use string builder in buildFlexiWhere

add string builder growth hints
track favicon perf

common/alerts.go

@@ -56,6 +56,8 @@ func init() {
 	})
 }
 
+const AlertsGrowHint = len(`{"msgs":[],"count":,"tc":}`) + 1 + 7
+
 // TODO: See if we can json.Marshal instead?
 func escapeTextInJson(in string) string {
 	in = strings.Replace(in, "\"", "\\\"", -1)
@@ -165,6 +167,8 @@ func buildAlertString(msg string, sub []string, path, avatar string, asid int) s
 	return sb.String()
 }
 
+const AlertsGrowHint2 = len(`{"msg":"","sub":[],"path":"","avatar":"","id":}`) + 3 + 3 + 1 + 1 + 1
+
 // TODO: Use a string builder?
 func buildAlertSb(sb *strings.Builder, msg string, sub []string, path, avatar string, asid int) {
 	sb.WriteString(`{"msg":"`)

gen_router.go

@@ -2665,7 +2665,7 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user c
 					}
 					req.URL.Path = "/s/favicon.ico"
 					routes.StaticFile(w,req)
-					co.RouteViewCounter.Bump(171)
+					co.RouteViewCounter.Bump3(171, cn)
 					return nil
 				case "opensearch.xml":
 					co.RouteViewCounter.Bump(170)

query_gen/mysql.go

@@ -651,41 +651,66 @@ func (a *MysqlAdapter) buildWhere(where string, sb *strings.Builder) error {
 }
 
 // The new version of buildWhere() currently only used in ComplexSelect for complex OO builder queries
+const FlexiHint1 = len(`  < UTC_TIMESTAMP() - interval ?  `)
+
 func (a *MysqlAdapter) buildFlexiWhere(where string, dateCutoff *dateCutoff) (q string, err error) {
 	if len(where) == 0 && dateCutoff == nil {
 		return "", nil
 	}
-	q = " WHERE"
+
+	var sb strings.Builder
+	sb.WriteString(" WHERE")
 	if dateCutoff != nil {
+		sb.Grow(6 + FlexiHint1)
+		sb.WriteRune(' ')
+		sb.WriteString(dateCutoff.Column)
 		switch dateCutoff.Type {
 		case 0:
-			q += " " + dateCutoff.Column + " BETWEEN (UTC_TIMESTAMP() - interval " + strconv.Itoa(dateCutoff.Quantity) + " " + dateCutoff.Unit + ") AND UTC_TIMESTAMP() AND"
+			sb.WriteString(" BETWEEN (UTC_TIMESTAMP() - interval ")
+			q += strconv.Itoa(dateCutoff.Quantity) + " " + dateCutoff.Unit + ") AND UTC_TIMESTAMP()"
 		case 11:
-			q += " " + dateCutoff.Column + " < UTC_TIMESTAMP() - interval ? " + dateCutoff.Unit + " AND"
+			sb.WriteString(" < UTC_TIMESTAMP() - interval ? ")
+			sb.WriteString(dateCutoff.Unit)
 		default:
-			q += " " + dateCutoff.Column + " < UTC_TIMESTAMP() - interval " + strconv.Itoa(dateCutoff.Quantity) + " " + dateCutoff.Unit + " AND"
+			sb.WriteString(" < UTC_TIMESTAMP() - interval ")
+			sb.WriteString(strconv.Itoa(dateCutoff.Quantity))
+			sb.WriteRune(' ')
+			sb.WriteString(dateCutoff.Unit)
 		}
 	}
 
+	if dateCutoff != nil && len(where) != 0 {
+		sb.WriteString(" AND")
+	}
+
 	if len(where) != 0 {
-		for _, loc := range processWhere(where) {
+		wh := processWhere(where)
+		sb.Grow((len(wh) * 8) - 5)
+		for i, loc := range wh {
+			if i != 0 {
+				sb.WriteString(" AND ")
+			}
 			for _, token := range loc.Expr {
 				switch token.Type {
 				case TokenFunc, TokenOp, TokenNumber, TokenSub, TokenOr, TokenNot, TokenLike:
-					q += " " + token.Contents
+					sb.WriteString(" ")
+					sb.WriteString(token.Contents)
 				case TokenColumn:
-					q += " `" + token.Contents + "`"
+					sb.WriteString(" `")
+					sb.WriteString(token.Contents)
+					sb.WriteString("`")
 				case TokenString:
-					q += " '" + token.Contents + "'"
+					sb.WriteString(" '")
+					sb.WriteString(token.Contents)
+					sb.WriteString("'")
 				default:
-					return q, errors.New("This token doesn't exist o_o")
+					return sb.String(), errors.New("This token doesn't exist o_o")
 				}
 			}
-			q += " AND"
 		}
 	}
 
-	return q[0 : len(q)-4], nil
+	return sb.String(), nil
 }
 
 func (a *MysqlAdapter) buildOrderby(orderby string) (q string) {

router_gen/main.go

@@ -892,7 +892,7 @@ func (r *GenRouter) routeSwitch(w http.ResponseWriter, req *http.Request, user c
 					}
 					req.URL.Path = "/s/favicon.ico"
 					routes.StaticFile(w,req)
-					co.RouteViewCounter.Bump({{index .AllRouteMap "routes.Favicon"}})
+					co.RouteViewCounter.Bump3({{index .AllRouteMap "routes.Favicon"}}, cn)
 					return nil
 				case "opensearch.xml":
 					co.RouteViewCounter.Bump({{index .AllRouteMap "routes.OpenSearchXml"}})

routes.go

@@ -151,6 +151,7 @@ func routeAPI(w http.ResponseWriter, r *http.Request, user c.User) c.RouteError
 
 		var ok bool
 		var sb strings.Builder
+		sb.Grow(c.AlertsGrowHint + (len(alerts) * c.AlertsGrowHint2))
 		sb.WriteString(`{"msgs":[`)
 		for i, alert := range alerts {
 			if i != 0 {