read.
57 - Coro::EV no longer keeps the eventloop "alive".
58
594.2 Fri Nov 9 20:47:05 CET 2007
60 - enable/disable tracing from a new coroutine, not a pooled one.
61 - fix a memleak in Coro::Event.
62 - removed killall call from fork_eval.
63 - made sure store_fd is already loaded so that fork_eval
64 does not have to parse autoload in each subprocess.
65 - only use assembly method if -O switch is in $Config{optimize}.
66 - add (optional) Coro::EV module, so far the best event loop module
67 directly supported by Coro.
68 - if the event model is EV, use EV::DNS to resolve
69 stuff in Coro::Util.
70 - don't get confused by multiple event notifications in Coro::Handle.
71 - initial support for EV (libevent interface).
72 - require Event and EV using configure_requires, to force their existance.
73
744.13 Wed Oct 24 07:26:45 CEST 2007
75 - add Coro::Storable::blocking_thaw.
76 - use a vastly more complicated technique to localise
77 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
78 - use a coroutine for the idle callback Coro::Event,
79 instead of running Event in the current coroutine context.
80 This also catches recursive invocations.
81 - actually report fork errors in gethostbyname and inet_aton.
82
834.11 Thu Oct 11 02:40:24 CEST 2007
84 - port to threaded perls.
85
864.1 Thu Oct 11 02:38:16 CEST 2007
87 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
88 be local to each coro (see Coro::State).
89 - incompatible change: for very deep reasons, cede and cede_notself
90 cannot return anything, so nothing will be returned.
91 - possibly bring back 5.10 compatibility (untested).
92 - work around stupid (and wrong) warning on 5.10 :(.
93 - overlay the saved state over the context stack. This saves
94 a few hundred bytes per coroutine on average and also
95 speeds up context switching a bit.
96 - further tune default stack sizes.
97 - (more) correctly calculate stack usage in coro_rss.
98 - Coro::Storable::blocking_* did not properly lock
99 resulting in races between coroutines.
100 - added Coro::Storable::guard.
101 - stopping to trace a coroutine could destroy the cctx of
102 an unrelated coroutine.
103 - explain the relationship between Perl and C coroutines in
104 more detail in Coro::State.
105 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
106 causing a fork per resolve. This also affected Coro::Socket.
107 - switch to a separate stack in $coro->call/eval to avoid
108 invalidating pointers.
109
1104.03 Sat Oct 6 21:24:00 CEST 2007
111 - added Coro::throw method.
112 - minor code cleanups.
113
1144.02 Sat Oct 6 02:36:47 CEST 2007
115 - fix a very minor per-coroutine memleak (a single codereference).
116 - fixed a bug where the currently in-use c context would be freed
117 prematurely (can happen only when programs change the stacksize
118 or use tracing).
119 - tracing can no longer keep a coro alive after it terminated.
120 - do static branch prediction in the common path for gcc. gives
121 about 2-5% speed improvement here.
122
1234.01 Fri Oct 5 22:10:49 CEST 2007
124 - instead of recreating *a* standard output handle we simply
125 use STDOUT, which is faster and hopefully more robust.
126
1274.0 Fri Oct 5 12:56:00 CEST 2007
128 - incompatibly changed Coro::Storable::freeze.
129 - major new feature: added Coro::Debug, for interactive coroutine
130 debugging, tracing and much more.
131 - major bug fix: unbelievable, but true: $_, $/ and many other
132 "saved" variables actually weren't being saved. This has been fixed,
133 of course, while increasing performance while losing all the save
134 flags.
135 - save flags are gone, and all the api functions dealing with them.
136 - added Coro::Semaphore::adjust.
137 - added Coro::Util::fork_eval.
138 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
139 - added Coro::killall.
140 - reduce initial stack sizes to allow for "micro-coroutines".
141 - better async_pool resource management, moved parts of async_pool
142 handling to XS (major speed improvement).
143 - actually croak before modifying important data structures.
144 - refuse to transfer while compiling.
145 - possibly support eval EXPR better now.
146 - enable assembly per default on linux+bsd x86+amd64.
147 - all internal members were renamed _something for easier subclassing.
148 - many minor tweaks.
149
1503.63 Wed May 16 14:10:06 CEST 2007
151 - implement handcoded assembly for x86/amd64 SVR ABI.
152
1533.62 Fri Apr 27 21:36:06 CEST 2007
154 - upgrade libcoro (which might set unwind info correctly).
155 - change default on linux to setjmp/longjmp.
156
1573.61 Thu Apr 19 12:36:18 CEST 2007
158 - Coro::Storable caused an endless loop when thawing invalid
159 pst's sometimes.
160 - use a Semaphore in Coro::Storable, as Storable doesn't
161 seem to be reentrant (although it is documented to
162 be threadsafe...).
163 - fix Coro::Signal to bring back the original unreliable
164 but stateful semantics.
165 - fixed a lot of typos in Coro.pm (patch submitted by David
166 Steinbrunner, which applied flawlessly).
167
1683.6 Sat Apr 14 17:13:31 CEST 2007
169 - added some bugfixes to get eg/myhttpd working again.
170 - added Coro::Storable for often-cede'ing freeze/thaw.
171 - try to do a clean exit when a coroutine calls exit
172 (EXPERIMENTAL).
173 - got rid of indirect call through _coro_init.
174 - updated the partly antique examples in eg/ to
175 work again and be a bit less magic, too.
176 - fixed Coro::Signal semantics to work as documented again.
177
1783.55 Sun Mar 25 01:20:47 CET 2007
179 - add SAVE_DEFFH to save the default filehandle and enable
180 it by default.
181 - finally move socket-operations from Coro::Socket to Coro::Handle
182 to be able to unblock foreign sockets.
