Project

gene_pool

0.25
No commit activity in last 3 years
No release in over 3 years
Threadsafe, performant library for managing pools of resources, such as connections.
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Dependencies

Runtime

 Project Readme

gene_pool

Description:

Highly performant Ruby connection pooling library.

Features:

  • Thread-safe
  • Pure ruby

Installation:

gem install gene_pool

Example Usage:

class MyClient
  # Print a logger warning if it requires more than 0.25 seconds to acquire a connection.
  # Close and reopen the connection if it hasn't been used for 10 seconds.
  # Raise Timeout::Error if waiting for a connection more than 3 seconds.
  @gene_pool = GenePool.new(
    name:         'MyClient',
    pool_size:    10,
    timeout:      3,
    warn_timeout: 0.25,
    idle_timeout: 10,
    logger:       Rails.logger,
    close_proc:   :close) do
    
    TCPSocket.new('myserver', 4321)
  end

  def send_message
    @gene_pool.with_connection do |socket|
      begin
        # use socket here
      rescue Exception => e
        # If the socket gets closed, remove it from the pool
        @gene_pool.remove(socket)
      end
    end
  end

  # Equivalent to send_message above
  def send_message_auto_remove
    # On exception, close and remeove socket from pool
    @gene_pool.with_connection_auto_remove do |socket|
      # use socket here,
    end
  end

  def send_message_auto_retry
    # On exception, close and reopen socket and perform retry
    @gene_pool.with_connection_auto_retry do |socket|
      # use socket here,
    end
  end
end

Copyright

Copyright (c) 2010-2012 Brad Pardee. See LICENSE for details.