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Comparing Coro/Coro.pm (file contents):
Revision 1.105 by root, Fri Jan 5 16:55:01 2007 UTC vs.
Revision 1.113 by root, Tue Jan 23 15:55:45 2007 UTC

… …
50 50
51our $idle; # idle handler 51our $idle; # idle handler
52our $main; # main coroutine 52our $main; # main coroutine
53our $current; # current coroutine 53our $current; # current coroutine
54 54
55our $VERSION = '3.3'; 55our $VERSION = '3.42';
56 56
57our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); 57our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub);
58our %EXPORT_TAGS = ( 58our %EXPORT_TAGS = (
59 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)], 59 prio => [qw(PRIO_MAX PRIO_HIGH PRIO_NORMAL PRIO_LOW PRIO_IDLE PRIO_MIN)],
60); 60);
… …
210Similar to C<async>, but uses a coroutine pool, so you should not call 210Similar to C<async>, but uses a coroutine pool, so you should not call
211terminate or join (although you are allowed to), and you get a coroutine 211terminate or join (although you are allowed to), and you get a coroutine
212that might have executed other code already (which can be good or bad :). 212that might have executed other code already (which can be good or bad :).
213 213
214Also, the block is executed in an C<eval> context and a warning will be 214Also, the block is executed in an C<eval> context and a warning will be
215issued in case of an exception instead of terminating the program, as C<async> does. 215issued in case of an exception instead of terminating the program, as
216C<async> does. As the coroutine is being reused, stuff like C<on_destroy>
217will not work in the expected way, unless you call terminate or cancel,
218which somehow defeats the purpose of pooling.
216 219
217The priority will be reset to C<0> after each job, otherwise the coroutine 220The priority will be reset to C<0> after each job, otherwise the coroutine
218will be re-used "as-is". 221will be re-used "as-is".
219 222
220The pool size is limited to 8 idle coroutines (this can be adjusted by 223The pool size is limited to 8 idle coroutines (this can be adjusted by
… …
230our $POOL_SIZE = 8; 233our $POOL_SIZE = 8;
231our @pool; 234our @pool;
232 235
233sub pool_handler { 236sub pool_handler {
234 while () { 237 while () {
235 my ($cb, @arg) = @{ delete $current->{_invoke} };
236
237 eval { 238 eval {
239 my ($cb, @arg) = @{ delete $current->{_invoke} or return };
238 $cb->(@arg); 240 $cb->(@arg);
239 }; 241 };
240 warn $@ if $@; 242 warn $@ if $@;
241 243
242 last if @pool >= $POOL_SIZE; 244 last if @pool >= $POOL_SIZE;
243 push @pool, $current; 245 push @pool, $current;
244 246
245 $current->prio (0); 247 $current->prio (0);
246 schedule; 248 schedule;
247 } 249 }
248} 250}
249 251
250sub async_pool(&@) { 252sub async_pool(&@) {
251 # this is also inlined into the unlock_scheduler 253 # this is also inlined into the unlock_scheduler
252 my $coro = (pop @pool or new Coro \&pool_handler); 254 my $coro = (pop @pool or new Coro \&pool_handler);
253 255
… …
287 289
288"Cede" to other coroutines. This function puts the current coroutine into the 290"Cede" to other coroutines. This function puts the current coroutine into the
289ready queue and calls C<schedule>, which has the effect of giving up the 291ready queue and calls C<schedule>, which has the effect of giving up the
290current "timeslice" to other coroutines of the same or higher priority. 292current "timeslice" to other coroutines of the same or higher priority.
291 293
294Returns true if at least one coroutine switch has happened.
295
292=item Coro::cede_notself 296=item Coro::cede_notself
293 297
294Works like cede, but is not exported by default and will cede to any 298Works like cede, but is not exported by default and will cede to any
295coroutine, regardless of priority, once. 299coroutine, regardless of priority, once.
300
301Returns true if at least one coroutine switch has happened.
296 302
297=item terminate [arg...] 303=item terminate [arg...]
298 304
299Terminates the current coroutine with the given status values (see L<cancel>). 305Terminates the current coroutine with the given status values (see L<cancel>).
300 306

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