ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
(Generate patch)

Comparing Coro/Changes (file contents):
Revision 1.155 by root, Sat Nov 25 01:14:11 2006 UTC vs.
Revision 1.283 by root, Thu Oct 25 08:13:59 2007 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 but very lacking in others (higher level ipc)).
6 7
8 - enable/disable tracing from a new coroutine, not a pooled one.
9 - fix a memleak in Coro::Event.
10
114.13 Wed Oct 24 07:26:45 CEST 2007
12 - add Coro::Storable::blocking_thaw.
13 - use a vastly more complicated technique to localise
14 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
15 - use a coroutine for the idle callback Coro::Event,
16 instead of running Event in the current coroutine context.
17 This also catches recursive invocations.
18 - actually report fork errors in gethostbyname and inet_aton.
19
204.11 Thu Oct 11 02:40:24 CEST 2007
21 - port to threaded perls.
22
234.1 Thu Oct 11 02:38:16 CEST 2007
24 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
25 be local to each coro (see Coro::State).
26 - incompatible change: for very deep reasons, cede and cede_notself
27 cannot return anything, so nothing will be returned.
28 - possibly bring back 5.10 compatibility (untested).
29 - work around stupid (and wrong) warning on 5.10 :(.
30 - overlay the saved state over the context stack. This saves
31 a few hundred bytes per coroutine on average and also
32 speeds up context switching a bit.
33 - further tune default stack sizes.
34 - (more) correctly calculate stack usage in coro_rss.
35 - Coro::Storable::blocking_* did not properly lock
36 resulting in races between coroutines.
37 - added Coro::Storable::guard.
38 - stopping to trace a coroutine could destroy the cctx of
39 an unrelated coroutine.
40 - explain the relationship between Perl and C coroutines in
41 more detail in Coro::State.
42 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
43 causing a fork per resolve. This also affected Coro::Socket.
44 - switch to a separate stack in $coro->call/eval to avoid
45 invalidating pointers.
46
474.03 Sat Oct 6 21:24:00 CEST 2007
48 - added Coro::throw method.
49 - minor code cleanups.
50
514.02 Sat Oct 6 02:36:47 CEST 2007
52 - fix a very minor per-coroutine memleak (a single codereference).
53 - fixed a bug where the currently in-use c context would be freed
54 prematurely (can happen only when programs change the stacksize
55 or use tracing).
56 - tracing can no longer keep a coro alive after it terminated.
57 - do static branch prediction in the common path for gcc. gives
58 about 2-5% speed improvement here.
59
604.01 Fri Oct 5 22:10:49 CEST 2007
61 - instead of recreating *a* standard output handle we simply
62 use STDOUT, which is faster and hopefully more robust.
63
644.0 Fri Oct 5 12:56:00 CEST 2007
65 - incompatibly changed Coro::Storable::freeze.
66 - major new feature: added Coro::Debug, for interactive coroutine
67 debugging, tracing and much more.
68 - major bug fix: unbelievable, but true: $_, $/ and many other
69 "saved" variables actually weren't being saved. This has been fixed,
70 of course, while increasing performance while losing all the save
71 flags.
72 - save flags are gone, and all the api functions dealing with them.
73 - added Coro::Semaphore::adjust.
74 - added Coro::Util::fork_eval.
75 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
76 - added Coro::killall.
77 - reduce initial stack sizes to allow for "micro-coroutines".
78 - better async_pool resource management, moved parts of async_pool
79 handling to XS (major speed improvement).
80 - actually croak before modifying important data structures.
81 - refuse to transfer while compiling.
82 - possibly support eval EXPR better now.
83 - enable assembly per default on linux+bsd x86+amd64.
84 - all internal members were renamed _something for easier subclassing.
85 - many minor tweaks.
86
873.63 Wed May 16 14:10:06 CEST 2007
88 - implement handcoded assembly for x86/amd64 SVR ABI.
