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Contents
module Datadog
# Utils contains low-level utilities, typically to provide pseudo-random trace IDs.
module Utils
STRING_PLACEHOLDER = ''.encode(::Encoding::UTF_8).freeze
# We use a custom random number generator because we want no interference
# with the default one. Using the default prng, we could break code that
# would rely on srand/rand sequences.
# Return a span id
def self.next_id
reset! if was_forked?
@rnd.rand(Datadog::Span::MAX_ID)
end
def self.reset!
@pid = Process.pid
@rnd = Random.new
end
def self.was_forked?
Process.pid != @pid
end
private_class_method :reset!, :was_forked?
reset!
def self.truncate(value, size, omission = '...')
string = value.to_s
return string if string.size <= size
string.slice(0, size - omission.size) + omission
end
def self.utf8_encode(str, options = {})
str = str.to_s
if options[:binary]
# This option is useful for "gracefully" displaying binary data that
# often contains text such as marshalled objects
str.encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '')
elsif str.encoding == ::Encoding::UTF_8
str
else
str.encode(::Encoding::UTF_8)
end
rescue => e
Tracer.log.debug("Error encoding string in UTF-8: #{e}")
options.fetch(:placeholder, STRING_PLACEHOLDER)
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems