Class: GamespyQuery::SocketMaster

Inherits:
Base
  • Object
show all
Defined in:
lib/gamespy_query/socket_master.rb

Overview

Provides mass processing of Gamespy UDP sockets, by using Socket/IO select

Constant Summary

FILL_UP_ON_SPACE =

Should the current queue be extended to the maximum amount of connections, or should the queue be emptied first, before adding more?

true
DEFAULT_MAX_CONNECTIONS =

Default maximum concurrent connections

128

Constants included from Funcs

Funcs::RX_F, Funcs::RX_I, Funcs::RX_S

Instance Attribute Summary (collapse)

Class Method Summary (collapse)

Instance Method Summary (collapse)

Methods included from Funcs

#clean, #encode_string, #handle_chr, #strip_tags

Constructor Details

- (SocketMaster) initialize(addrs)

Initializes the object

Parameters:

  • addrs (Array) —

    List of addresses to process



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# File 'lib/gamespy_query/socket_master.rb', line 19

def initialize addrs
  @addrs = addrs

  @timeout, @max_connections = Socket::DEFAULT_TIMEOUT, DEFAULT_MAX_CONNECTIONS # Per select iteration
end

Instance Attribute Details

- (Object) max_connections

Configurable max concurrenct connections



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# File 'lib/gamespy_query/socket_master.rb', line 15

def max_connections
  @max_connections
end

- (Object) timeout

Configurable timeout in seconds



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# File 'lib/gamespy_query/socket_master.rb', line 12

def timeout
  @timeout
end

Class Method Details

+ (Object) process_master(game = "arma2oapc", geo = nil, remote = nil)

Fetch the gamespy master browser list Connect to each individual server to receive player data etc

Parameters:

  • game (String) (defaults to: "arma2oapc") —

    Game to fetch info from

  • geo (String) (defaults to: nil) —

    Geo location enabled?

  • remote (Array) (defaults to: nil) —

    Hostname and path+filename strings if the list needs to be fetched from http server



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# File 'lib/gamespy_query/socket_master.rb', line 76

def process_master(game = "arma2oapc", geo = nil, remote = nil)
  master = GamespyQuery::Master.new(geo, game)
  list = if remote
           Net::HTTP.start(remote[0]) do |http|
             resp = http.get(remote[1])
             resp.body.split("\n")
           end
         else
           master.get_server_list(nil, true, geo)
         end

  dat = master.process list

  sm = GamespyQuery::SocketMaster.new(dat.keys)
  sockets = sm.process!
  sockets.select{|s| s.valid? }.each do |s|
    begin
      data = dat[s.addr]
      data[:ip], data[:port] = s.addr.split(":")
      data[:gamename] = game
      data[:gamedata].merge!(s.sync(s.data))
    rescue => e
      Tools.log_exception e
    end
  end

  dat.values
end

Instance Method Details

- (Object) process!

Process the list of addresses



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# File 'lib/gamespy_query/socket_master.rb', line 26

def process!
  sockets = []

  until @addrs.empty?
    addrs = @addrs.shift @max_connections
    queue = addrs.map { |addr| Socket.new(addr) }

    sockets += queue

    until queue.empty?
      # Fill up the Sockets pool until max_conn
      if FILL_UP_ON_SPACE && queue.size < @max_connections
        addrs = @addrs.shift (@max_connections - queue.size)
        socks = addrs.map { |addr| Socket.new(addr) }

        queue += socks
        sockets += socks
      end

      write_sockets, read_sockets = queue.reject {|s| s.valid? }.partition {|s| s.handle_state }

      unless ready = IO.select(read_sockets, write_sockets, nil, @timeout)
        Tools.logger.warn "Timeout, no usable sockets in current queue, within timeout period (#{@timeout}s)"
        queue.each{|s| s.close unless s.closed?}
        queue = []
        next
      end

      Tools.debug {"Sockets: #{queue.size}, AddrsLeft: #{@addrs.size}, ReadReady: #{"#{ready[0].size} / #{read_sockets.size}, WriteReady: #{ready[1].size} / #{write_sockets.size}, ExcReady: #{ready[2].size} / #{queue.size}" unless ready.nil?}"}

      # Read
      ready[0].each { |s| queue.delete(s) unless s.handle_read() }

      # Write
      ready[1].each { |s| queue.delete(s) unless s.handle_write() }

      # Exceptions
      #ready[2].each { |s| queue.delete(s) unless s.handle_exc }
    end
  end

  return sockets
end