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-- CPU usage widget type for FreeBSD
-- Copyright (C) 2017,2019 mutlusun <mutlusun@github.com>
-- Copyright (C) 2019 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
--
-- This file is part of Vicious.
--
-- Vicious 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.
--
-- Vicious 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 Vicious. If not, see <https://www.gnu.org/licenses/>.
-- {{{ Grab environment
local math = { floor = math.floor }
local string = { gmatch = string.gmatch }
local helpers = require("vicious.helpers")
-- }}}
-- Cpu: provides CPU usage for all available CPUs/cores
-- vicious.widgets.cpu_freebsd
local cpu_freebsd = {}
-- Initialize function tables
local cpu_total = {}
local cpu_idle = {}
-- {{{ CPU widget type
function cpu_freebsd.async(format, warg, callback)
local matches = {}
local tmp_total = {}
local tmp_idle = {}
local tmp_usage = {}
helpers.sysctl_async({ "kern.cp_times" }, function(ret)
-- Read input data
for v in string.gmatch(ret["kern.cp_times"], "([%d]+)") do
table.insert(matches, v)
end
-- Set first value of function tables
if #cpu_total == 0 then -- check for empty table
for i = 1, #matches / 5 + 1 do
cpu_total[i] = 0
cpu_idle[i] = 0
end
end
for i = 1, #matches / 5 + 1 do
tmp_total[i] = 0
tmp_idle[i] = 0
tmp_usage[i] = 0
end
-- CPU usage
for i, v in ipairs(matches) do
local index = math.floor((i-1) / 5) + 2 -- current cpu
tmp_total[1] = tmp_total[1] + v
tmp_total[index] = tmp_total[index] + v
if (i-1) % 5 == 4 then
tmp_idle[1] = tmp_idle[1] + v
tmp_idle[index] = tmp_idle[index] + v
end
end
for i = 1, #tmp_usage do
tmp_usage[i] = tmp_total[i] - cpu_total[i]
tmp_usage[i] = math.floor(
(tmp_usage[i] - (tmp_idle[i] - cpu_idle[i]))
/ tmp_usage[i] * 100)
end
cpu_total = tmp_total
cpu_idle = tmp_idle
return callback(tmp_usage)
end)
end
-- }}}
return helpers.setasyncall(cpu_freebsd)
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