class NewRelic::Agent::TransactionMetrics

Constants

DEFAULT_PROC

Public Class Methods

new() click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 15
def initialize
  @lock = Mutex.new
  @unscoped = Hash.new(&DEFAULT_PROC)
  @scoped = Hash.new(&DEFAULT_PROC)
end

Public Instance Methods

[](key) click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 41
def [](key)
  @unscoped[key]
end
_record_metrics(names, value, aux, target, &blk) click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 53
def _record_metrics(names, value, aux, target, &blk)
  # This looks dumb, but we're avoiding an extra Array allocation.
  case names
  when Array
    names.each do |name|
      @lock.synchronize { target[name].record(value, aux, &blk) }
    end
  else
    @lock.synchronize { target[names].record(value, aux, &blk) }
  end
end
each_scoped() { |name, stats| ... } click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 49
def each_scoped
  @lock.synchronize { @scoped.each { |name, stats| yield(name, stats) } }
end
each_unscoped() { |name, stats| ... } click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 45
def each_unscoped
  @lock.synchronize { @unscoped.each { |name, stats| yield(name, stats) } }
end
has_key?(key) click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 37
def has_key?(key)
  @unscoped.has_key?(key)
end
record_scoped_and_unscoped(names, value = nil, aux = nil, &blk) click to toggle source

As a general rule, when recording a scoped metric, the corresponding unscoped metric should always be recorded as well.

As an optimization, scoped metrics are representated within this class only by their entries in the @scoped Hash, and it’s up to clients to propagate them into unscoped metrics as well when instances of this class are merged into the global metric store.

# File lib/new_relic/agent/transaction_metrics.rb, line 29
def record_scoped_and_unscoped(names, value = nil, aux = nil, &blk)
  _record_metrics(names, value, aux, @scoped, &blk)
end
record_unscoped(names, value = nil, aux = nil, &blk) click to toggle source
# File lib/new_relic/agent/transaction_metrics.rb, line 33
def record_unscoped(names, value = nil, aux = nil, &blk)
  _record_metrics(names, value, aux, @unscoped, &blk)
end