Make helpers.sysctl_async cross-platform & let bat_openbsd use it (#93)
This commit is contained in:
Enric Morales
Nguyễn Gia Phong
parent
ee970d0c68
commit
1277889978
25
helpers.lua
25
helpers.lua
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@ -31,6 +31,7 @@
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local ipairs = ipairs
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local pairs = pairs
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local rawget = rawget
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local require = require
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@ -274,9 +275,29 @@ function helpers.sysctl_async(path_table, parse)
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spawn.with_line_callback("sysctl " .. path, {
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stdout = function (line)
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if not string.find(line, "sysctl: unknown oid") then
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local key, value = string.match(line, "(.+): (.+)")
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local separators = {
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freebsd = ": ",
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linux = " = ",
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openbsd = "="
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}
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local pattern = ("(.+)%s(.+)"):format(separators[helpers.getos()])
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local key, value = string.match(line, pattern)
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ret[key] = value
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end,
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stderr = function (line)
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local messages = {
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openbsd = { "level name .+ in (.+) is invalid" },
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linux = { "cannot stat /proc/sys/(.+):",
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"permission denied on key '(.+)'" },
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freebsd = { "unknown oid '(.+)'" }
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}
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for _, error_message in ipairs(messages[helpers.getos()]) do
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local key = line:match(error_message)
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if key then
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key = key:gsub("/", ".")
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ret[key] = "N/A"
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end
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end
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end,
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output_done = function () parse(ret) end
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@ -18,68 +18,77 @@
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local pairs = pairs
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local tonumber = tonumber
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local math = { floor = math.floor, modf = math.modf }
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local table = {
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insert = table.insert
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}
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local helpers = require"vicious.helpers"
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local spawn = require"vicious.spawn"
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local math = {
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floor = math.floor,
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modf = math.modf
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}
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local helpers = require("vicious.helpers")
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-- }}}
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local STATES = { [0] = "↯", -- not charging
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local bat_openbsd = {}
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function bat_openbsd.async(format, warg, callback)
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local battery_id = warg or "bat0"
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local fields = {
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charging_rate = ("hw.sensors.acpi%s.power0"):format(battery_id),
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last_full_capacity = ("hw.sensors.acpi%s.watthour0"):format(battery_id),
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remaining_capacity = ("hw.sensors.acpi%s.watthour3"):format(battery_id),
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design_capacity = ("hw.sensors.acpi%s.watthour4"):format(battery_id),
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state = ("hw.sensors.acpi%s.raw0"):format(battery_id)
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}
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local sysctl_args = {}
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for _, v in pairs(fields) do table.insert(sysctl_args, v) end
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local battery = {}
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helpers.sysctl_async(sysctl_args, function (ret)
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for k, v in pairs(fields) do
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-- discard the description that comes after the values
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battery[k] = tonumber(ret[v]:match("(.-) "))
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end
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local states = {
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[0] = "↯", -- not charging
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[1] = "-", -- discharging
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[2] = "!", -- critical
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[3] = "+", -- charging
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[4] = "N/A", -- unknown status
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[255] = "N/A" } -- unimplemented by the driver
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[255] = "N/A" -- unimplemented by the driver
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}
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local state = states[battery.state]
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return helpers.setasyncall{
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async = function (format, warg, callback)
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local filter = "hw.sensors.acpi" .. (warg or "bat0")
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local pattern = filter .. ".(%S+)=(%S+)"
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local bat_info = {}
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local charge = tonumber(battery.remaining_capacity
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/ battery.last_full_capacity * 100)
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spawn.with_line_callback_with_shell(
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("sysctl -a | grep '^%s'"):format(filter),
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{ stdout = function (line)
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for key, value in line:gmatch(pattern) do
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bat_info[key] = value
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end
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end,
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output_done = function ()
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-- current state
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local state = STATES[tonumber(bat_info.raw0)]
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-- battery capacity in percent
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local percent = tonumber(
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bat_info.watthour3 / bat_info.watthour0 * 100)
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local time
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if tonumber(bat_info.power0) < 1 then
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time = "∞"
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local remaining_time
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if battery.charging_rate < 1 then
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remaining_time = "∞"
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else
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local raw_time = bat_info.watthour3 / bat_info.power0
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local raw_time = battery.remaining_capacity / battery.rate
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local hours, hour_fraction = math.modf(raw_time)
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local minutes = math.floor(60 * hour_fraction)
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time = ("%d:%0.2d"):format(hours, minutes)
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remaining_time = ("%d:%0.2d"):format(hours, minutes)
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end
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-- calculate wear level from (last full / design) capacity
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local wear = "N/A"
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if bat_info.watthour0 and bat_info.watthour4 then
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local l_full = tonumber(bat_info.watthour0)
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local design = tonumber(bat_info.watthour4)
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wear = math.floor(l_full / design * 100)
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end
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-- dis-/charging rate as presented by battery
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local rate = bat_info.power0
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local wear = math.floor(battery.last_full_capacity,
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battery.design_capacity)
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-- Pass the following arguments to callback function:
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-- * battery state symbol (↯, -, !, + or N/A)
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-- * remaining_capacity (in percent)
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-- * remaining_time, by battery
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-- * remaining capacity (in percent)
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-- * remaining time, as reported by the battery
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-- * wear level (in percent)
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-- * present_rate (in Watts)
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callback{state, percent, time, wear, rate}
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end })
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end }
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-- * present_rate (in Watts/hour)
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return callback({ state, charge, remaining_time,
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wear, battery.charging_rate })
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end)
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end
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return helpers.setasyncall(bat_openbsd)
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