| … | |
… | |
| 113 | reasons. If performance is not essential you are encouraged to use the |
113 | reasons. If performance is not essential you are encouraged to use the |
| 114 | C<Coro::current> function instead. |
114 | C<Coro::current> function instead. |
| 115 | |
115 | |
| 116 | =cut |
116 | =cut |
| 117 | |
117 | |
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|
118 | $main->{desc} = "[main::]"; |
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|
119 | |
| 118 | # maybe some other module used Coro::Specific before... |
120 | # maybe some other module used Coro::Specific before... |
| 119 | $main->{specific} = $current->{specific} |
121 | $main->{specific} = $current->{specific} |
| 120 | if $current; |
122 | if $current; |
| 121 | |
123 | |
| 122 | _set_current $main; |
124 | _set_current $main; |
| … | |
… | |
| 159 | # cannot destroy itself. |
161 | # cannot destroy itself. |
| 160 | my @destroy; |
162 | my @destroy; |
| 161 | my $manager; |
163 | my $manager; |
| 162 | |
164 | |
| 163 | $manager = new Coro sub { |
165 | $manager = new Coro sub { |
| 164 | $current->desc ("[coro manager]"); |
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|
| 165 | |
|
|
| 166 | while () { |
166 | while () { |
| 167 | (shift @destroy)->_cancel |
167 | (shift @destroy)->_cancel |
| 168 | while @destroy; |
168 | while @destroy; |
| 169 | |
169 | |
| 170 | &schedule; |
170 | &schedule; |
| 171 | } |
171 | } |
| 172 | }; |
172 | }; |
| 173 | |
173 | $manager->desc ("[coro manager]"); |
| 174 | $manager->prio (PRIO_MAX); |
174 | $manager->prio (PRIO_MAX); |
| 175 | |
175 | |
| 176 | # static methods. not really. |
176 | # static methods. not really. |
| 177 | |
177 | |
| 178 | =back |
178 | =back |
| … | |
… | |
| 230 | terminate }> once per second or so to slowly replenish the pool. |
230 | terminate }> once per second or so to slowly replenish the pool. |
| 231 | |
231 | |
| 232 | =cut |
232 | =cut |
| 233 | |
233 | |
| 234 | our $POOL_SIZE = 8; |
234 | our $POOL_SIZE = 8; |
|
|
235 | our $MAX_POOL_RSS = 64 * 1024; |
| 235 | our @pool; |
236 | our @pool; |
| 236 | |
237 | |
| 237 | sub pool_handler { |
238 | sub pool_handler { |
| 238 | while () { |
239 | while () { |
| 239 | $current->{desc} = "[async_pool]"; |
240 | $current->{desc} = "[async_pool]"; |
| … | |
… | |
| 242 | my ($cb, @arg) = @{ delete $current->{_invoke} or return }; |
243 | my ($cb, @arg) = @{ delete $current->{_invoke} or return }; |
| 243 | $cb->(@arg); |
244 | $cb->(@arg); |
| 244 | }; |
245 | }; |
| 245 | warn $@ if $@; |
246 | warn $@ if $@; |
| 246 | |
247 | |
| 247 | last if @pool >= $POOL_SIZE; |
248 | last if @pool >= $POOL_SIZE || $current->rss >= $MAX_POOL_RSS; |
| 248 | |
249 | |
| 249 | push @pool, $current; |
250 | push @pool, $current; |
| 250 | $current->{desc} = "[async_pool idle]"; |
251 | $current->{desc} = "[async_pool idle]"; |
| 251 | $current->save (Coro::State::SAVE_DEF); |
252 | $current->save (Coro::State::SAVE_DEF); |
| 252 | $current->prio (0); |
253 | $current->prio (0); |
| … | |
… | |
| 530 | |
531 | |
| 531 | # we create a special coro because we want to cede, |
532 | # we create a special coro because we want to cede, |
| 532 | # to reduce pressure on the coro pool (because most callbacks |
533 | # to reduce pressure on the coro pool (because most callbacks |
| 533 | # return immediately and can be reused) and because we cannot cede |
534 | # return immediately and can be reused) and because we cannot cede |
| 534 | # inside an event callback. |
535 | # inside an event callback. |
| 535 | our $unblock_scheduler = async { |
536 | our $unblock_scheduler = new Coro sub { |
| 536 | $current->desc ("[unblock_sub scheduler]"); |
|
|
| 537 | while () { |
537 | while () { |
| 538 | while (my $cb = pop @unblock_queue) { |
538 | while (my $cb = pop @unblock_queue) { |
| 539 | # this is an inlined copy of async_pool |
539 | # this is an inlined copy of async_pool |
| 540 | my $coro = (pop @pool or new Coro \&pool_handler); |
540 | my $coro = (pop @pool or new Coro \&pool_handler); |
| 541 | |
541 | |
| … | |
… | |
| 544 | cede; # for short-lived callbacks, this reduces pressure on the coro pool |
544 | cede; # for short-lived callbacks, this reduces pressure on the coro pool |
| 545 | } |
545 | } |
| 546 | schedule; # sleep well |
546 | schedule; # sleep well |
| 547 | } |
547 | } |
| 548 | }; |
548 | }; |
|
|
549 | $unblock_scheduler->desc ("[unblock_sub scheduler]"); |
| 549 | |
550 | |
| 550 | sub unblock_sub(&) { |
551 | sub unblock_sub(&) { |
| 551 | my $cb = shift; |
552 | my $cb = shift; |
| 552 | |
553 | |
| 553 | sub { |
554 | sub { |
