… | |
… | |
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 = '4.0'; |
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 | ); |
… | |
… | |
116 | =cut |
116 | =cut |
117 | |
117 | |
118 | $main->{desc} = "[main::]"; |
118 | $main->{desc} = "[main::]"; |
119 | |
119 | |
120 | # maybe some other module used Coro::Specific before... |
120 | # maybe some other module used Coro::Specific before... |
121 | $main->{specific} = $current->{specific} |
121 | $main->{_specific} = $current->{_specific} |
122 | if $current; |
122 | if $current; |
123 | |
123 | |
124 | _set_current $main; |
124 | _set_current $main; |
125 | |
125 | |
126 | sub current() { $current } |
126 | sub current() { $current } |
… | |
… | |
151 | # free coroutine data and mark as destructed |
151 | # free coroutine data and mark as destructed |
152 | $self->_destroy |
152 | $self->_destroy |
153 | or return; |
153 | or return; |
154 | |
154 | |
155 | # call all destruction callbacks |
155 | # call all destruction callbacks |
156 | $_->(@{$self->{status}}) |
156 | $_->(@{$self->{_status}}) |
157 | for @{(delete $self->{destroy_cb}) || []}; |
157 | for @{(delete $self->{_on_destroy}) || []}; |
158 | } |
158 | } |
159 | |
159 | |
160 | # this coroutine is necessary because a coroutine |
160 | # this coroutine is necessary because a coroutine |
161 | # cannot destroy itself. |
161 | # cannot destroy itself. |
162 | my @destroy; |
162 | my @destroy; |
… | |
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186 | =item async { ... } [@args...] |
186 | =item async { ... } [@args...] |
187 | |
187 | |
188 | Create a new asynchronous coroutine and return it's coroutine object |
188 | Create a new asynchronous coroutine and return it's coroutine object |
189 | (usually unused). When the sub returns the new coroutine is automatically |
189 | (usually unused). When the sub returns the new coroutine is automatically |
190 | terminated. |
190 | terminated. |
|
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191 | |
|
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192 | See the C<Coro::State::new> constructor for info about the coroutine |
|
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193 | environment. |
191 | |
194 | |
192 | Calling C<exit> in a coroutine will do the same as calling exit outside |
195 | Calling C<exit> in a coroutine will do the same as calling exit outside |
193 | the coroutine. Likewise, when the coroutine dies, the program will exit, |
196 | the coroutine. Likewise, when the coroutine dies, the program will exit, |
194 | just as it would in the main program. |
197 | just as it would in the main program. |
195 | |
198 | |
… | |
… | |
241 | my $cb; |
244 | my $cb; |
242 | |
245 | |
243 | while () { |
246 | while () { |
244 | eval { |
247 | eval { |
245 | while () { |
248 | while () { |
246 | $cb = &_pool_1 |
249 | _pool_1 $cb; |
247 | or return; |
|
|
248 | |
|
|
249 | &$cb; |
250 | &$cb; |
250 | |
251 | _pool_2 $cb; |
251 | return if &_pool_2; |
|
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252 | |
|
|
253 | undef $cb; |
|
|
254 | schedule; |
252 | &schedule; |
255 | } |
253 | } |
256 | }; |
254 | }; |
257 | |
255 | |
|
|
256 | last if $@ eq "\3terminate\2\n"; |
258 | warn $@ if $@; |
257 | warn $@ if $@; |
259 | } |
258 | } |
260 | } |
259 | } |
261 | |
260 | |
262 | sub async_pool(&@) { |
261 | sub async_pool(&@) { |
263 | # this is also inlined into the unlock_scheduler |
262 | # this is also inlined into the unlock_scheduler |
264 | my $coro = (pop @async_pool) || new Coro \&pool_handler;; |
263 | my $coro = (pop @async_pool) || new Coro \&pool_handler; |
265 | |
264 | |
266 | $coro->{_invoke} = [@_]; |
265 | $coro->{_invoke} = [@_]; |
267 | $coro->ready; |
266 | $coro->ready; |
268 | |
267 | |
269 | $coro |
268 | $coro |
… | |
… | |
312 | |
311 | |
313 | =item terminate [arg...] |
312 | =item terminate [arg...] |
314 | |
313 | |
315 | Terminates the current coroutine with the given status values (see L<cancel>). |
314 | Terminates the current coroutine with the given status values (see L<cancel>). |
316 | |
315 | |
|
|
316 | =item killall |
|
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317 | |
|
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318 | Kills/terminates/cancels all coroutines except the currently running |
|
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319 | one. This is useful after a fork, either in the child or the parent, as |
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320 | usually only one of them should inherit the running coroutines. |
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321 | |
317 | =cut |
322 | =cut |
318 | |
323 | |
319 | sub terminate { |
324 | sub terminate { |
320 | $current->cancel (@_); |
325 | $current->cancel (@_); |
|
|
326 | } |
|
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327 | |
|
