Class: ConditionalWait
Defined Under Namespace
Classes: TimeoutError
Class Method Summary
collapse
Instance Method Summary
collapse
#bind_thread, included, #target_thread, #target_thread?, #thread_check
Constructor Details
Returns a new instance of ConditionalWait.
459
460
461
462
463
464
465
466
467
|
# File 'lib/wakame/util.rb', line 459
def initialize(&blk)
bind_thread
@wait_queue = ::Queue.new
@wait_tickets = []
@poll_threads = []
@event_tickets = []
blk.call(self) if blk
end
|
Class Method Details
.wait(timeout = 60*30, &blk) ⇒ Object
559
560
561
562
563
564
565
566
567
|
# File 'lib/wakame/util.rb', line 559
def self.wait(timeout=60*30, &blk)
cond = ConditionalWait.new
cond.bind_thread(Thread.current)
blk.call(cond)
cond.wait(timeout)
end
|
Instance Method Details
#poll(period = 5, max_retry = 10, &blk) ⇒ Object
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
|
# File 'lib/wakame/util.rb', line 469
def poll( period=5, max_retry=10, &blk)
wticket = Wakame::Util.gen_id
@poll_threads << Thread.new {
retry_count = 0
begin
catch(:finish) {
while retry_count < max_retry
start_at = Time.now
if blk.call == true
throw :finish
end
Thread.pass
if period > 0
t = Time.now - start_at
sleep (period - t) if period > t
end
retry_count += 1
end
}
if retry_count >= max_retry
Wakame.log.error('Over retry count')
raise 'Over retry count'
end
rescue => e
Wakame.log.error(e)
@wait_queue << [false, wticket, e]
else
@wait_queue << [true, wticket]
end
}
@poll_threads.last[:name]="#{self.class} poll"
@wait_tickets << wticket
end
|
#wait(tout = nil) ⇒ Object
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
|
# File 'lib/wakame/util.rb', line 529
def wait(tout=nil)
unless @wait_tickets.empty?
Wakame.log.debug("#{self.class} waits for #{@wait_tickets.size} num of event(s)/polling(s).")
timeout(tout, TimeoutError) {
while @wait_tickets.size > 0 && q = @wait_queue.shift
@wait_tickets.delete(q[1])
unless q[0]
Wakame.log.debug("#{q[1]} failed with #{q[2]}")
raise q[2]
end
end
}
end
ensure
@poll_threads.each { |t|
begin
t.kill
rescue => e
Wakame.log.error(e)
end
}
@event_tickets.each { |t| Wakame::EventDispatcher.unsubscribe(t) }
end
|
#wait_event(event_class, &blk) ⇒ Object
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
|
# File 'lib/wakame/util.rb', line 508
def wait_event(event_class, &blk)
wticket = Wakame::Util.gen_id
Wakame.log.debug("#{self.class} called wait_event(#{event_class}) on thread #{Thread.current} (target_thread=#{self.target_thread?}). has_blk=#{blk}")
ticket = Wakame::EventDispatcher.subscribe(event_class) { |event|
begin
if blk.call(event) == true
Wakame::EventDispatcher.unsubscribe(ticket)
@wait_queue << [true, wticket]
end
rescue => e
Wakame.log.error(e)
Wakame::EventDispatcher.unsubscribe(ticket)
@wait_queue << [false, wticket, e]
end
}
@event_tickets << ticket
@wait_tickets << wticket
end
|