forked from fjballest/clive
/
stats.go
58 lines (49 loc) · 1.03 KB
/
stats.go
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package zx
import (
"bytes"
"fmt"
"sync"
)
// Statistics
type Call int
const (
Sstat Call = iota // calls to stat
Sget // calls to get
Sput // calls to put
Smove // calls to move
Slink // calls to link
Sremove // calls to remove/all
Swstat // calls to wstat
Sfind // calls to find
Scall // totals for all calls.
Nstats // number of stats.
)
// Stats for FS implementors
struct Stats {
sync.Mutex
Nb [Nstats]int64
}
var name = [...]string{
"stats", "gets", "puts", "moves", "links", "removes", "wstats", "finds", "total",
}
func (s *Stats) Count(what Call) {
s.Lock()
s.Nb[what]++
s.Unlock()
}
func (s *Stats) String() string {
var buf bytes.Buffer
s.Lock()
defer s.Unlock()
for i := Call(0); i < Nstats; i++ {
fmt.Fprintf(&buf, "%6d %s\n", s.Nb[i], name[i])
}
return buf.String()
}
func (s *Stats) Clear() {
s.Lock()
defer s.Unlock()
for i := Call(0); i < Nstats; i++ {
s.Nb[i] = 0
}
}