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328 | sub killall { |
|
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329 | for (Coro::State::list) { |
|
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330 | $_->cancel |
|
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331 | if $_ != $current && UNIVERSAL::isa $_, "Coro"; |
|
|
332 | } |
321 | } |
333 | } |
322 | |
334 | |
323 | =back |
335 | =back |
324 | |
336 | |
325 | # dynamic methods |
337 | # dynamic methods |
… | |
… | |
335 | Create a new coroutine and return it. When the sub returns the coroutine |
347 | Create a new coroutine and return it. When the sub returns the coroutine |
336 | automatically terminates as if C<terminate> with the returned values were |
348 | automatically terminates as if C<terminate> with the returned values were |
337 | called. To make the coroutine run you must first put it into the ready queue |
349 | called. To make the coroutine run you must first put it into the ready queue |
338 | by calling the ready method. |
350 | by calling the ready method. |
339 | |
351 | |
340 | See C<async> for additional discussion. |
352 | See C<async> and C<Coro::State::new> for additional info about the |
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353 | coroutine environment. |
341 | |
354 | |
342 | =cut |
355 | =cut |
343 | |
356 | |
344 | sub _run_coro { |
357 | sub _run_coro { |
345 | terminate &{+shift}; |
358 | terminate &{+shift}; |
… | |
… | |
369 | |
382 | |
370 | =cut |
383 | =cut |
371 | |
384 | |
372 | sub cancel { |
385 | sub cancel { |
373 | my $self = shift; |
386 | my $self = shift; |
374 | $self->{status} = [@_]; |
387 | $self->{_status} = [@_]; |
375 | |
388 | |
376 | if ($current == $self) { |
389 | if ($current == $self) { |
377 | push @destroy, $self; |
390 | push @destroy, $self; |
378 | $manager->ready; |
391 | $manager->ready; |
379 | &schedule while 1; |
392 | &schedule while 1; |
… | |
… | |
383 | } |
396 | } |
384 | |
397 | |
385 | =item $coroutine->join |
398 | =item $coroutine->join |
386 | |
399 | |
387 | Wait until the coroutine terminates and return any values given to the |
400 | Wait until the coroutine terminates and return any values given to the |
388 | C<terminate> or C<cancel> functions. C<join> can be called multiple times |
401 | C<terminate> or C<cancel> functions. C<join> can be called concurrently |
389 | from multiple coroutine. |
402 | from multiple coroutines. |
390 | |
403 | |
391 | =cut |
404 | =cut |
392 | |
405 | |
393 | sub join { |
406 | sub join { |
394 | my $self = shift; |
407 | my $self = shift; |
395 | |
408 | |
396 | unless ($self->{status}) { |
409 | unless ($self->{_status}) { |
397 | my $current = $current; |
410 | my $current = $current; |
398 | |
411 | |
399 | push @{$self->{destroy_cb}}, sub { |
412 | push @{$self->{_on_destroy}}, sub { |
400 | $current->ready; |
413 | $current->ready; |
401 | undef $current; |
414 | undef $current; |
402 | }; |
415 | }; |
403 | |
416 | |
404 | &schedule while $current; |
417 | &schedule while $current; |
405 | } |
418 | } |
406 | |
419 | |
407 | wantarray ? @{$self->{status}} : $self->{status}[0]; |
420 | wantarray ? @{$self->{_status}} : $self->{_status}[0]; |
408 | } |
421 | } |
409 | |
422 | |
410 | =item $coroutine->on_destroy (\&cb) |
423 | =item $coroutine->on_destroy (\&cb) |
411 | |
424 | |
412 | Registers a callback that is called when this coroutine gets destroyed, |
425 | Registers a callback that is called when this coroutine gets destroyed, |
… | |
… | |
416 | =cut |
429 | =cut |
417 | |
430 | |
418 | sub on_destroy { |
431 | sub on_destroy { |
419 | my ($self, $cb) = @_; |
432 | my ($self, $cb) = @_; |
420 | |
433 | |
421 | push @{ $self->{destroy_cb} }, $cb; |
434 | push @{ $self->{_on_destroy} }, $cb; |
422 | } |
435 | } |
423 | |
436 | |
424 | =item $oldprio = $coroutine->prio ($newprio) |
437 | =item $oldprio = $coroutine->prio ($newprio) |
425 | |
438 | |
426 | Sets (or gets, if the argument is missing) the priority of the |
439 | Sets (or gets, if the argument is missing) the priority of the |
… | |
… | |
450 | |
463 | |
451 | =item $olddesc = $coroutine->desc ($newdesc) |
464 | =item $olddesc = $coroutine->desc ($newdesc) |
452 | |
465 | |
453 | Sets (or gets in case the argument is missing) the description for this |
466 | Sets (or gets in case the argument is missing) the description for this |
454 | coroutine. This is just a free-form string you can associate with a coroutine. |
467 | coroutine. This is just a free-form string you can associate with a coroutine. |
|
|
468 | |
|
|
469 | This method simply sets the C<< $coroutine->{desc} >> member to the given string. You |
|
|
470 | can modify this member directly if you wish. |
455 | |
471 | |
456 | =cut |
472 | =cut |
457 | |
473 | |
458 | sub desc { |
474 | sub desc { |
459 | my $old = $_[0]{desc}; |
475 | my $old = $_[0]{desc}; |