mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-25 12:57:17 +00:00
289b30715d
This commit converts the dependency management from Godeps to the vendor folder, also switching the tool from godep to trash. Since the upstream tool lacks a few features proposed via a few PRs, until those PRs are merged in (if), use github.com/karalabe/trash. You can update dependencies via trash --update. All dependencies have been updated to their latest version. Parts of the build system are reworked to drop old notions of Godeps and invocation of the go vet command so that it doesn't run against the vendor folder, as that will just blow up during vetting. The conversion drops OpenCL (and hence GPU mining support) from ethash and our codebase. The short reasoning is that there's noone to maintain and having opencl libs in our deps messes up builds as go install ./... tries to build them, failing with unsatisfied link errors for the C OpenCL deps. golang.org/x/net/context is not vendored in. We expect it to be fetched by the user (i.e. using go get). To keep ci.go builds reproducible the package is "vendored" in build/_vendor.
128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
package metrics
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import "sync"
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// GaugeFloat64s hold a float64 value that can be set arbitrarily.
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type GaugeFloat64 interface {
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Snapshot() GaugeFloat64
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Update(float64)
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Value() float64
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}
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// GetOrRegisterGaugeFloat64 returns an existing GaugeFloat64 or constructs and registers a
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// new StandardGaugeFloat64.
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func GetOrRegisterGaugeFloat64(name string, r Registry) GaugeFloat64 {
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if nil == r {
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r = DefaultRegistry
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}
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return r.GetOrRegister(name, NewGaugeFloat64()).(GaugeFloat64)
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}
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// NewGaugeFloat64 constructs a new StandardGaugeFloat64.
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func NewGaugeFloat64() GaugeFloat64 {
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if UseNilMetrics {
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return NilGaugeFloat64{}
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}
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return &StandardGaugeFloat64{
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value: 0.0,
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}
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}
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// NewRegisteredGaugeFloat64 constructs and registers a new StandardGaugeFloat64.
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func NewRegisteredGaugeFloat64(name string, r Registry) GaugeFloat64 {
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c := NewGaugeFloat64()
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if nil == r {
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r = DefaultRegistry
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}
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r.Register(name, c)
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return c
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}
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// NewFunctionalGauge constructs a new FunctionalGauge.
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func NewFunctionalGaugeFloat64(f func() float64) GaugeFloat64 {
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if UseNilMetrics {
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return NilGaugeFloat64{}
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}
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return &FunctionalGaugeFloat64{value: f}
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}
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// NewRegisteredFunctionalGauge constructs and registers a new StandardGauge.
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func NewRegisteredFunctionalGaugeFloat64(name string, r Registry, f func() float64) GaugeFloat64 {
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c := NewFunctionalGaugeFloat64(f)
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if nil == r {
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r = DefaultRegistry
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}
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r.Register(name, c)
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return c
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}
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// GaugeFloat64Snapshot is a read-only copy of another GaugeFloat64.
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type GaugeFloat64Snapshot float64
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// Snapshot returns the snapshot.
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func (g GaugeFloat64Snapshot) Snapshot() GaugeFloat64 { return g }
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// Update panics.
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func (GaugeFloat64Snapshot) Update(float64) {
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panic("Update called on a GaugeFloat64Snapshot")
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}
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// Value returns the value at the time the snapshot was taken.
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func (g GaugeFloat64Snapshot) Value() float64 { return float64(g) }
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// NilGauge is a no-op Gauge.
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type NilGaugeFloat64 struct{}
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// Snapshot is a no-op.
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func (NilGaugeFloat64) Snapshot() GaugeFloat64 { return NilGaugeFloat64{} }
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// Update is a no-op.
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func (NilGaugeFloat64) Update(v float64) {}
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// Value is a no-op.
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func (NilGaugeFloat64) Value() float64 { return 0.0 }
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// StandardGaugeFloat64 is the standard implementation of a GaugeFloat64 and uses
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// sync.Mutex to manage a single float64 value.
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type StandardGaugeFloat64 struct {
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mutex sync.Mutex
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value float64
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}
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// Snapshot returns a read-only copy of the gauge.
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func (g *StandardGaugeFloat64) Snapshot() GaugeFloat64 {
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return GaugeFloat64Snapshot(g.Value())
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}
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// Update updates the gauge's value.
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func (g *StandardGaugeFloat64) Update(v float64) {
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g.mutex.Lock()
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defer g.mutex.Unlock()
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g.value = v
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}
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// Value returns the gauge's current value.
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func (g *StandardGaugeFloat64) Value() float64 {
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g.mutex.Lock()
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defer g.mutex.Unlock()
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return g.value
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}
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// FunctionalGaugeFloat64 returns value from given function
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type FunctionalGaugeFloat64 struct {
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value func() float64
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}
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// Value returns the gauge's current value.
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func (g FunctionalGaugeFloat64) Value() float64 {
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return g.value()
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}
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// Snapshot returns the snapshot.
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func (g FunctionalGaugeFloat64) Snapshot() GaugeFloat64 { return GaugeFloat64Snapshot(g.Value()) }
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// Update panics.
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func (FunctionalGaugeFloat64) Update(float64) {
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panic("Update called on a FunctionalGaugeFloat64")
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}
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