........S. [ZBXNEXT-6140] added time period addition/subtraction functions, test suite for time period addition

1 files changed, 30 insertions, 0 deletions

diff --git a/include/zbxtrends.h b/include/zbxtrends.h
new file mode 100644
index 00000000000..3a99296f7da
--- /dev/null
+++ b/include/zbxtrends.h
@@ -0,0 +1,30 @@
+/*
+** Zabbix
+** Copyright (C) 2001-2020 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.
+**/
+
+
+#ifndef ZABBIX_ZBXTRENDS_H
+#define ZABBIX_ZBXTRENDS_H
+
+#include "common.h"
+
+int	zbx_trends_parse_base(const char *period_shift, zbx_time_unit_t *base, char **error);
+
+int	zbx_trends_parse_range(const char *period, const char *period_shift, int *start, int *end, char **error);
+
+#endif