Class: Sidekiq::LimitFetch::Local::Semaphore

Inherits:
Object
  • Object
show all
Defined in:
lib/sidekiq/limit_fetch/local/semaphore.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Semaphore

Returns a new instance of Semaphore.



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 5

def initialize(name)
  @name = name
  @lock = Mutex.new
  @busy = 0
  @paused = false
end

Instance Attribute Details

#busy ⇒ Object (readonly)

Returns the value of attribute busy.



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 3

def busy
  @busy
end

#limit ⇒ Object

Returns the value of attribute limit.



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 3

def limit
  @limit
end

Instance Method Details

#acquire ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 18

def acquire
  return if @paused
  @lock.synchronize do
    @busy += 1 if not @limit or @limit > @busy
  end
end

#block ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 43

def block
  @block = true
end

#blocking? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 51

def blocking?
  @block
end

#pause ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 31

def pause
  @paused = true
end

#paused? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 39

def paused?
  @paused
end

#release ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 25

def release
  @lock.synchronize do
    @busy -= 1
  end
end

#unblock ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 47

def unblock
  @block = false
end

#unpause ⇒ Object 



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# File 'lib/sidekiq/limit_fetch/local/semaphore.rb', line 35

def unpause
  @paused = false
end