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Revision: 1.157
Committed: Sun Nov 26 17:35:42 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.156: +1 -0 lines
Log Message:
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File Contents

# Content
1 Revision history for Perl extension Coro.
2
3 TODO: check wether stack-sharing is still effective
4 TODO: more effective stack sharing by having one "default stack" for "simple" coroutines?
5 TODO: verify exception frame changes and force stack copies?
6
7 - reimplement a new stack sharing algorithm.
8 - make stack sharing mandatory (it no longer uses a heuristic).
9 - eval/die no longer cause weird problems under heavy use.
10 - Coro::Event could cause livelocks if it was used but
11 Event watchers were used directly.
12 - Coro::Event should be cleaner and more efficient now.
13 - minor incompatibility: subclassing is supported directly now
14 without going through a _coro_state member.
15 - state/coro switching is much faster now.
16 - very minor optimisations and code/documentation cleanup.
17 - avoid problems due to compiler inlining.
18 - removed timers from Coro::Timer -> use AnyEvent instead.
19 - replaced Coro::idle coroutine by (cleaner) idle handler.
20 - updated to newest libcoro.
21
22 2.5 Tue Nov 7 12:22:33 CET 2006
23 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
24 use AnyEvent, moved them to Coro/.
25 - added Coro::LWP which contains all the uglyness required to
26 make LWP non-blocking.
27 - should work with perl 5.9.x now (Andreas König made me do it).
28 - fixed another bug in Coro::Select when the timeout was undef.
29 - reuse PL_start_env for all coros, saves some memory per coroutine.
30 - manage PL_top_env differently, hopefully to avoid panic: top_env.
31 - timeout argument was not properly used in Coro::Socket.
32 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
33 - emulate undocumented(!) functionality of IO::Socket required
34 by LWP(!!).
35 - updated eg/lwp to work with newer lwp's.
36 - remove "FATAL: uncaught exception" prefix. Coroutines that die
37 kill the whole process, just as exceptions in the main "coroutine"
38 did already.
39
40 2.1 Wed Nov 1 23:01:13 CET 2006
41 - fix a long-standing bug in Coro::Select where select with
42 zero timeout would instead change the current default filehandle.
43 - use a simpler and hopefully more robust way to clone padlists
44 (uses less memory and a perl function instead of our own).
45 - coro can now create a stack guard area on many architectures.
46 - Coro::AIO properly reexports additional functions from IO::AIO.
47 - updated libcoro with a workaround for OS X,
48 pach and testing by Michael Schwern.
49
50 2.0 Tue Oct 24 05:47:17 CEST 2006
51 - support additional aio requests in Coro::AIO.
52
53 1.9 (never properly released due to a glitch)
54
55 1.8 Thu Feb 2 00:59:06 CET 2006
56 - applied suggested patch by SAMV to avoid problems during stupid
57 mark & sweep gc run.
58 - applied patch by Scott Walters for 5.9.3 compatibility.
59
60 1.7 Tue Dec 27 01:41:58 CET 2005
61 - added Coro::AIO, a thin wrapper around IO::AIO.
62 - improved Makefile.PL explanations.
63
64 1.6 Mon Dec 12 21:30:05 CET 2005
65 - additionally save PM_curpm might fix as-of-yet
66 unseen problems with regex matches being attributed to the
67 wrong package.
68 - add t/10_bugs.t, which currently checks against imho broken
69 perls that use 0.26MB of stack space per Perl_magic_get
70 invocation (newer linuxes) as opposed to the 0.0002MB perl
71 normally uses.
72 - make stacksize configurable for the ultimate debian experience.
73
74 1.51 Mon Dec 12 18:48:36 CET 2005
75 - remove debugging warn() accidentally left in Coro::Select.
76
77 1.5 Tue Nov 29 13:32:44 CET 2005
78 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
79 - fix Coro::Select 'select'.
80 - strict'ify some modules.
81 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
82 - use XSLoader in selected modules.
83 - remove some 5.6 compatibility cruft.
84
85 1.4 Tue Sep 6 00:11:05 CEST 2005
86 - libcoro did not take into account the trampoline on amd64,
87 when 'l'inux method was used.
88
89 1.31 Tue Aug 30 23:31:33 CEST 2005
90 - some portability fixes/workarounds.
91
92 1.3 Sat Aug 20 03:08:56 CEST 2005
93 - no code changes. module seems to work fine.
94 - improve Coro::State docs, remove reference to nonexisting
95 Coro::State::flush method.
96 - no longer autodetect windows, present it as an option instead.
97
98 1.2 Mon May 16 02:00:55 CEST 2005
99 - included libcoro.c earlier in State.xs, might improve portability.
100 - use a faster and possibly more stable Coro::Cont implementation.
101 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
102 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
103 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
104
105 1.11 Thu Mar 3 18:00:52 CET 2005
106 - change of contact address.
107
108 1.1 Tue Feb 22 20:51:16 CET 2005
109 - support [l]inux method on amd64.
110 - allow some context switches while compiling/eval'ing.
