simple-awesome/widgets/system_resources/system_resources.lua

128 lines
3.4 KiB
Lua

local beautiful = require("beautiful")
local gears = require("gears")
local naughty = require("naughty")
local wibox = require("wibox")
local config = require("../../config")
local inspect = require("../../debug/inspect")
local bar = {
{
{
max_value = 1,
value = 0,
widget = wibox.widget.progressbar,
color = beautiful.system_resources_widget_bar_color,
background_color = beautiful.system_resources_widget_bar_bg,
shape = beautiful.system_resources_widget_bar_shape,
border_color = beautiful.system_resources_widget_border_color,
border_width = beautiful.system_resources_widget_border_width,
},
forced_width = beautiful.system_resources_widget_bar_width,
direction = "east",
layout = wibox.container.rotate,
},
margins = beautiful.system_resources_widget_bar_margin,
widget = wibox.container.margin,
}
local widget = wibox.widget {
bar,
bar,
bar,
layout = wibox.layout.flex.horizontal
}
function readCommand(command)
local handle = io.popen(command, "r")
local r = handle:read("*a")
handle:close()
return r
end
local cpuBar = widget:get_children()[1]:get_children()[1]:get_children()[1]
function getCpuData()
local raw = readCommand("cat /proc/stat | head -n 1")
local data = {raw:match((raw:gsub("[^ ]* ", "([^ ]*) ")))}
return {
user = data[3],
nice = data[4],
system = data[5],
idle = data[6],
iowait = data[7],
irq = data[8],
softirq = data[9],
steal = data[10],
}
end
local lastCpuTime = -1
local lastCpuIdle = -1
gears.timer {
timeout = config.system_resources_widget_refresh_interval,
call_now = true,
autostart = true,
callback = function()
local data = getCpuData()
local currentCpuTime = data.user + data.nice + data.system + data.idle + data.iowait + data.irq + data.softirq + data.steal
local currentCpuIdle = data.idle + data.iowait
if(lastCpuTime >= 0) then
cpuBar.value = 1 - (currentCpuIdle - lastCpuIdle) / (currentCpuTime - lastCpuTime)
end
lastCpuTime = currentCpuTime
lastCpuIdle = currentCpuIdle
end
}
local memoryBar = widget:get_children()[2]:get_children()[1]:get_children()[1]
function getTotalMemory()
return readCommand("cat /proc/meminfo | grep MemTotal | awk '{print $2}'")
end
function getAvailableMemory()
return readCommand("cat /proc/meminfo | grep MemAvailable | awk '{print $2}'")
end
function getFreeMemory()
return readCommand("cat /proc/meminfo | grep MemFree | awk '{print $2}'")
end
gears.timer {
timeout = config.system_resources_widget_refresh_interval,
call_now = true,
autostart = true,
callback = function()
memoryBar.value = 1 - getAvailableMemory() / getTotalMemory()
end
}
local swapBar = widget:get_children()[3]:get_children()[1]:get_children()[1]
function getTotalSwap()
return readCommand("cat /proc/meminfo | grep SwapTotal | awk '{print $2}'")
end
function getFreeSwap()
return readCommand("cat /proc/meminfo | grep SwapFree | awk '{print $2}'")
end
gears.timer {
timeout = config.system_resources_widget_refresh_interval,
call_now = true,
autostart = true,
callback = function()
swapBar.value = 1 - getFreeSwap() / getTotalSwap()
end
}
return {
widget = widget
}