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Comparing Coro/Changes (file contents):
Revision 1.138 by root, Sun Nov 5 02:01:24 2006 UTC vs.
Revision 1.287 by root, Mon Oct 29 19:13:56 2007 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 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)).
4 7
5TODO: eg/lwp to use Coro::Select 8 - enable/disable tracing from a new coroutine, not a pooled one.
6TODO: Event/LWP.pm 9 - fix a memleak in Coro::Event.
7 - should compile with perl 5.9.x now. 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 - initial support for EV (libevent interface).
17
184.13 Wed Oct 24 07:26:45 CEST 2007
19 - add Coro::Storable::blocking_thaw.
20 - use a vastly more complicated technique to localise
21 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
22 - use a coroutine for the idle callback Coro::Event,
23 instead of running Event in the current coroutine context.
24 This also catches recursive invocations.
25 - actually report fork errors in gethostbyname and inet_aton.
26
274.11 Thu Oct 11 02:40:24 CEST 2007
28 - port to threaded perls.
29
304.1 Thu Oct 11 02:38:16 CEST 2007
31 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
32 be local to each coro (see Coro::State).
33 - incompatible change: for very deep reasons, cede and cede_notself
34 cannot return anything, so nothing will be returned.
35 - possibly bring back 5.10 compatibility (untested).
36 - work around stupid (and wrong) warning on 5.10 :(.
37 - overlay the saved state over the context stack. This saves
38 a few hundred bytes per coroutine on average and also
39 speeds up context switching a bit.
40 - further tune default stack sizes.
41 - (more) correctly calculate stack usage in coro_rss.
42 - Coro::Storable::blocking_* did not properly lock
43 resulting in races between coroutines.
44 - added Coro::Storable::guard.
45 - stopping to trace a coroutine could destroy the cctx of
46 an unrelated coroutine.
47 - explain the relationship between Perl and C coroutines in
48 more detail in Coro::State.
49 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
50 causing a fork per resolve. This also affected Coro::Socket.
51 - switch to a separate stack in $coro->call/eval to avoid
52 invalidating pointers.
53
544.03 Sat Oct 6 21:24:00 CEST 2007
55 - added Coro::throw method.
56 - minor code cleanups.
57
584.02 Sat Oct 6 02:36:47 CEST 2007
59 - fix a very minor per-coroutine memleak (a single codereference).
60 - fixed a bug where the currently in-use c context would be freed
61 prematurely (can happen only when programs change the stacksize
62 or use tracing).
63 - tracing can no longer keep a coro alive after it terminated.
64 - do static branch prediction in the common path for gcc. gives
65 about 2-5% speed improvement here.
66
674.01 Fri Oct 5 22:10:49 CEST 2007
68 - instead of recreating *a* standard output handle we simply
69 use STDOUT, which is faster and hopefully more robust.
70
714.0 Fri Oct 5 12:56:00 CEST 2007
72 - incompatibly changed Coro::Storable::freeze.
73 - major new feature: added Coro::Debug, for interactive coroutine
74 debugging, tracing and much more.
75 - major bug fix: unbelievable, but true: $_, $/ and many other
76 "saved" variables actually weren't being saved. This has been fixed,
77 of course, while increasing performance while losing all the save
78 flags.
79 - save flags are gone, and all the api functions dealing with them.
80 - added Coro::Semaphore::adjust.
81 - added Coro::Util::fork_eval.
82 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
83 - added Coro::killall.
84 - reduce initial stack sizes to allow for "micro-coroutines".
85 - better async_pool resource management, moved parts of async_pool
86 handling to XS (major speed improvement).
87 - actually croak before modifying important data structures.
88 - refuse to transfer while compiling.
89 - possibly support eval EXPR better now.
90 - enable assembly per default on linux+bsd x86+amd64.
91 - all internal members were renamed _something for easier subclassing.
92 - many minor tweaks.
93
943.63 Wed May 16 14:10:06 CEST 2007
95 - implement handcoded assembly for x86/amd64 SVR ABI.
96
973.62 Fri Apr 27 21:36:06 CEST 2007
98 - upgrade libcoro (which might set unwind info correctly).
99 - change default on linux to setjmp/longjmp.
