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Size: 1.18 KB
Versions: 14
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Stored size: 1.18 KB
Contents
# frozen_string_literal: true
module Appsignal
# @api private
module Rack
APPSIGNAL_TRANSACTION = "appsignal.transaction"
APPSIGNAL_EVENT_HANDLER_ID = "appsignal.event_handler_id"
APPSIGNAL_EVENT_HANDLER_HAS_ERROR = "appsignal.event_handler.error"
APPSIGNAL_RESPONSE_INSTRUMENTED = "appsignal.response_instrumentation_active"
RACK_AFTER_REPLY = "rack.after_reply"
class Utils
# Fetch the queue start time from the request environment.
#
# @since 3.11.0
# @param env [Hash] Request environment hash.
# @return [Integer, NilClass]
def self.queue_start_from(env)
return unless env
env_var = env["HTTP_X_QUEUE_START"] || env["HTTP_X_REQUEST_START"]
return unless env_var
cleaned_value = env_var.tr("^0-9", "")
return if cleaned_value.empty?
value = cleaned_value.to_i
if value > 4_102_441_200_000
# Value is in microseconds. Transform to milliseconds.
value / 1_000
elsif value < 946_681_200_000
# Value is too low to be plausible
nil
else
# Value is in milliseconds
value
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems