add IsAlive

pool.go

@@ -178,10 +178,8 @@ func (d *Pool) ping(q *conn) (err error) {
 	var n any
 
 	if err = d.qGet(q, &n, "SELECT 1"); err != nil {
-		d.logger.Printf("DB_PING_ERR: MODE: %v, HOST: %s, PORT: %d, ERR: %v",
-			q.Mode.String(),
-			q.Config().ConnConfig.Host,
-			q.Config().ConnConfig.Port,
+		d.logger.Printf("DB_PING_ERR: SRV: %s; %v",
+			q.ToString(),
 			err,
 		)
 	}
@@ -247,6 +245,10 @@ func (d *Pool) Stop() {
 	d.stop = true
 }
 
+func (d *Pool) IsAlive() bool {
+	return d.srvMaster.Alive
+}
+
 func (d *Pool) prepare(sql string, param map[string]any) string {
 	for n, t := range param {
 		switch t.(type) {