100
1013.61 Thu Apr 19 12:36:18 CEST 2007
102 - Coro::Storable caused an endless loop when thawing invalid
103 pst's sometimes.
104 - use a Semaphore in Coro::Storable, as Storable doesn't
105 seem to be reentrant (although it is documented to
106 be threadsafe...).
107 - fix Coro::Signal to bring back the original unreliable
108 but stateful semantics.
109 - fixed a lot of typos in Coro.pm (patch submitted by David
110 Steinbrunner, which applied flawlessly).
111
1123.6 Sat Apr 14 17:13:31 CEST 2007
113 - added some bugfixes to get eg/myhttpd working again.
114 - added Coro::Storable for often-cede'ing freeze/thaw.
115 - try to do a clean exit when a coroutine calls exit
116 (EXPERIMENTAL).
117 - got rid of indirect call through _coro_init.
118 - updated the partly antique examples in eg/ to
119 work again and be a bit less magic, too.
120 - fixed Coro::Signal semantics to work as documented again.
121
1223.55 Sun Mar 25 01:20:47 CET 2007
123 - add SAVE_DEFFH to save the default filehandle and enable
124 it by default.
125 - finally move socket-operations from Coro::Socket to Coro::Handle
126 to be able to unblock foreign sockets.
127 - add Coro::State::save_also and guarded_save.
128 - add count accessor to Coro::Semaphore.
129 - add Coro::State::cctx_stacksize.
130 - just for the fun of it, do not rely on implicit context,
131 which can dramatically improve performance, but people
132 using windows-process-emulation perls do not care much about
133 performance.
134
1353.51 Sun Mar 4 14:18:04 CET 2007
136 - fixed a problem when you weakened references to Coro::State's
137 (patch by Yuval Kogman).
138
1393.501 Wed Feb 28 12:44:07 CET 2007
140 - rename some global symbols as macosx from hell redefines
141 them without asking.
142
1433.5 Tue Feb 13 20:22:53 CET 2007
144 - do AnyEvent model detection earlier, avoiding problems
145 caused by first using AnyEvent and later Coro::Event.
146 - implement and document Coro::Event event objects.
147 - fix a potential problem in Coro::Event causing crashes.
148 - initialise PL_comppad when creating a new coroutine,
149 avoids crashes on early coro destruction.
150
1513.41 Mon Jan 22 19:19:49 CET 2007
152 - readline on Coro::Handle did not support undefined $/,
153 nor did it deliver partial lines on EOF or error.
154 - implement malloc fallback for stack allocation because
155 stupid broken idiotic OSX has a stupid broken
156 idiotic fits-the-whole-os mmap "implementation" and
157 my dick feels longer if Coro is portable even to
158 obsolete platforms.
159
1603.4 Fri Jan 19 21:52:54 CET 2007
161 - remove t/09_timer.t, as it isn't really testing much
162 but was rather flaky in practise.
163 - async_pool coro would keep arguments and callback alive until
164 it was reused.
165 - cancellation of a coroutine could cause spurious idle calls
166 in cede_notself.
167
1683.3 Sat Jan 6 03:45:00 CET 2007
169 - implement $coro->on_destroy.
170 - Coro::Event blocking semantics have been changed,
171 documented and - hopefully - improved.
172 - fix nice adding, not subtracting, from priority.
173 - fix ->prio and api_is_ready (patch by Mark Hinds).
174 - fixed an assert ("... == prev__cctx->idle_te")
175 that could errronously trigger.
176 - fix various large and small memleaks.
177 - use a (hopefully) more stable cancel implementation
178 that immediately frees the coroutine data.
179 - cede/cede_notself return a status now.
180 - added Coro::guard function.
181 - added a global coroutine pool for jobs (on my machine,
182 I can create and execute 48k simple coros/s with async,
183 and 128k coros with async_pool).
184 - Coro::AIO now uses the coroutine priority as io priority.
185
1863.2 Fri Dec 22 05:07:09 CET 2006
187 - improve portability to slightly older perls.
188 - use cleaner coroutine destruction.
189 - simplify configuration for users.
190 - optionally (unrecommended) prefer perl functions over
191 their coro replacements.
