| /* Simple Osmocom System Monitor (osysmon): Support for uptime/load/ram */ |
| |
| /* (C) 2018 by Harald Welte <laforge@gnumonks.org> |
| * All Rights Reserved. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * 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. |
| */ |
| |
| #include <string.h> |
| #include <sys/sysinfo.h> |
| |
| #include <osmocom/vty/vty.h> |
| #include <osmocom/vty/command.h> |
| |
| #include "osysmon.h" |
| #include "value_node.h" |
| |
| /*********************************************************************** |
| * Runtime Code |
| ***********************************************************************/ |
| |
| /* called once on startup before config file parsing */ |
| int osysmon_sysinfo_init() |
| { |
| return 0; |
| } |
| |
| static float loadfac(unsigned long in) { |
| return in/65536.0; |
| } |
| |
| #define to_mbytes(in) ((in)/((1024*1024)/si.mem_unit)) |
| |
| #define SECS_PER_MIN 60UL |
| #define MINS_PER_HOUR 60UL |
| #define HOURS_PER_DAY 24UL |
| |
| #define to_days(in) ((in)/(SECS_PER_MIN*MINS_PER_HOUR*HOURS_PER_DAY)) |
| #define to_hours(in) (((in)/(SECS_PER_MIN*MINS_PER_HOUR))%HOURS_PER_DAY) |
| #define to_minutes(in) (((in)/(SECS_PER_MIN))%MINS_PER_HOUR) |
| #define to_seconds(in) ((in)%SECS_PER_MIN) |
| |
| /* called periodically */ |
| int osysmon_sysinfo_poll(struct value_node *parent) |
| { |
| struct sysinfo si; |
| struct value_node *vn_sysinfo; |
| char buf[32]; |
| int rc; |
| |
| vn_sysinfo = value_node_add(parent, "sysinfo", NULL); |
| |
| rc = sysinfo(&si); |
| if (rc < 0) |
| return rc; |
| |
| /* Load Factor 1/5/15min */ |
| snprintf(buf, sizeof(buf), "%.2f/%.2f/%.2f", |
| loadfac(si.loads[0]), loadfac(si.loads[1]), loadfac(si.loads[2])); |
| value_node_add(vn_sysinfo, "load", buf); |
| |
| /* RAM information (total/free/sared) in megabytes */ |
| snprintf(buf, sizeof(buf), "%lu/%lu/%lu", |
| to_mbytes(si.totalram), to_mbytes(si.freeram), to_mbytes(si.sharedram)); |
| value_node_add(vn_sysinfo, "ram", buf); |
| |
| /* uptime in days/hours/minutes/seconds */ |
| snprintf(buf, sizeof(buf), "%lud %02lu:%02lu:%02lu", to_days(si.uptime), |
| to_hours(si.uptime), to_minutes(si.uptime), to_seconds(si.uptime)); |
| value_node_add(vn_sysinfo, "uptime", buf); |
| |
| return 0; |
| } |