183 - add Coro::State::save_also and guarded_save.
184 - add count accessor to Coro::Semaphore.
185 - add Coro::State::cctx_stacksize.
186 - just for the fun of it, do not rely on implicit context,
187 which can dramatically improve performance, but people
188 using windows-process-emulation perls do not care much about
189 performance.
190
1913.51 Sun Mar 4 14:18:04 CET 2007
192 - fixed a problem when you weakened references to Coro::State's
193 (patch by Yuval Kogman).
194
1953.501 Wed Feb 28 12:44:07 CET 2007
196 - rename some global symbols as macosx from hell redefines
197 them without asking.
198
1993.5 Tue Feb 13 20:22:53 CET 2007
200 - do AnyEvent model detection earlier, avoiding problems
201 caused by first using AnyEvent and later Coro::Event.
202 - implement and document Coro::Event event objects.
203 - fix a potential problem in Coro::Event causing crashes.
204 - initialise PL_comppad when creating a new coroutine,
205 avoids crashes on early coro destruction.
206
2073.41 Mon Jan 22 19:19:49 CET 2007
208 - readline on Coro::Handle did not support undefined $/,
209 nor did it deliver partial lines on EOF or error.
210 - implement malloc fallback for stack allocation because
211 stupid broken idiotic OSX has a stupid broken
212 idiotic fits-the-whole-os mmap "implementation" and
213 my dick feels longer if Coro is portable even to
214 obsolete platforms.
215
2163.4 Fri Jan 19 21:52:54 CET 2007
217 - remove t/09_timer.t, as it isn't really testing much
218 but was rather flaky in practise.
219 - async_pool coro would keep arguments and callback alive until
220 it was reused.
221 - cancellation of a coroutine could cause spurious idle calls
222 in cede_notself.
223
2243.3 Sat Jan 6 03:45:00 CET 2007
225 - implement $coro->on_destroy.
226 - Coro::Event blocking semantics have been changed,
227 documented and - hopefully - improved.
228 - fix nice adding, not subtracting, from priority.
229 - fix ->prio and api_is_ready (patch by Mark Hinds).
230 - fixed an assert ("... == prev__cctx->idle_te")
231 that could errronously trigger.
232 - fix various large and small memleaks.
233 - use a (hopefully) more stable cancel implementation
234 that immediately frees the coroutine data.
235 - cede/cede_notself return a status now.
236 - added Coro::guard function.
237 - added a global coroutine pool for jobs (on my machine,
238 I can create and execute 48k simple coros/s with async,
239 and 128k coros with async_pool).
240 - Coro::AIO now uses the coroutine priority as io priority.
241
2423.2 Fri Dec 22 05:07:09 CET 2006
243 - improve portability to slightly older perls.
244 - use cleaner coroutine destruction.
245 - simplify configuration for users.
246 - optionally (unrecommended) prefer perl functions over
247 their coro replacements.
248
2493.11 Tue Dec 5 13:11:24 CET 2006
250 - fixed some bogus assert's, but as perl.h disables assert even
251 without NDEBUG (thank you very much), not too many people should
252 notice (that did include myself). Andreas König noticed, though :)
253 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
254 it. Also noticed by Andreas König :)
255 - save/restore tainted status.
256 - verified to pass the testsuite on my 5.9.5.
257
2583.1 Mon Dec 4 23:03:40 CET 2006
259 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
260 - incompatible change: transfer flags are now per-state.
261 - give a better error message on deadlock.
262 - document Coro::nready.
263 - enhanced testsuite.
264
2653.01 Sun Dec 3 23:47:42 CET 2006
266 - forgot to include Coro::Timer.
267
2683.0 Sun Dec 3 22:57:25 CET 2006
269 - the "FINALLY COMPLETELY STABLE" release (coming soon:
270 the "FAMOUS LAST WORDS" release).
271 - implement a new stack sharing algorithm, which uses a stack
272 pool (size currently hardcoded).
273 - make stack sharing mandatory (it no longer uses a heuristic).
274 - eval/die no longer cause weird problems under heavy use.
275 - Coro::Event could cause livelocks if it was used but
276 no Coro::Event watchers were used.
277 - Coro::Event now uses asynccheck as prepare does not
278 check for changed watchers.
279 - Coro::Event allows multiple waiting coros and will wake up one
280 per event.
281 - Coro::Event should be cleaner and more efficient now.
282 - new utility function Coro::unblock_sub.
283 - document the sad fact that Event is no longer reentrant.
284 - putting a coroutine into the ready queue twice could under
285 some circumstances lead to stack corruption.
286 - minor incompatibility: subclassing Coro::State is supported
287 directly now without going through a _coro_state member.
288 - state/coro switching is much faster now.
26 - verys minor optimisations and cleanups. 289 - very minor optimisations and code/documentation cleanup.
290 - avoid problems due to compiler inlining.
291 - removed timers from Coro::Timer -> use AnyEvent instead.
292 - replaced Coro::idle coroutine by (cleaner) idle handler.
293 - updated to newest libcoro.
294 - implement enhanced support for valgrind.
295 - implement is_ready and return value for ready.
296 - removed Coro::Cont, it was a misnomer (it's generators),
297 and it was somewhat annoying to get it right. Will come back
298 if somebody asks for it :)
299 - many ->wait methods and Coro::Event could return
300 spuriously without the event having happened.
27 301
282.5 Tue Nov 7 12:22:33 CET 2006 3022.5 Tue Nov 7 12:22:33 CET 2006
29 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 303 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
30 use AnyEvent, moved them to Coro/. 304 use AnyEvent, moved them to Coro/.
31 - added Coro::LWP which contains all the uglyness required to 305 - added Coro::LWP which contains all the uglyness required to

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