Sha256: 509abacd32c8c06a7eebf3f6ebe65cc2f269ec5c1ecdbf2bb30795ea316bf144
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Stored size: 806 Bytes
Contents
module Appsignal
module Probes
module Helpers
private
def gauge_delta_cache
@gauge_delta_cache ||= {}
end
# Calculate the delta of two values for a gauge metric
#
# First call will store the data for the metric in the cache and the
# second call will return the delta of the gauge metric. This is used for
# absolute counter values which we want to track as gauges.
#
# @example
# gauge_delta :my_cache_key, 10
# gauge_delta :my_cache_key, 15
# # Returns a value of `5`
def gauge_delta(cache_key, value)
previous_value = gauge_delta_cache[cache_key]
gauge_delta_cache[cache_key] = value
return unless previous_value
value - previous_value
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems