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-rw-r--r--vendor/gopkg.in/throttled/throttled.v1/examples/interval-vary/main.go74
1 files changed, 74 insertions, 0 deletions
diff --git a/vendor/gopkg.in/throttled/throttled.v1/examples/interval-vary/main.go b/vendor/gopkg.in/throttled/throttled.v1/examples/interval-vary/main.go
new file mode 100644
index 000000000..f43cdc122
--- /dev/null
+++ b/vendor/gopkg.in/throttled/throttled.v1/examples/interval-vary/main.go
@@ -0,0 +1,74 @@
+package main
+
+import (
+ "flag"
+ "fmt"
+ "log"
+ "math/rand"
+ "net/http"
+ "sync"
+ "time"
+
+ "gopkg.in/throttled/throttled.v1"
+)
+
+var (
+ delay = flag.Duration("delay", 200*time.Millisecond, "delay between calls")
+ bursts = flag.Int("bursts", 10, "number of bursts allowed")
+ maxkeys = flag.Int("max-keys", 1000, "maximum number of keys")
+ delayRes = flag.Duration("delay-response", 0, "delay the response by a random duration between 0 and this value")
+ output = flag.String("output", "v", "type of output, one of `v`erbose, `q`uiet, `ok`-only, `ko`-only")
+)
+
+func main() {
+ flag.Parse()
+
+ var h http.Handler
+ var ok, ko int
+ var mu sync.Mutex
+
+ // Keep the start time to print since-time
+ start := time.Now()
+
+ // Create the interval throttler
+ t := throttled.Interval(throttled.D(*delay), *bursts, &throttled.VaryBy{
+ Path: true,
+ }, *maxkeys)
+ // Set the denied handler
+ t.DeniedHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+ if *output == "v" || *output == "ko" {
+ log.Printf("KO: %s", time.Since(start))
+ }
+ throttled.DefaultDeniedHandler.ServeHTTP(w, r)
+ mu.Lock()
+ defer mu.Unlock()
+ ko++
+ })
+
+ // Throttle the OK handler
+ rand.Seed(time.Now().Unix())
+ h = t.Throttle(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+ if *output == "v" || *output == "ok" {
+ log.Printf("%s: ok: %s", r.URL.Path, time.Since(start))
+ }
+ if *delayRes > 0 {
+ wait := time.Duration(rand.Intn(int(*delayRes)))
+ time.Sleep(wait)
+ }
+ w.WriteHeader(200)
+ mu.Lock()
+ defer mu.Unlock()
+ ok++
+ }))
+
+ // Print stats once in a while
+ go func() {
+ for _ = range time.Tick(10 * time.Second) {
+ mu.Lock()
+ log.Printf("ok: %d, ko: %d", ok, ko)
+ mu.Unlock()
+ }
+ }()
+ fmt.Println("server listening on port 9000")
+ http.ListenAndServe(":9000", h)
+}