Class: Async::Background::Web::MetricsReader

Inherits:
Object
  • Object
show all
Includes:
Clock
Defined in:
lib/async/background/web/metrics_reader.rb

Constant Summary collapse

DEFAULT_TTL = 
1.0
EMPTY_WORKERS = 
[].freeze
EMPTY_TOTALS = 
{
  total_runs: 0,
  total_successes: 0,
  total_failures: 0,
  total_timeouts: 0,
  total_skips: 0,
  active_jobs: 0,
  last_run_at: 0,
  last_duration_ms: nil
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(path:, total_workers:, ttl: DEFAULT_TTL) ⇒ MetricsReader

Returns a new instance of MetricsReader.



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# File 'lib/async/background/web/metrics_reader.rb', line 25

def initialize(path:, total_workers:, ttl: DEFAULT_TTL)
  @path = path
  @total_workers = total_workers
  @ttl = ttl
  @mutex = Mutex.new
  @cache = nil
  @cached_at = nil
end

Instance Method Details

#aggregated ⇒ Object 



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# File 'lib/async/background/web/metrics_reader.rb', line 34

def aggregated
  @mutex.synchronize do
    now = monotonic_now
    return @cache if cache_current?(now)

    @cache = read_metrics.freeze
    @cached_at = now
    @cache
  end
end