gotools/gopls/internal/telemetry/latency.go

type latencyKey …

var latencyBuckets …

var latencyCounterMu …

var latencyCounters …

// ForEachLatencyCounter runs the provided function for each current latency
// counter measuring the given operation.
//
// Exported for testing.
func ForEachLatencyCounter(operation string, isError bool, f func(*counter.Counter)) { … }

// getLatencyCounter returns the counter used to record latency of the given
// operation in the given bucket.
func getLatencyCounter(operation, bucket string, isError bool) *counter.Counter { … }

// StartLatencyTimer starts a timer for the gopls operation with the given
// name, and returns a func to stop the timer and record the latency sample.
//
// If the context provided to the resulting func is done, no observation is
// recorded.
func StartLatencyTimer(operation string) func(context.Context, error) { … }