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go-zero/example/limit/period/periodlimit.go

67 lines
1.4 KiB
Go

package main
import (
"flag"
"fmt"
"log"
"runtime"
"strconv"
"sync"
"sync/atomic"
"time"
"zero/core/limit"
"zero/core/stores/redis"
)
const seconds = 5
var (
rdx = flag.String("redis", "localhost:6379", "the redis, default localhost:6379")
rdxType = flag.String("redisType", "node", "the redis type, default node")
rdxPass = flag.String("redisPass", "", "the redis password")
rdxKey = flag.String("redisKey", "rate", "the redis key, default rate")
threads = flag.Int("threads", runtime.NumCPU(), "the concurrent threads, default to cores")
)
func main() {
flag.Parse()
store := redis.NewRedis(*rdx, *rdxType, *rdxPass)
fmt.Println(store.Ping())
lmt := limit.NewPeriodLimit(seconds, 5, store, *rdxKey)
timer := time.NewTimer(time.Second * seconds)
quit := make(chan struct{})
defer timer.Stop()
go func() {
<-timer.C
close(quit)
}()
var allowed, denied int32
var wait sync.WaitGroup
for i := 0; i < *threads; i++ {
wait.Add(1)
go func() {
for {
select {
case <-quit:
wait.Done()
return
default:
if v, err := lmt.Take(strconv.FormatInt(int64(i), 10)); err == nil && v == limit.Allowed {
atomic.AddInt32(&allowed, 1)
} else if err != nil {
log.Fatal(err)
} else {
atomic.AddInt32(&denied, 1)
}
}
}
}()
}
wait.Wait()
fmt.Printf("allowed: %d, denied: %d, qps: %d\n", allowed, denied, (allowed+denied)/seconds)
}