89
903.62 Fri Apr 27 21:36:06 CEST 2007
91 - upgrade libcoro (which might set unwind info correctly).
92 - change default on linux to setjmp/longjmp.
93
943.61 Thu Apr 19 12:36:18 CEST 2007
95 - Coro::Storable caused an endless loop when thawing invalid
96 pst's sometimes.
97 - use a Semaphore in Coro::Storable, as Storable doesn't
98 seem to be reentrant (although it is documented to
99 be threadsafe...).
100 - fix Coro::Signal to bring back the original unreliable
101 but stateful semantics.
102 - fixed a lot of typos in Coro.pm (patch submitted by David
103 Steinbrunner, which applied flawlessly).
104
1053.6 Sat Apr 14 17:13:31 CEST 2007
106 - added some bugfixes to get eg/myhttpd working again.
107 - added Coro::Storable for often-cede'ing freeze/thaw.
108 - try to do a clean exit when a coroutine calls exit
109 (EXPERIMENTAL).
110 - got rid of indirect call through _coro_init.
111 - updated the partly antique examples in eg/ to
112 work again and be a bit less magic, too.
113 - fixed Coro::Signal semantics to work as documented again.
114
1153.55 Sun Mar 25 01:20:47 CET 2007
116 - add SAVE_DEFFH to save the default filehandle and enable
117 it by default.
118 - finally move socket-operations from Coro::Socket to Coro::Handle
119 to be able to unblock foreign sockets.
120 - add Coro::State::save_also and guarded_save.
121 - add count accessor to Coro::Semaphore.
122 - add Coro::State::cctx_stacksize.
123 - just for the fun of it, do not rely on implicit context,
124 which can dramatically improve performance, but people
125 using windows-process-emulation perls do not care much about
126 performance.
127
1283.51 Sun Mar 4 14:18:04 CET 2007
129 - fixed a problem when you weakened references to Coro::State's
130 (patch by Yuval Kogman).
131
1323.501 Wed Feb 28 12:44:07 CET 2007
133 - rename some global symbols as macosx from hell redefines
134 them without asking.
135
1363.5 Tue Feb 13 20:22:53 CET 2007
137 - do AnyEvent model detection earlier, avoiding problems
138 caused by first using AnyEvent and later Coro::Event.
139 - implement and document Coro::Event event objects.
140 - fix a potential problem in Coro::Event causing crashes.
141 - initialise PL_comppad when creating a new coroutine,
142 avoids crashes on early coro destruction.
143
1443.41 Mon Jan 22 19:19:49 CET 2007
145 - readline on Coro::Handle did not support undefined $/,
146 nor did it deliver partial lines on EOF or error.
147 - implement malloc fallback for stack allocation because
148 stupid broken idiotic OSX has a stupid broken
149 idiotic fits-the-whole-os mmap "implementation" and
150 my dick feels longer if Coro is portable even to
151 obsolete platforms.
152
1533.4 Fri Jan 19 21:52:54 CET 2007
154 - remove t/09_timer.t, as it isn't really testing much
155 but was rather flaky in practise.
156 - async_pool coro would keep arguments and callback alive until
157 it was reused.
158 - cancellation of a coroutine could cause spurious idle calls
159 in cede_notself.
160
1613.3 Sat Jan 6 03:45:00 CET 2007
162 - implement $coro->on_destroy.
163 - Coro::Event blocking semantics have been changed,
164 documented and - hopefully - improved.
165 - fix nice adding, not subtracting, from priority.
166 - fix ->prio and api_is_ready (patch by Mark Hinds).
167 - fixed an assert ("... == prev__cctx->idle_te")
168 that could errronously trigger.
169 - fix various large and small memleaks.
170 - use a (hopefully) more stable cancel implementation
171 that immediately frees the coroutine data.
172 - cede/cede_notself return a status now.
173 - added Coro::guard function.
