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// Copyright 2016 Circonus, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package circonusgometrics
import (
"github.com/circonus-labs/circonusllhist"
)
// Reset removes all existing counters and gauges.
func (m *CirconusMetrics) Reset() {
m.cm.Lock()
defer m.cm.Unlock()
m.cfm.Lock()
defer m.cfm.Unlock()
m.gm.Lock()
defer m.gm.Unlock()
m.gfm.Lock()
defer m.gfm.Unlock()
m.hm.Lock()
defer m.hm.Unlock()
m.tm.Lock()
defer m.tm.Unlock()
m.tfm.Lock()
defer m.tfm.Unlock()
m.counters = make(map[string]uint64)
m.counterFuncs = make(map[string]func() uint64)
m.gauges = make(map[string]interface{})
m.gaugeFuncs = make(map[string]func() int64)
m.histograms = make(map[string]*Histogram)
m.text = make(map[string]string)
m.textFuncs = make(map[string]func() string)
}
// snapshot returns a copy of the values of all registered counters and gauges.
func (m *CirconusMetrics) snapshot() (c map[string]uint64, g map[string]interface{}, h map[string]*circonusllhist.Histogram, t map[string]string) {
c = m.snapCounters()
g = m.snapGauges()
h = m.snapHistograms()
t = m.snapText()
return
}
func (m *CirconusMetrics) snapCounters() map[string]uint64 {
m.cm.Lock()
defer m.cm.Unlock()
m.cfm.Lock()
defer m.cfm.Unlock()
c := make(map[string]uint64, len(m.counters)+len(m.counterFuncs))
for n, v := range m.counters {
c[n] = v
}
if m.resetCounters && len(c) > 0 {
m.counters = make(map[string]uint64)
}
for n, f := range m.counterFuncs {
c[n] = f()
}
return c
}
func (m *CirconusMetrics) snapGauges() map[string]interface{} {
m.gm.Lock()
defer m.gm.Unlock()
m.gfm.Lock()
defer m.gfm.Unlock()
g := make(map[string]interface{}, len(m.gauges)+len(m.gaugeFuncs))
for n, v := range m.gauges {
g[n] = v
}
if m.resetGauges && len(g) > 0 {
m.gauges = make(map[string]interface{})
}
for n, f := range m.gaugeFuncs {
g[n] = f()
}
return g
}
func (m *CirconusMetrics) snapHistograms() map[string]*circonusllhist.Histogram {
m.hm.Lock()
defer m.hm.Unlock()
h := make(map[string]*circonusllhist.Histogram, len(m.histograms))
for n, hist := range m.histograms {
hist.rw.Lock()
h[n] = hist.hist.CopyAndReset()
hist.rw.Unlock()
}
if m.resetHistograms && len(h) > 0 {
m.histograms = make(map[string]*Histogram)
}
return h
}
func (m *CirconusMetrics) snapText() map[string]string {
m.tm.Lock()
defer m.tm.Unlock()
m.tfm.Lock()
defer m.tfm.Unlock()
t := make(map[string]string, len(m.text)+len(m.textFuncs))
for n, v := range m.text {
t[n] = v
}
if m.resetText && len(t) > 0 {
m.text = make(map[string]string)
}
for n, f := range m.textFuncs {
t[n] = f()
}
return t
}
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