fix(connection): disconnect if recv return 0

src/connection/connection.c

@@ -389,7 +389,7 @@ ssize_t neu_conn_recv(neu_conn_t *conn, uint8_t *buf, ssize_t len)
                    conn->fd, len, ret, strerror(errno), errno);
     }
 
-    if (errno == EPIPE || ret == -1) {
+    if (errno == EPIPE || ret == -1 || ret == 0) {
         conn_disconnect(conn);
     }
 

src/main.c

@@ -48,6 +48,7 @@ static void sig_handler(int sig)
     }
     zlog_fini();
     exit_flag = true;
+    exit(-1);
 }
 
 static int neuron_run(const neu_cli_args_t *args)