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Comparing Coro/Changes (file contents):
Revision 1.193 by root, Fri Jan 5 16:55:01 2007 UTC vs.
Revision 1.318 by root, Sun Jan 20 10:26:12 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: better (earlier) error messages on broken transfer's 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: destroy gets only called on cancel: fix(?) 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)).
5 7
63.3 84.37 Sun Jan 20 11:25:23 CET 2008
9 - soften the check for an active parser for perl 5.10 (avoiding
10 "Coro::State::transfer called while parsing" in many cases).
11
124.36 Sun Jan 13 10:53:56 CET 2008
13 - reset diehook when terminating from an async_pool as to not
14 trigger any __DIE__ handlers.
15
164.35 Sun Jan 13 04:14:13 CET 2008
17 - "bt" debug command now displays any exceptions
18 from longmess and also skips the innermost
19 stackframes, giving more useufl output.
20 - allow backtraces in coroutines blocked in Coro::EV,
21 at a <1% speed hit.
22 - handle localising of $SIG{__WARN__} and __DIE__
23 properly (with a proper amount of dirty hacking).
24
254.34 Sat Dec 22 17:49:53 CET 2007
26 - upgrade to EV version 2.0 API.
27
284.33 Mon Dec 17 08:36:12 CET 2007
29 - make Coro::AIO etc. loadable in the absence of EV.
30
314.32 Mon Dec 17 07:46:02 CET 2007
32 - majorly improved Coro::Handle's performance with Coro::EV.
33 - implemented the until now mythical Coro::BDB module.
34 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
35
364.31 Wed Dec 5 12:32:39 CET 2007
37 - remove warn statement form Coro::Util.
38
394.3 Tue Dec 4 20:33:14 CET 2007
40 - calls to the idle function could cause stack corruption
41 when the stack changed.
42 - do no longer rely on the presence of EV::DNS if EV is used
43 (because it is gone), but instead take avdantage of EV::ADNS
44 if available.
45 - add ($) prototypes to all functions in Coro::Storable.
46 - use a conventional (safer) idle callback in Coro::EV.
47 - do accept quickly in Coro::Debug to avoid endless loops.
48
494.22 Fri Nov 30 16:04:04 CET 2007
50 - really use optimised versions for Event and EV in Coro::Util
51 and Coro::Handle.
52
534.21 Sun Nov 25 10:48:59 CET 2007
54 - fix a spurious memory read.
55 - Coro::EV no longer keeps the eventloop "alive".
56
574.2 Fri Nov 9 20:47:05 CET 2007
58 - enable/disable tracing from a new coroutine, not a pooled one.
59 - fix a memleak in Coro::Event.
60 - removed killall call from fork_eval.
61 - made sure store_fd is already loaded so that fork_eval
62 does not have to parse autoload in each subprocess.
63 - only use assembly method if -O switch is in $Config{optimize}.
64 - add (optional) Coro::EV module, so far the best event loop module
65 directly supported by Coro.
66 - if the event model is EV, use EV::DNS to resolve
67 stuff in Coro::Util.
68 - don't get confused by multiple event notifications in Coro::Handle.
69 - initial support for EV (libevent interface).
70 - require Event and EV using configure_requires, to force their existance.
71
724.13 Wed Oct 24 07:26:45 CEST 2007
73 - add Coro::Storable::blocking_thaw.
74 - use a vastly more complicated technique to localise
75 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
76 - use a coroutine for the idle callback Coro::Event,
77 instead of running Event in the current coroutine context.
78 This also catches recursive invocations.
79 - actually report fork errors in gethostbyname and inet_aton.
80
814.11 Thu Oct 11 02:40:24 CEST 2007
82 - port to threaded perls.
83
844.1 Thu Oct 11 02:38:16 CEST 2007
85 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
86 be local to each coro (see Coro::State).
87 - incompatible change: for very deep reasons, cede and cede_notself
88 cannot return anything, so nothing will be returned.
