gotosocial/vendor/github.com/spf13/jwalterweatherman/log_counter.go
tobi 0884f89431
Implement Cobra CLI tooling, Viper config tooling (#336)
* start pulling out + replacing urfave and config

* replace many many instances of config

* move more stuff => viper

* properly remove urfave

* move some flags to root command

* add testrig commands to root

* alias config file keys

* start adding cli parsing tests

* reorder viper init

* remove config path alias

* fmt

* change config file keys to non-nested

* we're more or less in business now

* tidy up the common func

* go fmt

* get tests passing again

* add note about the cliparsing tests

* reorganize

* update docs with changes

* structure cmd dir better

* rename + move some files around

* fix dangling comma
2021-12-07 13:31:39 +01:00

46 lines
958 B
Go

// Copyright © 2016 Steve Francia <spf@spf13.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package jwalterweatherman
import (
"io"
"sync/atomic"
)
// Counter is an io.Writer that increments a counter on Write.
type Counter struct {
count uint64
}
func (c *Counter) incr() {
atomic.AddUint64(&c.count, 1)
}
// Reset resets the counter.
func (c *Counter) Reset() {
atomic.StoreUint64(&c.count, 0)
}
// Count returns the current count.
func (c *Counter) Count() uint64 {
return atomic.LoadUint64(&c.count)
}
func (c *Counter) Write(p []byte) (n int, err error) {
c.incr()
return len(p), nil
}
// LogCounter creates a LogListener that counts log statements >= the given threshold.
func LogCounter(counter *Counter, t1 Threshold) LogListener {
return func(t2 Threshold) io.Writer {
if t2 < t1 {
// Not interested in this threshold.
return nil
}
return counter
}
}