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Contents
# frozen_string_literal: true
module Deamons
# Simple process to add wash trades to a market in order to simulate trade matching for QA and dev
class Ngrok
require 'utils'
def initialize
Process.fork do
Process.daemon(true)
pid = Process.pid
redirect("#{pid}.outfile", "#{pid}.errfile")
write_pid_file(pid, "#{pid}.pid")
start
end
puts "Starting Ngrok..."
end
def start
cmd = "#{ENV.fetch('NGROK')}./ngrok http 8545"
system(cmd)
rescue ::StandardError => e
STDERR.puts e.backtrace
STDERR.puts '\n'
end
# Attempts to write the pid of the forked process to the pid file.
# @param [Integer] pid
# @param [String] pidfile
# @return [Integer and File]
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
# Send stdout and stderr to log files for the child process
# @param [String] outfile
# @param [String] errfile
# @return [TrueClass]
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
end
end
Version data entries
14 entries across 14 versions & 1 rubygems