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mirror of https://github.com/koreader/koreader synced 2024-11-16 06:12:56 +00:00
koreader/plugins/systemstat.koplugin/main.lua
Hzj_jie 999898fa69 Merge various information into systemstat (#2764)
* Merge various information to systemstat
2017-04-14 21:12:28 +02:00

275 lines
8.0 KiB
Lua

local Device = require("device")
local KeyValuePage = require("ui/widget/keyvaluepage")
local UIManager = require("ui/uimanager")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local util = require("util")
local _ = require("gettext")
local SystemStat = {
start_sec = os.time(),
suspend_sec = nil,
resume_sec = nil,
wakeup_count = 0,
sleep_count = 0,
charge_count = 0,
discharge_count = 0,
}
function SystemStat:init()
if Device:isKobo() or Device:isPocketBook() then
self.storage_filter = "mmcblk"
elseif Device:isKindle() then
self.storage_filter = "' /mnt/us$'"
elseif Device:isSDL() then
self.storage_filter = "/dev/sd"
end
end
function SystemStat:put(p)
table.insert(self.kv_pairs, p)
end
function SystemStat:appendCounters()
self:put({_("KOReader Started at"), os.date("%c", self.start_sec)})
if self.suspend_sec then
self:put({_(" Last suspend time"), os.date("%c", self.suspend_sec)})
end
if self.resume_sec then
self:put({_(" Last resume time"), os.date("%c", self.resume_sec)})
end
self:put({_(" Up hours"),
string.format("%.2f", os.difftime(os.time(), self.start_sec) / 60 / 60)})
self:put({_("Counters"), ""})
self:put({_(" wake-ups"), self.wakeup_count})
self:put({_(" sleeps"), self.sleep_count})
self:put({_(" charge cycles"), self.charge_count})
self:put({_(" discharge cycles"), self.discharge_count})
end
local function systemInfo()
local result = {}
do
local stat = io.open("/proc/stat", "r")
if stat ~= nil then
for line in util.gsplit(stat:read("*all"), "\n", false) do
local t = util.splitToArray(line, " ")
if #t >= 5 and string.lower(t[1]) == "cpu" then
local n1, n2, n3, n4
n1 = tonumber(t[2])
n2 = tonumber(t[3])
n3 = tonumber(t[4])
n4 = tonumber(t[5])
if n1 ~= nil and n2 ~= nil and n3 ~= nil and n4 ~= nil then
result.cpu = {
user = n1,
nice = n2,
system = n3,
idle = n4,
total = n1 + n2 + n3 + n4
}
break
end
end
end
stat:close()
end
end
do
local meminfo = io.open("/proc/meminfo", "r")
if meminfo ~= nil then
result.memory = {}
for line in util.gsplit(meminfo:read("*all"), "\n", false) do
local t = util.splitToArray(line, " ")
if #t >= 2 then
if string.lower(t[1]) == "memtotal:" then
local n = tonumber(t[2])
if n ~= nil then
result.memory.total = n
end
elseif string.lower(t[1]) == "memfree:" then
local n = tonumber(t[2])
if n ~= nil then
result.memory.free = n
end
elseif string.lower(t[1]) == "memavailable:" then
local n = tonumber(t[2])
if n ~= nil then
result.memory.available = n
end
end
end
end
meminfo:close()
end
end
return result
end
function SystemStat:appendSystemInfo()
local stat = systemInfo()
if stat.cpu ~= nil then
self:put({_("System information"), ""})
self:put({_(" Total ticks (million)"),
string.format("%.2f", stat.cpu.total / 1000000)})
self:put({_(" Idle ticks (million)"),
string.format("%.2f", stat.cpu.idle / 1000000)})
self:put({_(" Processor usage %"),
string.format("%.2f", (1 - stat.cpu.idle / stat.cpu.total) * 100)})
end
if stat.memory ~= nil then
if stat.memory.total ~= nil then
