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Comparing Coro/Changes (file contents):
Revision 1.619 by root, Tue Nov 5 14:38:46 2013 UTC vs.
Revision 1.691 by root, Thu Jun 24 19:10:06 2021 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell). 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)? 4TODO: channel->maxsize(newsize)?
5TODO: __GCC_HAVE_DWARF2_CFI_ASM 5TODO: __GCC_HAVE_DWARF2_CFI_ASM
6TODO: swap_sv, maybe add scope_swap_sv, andallow to unswap by repeat? 6TODO: swap_sv, maybe add scope_swap_sv?
7TODO: swap_sv not undone in pool 7TODO: croak when async_pool tries to run canceled thread?
8TODO: how to debug safe_cancel failure (vebrose mode? show how to make backtrace?)
9TODO: scalar context for Coro::AIO wrappers?
10
11TODO: State.xs could short-circuit some macros such as CORO_EXECUTE_SLF
12TODO: use frame->destroy to improve Coro::EV
13
14TODO: concurrent ->recv on same condvar
15sub Coro::AnyEvent::CondVar::_send {
16 if ($_[0]{_ae_coro}) {
17 $_->ready
18 for values %{ delete $_[0]{_ae_coro} }
19 }
20};
21
22sub Coro::AnyEvent::CondVar::_wait {
23 until ($_[0]{_ae_sent}) {
24 $AnyEvent::CondVar::Base::WAITING = 0; # avoid recursive check by AnyEvent
25 local $_[0]{_ae_coro}{$Coro::current+0} = $Coro::current;
26 Coro::schedule;
27 }
28};
29
30
316.57 Wed Jul 29 15:08:44 CEST 2020
32 - override AnyEvent condvar methods "properly", as AnyEvent
33 has support for pluggable condvars since 2011. This also
34 avoids problems with recursive waits by avoiding to mix
35 impl methods with coro code.
36 - allow rouse_wait to be called in a different thread.
37 - slightly clarify rouse_cb/rouse_wait documentation.
38 - slightly improve rouse callback performance and memory usage.
39 - try to report correct calller when throwing exception in
40 on $condvar->recv, not a useless line in Coro::AnyEvent.
41
426.56 Thu Feb 20 19:40:07 CET 2020
43 - Coro::EV::time*once functions used ev_once, which is not cancelable.
44 This could cause problems due to I/O watchers not being stopped up
45 on exceptions/cancellation.
46
476.55 Fri Jul 19 17:28:09 CEST 2019
48 - Coro::RWLock woke up only one reader instead of all after a wrlock
49 (analyzed and patch by Maxim Skorobogatov).
50 - slightly improved documentation of Coro::RWLock and RWLock testcase.
51 - quickly (re)-ported to minix 3.3 before minix crashed again.
52
536.54 Sun Dec 16 11:06:07 CET 2018
54 - reinstate Coro::Select::select prototype - it breaks more than it fixes.
55
566.53 Sun Dec 16 10:33:15 CET 2018
57 - the autogenerated prototypes of Coro::AIO now add ";" at the end
58 to avoid generating named unary operators and messing up parsing
59 (mostly affects aio_mlockall 4 | 8 which was parsed as
60 (aio_mlockall 4) | 8).
61 - do not use a prototype for select in Coro::Select, as CORE::select also
62 doesn't have one.
63
646.52 Tue Aug 14 18:49:43 CEST 2018
65 - libcoro update: allow sharing of coro threads using the pthreads
66 backend among different pthreads, as is required by Coro::Multicore.
67 - always allow ->call and ->eval when the coro is the current coroutine. this
68 makes it possible, among other things, to call these on $Coro::main.
69 - minor code cleanups.
70
716.514 Thu Aug 31 18:25:31 CEST 2017
72 - safe_cancel no longer croaks when called on already-destroyed
73 thread, but instead "just works".
74
756.513 Sat Jul 15 01:18:51 CEST 2017
76 - experimental 5.22 comaptibility changes (PadlistNAMES).
