/* ** Zabbix ** Copyright (C) 2001-2022 Zabbix SIA ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. **/ package postgres import ( "context" "errors" "git.zabbix.com/ap/plugin-support/zbxerr" "github.com/jackc/pgx/v4" ) // uptimeHandler finds difference btw current time and // postmaster start time and returns int64 if all is OK or nil otherwise. func uptimeHandler(ctx context.Context, conn PostgresClient, _ string, _ map[string]string, _ ...string) (interface{}, error) { var uptime float64 query := `SELECT date_part('epoch', now() - pg_postmaster_start_time());` row, err := conn.QueryRow(ctx, query) if err != nil { return nil, zbxerr.ErrorCannotFetchData.Wrap(err) } err = row.Scan(&uptime) if err != nil { if errors.Is(err, pgx.ErrNoRows) { return nil, zbxerr.ErrorEmptyResult.Wrap(err) } return nil, zbxerr.ErrorCannotFetchData.Wrap(err) } return uptime, nil }