--
-- Convenient functions for HTML output
--
function td(content)
return "| " .. content .. " | "
end
function th(style, content)
if style then
return ""..content.." | "
else
return ""..content.." | "
end
end
function tr(style,...)
if style then
ret = ""
else
ret = "
"
end
for i,s in ipairs(arg) do
ret = ret .. s
end
ret = ret .. "
\n"
return ret
end
function h2(str)
return ""..str.."
\n"
end
-- Formats sensor information to HTML 'tr'
function sensor_to_tr(id,sensor)
return tr(nil,
td(sensor["name"]),
td(sensor["measure_last"]),
td(sensor["measure_min"]),
td(sensor["measure_max"]))
end
-- Formats number of bytes to string
function format_mem_size(bytes)
if (bytes == 0) then
return "0"
end
if (bytes < 1024) then
return bytes .. " o";
end
mo_bytes = 1024 * 1024;
if (bytes < mo_bytes) then
return math.ceil(bytes / 1024) .. " Ko"
end
go_bytes = 1024 * mo_bytes;
if (bytes < go_bytes) then
return math.ceil(bytes / mo_bytes) .. " Mo"
end
return math.ceil(bytes / go_bytes) .. " Go"
end
-- Formats uptime to string
function format_uptime(uptime)
uptime_s = sysinfo["uptime"]%60
uptime_mn = math.floor( (sysinfo["uptime"] / 60) % 60)
uptime_h = math.floor( (sysinfo["uptime"] / (60*60)) % 24)
uptime_d = math.floor(sysinfo["uptime"] / (60*60*24))
return uptime_d .. "d " ..
uptime_h .. "h " ..
string.format("%02.d",uptime_mn) .. "mn " ..
string.format("%02d",uptime_s) .. "s"
end
str = "Psensor Monitoring Server
"
if sysinfo then
--
-- Uptime
--
str = str .. "Uptime: " .. format_uptime(sysinfo["uptime"]) .. "
"
--
-- CPU
--
str = str .. h2("CPU")
str = str .. ""
.. tr("title",
th(nil,"Current usage"),
th(nil,"Load 1mn"),
th(nil,"Load 5mn"),
th(nil,"Load 15mn"))
str = str .. ""
if sysinfo["load"] then
str = str .. td(math.ceil(100*sysinfo["load"]) .. "%")
else
str = str .. td("N/A")
end
str = str .. td(string.format("%.2f",sysinfo["load_1mn"])) ..
td(string.format("%.2f",sysinfo["load_5mn"])) ..
td(string.format("%.2f",sysinfo["load_15mn"])) ..
"
" ..
"
"
--
-- Memory
--
totalram = format_mem_size(sysinfo["totalram"] * sysinfo["mem_unit"])
freeram = format_mem_size(sysinfo["freeram"] * sysinfo["mem_unit"])
sharedram = format_mem_size(sysinfo["sharedram"] * sysinfo["mem_unit"])
bufferram = format_mem_size(sysinfo["bufferram"] * sysinfo["mem_unit"])
usedram = format_mem_size(sysinfo["totalram"] - sysinfo["freeram"])
totalswap = format_mem_size(sysinfo["totalswap"] * sysinfo["mem_unit"])
freeswap = format_mem_size(sysinfo["freeswap"] * sysinfo["mem_unit"])
usedswap = format_mem_size(sysinfo["totalswap"] - sysinfo["freeswap"])
str = str
.. h2("Memory")
.. ""
.. tr("title",
th(nil,""),
th(nil,"Total"),
th(nil,"Used"),
th(nil,"Free"),
th(nil,"Shared"),
th(nil,"Buffer"))
.. tr(nil,
th(nil,"Memory"),
td(totalram),
td(usedram),
td(freeram),
td(sharedram),
td(bufferram))
.. tr(nil,
th(nil,"Swap"),
td(totalswap),
td(usedswap),
td(freeswap))
.. "
"
end
--
-- Sensors
--
if sensors then
str = str .. "Sensors
"
.. ""
.. "| Name | Value | Min | Max |
|---|
"
for i,sensor in ipairs(sensors) do
str = str .. sensor_to_tr(i,sensor)
end
str = str .. "
psensor-server"
end
return str