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() }