gin/examples/realtime-advanced/stats.go
2017-06-14 21:14:25 -05:00

59 lines
1.1 KiB
Go

package main
import (
"runtime"
"sync"
"time"
"github.com/manucorporat/stats"
)
var (
ips = stats.New()
messages = stats.New()
users = stats.New()
mutexStats sync.RWMutex
savedStats map[string]uint64
)
func statsWorker() {
c := time.Tick(1 * time.Second)
var lastMallocs uint64
var lastFrees uint64
for range c {
var stats runtime.MemStats
runtime.ReadMemStats(&stats)
mutexStats.Lock()
savedStats = map[string]uint64{
"timestamp": uint64(time.Now().Unix()),
"HeapInuse": stats.HeapInuse,
"StackInuse": stats.StackInuse,
"Mallocs": (stats.Mallocs - lastMallocs),
"Frees": (stats.Frees - lastFrees),
"Inbound": uint64(messages.Get("inbound")),
"Outbound": uint64(messages.Get("outbound")),
"Connected": connectedUsers(),
}
lastMallocs = stats.Mallocs
lastFrees = stats.Frees
messages.Reset()
mutexStats.Unlock()
}
}
func connectedUsers() uint64 {
connected := users.Get("connected") - users.Get("disconnected")
if connected < 0 {
return 0
}
return uint64(connected)
}
func Stats() map[string]uint64 {
mutexStats.RLock()
defer mutexStats.RUnlock()
return savedStats
}