Class: Concurrent::MutexAtomic

Inherits:
Object
  • Object
show all
Defined in:
lib/concurrent/atomic/atomic.rb

Direct Known Subclasses

Atomic

Instance Method Summary collapse

Constructor Details

#initialize(init = nil) ⇒ MutexAtomic

Returns a new instance of MutexAtomic.



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# File 'lib/concurrent/atomic/atomic.rb', line 5

def initialize(init = nil)
  @value = init
  @mutex = Mutex.new
end

Instance Method Details

#compare_and_set(expect, update) ⇒ Object 



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# File 'lib/concurrent/atomic/atomic.rb', line 32

def compare_and_set(expect, update)
  @mutex.lock
  if @value == expect
    @value = update
    true
  else
    false
  end
ensure
  @mutex.unlock
end

#modify ⇒ Object 



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# File 'lib/concurrent/atomic/atomic.rb', line 24

def modify
  @mutex.lock
  result = yield @value
  @value = result
ensure
  @mutex.unlock
end

#value ⇒ Object 



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# File 'lib/concurrent/atomic/atomic.rb', line 10

def value
  @mutex.lock
  @value
ensure
  @mutex.unlock
end

#value=(value) ⇒ Object 



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# File 'lib/concurrent/atomic/atomic.rb', line 17

def value=(value)
  @mutex.lock
  @value = value
ensure
  @mutex.unlock
end