diff options
Diffstat (limited to 'Godeps/_workspace/src/gopkg.in/throttled/throttled.v1/examples/custom/main.go')
-rw-r--r-- | Godeps/_workspace/src/gopkg.in/throttled/throttled.v1/examples/custom/main.go | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/Godeps/_workspace/src/gopkg.in/throttled/throttled.v1/examples/custom/main.go b/Godeps/_workspace/src/gopkg.in/throttled/throttled.v1/examples/custom/main.go deleted file mode 100644 index b3fe993e8..000000000 --- a/Godeps/_workspace/src/gopkg.in/throttled/throttled.v1/examples/custom/main.go +++ /dev/null @@ -1,90 +0,0 @@ -package main - -import ( - "flag" - "fmt" - "log" - "math/rand" - "net/http" - "sync" - "time" - - "gopkg.in/throttled/throttled.v1" -) - -var ( - 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") -) - -// Custom limiter: allow requests to the /a path on even seconds only, and -// allow access to the /b path on odd seconds only. -// -// Yes this is absurd. A more realistic case could be to allow requests to some -// contest page only during a limited time window. -type customLimiter struct { -} - -func (c *customLimiter) Start() { - // No-op -} - -func (c *customLimiter) Limit(w http.ResponseWriter, r *http.Request) (<-chan bool, error) { - s := time.Now().Second() - ch := make(chan bool, 1) - ok := (r.URL.Path == "/a" && s%2 == 0) || (r.URL.Path == "/b" && s%2 != 0) - ch <- ok - if *output == "v" { - log.Printf("Custom Limiter: Path=%s, Second=%d; ok? %v", r.URL.Path, s, ok) - } - return ch, nil -} - -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 custom throttler using our custom limiter - t := throttled.Custom(&customLimiter{}) - // Set its 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("ok: %s", 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) -} |