89 - possibly bring back 5.10 compatibility (untested).
90 - work around stupid (and wrong) warning on 5.10 :(.
91 - overlay the saved state over the context stack. This saves
92 a few hundred bytes per coroutine on average and also
93 speeds up context switching a bit.
94 - further tune default stack sizes.
95 - (more) correctly calculate stack usage in coro_rss.
96 - Coro::Storable::blocking_* did not properly lock
97 resulting in races between coroutines.
98 - added Coro::Storable::guard.
99 - stopping to trace a coroutine could destroy the cctx of
100 an unrelated coroutine.
101 - explain the relationship between Perl and C coroutines in
102 more detail in Coro::State.
103 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
104 causing a fork per resolve. This also affected Coro::Socket.
105 - switch to a separate stack in $coro->call/eval to avoid
106 invalidating pointers.
107
1084.03 Sat Oct 6 21:24:00 CEST 2007
109 - added Coro::throw method.
110 - minor code cleanups.
111
1124.02 Sat Oct 6 02:36:47 CEST 2007
113 - fix a very minor per-coroutine memleak (a single codereference).
114 - fixed a bug where the currently in-use c context would be freed
115 prematurely (can happen only when programs change the stacksize
116 or use tracing).
117 - tracing can no longer keep a coro alive after it terminated.
118 - do static branch prediction in the common path for gcc. gives
119 about 2-5% speed improvement here.
120
1214.01 Fri Oct 5 22:10:49 CEST 2007
122 - instead of recreating *a* standard output handle we simply
123 use STDOUT, which is faster and hopefully more robust.
124
1254.0 Fri Oct 5 12:56:00 CEST 2007
126 - incompatibly changed Coro::Storable::freeze.
127 - major new feature: added Coro::Debug, for interactive coroutine
128 debugging, tracing and much more.
129 - major bug fix: unbelievable, but true: $_, $/ and many other
130 "saved" variables actually weren't being saved. This has been fixed,
131 of course, while increasing performance while losing all the save
132 flags.
133 - save flags are gone, and all the api functions dealing with them.
134 - added Coro::Semaphore::adjust.
135 - added Coro::Util::fork_eval.
136 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
137 - added Coro::killall.
138 - reduce initial stack sizes to allow for "micro-coroutines".
139 - better async_pool resource management, moved parts of async_pool
140 handling to XS (major speed improvement).
141 - actually croak before modifying important data structures.
142 - refuse to transfer while compiling.
143 - possibly support eval EXPR better now.
144 - enable assembly per default on linux+bsd x86+amd64.
145 - all internal members were renamed _something for easier subclassing.
146 - many minor tweaks.
147
1483.63 Wed May 16 14:10:06 CEST 2007
149 - implement handcoded assembly for x86/amd64 SVR ABI.
150
1513.62 Fri Apr 27 21:36:06 CEST 2007
152 - upgrade libcoro (which might set unwind info correctly).
153 - change default on linux to setjmp/longjmp.
154
1553.61 Thu Apr 19 12:36:18 CEST 2007
156 - Coro::Storable caused an endless loop when thawing invalid
157 pst's sometimes.
158 - use a Semaphore in Coro::Storable, as Storable doesn't
159 seem to be reentrant (although it is documented to
160 be threadsafe...).
161 - fix Coro::Signal to bring back the original unreliable
162 but stateful semantics.
163 - fixed a lot of typos in Coro.pm (patch submitted by David
164 Steinbrunner, which applied flawlessly).
165
1663.6 Sat Apr 14 17:13:31 CEST 2007
167 - added some bugfixes to get eg/myhttpd working again.
168 - added Coro::Storable for often-cede'ing freeze/thaw.
169 - try to do a clean exit when a coroutine calls exit
170 (EXPERIMENTAL).
171 - got rid of indirect call through _coro_init.
172 - updated the partly antique examples in eg/ to
173 work again and be a bit less magic, too.
174 - fixed Coro::Signal semantics to work as documented again.
