class Pool(T)

• Pool(T)
• Reference
• Object

Overview

A simple thread-safe generic pool.

A pool can be used to store resources that are expensive to create (like connections). See here) for more explanations.

require "pool"

pool = Pool.new { IO::Memory.new }
pool.get do |resource|
  # do something
end

Defined in:

Constructors

• .new(initial_capacity : Int = 0, &block : -> T)

  Creates a new Pool.

Instance Method Summary

• #add(resource : T) : Nil

  Adds a resource.

• #get : T

  Gets a resource.

• #get(& : T -> ) : Nil

  Gets an resource, yields, then adds it back.

• #idle_size : Int32

  Returns the pool's idle size.

• #resize(new_size : Int32, & : T -> ) : Nil

  Resizes the pool to match the new #total_size, and yields each deleted resource on size shrinking.

• #resize(new_size : Int32) : Nil

  Resizes the pool to match the new size

• #total_size : Int32

  Returns the pool's total size.

• #used_size : Int32

  Returns the pool's used resources size.

Constructor Detail

require "pool"

Pool.new { IO::Memory.new }

Instance Method Detail