#  Phusion Passenger - https://www.phusionpassenger.com/
#  Copyright (c) 2010-2014 Phusion
#
#  "Phusion Passenger" is a trademark of Hongli Lai & Ninh Bui.
#
#  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.

PhusionPassenger.require_passenger_lib 'native_support'

module PhusionPassenger
module Utils

# Utility functions that can potentially be accelerated by native_support functions.
module NativeSupportUtils
	extend self

	if defined?(PhusionPassenger::NativeSupport)
		# Split the given string into an hash. Keys and values are obtained by splitting the
		# string using the null character as the delimitor.
		def split_by_null_into_hash(data)
			return PhusionPassenger::NativeSupport.split_by_null_into_hash(data)
		end

		# Wrapper for getrusage().
		def process_times
			return PhusionPassenger::NativeSupport.process_times
		end
	else
		NULL = "\0".freeze

		class ProcessTimes < Struct.new(:utime, :stime)
		end

		def split_by_null_into_hash(data)
			args = data.split(NULL, -1)
			args.pop
			return Hash[*args]
		end

		def process_times
			times = Process.times
			return ProcessTimes.new((times.utime * 1_000_000).to_i,
				(times.stime * 1_000_000).to_i)
		end
	end
end

end # module Utils
end # module PhusionPassenger
