86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
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// Copyright (C) 2020 Storj Labs, Inc.
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// See LICENSE for copying information.
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package metainfo
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import (
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"sync"
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"time"
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"github.com/spacemonkeygo/monkit/v3"
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)
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var allObserverStatsCollectors = newObserverStatsCollectors()
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type observerStatsCollectors struct {
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mu sync.Mutex
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observer map[string]*observerStats
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}
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func newObserverStatsCollectors() *observerStatsCollectors {
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return &observerStatsCollectors{
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observer: make(map[string]*observerStats),
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}
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}
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func (list *observerStatsCollectors) GetStats(name string) *observerStats {
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list.mu.Lock()
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defer list.mu.Unlock()
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stats, ok := list.observer[name]
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if !ok {
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stats = newObserverStats(name)
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mon.Chain(stats)
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list.observer[name] = stats
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}
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return stats
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}
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// observerStats tracks the most recent observer stats.
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type observerStats struct {
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mu sync.Mutex
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key monkit.SeriesKey
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total time.Duration
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object *monkit.DurationDist
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inline *monkit.DurationDist
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remote *monkit.DurationDist
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}
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func newObserverStats(name string) *observerStats {
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return &observerStats{
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key: monkit.NewSeriesKey("observer").WithTag("name", name),
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total: 0,
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object: nil,
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inline: nil,
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remote: nil,
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}
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}
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func (stats *observerStats) Observe(observer *observerContext) {
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stats.mu.Lock()
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defer stats.mu.Unlock()
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stats.total = observer.object.Sum + observer.inline.Sum + observer.remote.Sum
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stats.object = observer.object
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stats.inline = observer.inline
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stats.remote = observer.remote
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}
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func (stats *observerStats) Stats(cb func(key monkit.SeriesKey, field string, val float64)) {
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stats.mu.Lock()
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defer stats.mu.Unlock()
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cb(stats.key, "sum", stats.total.Seconds())
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if stats.object != nil {
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stats.object.Stats(cb)
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}
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if stats.inline != nil {
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stats.inline.Stats(cb)
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}
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if stats.remote != nil {
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stats.remote.Stats(cb)
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}
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}
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