… | |
… | |
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 = '3.7'; |
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 | ); |
… | |
… | |
227 | |
227 | |
228 | 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 |
229 | 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 |
230 | { terminate }> once per second or so to slowly replenish the pool. In |
230 | { terminate }> once per second or so to slowly replenish the pool. In |
231 | addition to that, when the stacks used by a handler grows larger than 16kb |
231 | addition to that, when the stacks used by a handler grows larger than 16kb |
232 | (adjustable with $Coro::MAX_POOL_RSS) it will also exit. |
232 | (adjustable with $Coro::POOL_RSS) it will also exit. |
233 | |
233 | |
234 | =cut |
234 | =cut |
235 | |
235 | |
236 | our $POOL_SIZE = 8; |
236 | our $POOL_SIZE = 8; |
237 | our $MAX_POOL_RSS = 16 * 1024; |
237 | our $POOL_RSS = 16 * 1024; |
238 | our @pool; |
238 | our @async_pool; |
239 | |
239 | |
240 | sub pool_handler { |
240 | sub pool_handler { |
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241 | my $cb; |
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242 | |
241 | while () { |
243 | while () { |
242 | $current->{desc} = "[async_pool]"; |
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243 | |
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244 | eval { |
244 | eval { |
245 | my ($cb, @arg) = @{ delete $current->{_invoke} or return }; |
245 | while () { |
246 | $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 | } |
247 | }; |
251 | }; |
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252 | |
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253 | last if $@ eq "\3terminate\2\n"; |
248 | warn $@ if $@; |
254 | warn $@ if $@; |
249 | |
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250 | last if @pool >= $POOL_SIZE || $current->rss >= $MAX_POOL_RSS; |
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251 | |
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252 | push @pool, $current; |
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253 | $current->{desc} = "[async_pool idle]"; |
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254 | $current->save (Coro::State::SAVE_DEF); |
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255 | $current->prio (0); |
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256 | schedule; |
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257 | } |
255 | } |
258 | } |
256 | } |
259 | |
257 | |
260 | sub async_pool(&@) { |
258 | sub async_pool(&@) { |
261 | # this is also inlined into the unlock_scheduler |
259 | # this is also inlined into the unlock_scheduler |
262 | my $coro = (pop @pool) || new Coro \&pool_handler;; |
260 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
263 | |
261 | |
264 | $coro->{_invoke} = [@_]; |
262 | $coro->{_invoke} = [@_]; |
265 | $coro->ready; |
263 | $coro->ready; |
266 | |
264 | |
267 | $coro |
265 | $coro |
… | |
… | |
537 | # inside an event callback. |
535 | # inside an event callback. |
538 | our $unblock_scheduler = new Coro sub { |
536 | our $unblock_scheduler = new Coro sub { |
539 | while () { |
537 | while () { |
540 | while (my $cb = pop @unblock_queue) { |
538 | while (my $cb = pop @unblock_queue) { |
541 | # this is an inlined copy of async_pool |
539 | # this is an inlined copy of async_pool |
542 | my $coro = (pop @pool or new Coro \&pool_handler); |
540 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
543 | |
541 | |
544 | $coro->{_invoke} = $cb; |
542 | $coro->{_invoke} = $cb; |
545 | $coro->ready; |
543 | $coro->ready; |
546 | 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 |
547 | } |
545 | } |