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Generic pooling library for creating connection pools
Ruby
branch: master

1.4.1

latest commit 399a097adb
@bpardee authored

README.md

gene_pool

DESCRIPTION:

Generic pooling library for connection pools.

FEATURES/PROBLEMS:

  • Thread-safe
  • Pure ruby

INSTALL:

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 reopen socket and perform retry
      @@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.

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