self:put({_(" Total memory (MB)"),
string.format("%.2f", stat.memory.total / 1024)})
end
if stat.memory.free ~= nil then
self:put({_(" Free memory (MB)"),
string.format("%.2f", stat.memory.free / 1024)})
end
if stat.memory.available ~= nil then
self:put({_(" Available memory (MB)"),
string.format("%.2f", stat.memory.available / 1024)})
end
end
end
function SystemStat:appendProcessInfo()
local stat = io.open("/proc/self/stat", "r")
if stat == nil then return end
local t = util.splitToArray(stat:read("*all"), " ")
stat:close()
local n1, n2
if #t == 0 then return end
self:put({_("Process"), ""})
self:put({_(" ID"), t[1]})
if #t < 14 then return end
n1 = tonumber(t[14])
n2 = tonumber(t[15])
if n1 ~= nil then
if n2 ~= nil then
n1 = n1 + n2
end
local sys_stat = systemInfo()
if sys_stat.cpu ~= nil and sys_stat.cpu.total ~= nil then
self:put({_(" Processor usage %"),
string.format("%.2f", n1 / sys_stat.cpu.total * 100)})
else
self:put({_(" Processor usage ticks (million)"), n1 / 1000000})
end
end
if #t < 20 then return end
n1 = tonumber(t[20])
if n1 ~= nil then
self:put({_(" Threads"), tostring(n1)})
end
if #t < 23 then return end
n1 = tonumber(t[23])
if n1 ~= nil then
self:put({_(" Virtual memory (MB)"), string.format("%.2f", n1 / 1024 / 1024)})
end
if #t < 24 then return end
n1 = tonumber(t[24])
if n1 ~= nil then
self:put({_(" RAM usage (MB)"), string.format("%.2f", n1 / 256)})
end
end
function SystemStat:appendStorageInfo()
if self.storage_filter == nil then return end
local std_out = io.popen(
"df -h | sed -r 's/ +/ /g' | grep " .. self.storage_filter ..
" | sed 's/ /\\t/g' | cut -f 2,4,5,6"
)
if not std_out then return end
self:put({_("Storage information"), ""})
for line in util.gsplit(std_out:read("*all"), "\n", false) do
local t = util.splitToArray(line, "\t")
if #t ~= 4 then
self:put({_(" Unexpected"), line})
else
self:put({_(" Mount point"), t[4]})
self:put({_(" Available"), t[2]})
self:put({_(" Total"), t[1]})
self:put({_(" Used percentage"), t[3]})
end
end
std_out:close()
end
function SystemStat:onSuspend()
self.suspend_sec = os.time()
self.sleep_count = self.sleep_count + 1
end
function SystemStat:onResume()
self.resume_sec = os.time()
self.wakeup_count = self.wakeup_count + 1
end
function SystemStat:onCharging()
self.charge_count = self.charge_count + 1
end
function SystemStat:onNotCharging()
self.discharge_count = self.discharge_count + 1
end
function SystemStat:showStatistics()
self.kv_pairs = {}
self:appendCounters()
self:appendProcessInfo()
self:appendStorageInfo()
self:appendSystemInfo()
UIManager:show(KeyValuePage:new{
title = _("System statistics"),
kv_pairs = self.kv_pairs,
})
end
SystemStat:init()
local SystemStatWidget = WidgetContainer:new{
name = "systemstat",
}
function SystemStatWidget:init()
self.ui.menu:registerToMainMenu(self)
end
function SystemStatWidget:addToMainMenu(menu_items)
menu_items.system_statistics = {
text = _("System statistics"),
callback = function()
SystemStat:showStatistics()
end,
}
end
function SystemStatWidget:onSuspend()
SystemStat:onSuspend()
end
function SystemStatWidget:onResume()
SystemStat:onResume()
end
function SystemStatWidget:onCharging()
SystemStat:onCharging()
end
function SystemStatWidget:onNotCharging()
SystemStat:onNotCharging()
end
return SystemStatWidget