… | |
… | |
50 | |
50 | |
51 | our $idle; # idle handler |
51 | our $idle; # idle handler |
52 | our $main; # main coroutine |
52 | our $main; # main coroutine |
53 | our $current; # current coroutine |
53 | our $current; # current coroutine |
54 | |
54 | |
55 | our $VERSION = '3.61'; |
55 | our $VERSION = '3.8'; |
56 | |
56 | |
57 | our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); |
57 | our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub); |
58 | our %EXPORT_TAGS = ( |
58 | our %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 | ); |
… | |
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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; |
… | |
… | |
166 | while @destroy; |
168 | while @destroy; |
167 | |
169 | |
168 | &schedule; |
170 | &schedule; |
169 | } |
171 | } |
170 | }; |
172 | }; |
171 | |
173 | $manager->desc ("[coro manager]"); |
172 | $manager->prio (PRIO_MAX); |
174 | $manager->prio (PRIO_MAX); |
173 | |
175 | |
174 | # static methods. not really. |
176 | # static methods. not really. |
175 | |
177 | |
176 | =back |
178 | =back |
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222 | The pool size is limited to 8 idle coroutines (this can be adjusted by |
224 | The pool size is limited to 8 idle coroutines (this can be adjusted by |
223 | changing $Coro::POOL_SIZE), and there can be as many non-idle coros as |
225 | changing $Coro::POOL_SIZE), and there can be as many non-idle coros as |
224 | required. |
226 | required. |
225 | |
227 | |
226 | If you are concerned about pooled coroutines growing a lot because a |
228 | If you are concerned about pooled coroutines growing a lot because a |
227 | single C<async_pool> used a lot of stackspace you can e.g. C<async_pool { |
229 | single C<async_pool> used a lot of stackspace you can e.g. C<async_pool |
228 | terminate }> once per second or so to slowly replenish the pool. |
230 | { terminate }> once per second or so to slowly replenish the pool. In |
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231 | addition to that, when the stacks used by a handler grows larger than 16kb |
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232 | (adjustable with $Coro::POOL_RSS) it will also exit. |
229 | |
233 | |
230 | =cut |
234 | =cut |
231 | |
235 | |
232 | our $POOL_SIZE = 8; |
236 | our $POOL_SIZE = 8; |
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237 | our $POOL_RSS = 16 * 1024; |
233 | our @pool; |
238 | our @async_pool; |
234 | |
239 | |
235 | sub pool_handler { |
240 | sub pool_handler { |
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241 | my $cb; |
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242 | |
236 | while () { |
243 | while () { |
237 | eval { |
244 | eval { |
238 | my ($cb, @arg) = @{ delete $current->{_invoke} or return }; |
245 | while () { |
239 | $cb->(@arg); |
246 | _pool_1 $cb; |
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247 | &$cb; |
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248 | _pool_2 $cb; |
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249 | &schedule; |
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250 | } |
240 | }; |
251 | }; |
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252 | |
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253 | last if $@ eq "\3terminate\2\n"; |
241 | warn $@ if $@; |
254 | warn $@ if $@; |
242 | |
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243 | last if @pool >= $POOL_SIZE; |
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244 | push @pool, $current; |
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245 | |
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246 | $current->save (Coro::State::SAVE_DEF); |
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247 | $current->prio (0); |
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248 | schedule; |
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249 | } |
255 | } |
250 | } |
256 | } |
251 | |
257 | |
252 | sub async_pool(&@) { |
258 | sub async_pool(&@) { |
253 | # this is also inlined into the unlock_scheduler |
259 | # this is also inlined into the unlock_scheduler |
254 | my $coro = (pop @pool or new Coro \&pool_handler); |
260 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
255 | |
261 | |
256 | $coro->{_invoke} = [@_]; |
262 | $coro->{_invoke} = [@_]; |
257 | $coro->ready; |
263 | $coro->ready; |
258 | |
264 | |
259 | $coro |
265 | $coro |
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525 | |
531 | |
526 | # we create a special coro because we want to cede, |
532 | # we create a special coro because we want to cede, |
527 | # to reduce pressure on the coro pool (because most callbacks |
533 | # to reduce pressure on the coro pool (because most callbacks |
528 | # return immediately and can be reused) and because we cannot cede |
534 | # return immediately and can be reused) and because we cannot cede |
529 | # inside an event callback. |
535 | # inside an event callback. |
530 | our $unblock_scheduler = async { |
536 | our $unblock_scheduler = new Coro sub { |
531 | while () { |
537 | while () { |
532 | while (my $cb = pop @unblock_queue) { |
538 | while (my $cb = pop @unblock_queue) { |
533 | # this is an inlined copy of async_pool |
539 | # this is an inlined copy of async_pool |
534 | my $coro = (pop @pool or new Coro \&pool_handler); |
540 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
535 | |
541 | |
536 | $coro->{_invoke} = $cb; |
542 | $coro->{_invoke} = $cb; |
537 | $coro->ready; |
543 | $coro->ready; |
538 | 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 |
539 | } |
545 | } |
540 | schedule; # sleep well |
546 | schedule; # sleep well |
541 | } |
547 | } |
542 | }; |
548 | }; |
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549 | $unblock_scheduler->desc ("[unblock_sub scheduler]"); |
543 | |
550 | |
544 | sub unblock_sub(&) { |
551 | sub unblock_sub(&) { |
545 | my $cb = shift; |
552 | my $cb = shift; |
546 | |
553 | |
547 | sub { |
554 | sub { |