initial import

example/http/breaker/server.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"net/http"
+	"runtime"
+	"time"
+
+	"zero/core/logx"
+	"zero/core/service"
+	"zero/core/stat"
+	"zero/core/syncx"
+	"zero/ngin"
+)
+
+func main() {
+	logx.Disable()
+	stat.SetReporter(nil)
+	server := ngin.MustNewEngine(ngin.NgConf{
+		ServiceConf: service.ServiceConf{
+			Name: "breaker",
+			Log: logx.LogConf{
+				Mode: "console",
+			},
+		},
+		Host:     "0.0.0.0",
+		Port:     8080,
+		MaxConns: 1000,
+		Timeout:  3000,
+	})
+	latch := syncx.NewLimit(10)
+	server.AddRoute(ngin.Route{
+		Method: http.MethodGet,
+		Path:   "/heavy",
+		Handler: func(w http.ResponseWriter, r *http.Request) {
+			if latch.TryBorrow() {
+				defer latch.Return()
+				runtime.LockOSThread()
+				defer runtime.UnlockOSThread()
+				begin := time.Now()
+				for {
+					if time.Now().Sub(begin) > time.Millisecond*50 {
+						break
+					}
+				}
+			} else {
+				w.WriteHeader(http.StatusInternalServerError)
+			}
+		},
+	})
+	server.AddRoute(ngin.Route{
+		Method: http.MethodGet,
+		Path:   "/good",
+		Handler: func(w http.ResponseWriter, r *http.Request) {
+			w.WriteHeader(http.StatusOK)
+		},
+	})
+	defer server.Stop()
+	server.Start()
+}