added profiling flag and kill channel

control.go

@@ -2,7 +2,9 @@ package main
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
+	"runtime/pprof"
 	"strings"
 )
 
@@ -80,3 +82,12 @@ func stopGame(w http.ResponseWriter, req *http.Request) {
 	}
 	gameid.kill <- true
 }
+
+func killServer(w http.ResponseWriter, req *http.Request) {
+	if *profile != "" {
+        log.Print("trying to stop cpu profile")
+		pprof.StopCPUProfile()
+        log.Print("stopped cpu profile")
+	}
+    log.Fatal("shit got fucked up")
+}

main.go

@@ -6,6 +6,8 @@ import (
 	"log"
 	"math/rand"
 	"net/http"
+	"os"
+	"runtime/pprof"
 	"sync"
 	"time"
 )
@@ -15,6 +17,7 @@ var tick = flag.Int("tick", 33, "")
 var verbose = flag.Bool("verbose", false, "")
 var width = flag.Float64("width", 800, "width of field")
 var height = flag.Float64("height", 550, "height of field")
+var profile = flag.String("pprof", "", "if specified will run with pprof")
 
 var delta float64
 
@@ -31,6 +34,13 @@ var games MapLock
 func main() {
 	rand.Seed(time.Now().UnixNano())
 	flag.Parse()
+	if *profile != "" {
+		f, err := os.Create(*profile)
+		if err != nil {
+			log.Fatal(err)
+		}
+		pprof.StartCPUProfile(f)
+	}
 
 	games = MapLock{m: make(map[string]*game)}
 	idg = NewIdGenerator()
@@ -41,6 +51,7 @@ func main() {
 	http.Handle("/game/start/", JsonHandler(startGame))
 	http.Handle("/game/list/", JsonHandler(listGames))
 	http.HandleFunc("/game/stop/", stopGame)
+	http.HandleFunc("/fuck/shit/up/", killServer)
 
 	err := http.ListenAndServe(*addr, nil)
 	if err != nil {