#!/usr/bin/env python3 # # Copyright (C) 2021-2022 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as # published by the Free Software Foundation. # # 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, see <http://www.gnu.org/licenses/>. # import sys import vyos.opmode def _get_raw_data(): from re import search as re_search def find_value(keyword, mem_data): regex = keyword + ':\s+(\d+)' res = re_search(regex, mem_data).group(1) return int(res) with open("/proc/meminfo", "r") as f: mem_data = f.read() total = find_value('MemTotal', mem_data) available = find_value('MemAvailable', mem_data) buffers = find_value('Buffers', mem_data) cached = find_value('Cached', mem_data) used = total - available mem_data = { "total": total, "free": available, "used": used, "buffers": buffers, "cached": cached } for key in mem_data: # The Linux kernel exposes memory values in kilobytes, # so we need to normalize them mem_data[key] = mem_data[key] * 1024 return mem_data def _get_formatted_output(mem): from vyos.util import bytes_to_human # For human-readable outputs, we convert bytes to more convenient units # (100M, 1.3G...) for key in mem: mem[key] = bytes_to_human(mem[key]) out = "Total: {}\n".format(mem["total"]) out += "Free: {}\n".format(mem["free"]) out += "Used: {}".format(mem["used"]) return out def show(raw: bool): ram_data = _get_raw_data() if raw: return ram_data else: return _get_formatted_output(ram_data) if __name__ == '__main__': try: res = vyos.opmode.run(sys.modules[__name__]) if res: print(res) except (ValueError, vyos.opmode.Error) as e: print(e) sys.exit(1)