Don't send empty messages

[reliable-chat] / server / server.go

diff --git a/server/server.go b/server/server.go
index 8ce96787ac89658490ab943dc2b7710db4a38a14..8dce69be6d77cfbbae9d73e9d96bfac4f9215445 100644 (file)
--- a/server/server.go
+++ b/server/server.go
@@ -1,3 +1,20 @@
+/*  reliable-chat - multipath chat
+ *  Copyright (C) 2012  Scott Worley <sworley@chkno.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+

 package main
 
 import "container/list"
 package main
 
 import "container/list"


@@ -10,11 +27,15 @@ import "strconv"
 import "time"
 
 var port = flag.Int("port", 21059, "Port to listen on")
 import "time"
 
 var port = flag.Int("port", 21059, "Port to listen on")

+var localaddress = flag.String("localaddress", "", "Local address to bind to")
+var max_messages = flag.Int("maxmessages", 1000, "Maximum number of messages to retain")

 
 

+var start_time = expvar.NewInt("start_time")

 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")
 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")

+var drop_due_to_limit_count = expvar.NewInt("drop_due_to_limit_count")

 
 type Message struct {
        Time time.Time
 
 type Message struct {
        Time time.Time


@@ -37,7 +58,6 @@ type Store struct {
 func manage_store(store Store) {
        messages := list.New()
        message_count := 0
 func manage_store(store Store) {
        messages := list.New()
        message_count := 0

-       max_messages := 1000

        waiting := list.New()
 main:
        for {
        waiting := list.New()
 main:
        for {


@@ -54,10 +74,11 @@ main:
                        }
                        waiting.Init()
                        messages.PushBack(new_message)
                        }
                        waiting.Init()
                        messages.PushBack(new_message)

-                       if message_count < max_messages {
+                       if message_count < *max_messages {

                                message_count++
                        } else {
                                messages.Remove(messages.Front())
                                message_count++
                        } else {
                                messages.Remove(messages.Front())

+                               drop_due_to_limit_count.Add(1)

                        }
                case request, ok := <-store.Get:
                        if !ok {
                        }
                case request, ok := <-store.Get:
                        if !ok {


@@ -95,6 +116,10 @@ func start_store() Store {
        return store
 }
 
        return store
 }
 

+const robots_txt = `User-agent: *
+Disallow: /
+`
+

 func start_server(store Store) {
        http.HandleFunc("/fetch", func(w http.ResponseWriter, r *http.Request) {
                var since time.Time
 func start_server(store Store) {
        http.HandleFunc("/fetch", func(w http.ResponseWriter, r *http.Request) {
                var since time.Time


@@ -118,6 +143,7 @@ func start_server(store Store) {
                        return
                }
                w.Header().Add("Content-Type", "application/json")
                        return
                }
                w.Header().Add("Content-Type", "application/json")

+               w.Header().Add("Access-Control-Allow-Origin", "*")

                w.Write(json_encoded)
        })
 
                w.Write(json_encoded)
        })
 


@@ -128,10 +154,16 @@ func start_server(store Store) {
                        r.FormValue("text")}
        })
 
                        r.FormValue("text")}
        })
 

-       log.Fatal(http.ListenAndServe(":"+strconv.Itoa(*port), nil))
+       http.HandleFunc("/robots.txt", func(w http.ResponseWriter, r *http.Request) {
+               w.Write([]byte(robots_txt))
+       })
+
+       log.Fatal(http.ListenAndServe(*localaddress+":"+strconv.Itoa(*port), nil))

 }
 
 func main() {
 }
 
 func main() {

+       flag.Parse()
+       start_time.Set(time.Now().UnixNano())

        store := start_store()
        start_server(store)
 }
        store := start_store()
        start_server(store)
 }