class Deamons::SimpleMm

Simple process to add wash trades to a market in order to simulate trade matching for QA and dev

Public Class Methods

new(api, market) click to toggle source
# File lib/Deamons/simple_mm.rb, line 8
def initialize(api, market)
  @order_book = { bids: [], asks: [] }
  @api = api
  @market = market
  Process.fork do
    Process.daemon(true)
    pid = Process.pid
    redirect("#{pid}.outfile", "#{pid}.errfile")
    write_pid_file(pid, "#{pid}.pid")
    start
  end
  puts "SimBot started on #{market} @ freq"
end

Public Instance Methods

populate_order_book(data) click to toggle source
# File lib/Deamons/simple_mm.rb, line 36
def populate_order_book(data)
  range = 499
  nums = (0..range).to_a.shuffle
  for i in (0..range)
    ord = data[:bids][nums[i]]
    txID = JSON.parse(@api.post_order(@market, ord[0].to_f, ord[1].to_f / 1000, 'buy'))
    puts txID
    ord.push(txID['id'])
    @api.cancel_order(@order_book[:bids][nums[i]][-1]) if @order_book[:bids].size > 400
    ord = data[:asks][nums[i]]
    txID = JSON.parse(@api.post_order(@market, ord[0].to_f, ord[1].to_f / 1000, 'sell'))
    ord.push(txID['id'])
    @api.cancel_order(@order_book[:asks][nums[i]][-1]) if @order_book[:asks].size > 400
    sleep(0.1)
  end
  @order_book = data
  puts data.inspect
end
redirect(outfile, errfile) click to toggle source

Send stdout and stderr to log files for the child process @param [String] outfile @param [String] errfile @return [TrueClass]

# File lib/Deamons/simple_mm.rb, line 72
def redirect(outfile, errfile)
  $stdin.reopen '/dev/null'
  out = File.new outfile, "a"
  err = File.new errfile, "a"
  $stdout.reopen out
  $stderr.reopen err
  $stdout.sync = $stderr.sync = true
end
start() click to toggle source
# File lib/Deamons/simple_mm.rb, line 22
def start
  count = 0
  puts "--------#{@market} -------"
  loop do
    data = Utils.binance_order_book
    populate_order_book(data)
    count += 1
  rescue ::StandardError => e
    STDERR.puts e.backtrace
    STDERR.puts '\n'
    next
  end
end
write_pid_file(pid, pidfile) click to toggle source

Attempts to write the pid of the forked process to the pid file. @param [Integer] pid @param [String] pidfile @return [Integer and File]

# File lib/Deamons/simple_mm.rb, line 59
def write_pid_file(pid, pidfile)
  File.open pidfile, "w" do |f|
    f.write pid
  end
rescue ::Exception => e
  $stderr.puts "While writing the PID to file, unexpected #{e.class}: #{e}"
  Process.kill "HUP", pid
end