77 - removed attributes example and made sure the other examples
78 still work.
79 - fix some statevar types for newer perls, should be of no consequence.
80
816.512 Fri Jul 14 05:03:17 CEST 2017
82 - seems to pass test suite down till 5.8.9, so make this the
83 minimum requirement in Makefile.PL.
84 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
85 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
86 - disable FORTIFY_SOURCE to avoid broken (but well-intentioned)
87 fortified longjmp variants in some libcs.
88 - re-try JIT allocation without PROT_EXEC, to hopefully improve
89 portability (still doesn't seem to work around broken selinux
90 mmap everywhere).
91 - speling fixes (Xavier Guimard).
92
936.511 Sun Jun 26 23:44:50 CEST 2016
94 - make it compile with threaded perls again.
95 - simplify and speed up __DIE__ and __WARN__ handling.
96
976.51 Sat Jun 25 20:57:20 CEST 2016
98 - 6.5 release didn't compile on most older perls due to
99 a logic error enabling experimental 5.24 code for all versions.
100 - since various broken or deficient patches float around
101 to work around the vtbl API breakage in perl, let's provide
102 our own workaround, which seems to be much less invasive
103 and more compatible than the approaches seen so far. YMMV.
104 - work around assertion failure in perl_destruct on 5.24
105 (analyzed by Dave Mitchell).
106
1076.5 Wed Jun 22 22:23:50 CEST 2016
108 - swap_sv swapping order was not symmetrical, causing
109 wrong swaps when swap_sv was used multiple times on the
110 same sv in the same thread.
111 - swap_sv calls can now be undone by calling it again
112 with the same variables.
113 - swap_sv calls will now be undone in async_pool threads.
114 - split Coro::Semaphore::up/adjust into separate xs functions
115 for better error reporting, at slight codesize increase.
116 - (libcoro) arm assembly support, please test and report.
117 - adjust to PL_savestack changes in perl 5.24 (adapted from
118 the debian patch, which unfortunately gets it wrong).
119
1206.49 Sat Oct 17 01:40:12 CEST 2015
121 - throwing an exception to a thread waiting in
122 Coro::Handle using Coro::EV did not stop the watchers,
123 causing the next call to fail (testcase by Martin Pritchard).
124 - bump minimum perl version to 5.10.
125
1266.48 Sun Oct 4 19:03:51 CEST 2015
127 - fix memory leak when Coro::Handle uses Coro::EV internally
128 (testcase by Sten Sten).
129 - update code to libev 4 API (internally, Coro still used the
130 version 3 API calls).
131 - remove unused hv_sig.
132
1336.47 Sat Jul 11 03:58:20 CEST 2015
134 - swap_svs - NVs can be in the SV head beginning with 5.20.
135
1366.46 Tue Jun 30 14:36:30 CEST 2015
137 - restore portability to perls with windows fork emulation
138 (patch by Petr Písař).
139
1406.45 Tue Jun 30 01:40:08 CEST 2015
141 - restore portability to perl 5.16 and below.
142
1436.44 Tue Jun 30 00:41:54 CEST 2015
144 - avoid segfaulting (or worse) when tracing a canceled thread.
145 - the Event module silently broke it's public hook API, causing
146 failures on perls compiled with -Duselongdouble. Requiring
147 the latest version of Event because I don't know which release
148 changed this (it's not mentioned in the ChangeLog).
149 - allow xs level enterleave hooks via CoroAPI.
150
1516.43 Thu Jun 4 15:38:14 CEST 2015
152 - use stability canary.
153 - port to stableperl-5.22.0-1.001.
154 - update libecb.
155
1566.42 Wed Feb 11 20:29:52 CET 2015
157 - Coro::SemaphoreSet->try did not actually work (analyzed by
158 SATO Kentaro).
159 - upgrade libecb to be C11 compliant.
160
1616.41 Sat Sep 6 22:08:46 CEST 2014
162 - restore portability to perl 5.8.x.
