prefetch handle info instead of waiting for load

activity.go

@@ -252,6 +252,8 @@ func savexonk(user *WhatAbout, x *Honk) {
 	if strings.Contains(aud, user.URL) {
 		whofore = 1
 	}
+	go prehandle(x.Honker)
+	go prehandle(x.Oonker)
 	res, err := stmtSaveHonk.Exec(x.UserID, x.What, x.Honker, x.XID, x.RID, dt, x.URL, aud,
 		x.Noise, x.Convoy, whofore, "html", x.Precis, x.Oonker, 0)
 	if err != nil {

fun.go

@@ -376,6 +376,9 @@ var handlelock sync.Mutex
 
 // handle, handle@host
 func handles(xid string) (string, string) {
+	if xid == "" {
+		return "", ""
+	}
 	handlelock.Lock()
 	handle := allhandles[xid]
 	handlelock.Unlock()
@@ -415,6 +418,14 @@ func findhandle(xid string) string {
 	return handle
 }
 
+var handleprelock sync.Mutex
+
+func prehandle(xid string) {
+	handleprelock.Lock()
+	defer handleprelock.Unlock()
+	handles(xid)
+}
+
 func prepend(s string, x []string) []string {
 	return append([]string{s}, x...)
 }