Class: Spectator::AtomicNumber

Inherits:
Object
  • Object
show all
Defined in:
lib/spectator/atomic_number.rb

Overview

Thread safe number operations

Instance Method Summary collapse

Constructor Details

#initialize(init) ⇒ AtomicNumber

Returns a new instance of AtomicNumber.



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# File 'lib/spectator/atomic_number.rb', line 4

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

Instance Method Details

#add_and_get(amount) ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 33

def add_and_get(amount)
  @lock.synchronize { @value += amount }
end

#get ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 13

def get
  @lock.synchronize { @value }
end

#get_and_add(amount) ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 25

def get_and_add(amount)
  @lock.synchronize do
    tmp = @value
    @value += amount
    tmp
  end
end

#get_and_set(value) ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 17

def get_and_set(value)
  @lock.synchronize do
    tmp = @value
    @value = value
    tmp
  end
end

#max(value) ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 37

def max(value)
  v = value.to_f
  @lock.synchronize do
    @value = v if v > @value || @value.nan?
  end
  @value
end

#set(value) ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 9

def set(value)
  @lock.synchronize { @value = value }
end

#to_s ⇒ Object 



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# File 'lib/spectator/atomic_number.rb', line 45

def to_s
  "AtomicNumber{#{@value}}"
end