Class: MutexMigrations::Semaphore

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/mutex_migrations/semaphore.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Semaphore

Returns a new instance of Semaphore.



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# File 'lib/mutex_migrations/semaphore.rb', line 7

def initialize
  @mutex = Mutex.new
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/mutex_migrations/semaphore.rb', line 11

def call
  return unless block_given?

  @mutex.synchronize do
    yield
  end
end

#lock ⇒ Object 



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# File 'lib/mutex_migrations/semaphore.rb', line 19

def lock
  @mutex.try_lock
end

#locked? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mutex_migrations/semaphore.rb', line 23

def locked?
  @mutex.locked?
end

#unlock ⇒ Object 



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# File 'lib/mutex_migrations/semaphore.rb', line 27

def unlock
  @mutex.unlock
end