X-Git-Url: http://git.scottworley.com/reliable-chat/blobdiff_plain/fa5e7c1bccdf5c1ca1b05e0ef1f0e0478540ab51..451cb8dc4b339cf81c75f552cd8bc69986735f33:/server/server.go?ds=sidebyside diff --git a/server/server.go b/server/server.go index bfe1066..5c5ef50 100644 --- a/server/server.go +++ b/server/server.go @@ -2,12 +2,23 @@ package main import "container/list" import "encoding/json" +import "expvar" +import "flag" import "log" import "net/http" +import "strconv" import "time" +var port = flag.Int("port", 21059, "Port to listen on") + +var speak_count = expvar.NewInt("speak_count") +var fetch_count = expvar.NewInt("fetch_count") +var fetch_wait_count = expvar.NewInt("fetch_wait_count") +var fetch_wake_count = expvar.NewInt("fetch_wake_count") + type Message struct { Time time.Time + ID string Text string } @@ -28,23 +39,34 @@ func manage_store(store Store) { message_count := 0 max_messages := 1000 waiting := list.New() +main: for { select { - case new_message := <-store.Add: - messages.PushBack(new_message) + case new_message, ok := <-store.Add: + if !ok { + break main + } + speak_count.Add(1) for waiter := waiting.Front(); waiter != nil; waiter = waiter.Next() { waiter.Value.(*StoreRequest).Messages <- []Message{*new_message} close(waiter.Value.(*StoreRequest).Messages) + fetch_wake_count.Add(1) } waiting.Init() + messages.PushBack(new_message) if message_count < max_messages { message_count++ } else { messages.Remove(messages.Front()) } - case request := <-store.Get: + case request, ok := <-store.Get: + if !ok { + break main + } + fetch_count.Add(1) if messages.Back() == nil || !request.StartTime.Before(messages.Back().Value.(*Message).Time) { waiting.PushBack(request) + fetch_wait_count.Add(1) } else { start := messages.Back() response_size := 1 @@ -73,6 +95,48 @@ func start_store() Store { return store } +const frame_html = ` + + + + + + + + +` + func start_server(store Store) { http.HandleFunc("/fetch", func(w http.ResponseWriter, r *http.Request) { var since time.Time @@ -100,10 +164,17 @@ func start_server(store Store) { }) http.HandleFunc("/speak", func(w http.ResponseWriter, r *http.Request) { - store.Add <- &Message{time.Now(), r.FormValue("text")} + store.Add <- &Message{ + time.Now(), + r.FormValue("id"), + r.FormValue("text")} + }) + + http.HandleFunc("/frame", func(w http.ResponseWriter, r *http.Request) { + w.Write([]byte(frame_html)); }) - log.Fatal(http.ListenAndServe(":8080", nil)) + log.Fatal(http.ListenAndServe(":"+strconv.Itoa(*port), nil)) } func main() {