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# frozen_string_literal: true
module Dalli
module Protocol
class Binary
##
# Class that encapsulates data parsed from a memcached response header.
##
class ResponseHeader
SIZE = 24
FMT = '@2nCCnNNQ'
attr_reader :key_len, :extra_len, :data_type, :status, :body_len, :opaque, :cas
def initialize(buf)
raise ArgumentError, "Response buffer must be at least #{SIZE} bytes" unless buf.bytesize >= SIZE
@key_len, @extra_len, @data_type, @status, @body_len, @opaque, @cas = buf.unpack(FMT)
end
def ok?
status.zero?
end
def not_found?
status == 1
end
NOT_STORED_STATUSES = [2, 5].freeze
def not_stored?
NOT_STORED_STATUSES.include?(status)
end
end
end
end
end
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