Created
December 14, 2012 05:47
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_ = require 'underscore' | |
http = require 'http' | |
fs = require 'fs' | |
sys = require 'sys' | |
os = require 'os' | |
exec = (require 'child_process').exec | |
udp = require 'dgram' | |
hostname = (require 'os').hostname() | |
iface = 'wlan0' | |
udp_port = 8125 | |
ip_addr = '10.0.0.100' | |
every = (delay, cb) -> | |
setInterval cb, delay*1000 | |
prev_total = prev_idle = 0 | |
every 1, -> | |
fs.readFile '/proc/stat', (err, data) -> | |
send_udp [parse_stat data.toString()] | |
every 1, -> | |
child = exec 'acpi -t', (err, stdout, sdterr) -> | |
send_udp parse_thermal stdout | |
every 60, -> | |
child = exec 'acpi -b', (err, stdout, sdterr) -> | |
send_udp [parse_battery stdout] | |
prev_bytes = {'tx_bytes': null, 'rx_bytes' : null} | |
every 1, -> | |
_.each (_.keys prev_bytes), (f) -> | |
fs.readFile "/sys/class/net/#{iface}/statistics/#{f}", (err, data) -> | |
send_udp [parse_bytes data, f] | |
every 10, -> | |
send_udp [format_output 'used_mem', os.totalmem() - os.freemem(), 'c'] | |
parse_bytes = (data, f) -> | |
bytes = if prev_bytes[f] isnt null then data - prev_bytes[f] else 0 | |
prev_bytes[f] = data | |
format_output f, bytes, 'ms' | |
send_udp = (datas) -> | |
_.each datas, (data) -> | |
msg = new Buffer data | |
console.log data | |
client = udp.createSocket 'udp4' | |
client.send msg, 0, msg.length, udp_port, ip_addr, (err, bytes) -> | |
client.close() | |
calc_load = (total, idle) -> | |
d_total = total - prev_total | |
d_idle = idle - prev_idle | |
prev_total = total | |
prev_idle = idle | |
(d_total - d_idle) / d_total * 100 | |
parse_stat = (data) -> | |
stats = data.match(/^cpu[^0-9]*([ [0-9]*]*).*/)?[1].trim().split ' ' | |
idle = stats[3]*1 | |
total = stats[0..3].reduce (t, s) -> t*1 + s*1 | |
val = calc_load total, idle | |
format_output 'load', val, 'ms' | |
parse_thermal = (data) -> | |
_.map (data.split '\n')[0..-2], (line, i) -> | |
val = (line.split ' ')[3] | |
format_output "therm#{i}", val, 'ms' | |
parse_battery = (data) -> | |
val = (data.split ' ')[3][0..-3] | |
format_output 'battery', val, 'g' | |
format_output = (name, value, type) -> | |
"#{hostname}.#{name}:#{value}|#{type}" |
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