174 - added a global coroutine pool for jobs (on my machine,
175 I can create and execute 48k simple coros/s with async,
176 and 128k coros with async_pool).
177 - Coro::AIO now uses the coroutine priority as io priority.
178
1793.2 Fri Dec 22 05:07:09 CET 2006
180 - improve portability to slightly older perls.
181 - use cleaner coroutine destruction.
182 - simplify configuration for users.
183 - optionally (unrecommended) prefer perl functions over
184 their coro replacements.
185
1863.11 Tue Dec 5 13:11:24 CET 2006
187 - fixed some bogus assert's, but as perl.h disables assert even
188 without NDEBUG (thank you very much), not too many people should
189 notice (that did include myself). Andreas König noticed, though :)
190 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
191 it. Also noticed by Andreas König :)
192 - save/restore tainted status.
193 - verified to pass the testsuite on my 5.9.5.
194
1953.1 Mon Dec 4 23:03:40 CET 2006
196 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
197 - incompatible change: transfer flags are now per-state.
198 - give a better error message on deadlock.
199 - document Coro::nready.
200 - enhanced testsuite.
201
2023.01 Sun Dec 3 23:47:42 CET 2006
203 - forgot to include Coro::Timer.
204
2053.0 Sun Dec 3 22:57:25 CET 2006
206 - the "FINALLY COMPLETELY STABLE" release (coming soon:
207 the "FAMOUS LAST WORDS" release).
7 - reimplement a new stack sharing algorithm. 208 - implement a new stack sharing algorithm, which uses a stack
209 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 210 - make stack sharing mandatory (it no longer uses a heuristic).
211 - eval/die no longer cause weird problems under heavy use.
9 - Coro::Event could cause livelocks if it was used but 212 - Coro::Event could cause livelocks if it was used but
10 Event watchers were used directly. 213 no Coro::Event watchers were used.
214 - Coro::Event now uses asynccheck as prepare does not
215 check for changed watchers.
216 - Coro::Event allows multiple waiting coros and will wake up one
217 per event.
11 - Coro::Event should be cleaner and more efficient now. 218 - Coro::Event should be cleaner and more efficient now.
219 - new utility function Coro::unblock_sub.
220 - document the sad fact that Event is no longer reentrant.
221 - putting a coroutine into the ready queue twice could under
222 some circumstances lead to stack corruption.
12 - minor incompatibility: subclassing is supported directly now 223 - minor incompatibility: subclassing Coro::State is supported
13 without going through a _coro_state member. 224 directly now without going through a _coro_state member.
14 - process swicthing is much faster now. 225 - state/coro switching is much faster now.
15 - very minor optimisations and code/documentation cleanup. 226 - very minor optimisations and code/documentation cleanup.
16 - avoid problems due to compiler inlining. 227 - avoid problems due to compiler inlining.
17 - possibly better support for threads.
18 - removed timers from Coro::Timer -> use AnyEvent instead. 228 - removed timers from Coro::Timer -> use AnyEvent instead.
19 - replaced Coro::idle coroutine by (cleaner) idle handler. 229 - replaced Coro::idle coroutine by (cleaner) idle handler.
230 - updated to newest libcoro.
231 - implement enhanced support for valgrind.
232 - implement is_ready and return value for ready.
233 - removed Coro::Cont, it was a misnomer (it's generators),
234 and it was somewhat annoying to get it right. Will come back
235 if somebody asks for it :)
236 - many ->wait methods and Coro::Event could return
237 spuriously without the event having happened.
20 238
212.5 Tue Nov 7 12:22:33 CET 2006 2392.5 Tue Nov 7 12:22:33 CET 2006
22 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 240 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
23 use AnyEvent, moved them to Coro/. 241 use AnyEvent, moved them to Coro/.
24 - added Coro::LWP which contains all the uglyness required to 242 - added Coro::LWP which contains all the uglyness required to

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines