/usr/lib/ruby/vendor_ruby/amqp/utilities/server_type.rb is in ruby-amqp 0.9.5-2.
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# Original version is from Qusion project by Daniel DeLeo.
#
# Copyright (c) 2009 Daniel DeLeo
# Copyright (c) 2011 Michael Klishin
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
module AMQP
module Utilities
# A helper that detects Web server that may be running (if any). Partially derived
# from Qusion project by Daniel DeLeo.
class ServerType
# Return a symbol representing Web server that is running (if any).
#
# Possible values are:
#
# * :thin for Thin
# * :unicorn for Unicorn
# * :passenger for Passenger (Apache mod_rack)
# * :goliath for PostRank's Goliath
# * :evented_mongrel for Swiftiply's Evented Mongrel
# * :mongrel for Mongrel
# * :scgi for SCGI
# * :webrick for WEBrick
# * nil: none of the above (the case for non-Web application, for example)
#
# @return [Symbol]
def self.detect
if defined?(::PhusionPassenger)
:passenger
elsif defined?(::Unicorn)
:unicorn
elsif defined?(::Thin)
:thin
elsif defined?(::Goliath)
:goliath
elsif defined?(::Mongrel) && defined?(::Mongrel::MongrelProtocol)
:evented_mongrel
elsif defined?(::Mongrel)
:mongrel
elsif defined?(::SCGI)
:scgi
elsif defined?(::WEBrick)
:webrick
else
nil
end # if
end # self.detect
end # ServerType
end # Utilities
end # AMQP
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