175
1763.55 Sun Mar 25 01:20:47 CET 2007
177 - add SAVE_DEFFH to save the default filehandle and enable
178 it by default.
179 - finally move socket-operations from Coro::Socket to Coro::Handle
180 to be able to unblock foreign sockets.
181 - add Coro::State::save_also and guarded_save.
182 - add count accessor to Coro::Semaphore.
183 - add Coro::State::cctx_stacksize.
184 - just for the fun of it, do not rely on implicit context,
185 which can dramatically improve performance, but people
186 using windows-process-emulation perls do not care much about
187 performance.
188
1893.51 Sun Mar 4 14:18:04 CET 2007
190 - fixed a problem when you weakened references to Coro::State's
191 (patch by Yuval Kogman).
192
1933.501 Wed Feb 28 12:44:07 CET 2007
194 - rename some global symbols as macosx from hell redefines
195 them without asking.
196
1973.5 Tue Feb 13 20:22:53 CET 2007
198 - do AnyEvent model detection earlier, avoiding problems
199 caused by first using AnyEvent and later Coro::Event.
200 - implement and document Coro::Event event objects.
201 - fix a potential problem in Coro::Event causing crashes.
202 - initialise PL_comppad when creating a new coroutine,
203 avoids crashes on early coro destruction.
204
2053.41 Mon Jan 22 19:19:49 CET 2007
206 - readline on Coro::Handle did not support undefined $/,
207 nor did it deliver partial lines on EOF or error.
208 - implement malloc fallback for stack allocation because
209 stupid broken idiotic OSX has a stupid broken
210 idiotic fits-the-whole-os mmap "implementation" and
211 my dick feels longer if Coro is portable even to
212 obsolete platforms.
213
2143.4 Fri Jan 19 21:52:54 CET 2007
215 - remove t/09_timer.t, as it isn't really testing much
216 but was rather flaky in practise.
217 - async_pool coro would keep arguments and callback alive until
218 it was reused.
219 - cancellation of a coroutine could cause spurious idle calls
220 in cede_notself.
221
2223.3 Sat Jan 6 03:45:00 CET 2007
7 - implement $coro->on_destroy. 223 - implement $coro->on_destroy.
8 - Coro::Event blocking semantics have been changed, 224 - Coro::Event blocking semantics have been changed,
9 documented and - hopefully - improved. 225 documented and - hopefully - improved.
10 - fix nice adding, not subtracting, from priority. 226 - fix nice adding, not subtracting, from priority.
11 - fix ->prio and api_is_ready (patch by Mark Hinds). 227 - fix ->prio and api_is_ready (patch by Mark Hinds).
12 - fixed an assert ("... == prev__cctx->idle_te") 228 - fixed an assert ("... == prev__cctx->idle_te")
13 that could errronously trigger. 229 that could errronously trigger.
14 - fix various large and small memleaks. 230 - fix various large and small memleaks.
15 - use a (hopefully) more stable cancel implementation 231 - use a (hopefully) more stable cancel implementation
16 that immediately frees the coroutine data. 232 that immediately frees the coroutine data.
233 - cede/cede_notself return a status now.
17 - added Coro::guard function. 234 - added Coro::guard function.
18 - added a global coroutine pool for jobs (on my machine, 235 - added a global coroutine pool for jobs (on my machine,
19 I can create and execute 48k simple coros/s with async, 236 I can create and execute 48k simple coros/s with async,
20 and 128k coros with async_pool). 237 and 128k coros with async_pool).
238 - Coro::AIO now uses the coroutine priority as io priority.
21 239
223.2 Fri Dec 22 05:07:09 CET 2006 2403.2 Fri Dec 22 05:07:09 CET 2006
23 - improve portability to slightly older perls. 241 - improve portability to slightly older perls.
24 - use cleaner coroutine destruction. 242 - use cleaner coroutine destruction.
25 - simplify configuration for users. 243 - simplify configuration for users.

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