1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
moby--moby/vendor/github.com/armon/go-metrics/sink.go

53 lines
1.4 KiB
Go
Raw Normal View History

package metrics
// The MetricSink interface is used to transmit metrics information
// to an external system
type MetricSink interface {
// A Gauge should retain the last value it is set to
SetGauge(key []string, val float32)
// Should emit a Key/Value pair for each call
EmitKey(key []string, val float32)
// Counters should accumulate values
IncrCounter(key []string, val float32)
// Samples are for timing information, where quantiles are used
AddSample(key []string, val float32)
}
// BlackholeSink is used to just blackhole messages
type BlackholeSink struct{}
func (*BlackholeSink) SetGauge(key []string, val float32) {}
func (*BlackholeSink) EmitKey(key []string, val float32) {}
func (*BlackholeSink) IncrCounter(key []string, val float32) {}
func (*BlackholeSink) AddSample(key []string, val float32) {}
// FanoutSink is used to sink to fanout values to multiple sinks
type FanoutSink []MetricSink
func (fh FanoutSink) SetGauge(key []string, val float32) {
for _, s := range fh {
s.SetGauge(key, val)
}
}
func (fh FanoutSink) EmitKey(key []string, val float32) {
for _, s := range fh {
s.EmitKey(key, val)
}
}
func (fh FanoutSink) IncrCounter(key []string, val float32) {
for _, s := range fh {
s.IncrCounter(key, val)
}
}
func (fh FanoutSink) AddSample(key []string, val float32) {
for _, s := range fh {
s.AddSample(key, val)
}
}