163 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
164 up some memory, but fixes "use feature" and similar modules
165 when used inside a Coro.
166 - allow zero as argument to Coro::Channel to mean the same thing
167 as no argument. this works with older versions as well,
168 but wasn't legal until now.
169 - slightly better c header file detection.
170
1716.39 Mon Jun 2 00:00:08 CEST 2014
172 - work around more incompatible changes in 5.20.
173
1746.38 Sun Jun 1 21:54:23 CEST 2014
175 - check that perl slots actually have enough space to hold
176 interpreter variables.
177 - untested port to perl 5.19 (64 bit tmps indices) (reported
178 by Andreas König).
179 - croak when cancel is called without a thread context.
180
1816.37 Tue Mar 4 13:27:33 CET 2014
182 - *sigh*, removed leftover debugging code from debugging a
183 perl bug, of all things.
184
1856.36 Tue Mar 4 07:11:59 CET 2014
186 - semaphores would not clear the destroy hook when interrupted
187 by ->throw, causing segfaults or worse.
188 - ->throw on a thread waiting for a semaphore did not acquire
189 the semaphore, but also didn't wake up other waiters,
190 possibly causing a deadlock.
191 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
192 to report a full stacktrace, which should help find out
193 where the actual call is.
194 - "atomically" destroy data in slf_destroy, because it is
195 the right thing to do, just in case.
196 - disable ecb.h libm dependency, to compile on ancient systems
197 or under adverse conditions.
198
1996.33 Mon Nov 18 11:26:27 CET 2013
200 - do not crash when freeing padlists with holes (in 5.18).
201 - tentative SVt_BIND 5.19 port/fix.
8 202
96.32 Tue Nov 5 15:35:35 CET 2013 2036.32 Tue Nov 5 15:35:35 CET 2013
10 - use a new algorithm to derive padlists for perl 5.18. The old 204 - use a new algorithm to derive padlists for perl 5.18. The old
11 one could lead to 0-pointer accesses inside perl (reported 205 one could lead to 0-pointer accesses inside perl (reported
12 by Darin McBride). 206 by Darin McBride).
… …
108 handle and barfed. now it's just a bit slower on gentoo and similar 302 handle and barfed. now it's just a bit slower on gentoo and similar
109 systems. 303 systems.
110 304
1116.01 Sun Jul 3 12:31:14 CEST 2011 3056.01 Sun Jul 3 12:31:14 CEST 2011
112 - workarounds are good, but the test for whether pthreads are used 306 - workarounds are good, but the test for whether pthreads are used
113 was not good. thisone should be better. 307 was not good. this one should be better.
114 - check differently whether gcc generates cfi instructions itself. 308 - check differently whether gcc generates cfi instructions itself.
115 309
1166.0 Wed Jun 29 19:43:35 CEST 2011 3106.0 Wed Jun 29 19:43:35 CEST 2011
117 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be 311 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
118 destroyed and cleaned up automatically (e.g. async { schedule }). 312 destroyed and cleaned up automatically (e.g. async { schedule }).
119 - implement a JIT compiler for part of the thread switch code, 313 - implement a JIT compiler for part of the thread switch code,
120 which gives a 50% speed improvement on threaded perls, and 314 which gives a 50% speed improvement on threaded perls, and
121 about 4% on non-thraeded perls (so threaded perls now finally 315 about 4% on non-threaded perls (so threaded perls now finally
122 reach about half the speed of non-threaded perls). 316 reach about half the speed of non-threaded perls).
123 - slightly modernise Coro::Intro, add section about rouse functions. 317 - slightly modernise Coro::Intro, add section about rouse functions.
124 - avoid DEFSV and ERRSV, giving another 10% improvement 318 - avoid DEFSV and ERRSV, giving another 10% improvement
125 in thread switching. 319 in thread switching.
126 - Coro::State->is_destroyed is now called is_zombie. 320 - Coro::State->is_destroyed is now called is_zombie.

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