Class: Wurk::Cron::LoopSet

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/wurk/cron.rb

Overview

Enumerable view of every registered loop. Reads periodic SET + loops:{lid} HASH on each iteration — cheap because the dashboard's list view is the only hot caller.

Instance Method Summary collapse

Constructor Details

#initialize(config = nil) ⇒ LoopSet

config scopes Redis to that config's per-fork pool — the leader poller runs inside a swarm child and must not reach for the parent-inherited global socket. Dashboard/CLI callers pass nothing and get Wurk.redis.



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# File 'lib/wurk/cron.rb', line 606

def initialize(config = nil)
  @config = config
end

Instance Method Details

#each ⇒ Object

Loops are read up front and yielded with no connection held, so the caller's own Redis work (the poller's claim + push) never nests a second checkout. A loop whose stored hash no longer parses is skipped with a warning: one corrupt record must not hide every loop after it.



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# File 'lib/wurk/cron.rb', line 614

def each
  return enum_for(:each) unless block_given?

  read_rows.each do |lid, h|
    loop_obj = parse(lid, h)
    yield loop_obj if loop_obj
  end
end

#fetch(lid) ⇒ Object 



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# File 'lib/wurk/cron.rb', line 627

def fetch(lid)
  h = redis { |c| c.call('HGETALL', "#{LOOP_PREFIX}#{lid}") }
  return nil if h.nil? || h.empty?

  h = h.each_slice(2).to_h if h.is_a?(Array)
  return nil if h.empty?

  Loop.from_redis(lid, h)
end

#size ⇒ Object 



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# File 'lib/wurk/cron.rb', line 623

def size
  redis { |c| c.call('SCARD', PERIODIC_KEY).to_i }
end