111
112 1.0 Tue Aug 10 03:47:27 CEST 2004
113 - Event 0.89 fixes the bug again.
114 - fix the remaining(??) memleak. I didn't free the cache-AV for
115 padlists, so one AV per created anon-sub leaked.
116
117 0.97 Fri May 14 15:23:32 CEST 2004
118 - remove stupid gcc extension that was an experiment only anyway.
119
120 0.96 Thu May 13 18:09:29 CEST 2004
121 - tell people if they have yet another broken Event variant.
122 - made Coro to work _better_ with threads (it seems that, as long
123 as you use Coros in one thread only everything will work fine.
124 Looking at the perl source the problem might be missing locking
125 between Coro and some perl internal routines. That's not easily
126 fixable).
127 - (hopefully) got rid of the static xnext inside transfer.
128
129 0.95 Sun Feb 15 03:20:28 CET 2004
130 - removed Coro::State::flush, implemented a new and much
131 faster caching mechanism by attaching magic to the CV.
132 - a memleak with (real) closures remains.
133 - dramatically reduced size of stacks to 65536 (linux/x86), after
134 observing that even myhttpd never had more than a kilobyte
135 of stack in use (stack is still only physically allocated in
136 pagesize increments for systems suporting mmap).
137 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
138 - fix for threaded perl.
139
140 0.9 Sun Nov 23 04:32:39 CET 2003
141 - fix a few very hard to track down but (of course) stupid
142 memory leaks.
143 - stringify version number to avoid locale problems :(.
144 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
145 hopefully ignoring it "just works".
146
147 0.8 Wed Nov 5 19:38:40 CET 2003
148 - port to perl5.005_03, but only 5.8.x+ is supported!
149 - honor LocalAddr even without LocalPort in Coro::Socket.
150
151 0.7 Tue May 27 03:12:38 CEST 2003
152 - the version jump indicates some level of testing, not gobs
153 of new features.
154 - uh... I found the prompt function in ExtUtils::MakeMaker.
155 Highly correct stuff, that is...
156 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
157 the fix is not well understood by the author, so beware :(.
158
159 0.652 Thu May 8 02:54:46 CEST 2003
160 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
161 cause version 4 doesn't have ucontext.
162 - Benjamin Reed reported that setjmp works fine on darwin,
163 so preselect it.
164
165 0.651 Sat Mar 29 15:00:23 CET 2003
166 - fix a bug in Coro::Handle where some bytes could get lost
167 on reading, reported by jason@nichego.net.
168
169 0.65 Sun Mar 23 00:08:26 CET 2003
170 - added a README.linux-glibc.
171 - new module Coro::Select.
172 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
173 (I never claimed that I know what I am doing ;).
174 - set default to setjmp/longjmp on non-x86-linux.
175
176 0.6 Thu Nov 21 11:09:06 CET 2002
177 - made lazy context switching the default.
178 - fixed the bug where SemaphoreSet::guard
179 was the same as timed_guard and timed_guard was missing.
180 - fix a memleak in Coro::Timer.
181 - reclassified context sharing as not experimental.
182
183 0.534 Sun Apr 14 03:05:12 CEST 2002
184 - fixed backspace => tab in header parsing (myhttpd).
185 - added eg/readline, for elmex.
186 - Coro::Event now calls ->start on first call instead of
187 ->again, which created wrong timeouts for the first ->next.
188 - fixed a bug where Coro::Socket returned a closed socket instead
189 of nothing on ECONNREFUSED and similar error conditions.
190
191 0.533 Mon Feb 18 18:49:40 CET 2002
192 - adapt to finally working Event-0.85.
193 - fixed buggy event initialization (trapped under windows, but how
194 could it possibly have worked anywhere?)
195
196 0.532 Wed Jan 16 02:45:32 CET 2002
197 - removed the reference to pp_entersub, might work on
198 (some) win32 perls now (testsuite works under cygwin,
199 without Event, which freezes).
200
201 0.531 Mon Dec 10 22:18:44 CET 2001
202 - Fixed a bug in SemaphoreSet::timed_down.
203
204 0.53 Tue Nov 27 21:11:13 CET 2001
205 - some tests for Event.
206 - slightly different internal architecture to get refcnt into the object
207 and not the reference. might fix a few bugs, certainly did introduce
208 new ones.
209 - Coro::Timer (independent of Event).
210 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
211
212 0.52 Tue Nov 6 21:36:18 CET 2001
213 - ported to cygwin (trivial).
214 patch by Gerrit P. Haase <gp@familiehaase.de>.
215 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
216
217 0.51 Thu Nov 1 20:39:01 CET 2001
218 - terminate/cancel now work properly (otherwise termination
219 could cause a "next coroutine is not and contains not..."
220 error.
221 - added Coro::Socket::shutdown.
222 - Coro::Event::loop no is the same as Event::loop.
223 - implemented terminate with args + join.
224
225 0.5 Fri Sep 28 16:15:35 CEST 2001
226 - fixed "print" on a Coro::Handle. The print method worked.
227 - small tweaks (seem to reduce memory consumption a lot)
228 in various modules.
229 - splendid use of "no warnings" scattered throughout.
