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import ( | |
"fmt" | |
"log" | |
"os" | |
"sync" | |
"time" | |
) | |
var KEEP_CALLS = os.Getenv("KEEP_CALLS") != "" | |
type Period struct { | |
Start, End *time.Time | |
Period time.Duration | |
Done bool | |
} | |
type Calls struct { | |
sync.RWMutex | |
calls map[string]map[string]*Period | |
Total, Done uint64 | |
} | |
var GlobalCalls = Calls{ | |
calls: map[string]map[string]*Period{}, | |
Total: 0, Done: 0, | |
} | |
func (r *Calls) CountDone(name string) (uint64, uint64) { | |
r.RLock() | |
defer r.RUnlock() | |
return r.Done, r.Total | |
} | |
func (r *Calls) Start(name string) func() { | |
r.Lock() | |
defer r.Unlock() | |
r.Total++ | |
id := fmt.Sprintf("%d", r.Total) | |
start := time.Now() | |
log.Println("trace start:", id, name, start.Format(time.RFC3339)) | |
p := &Period{ | |
Start: &start, | |
End: nil, | |
Period: time.Duration(0), | |
Done: false, | |
} | |
if KEEP_CALLS { | |
if cs, ok := r.calls[name]; ok { | |
cs[id] = p | |
} else { | |
r.calls[name] = map[string]*Period{id: p} | |
} | |
} | |
endFunc := func() { | |
r.Lock() | |
defer r.Unlock() | |
r.Done++ | |
end := time.Now() | |
p.End = &end | |
p.Done = true | |
p.Period = p.End.Sub(*p.Start) | |
log.Println("trace end:", id, name, p.Start.Format(time.RFC3339), p.End.Format(time.RFC3339), p.Period) | |
} | |
return endFunc | |
} |
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