192
1933.11 Tue Dec 5 13:11:24 CET 2006
194 - fixed some bogus assert's, but as perl.h disables assert even
195 without NDEBUG (thank you very much), not too many people should
196 notice (that did include myself). Andreas König noticed, though :)
197 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
198 it. Also noticed by Andreas König :)
199 - save/restore tainted status.
200 - verified to pass the testsuite on my 5.9.5.
201
2023.1 Mon Dec 4 23:03:40 CET 2006
203 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
204 - incompatible change: transfer flags are now per-state.
205 - give a better error message on deadlock.
206 - document Coro::nready.
207 - enhanced testsuite.
208
2093.01 Sun Dec 3 23:47:42 CET 2006
210 - forgot to include Coro::Timer.
211
2123.0 Sun Dec 3 22:57:25 CET 2006
213 - the "FINALLY COMPLETELY STABLE" release (coming soon:
214 the "FAMOUS LAST WORDS" release).
215 - implement a new stack sharing algorithm, which uses a stack
216 pool (size currently hardcoded).
217 - make stack sharing mandatory (it no longer uses a heuristic).
218 - eval/die no longer cause weird problems under heavy use.
219 - Coro::Event could cause livelocks if it was used but
220 no Coro::Event watchers were used.
221 - Coro::Event now uses asynccheck as prepare does not
222 check for changed watchers.
223 - Coro::Event allows multiple waiting coros and will wake up one
224 per event.
225 - Coro::Event should be cleaner and more efficient now.
226 - new utility function Coro::unblock_sub.
227 - document the sad fact that Event is no longer reentrant.
228 - putting a coroutine into the ready queue twice could under
229 some circumstances lead to stack corruption.
230 - minor incompatibility: subclassing Coro::State is supported
231 directly now without going through a _coro_state member.
232 - state/coro switching is much faster now.
233 - very minor optimisations and code/documentation cleanup.
234 - avoid problems due to compiler inlining.
235 - removed timers from Coro::Timer -> use AnyEvent instead.
236 - replaced Coro::idle coroutine by (cleaner) idle handler.
237 - updated to newest libcoro.
238 - implement enhanced support for valgrind.
239 - implement is_ready and return value for ready.
240 - removed Coro::Cont, it was a misnomer (it's generators),
241 and it was somewhat annoying to get it right. Will come back
242 if somebody asks for it :)
243 - many ->wait methods and Coro::Event could return
244 spuriously without the event having happened.
245
2462.5 Tue Nov 7 12:22:33 CET 2006
247 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
248 use AnyEvent, moved them to Coro/.
249 - added Coro::LWP which contains all the uglyness required to
250 make LWP non-blocking.
251 - should work with perl 5.9.x now (Andreas König made me do it).
252 - fixed another bug in Coro::Select when the timeout was undef.
8 - reuse PL_start_env for all coros, saves some memory per coroutine. 253 - reuse PL_start_env for all coros, saves some memory per coroutine.
9 - manage PL_top_env differently, hopefully to avoid panic: top_env. 254 - manage PL_top_env differently, hopefully to avoid panic: top_env.
10 - timeout argument was not properly used in Coro::Socket. 255 - timeout argument was not properly used in Coro::Socket.
11 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 256 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
12 - emulate undocumented(!) functionality of IO::Socket required 257 - emulate undocumented(!) functionality of IO::Socket required
13 by LWP(!!). 258 by LWP(!!).
14 - updated eg/lwp to work with newer lwp's. 259 - updated eg/lwp to work with newer lwp's.
15 - made Coro::Util an AnyEvent user, moved it to Coro/.
16 - remove "FATAL: uncaught exception" prefix. coroutines that die 260 - remove "FATAL: uncaught exception" prefix. Coroutines that die
17 kill the whole process, just as exceptions in the main coroutine 261 kill the whole process, just as exceptions in the main "coroutine"
18 do. 262 did already.
19 263
202.1 Wed Nov 1 23:01:13 CET 2006 2642.1 Wed Nov 1 23:01:13 CET 2006
21 - fix a long-standing bug in Coro::Select where select with 265 - fix a long-standing bug in Coro::Select where select with
22 zero timeout would instead change the current default filehandle. 266 zero timeout would instead change the current default filehandle.
23 - use a simpler and hopefully more robust way to clone padlists 267 - use a simpler and hopefully more robust way to clone padlists

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