Class: Supervision::Counter

Inherits:

Object

• Object
• Supervision::Counter

Defined in:

lib/supervision/counter.rb

Overview

A class responsible for measuring increments/decrements of value

Instance Method Summary

• #clear ⇒ nil

  Reset the counter.

• #decrement(decr = 1) ⇒ nil

  Decrement counter.

• #increment(incr = 1) ⇒ nil

  Increment counter.

• #initialize ⇒ Counter constructor

  Create a Counter.

• #value ⇒ Object

  Return the value.

Constructor Details

#initialize ⇒ Counter

Create a Counter

# File 'lib/supervision/counter.rb', line 9

def initialize
  @count = Atomic.new(0)
end

Instance Method Details

#clear ⇒ nil

Reset the counter

Returns:

• (nil)

# File 'lib/supervision/counter.rb', line 18

def clear
  @count.set(0)
end

#decrement(decr = 1) ⇒ nil

Decrement counter

Parameters:

• []

Returns:

• (nil)

# File 'lib/supervision/counter.rb', line 38

def decrement(decr = 1)
  @count.update { |v| v + decr }
end

#increment(incr = 1) ⇒ nil

Increment counter

Returns:

• (nil)

# File 'lib/supervision/counter.rb', line 27

def increment(incr = 1)
  @count.update { |v| v + incr }
end

#value ⇒ Object

Return the value

# File 'lib/supervision/counter.rb', line 45

def value
  @count.value
end