230 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
231
232 0.49 Sun Sep 16 02:42:45 CEST 2001
233 - changed some method calls to function calls for speed
234 inside Coro::Handle.
235 - make Coro::Handle use an array instead of a hash for
236 speed reasons.
237 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
238 sjlj and ucontext should now work.
239 - IRIX-specific port for libcoro.
240 - swapped order of accept results to match IO::Socket.
241 - changed getsock/peername to sock/peername to match IO::Socket.
242 - fixed a bug that caused segfault when returning to main task
243 under some circumstances.
244 - other bugfixes.
245
246 0.45 Sun Sep 2 02:54:01 CEST 2001
247 - new method Coro::Handle::timeout.
248 - corrected speling of set...name to get...name in Coro::Socket.
249 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
250 - Coro::Handle now supports fileno and FILENO.
251 - added eg/myhttpd, a web server.
252 - Coro::Socket now accepts numeric ports as well as "port(number)"
253 syntax.
254 - moved some scheduling primitives into xs code. more to come.
255 - new simple priority system.
256 - implemented Coro::Event using XS, almost four times faster!
257 - small memory corruption problem fixed (boy that was difficult).
258
259 0.13 Wed Aug 8 16:53:07 CEST 2001
260 - new method Coro::Handle::readline.
261 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
262 (see eg/lwp on how to make LWP non-blocking).
263 - renamed Coro::Socket::new_inet to new.
264 - added Coro::Util, some utility functions.
265 - die/eval now works better (still get annoying (but true ;)
266 "Callback called exit" messages).
267 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
268 - much better Coro::Socket support.
269
270 0.12 Fri Jul 27 04:19:01 CEST 2001
271 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
272 - very experimental stack sharing algorithm. not 100% safe but
273 should work well in practise ;)
274 - added Coro::RWLock.
275 - Coro::Specific now works.
276
277 0.11 Tue Jul 24 22:49:21 CEST 2001
278 - added specialized hack for newer and older linux versions (fast).
279 - renamed Coro::Event::IO to Coro::Handle.
280 - new module Coro::Socket.
281
282 0.1 Tue Jul 24 01:47:53 CEST 2001
283 - release candidate 3. A rather new internal structure :(
284 - the great renaming: Damian Conway gave me a suitable replacement
285 for yield.
286 - added Coro/libcoro, a portable coroutine implementation for C
287 (not even perl-dependent!!!), which can be used by Coro::State.
288 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
289 perl-5.6.
290 - new function Coro::Event::idle.
291 - the idle process is now overriden
292 by default in Coro::Event.
293 - Coro::Channel now enforces the size.
294 - canceling events now works in all cases.
295 - Coro state now include $_ and $@.
296 - yet another bug workaround that I do not really understand :(
297 - new module Coro::Event::IO (very undocumented) to do
298 non-blocking i/o.
299 - performance tuning.
300
301 0.08 Thu Jul 19 06:13:25 CEST 2001
302 - release candidate 2 (new functionality).
303 - add Coro::State::flush function.
304 - transfer now supports a flags value (mostly for speed ATM).
305 - might compile and work in the presence of threads now.
306 - continuations have a saner syntax.
307 - no more memleaks.
308
309 0.07 Tue Jul 17 17:40:18 CEST 2001
310 - release candidate 1 ;)
311 - slightly nicer code.
312 - fixed a scheduling bug in Coro::Event.
313
314 0.06 Tue Jul 17 04:23:24 CEST 2001
315 - ok, I found the showstopper - the same sub must not be
316 re-entered in two different coroutines, otherwise => crash. I
317 see no easy solution to this problem, except by walking the call
318 chaing and saving/restoring the cv's, which is what I do now.
319 - memory leaks still latent, especially at thread termination.
320 - Coro::Event now works (haha).
321
322 0.05 Sun Jul 15 17:32:20 CEST 2001
323 - fixed a few issues in Coro::Event.
324 - I forgot to include Coro::Event in 0.04 :(:(:(
325
326 0.04 Sun Jul 15 05:24:59 CEST 2001
327 - @_ is now properly localized.
328 - Coro::State is now easier subclassable.
329 - Coro::Cont now coroutine-aware.
330 - Coro::Specific is a low-overhead module to create
331 coroutine-specific vars.
332 - Coro::Event provides a simple interface to Event.
333
334 0.03 Fri Jul 13 14:51:52 CEST 2001
335 - transfer() now implemented in XS (beware).
336 - new module Coro::Cont for really faked continuations.
337 - big internal architecture changes: Coro::State is now
338 really low-level and can thus be used to implement other
339 interesting things, While "Coro::" implements a process-like
340 model. Still crude and subject to change.
341 - $_ and $@ are no longer being localized.
342
343 0.02 Tue Jul 10 01:38:17 CEST 2001
344 - implemented "async" attribute.
345 - $_ and $@ are now localized.
346 - added Coro::Channel.
347 - more testcases, still no docs.
348
349 0.01 Tue Jul 3 02:18:41 CEST 2001
350 - original version; copied from Convert::Scalar.
351