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Comparing Coro/Changes (file contents):
Revision 1.153 by root, Fri Nov 24 00:31:21 2006 UTC vs.
Revision 1.272 by root, Wed Oct 10 00:53:18 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
84.1
9 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
10 be local to each coro (see Coro::State).
11 - possibly bring back 5.10 compatibility (untested).
12 - work around stupid (and wrong) warning on 5.10 :(.
13 - overlay the saved state over the context stack. This saves
14 a few hundred bytes per coroutine on average and also
15 speeds up context switching a bit.
16 - further tune default stack sizes.
17 - (more) correctly calculate stack usage in coro_rss.
18 - Coro::Storable::blocking_* did not properly lock
19 resulting in races between coroutines.
20 - added Coro::Storable::guard.
21 - stopping to trace a coroutine could destroy the cctx of
22 an unrelated coroutine.
23 - explain the relationship between Perl and C coroutines in
24 more detail in Coro::State.
25 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
26 causing a fork per resolve. This also affected Coro::Socket.
27 - sped up Coro::Event next event handling by 15%, uses less memory.
28 - switch to a separate stack in $coro->call/eval to avoid
29 invalidating pointers.
30
314.03 Sat Oct 6 21:24:00 CEST 2007
32 - added Coro::throw method.
33 - minor code cleanups.
34
354.02 Sat Oct 6 02:36:47 CEST 2007
36 - fix a very minor per-coroutine memleak (a single codereference).
37 - fixed a bug where the currently in-use c context would be freed
38 prematurely (can happen only when programs change the stacksize
39 or use tracing).
40 - tracing can no longer keep a coro alive after it terminated.
41 - do static branch prediction in the common path for gcc. gives
42 about 2-5% speed improvement here.
43
444.01 Fri Oct 5 22:10:49 CEST 2007
45 - instead of recreating *a* standard output handle we simply
46 use STDOUT, which is faster and hopefully more robust.
47
484.0 Fri Oct 5 12:56:00 CEST 2007
49 - incompatibly changed Coro::Storable::freeze.
50 - major new feature: added Coro::Debug, for interactive coroutine
51 debugging, tracing and much more.
52 - major bug fix: unbelievable, but true: $_, $/ and many other
53 "saved" variables actually weren't being saved. This has been fixed,
54 of course, while increasing performance while losing all the save
55 flags.
56 - save flags are gone, and all the api functions dealing with them.
57 - added Coro::Semaphore::adjust.
58 - added Coro::Util::fork_eval.
59 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
60 - added Coro::killall.
61 - reduce initial stack sizes to allow for "micro-coroutines".
62 - better async_pool resource management, moved parts of async_pool
63 handling to XS (major speed improvement).
64 - actually croak before modifying important data structures.
65 - refuse to transfer while compiling.
66 - possibly support eval EXPR better now.
67 - enable assembly per default on linux+bsd x86+amd64.
68 - all internal members were renamed _something for easier subclassing.
69 - many minor tweaks.
70
713.63 Wed May 16 14:10:06 CEST 2007
72 - implement handcoded assembly for x86/amd64 SVR ABI.
73
743.62 Fri Apr 27 21:36:06 CEST 2007
75 - upgrade libcoro (which might set unwind info correctly).
76 - change default on linux to setjmp/longjmp.
77
783.61 Thu Apr 19 12:36:18 CEST 2007
79 - Coro::Storable caused an endless loop when thawing invalid
80 pst's sometimes.
81 - use a Semaphore in Coro::Storable, as Storable doesn't
82 seem to be reentrant (although it is documented to
83 be threadsafe...).
84 - fix Coro::Signal to bring back the original unreliable
85 but stateful semantics.
86 - fixed a lot of typos in Coro.pm (patch submitted by David
87 Steinbrunner, which applied flawlessly).
88
893.6 Sat Apr 14 17:13:31 CEST 2007
90 - added some bugfixes to get eg/myhttpd working again.
91 - added Coro::Storable for often-cede'ing freeze/thaw.
92 - try to do a clean exit when a coroutine calls exit
93 (EXPERIMENTAL).
94 - got rid of indirect call through _coro_init.
95 - updated the partly antique examples in eg/ to
96 work again and be a bit less magic, too.
97 - fixed Coro::Signal semantics to work as documented again.
98
993.55 Sun Mar 25 01:20:47 CET 2007
100 - add SAVE_DEFFH to save the default filehandle and enable
101 it by default.
102 - finally move socket-operations from Coro::Socket to Coro::Handle
103 to be able to unblock foreign sockets.
104 - add Coro::State::save_also and guarded_save.
105 - add count accessor to Coro::Semaphore.
106 - add Coro::State::cctx_stacksize.
107 - just for the fun of it, do not rely on implicit context,
108 which can dramatically improve performance, but people
109 using windows-process-emulation perls do not care much about
110 performance.
111
1123.51 Sun Mar 4 14:18:04 CET 2007
113 - fixed a problem when you weakened references to Coro::State's
114 (patch by Yuval Kogman).
115
1163.501 Wed Feb 28 12:44:07 CET 2007
117 - rename some global symbols as macosx from hell redefines
118 them without asking.
