5d54584f03
Also bringing: . golang.org/x/net 5561cd9b4330353950f399814f427425c0a26fd2 . github.com/docker/distribution 83389a148052d74ac602f5f1d62f86ff2f3c4aa5 . github.com/docker/swarmkit bd69f6e8e301645afd344913fa1ede53a0a111fb . github.com/docker/go-metrics d466d4f6fd960e01820085bd7e1a24426ee7ef18 . github.com/prometheus/client_golang 52437c81da6b127a9925d17eb3a382a2e5fd395e . github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9 . github.com/prometheus/client_model fa8ad6fec33561be4280a8f0514318c79d7f6cb6 . github.com/prometheus/common ebdfc6da46522d58825777cf1f90490a5b1ef1d8 . github.com/prometheus/procfs abf152e5f3e97f2fafac028d2cc06c1feb87ffa5 . github.com/matttproud/golang_protobuf_extensions v1.0.0 Signed-off-by: Mathieu Champlon <mathieu.champlon@docker.com>
73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package metrics
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import "github.com/prometheus/client_golang/prometheus"
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// Gauge is a metric that allows incrementing and decrementing a value
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type Gauge interface {
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Inc(...float64)
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Dec(...float64)
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// Add adds the provided value to the gauge's current value
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Add(float64)
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// Set replaces the gauge's current value with the provided value
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Set(float64)
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}
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// LabeledGauge describes a gauge the must have values populated before use.
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type LabeledGauge interface {
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WithValues(labels ...string) Gauge
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}
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type labeledGauge struct {
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pg *prometheus.GaugeVec
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}
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func (lg *labeledGauge) WithValues(labels ...string) Gauge {
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return &gauge{pg: lg.pg.WithLabelValues(labels...)}
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}
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func (lg *labeledGauge) Describe(c chan<- *prometheus.Desc) {
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lg.pg.Describe(c)
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}
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func (lg *labeledGauge) Collect(c chan<- prometheus.Metric) {
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lg.pg.Collect(c)
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}
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type gauge struct {
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pg prometheus.Gauge
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}
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func (g *gauge) Inc(vs ...float64) {
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if len(vs) == 0 {
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g.pg.Inc()
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}
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g.Add(sumFloat64(vs...))
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}
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func (g *gauge) Dec(vs ...float64) {
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if len(vs) == 0 {
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g.pg.Dec()
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}
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g.Add(-sumFloat64(vs...))
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}
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func (g *gauge) Add(v float64) {
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g.pg.Add(v)
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}
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func (g *gauge) Set(v float64) {
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g.pg.Set(v)
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}
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func (g *gauge) Describe(c chan<- *prometheus.Desc) {
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g.pg.Describe(c)
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}
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func (g *gauge) Collect(c chan<- prometheus.Metric) {
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g.pg.Collect(c)
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}
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