119
1203.5 Tue Feb 13 20:22:53 CET 2007
121 - do AnyEvent model detection earlier, avoiding problems
122 caused by first using AnyEvent and later Coro::Event.
123 - implement and document Coro::Event event objects.
124 - fix a potential problem in Coro::Event causing crashes.
125 - initialise PL_comppad when creating a new coroutine,
126 avoids crashes on early coro destruction.
127
1283.41 Mon Jan 22 19:19:49 CET 2007
129 - readline on Coro::Handle did not support undefined $/,
130 nor did it deliver partial lines on EOF or error.
131 - implement malloc fallback for stack allocation because
132 stupid broken idiotic OSX has a stupid broken
133 idiotic fits-the-whole-os mmap "implementation" and
134 my dick feels longer if Coro is portable even to
135 obsolete platforms.
136
1373.4 Fri Jan 19 21:52:54 CET 2007
138 - remove t/09_timer.t, as it isn't really testing much
139 but was rather flaky in practise.
140 - async_pool coro would keep arguments and callback alive until
141 it was reused.
142 - cancellation of a coroutine could cause spurious idle calls
143 in cede_notself.
144
1453.3 Sat Jan 6 03:45:00 CET 2007
146 - implement $coro->on_destroy.
147 - Coro::Event blocking semantics have been changed,
148 documented and - hopefully - improved.
149 - fix nice adding, not subtracting, from priority.
150 - fix ->prio and api_is_ready (patch by Mark Hinds).
151 - fixed an assert ("... == prev__cctx->idle_te")
152 that could errronously trigger.
153 - fix various large and small memleaks.
154 - use a (hopefully) more stable cancel implementation
155 that immediately frees the coroutine data.
156 - cede/cede_notself return a status now.
157 - added Coro::guard function.
158 - added a global coroutine pool for jobs (on my machine,
159 I can create and execute 48k simple coros/s with async,
160 and 128k coros with async_pool).
161 - Coro::AIO now uses the coroutine priority as io priority.
162
1633.2 Fri Dec 22 05:07:09 CET 2006
164 - improve portability to slightly older perls.
165 - use cleaner coroutine destruction.
166 - simplify configuration for users.
167 - optionally (unrecommended) prefer perl functions over
168 their coro replacements.
169
1703.11 Tue Dec 5 13:11:24 CET 2006
171 - fixed some bogus assert's, but as perl.h disables assert even
172 without NDEBUG (thank you very much), not too many people should
173 notice (that did include myself). Andreas König noticed, though :)
174 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
175 it. Also noticed by Andreas König :)
176 - save/restore tainted status.
177 - verified to pass the testsuite on my 5.9.5.
178
1793.1 Mon Dec 4 23:03:40 CET 2006
180 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
181 - incompatible change: transfer flags are now per-state.
182 - give a better error message on deadlock.
183 - document Coro::nready.
184 - enhanced testsuite.
185
1863.01 Sun Dec 3 23:47:42 CET 2006
187 - forgot to include Coro::Timer.
188
1893.0 Sun Dec 3 22:57:25 CET 2006
190 - the "FINALLY COMPLETELY STABLE" release (coming soon:
191 the "FAMOUS LAST WORDS" release).
192 - implement a new stack sharing algorithm, which uses a stack
193 pool (size currently hardcoded).
194 - make stack sharing mandatory (it no longer uses a heuristic).
195 - eval/die no longer cause weird problems under heavy use.
7 - Coro::Event could cause livelocks if it was used but 196 - Coro::Event could cause livelocks if it was used but
8 Event watchers were used directly. 197 no Coro::Event watchers were used.
198 - Coro::Event now uses asynccheck as prepare does not
199 check for changed watchers.
200 - Coro::Event allows multiple waiting coros and will wake up one
201 per event.
9 - Coro::Event should be cleaner and more efficient now. 202 - Coro::Event should be cleaner and more efficient now.
10 - minor documentation cleanup. 203 - new utility function Coro::unblock_sub.
204 - document the sad fact that Event is no longer reentrant.
205 - putting a coroutine into the ready queue twice could under
206 some circumstances lead to stack corruption.
207 - minor incompatibility: subclassing Coro::State is supported
208 directly now without going through a _coro_state member.
209 - state/coro switching is much faster now.
11 - very minor optimisations and cleanups. 210 - very minor optimisations and code/documentation cleanup.
12 - avoid problems due to compiler inlining. 211 - avoid problems due to compiler inlining.
212 - removed timers from Coro::Timer -> use AnyEvent instead.
213 - replaced Coro::idle coroutine by (cleaner) idle handler.
214 - updated to newest libcoro.
215 - implement enhanced support for valgrind.
216 - implement is_ready and return value for ready.
217 - removed Coro::Cont, it was a misnomer (it's generators),
218 and it was somewhat annoying to get it right. Will come back
219 if somebody asks for it :)
220 - many ->wait methods and Coro::Event could return
221 spuriously without the event having happened.
13 222
142.5 Tue Nov 7 12:22:33 CET 2006 2232.5 Tue Nov 7 12:22:33 CET 2006
15 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 224 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
16 use AnyEvent, moved them to Coro/. 225 use AnyEvent, moved them to Coro/.
17 - added Coro::LWP which contains all the uglyness required to 226 - added Coro::LWP which contains all the uglyness required to

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