kachayev

sudo bash

cd /usr/local/lib
wget http://launchpad.net/gearmand/trunk/0.18/+download/gearmand-0.18.tar.gz
tar -xvzf gearmand-0.18.tar.gz
cd gearmand-0.18/
apt-get install libboost-program-options-dev uuid-dev libevent-dev build-essential g++
./configure && sudo make && sudo make install
ldconfig

kachayev

import sys
import os
import time
import errno
import xmlrpclib
import socket

class Package(object):
    '''Install python packages with using setup.py install'''

kachayev

"""Simple TCP server for playing Tic-Tac-Toe game.

Use Player-to-Player game mode based on naming auth. 
No thoughts about distribution or pub/sub mode 
(for monitoring or something like this). Just 
basic functionality.
"""

import time
import logging

kachayev

// Channels-driven concurrency with Go
// Code examples from Rob Pike's talk on Google I/O 2012:
// http://www.youtube.com/watch?v=f6kdp27TYZs&feature=youtu.be
//
// Concurrency is the key to designing high performance network services. 
// Go's concurrency primitives (goroutines and channels) provide a simple and efficient means 
// of expressing concurrent execution. In this talk we see how tricky concurrency 
// problems can be solved gracefully with simple Go code.

// (1) Generator: function that returns the channel

kachayev

;; Channels-driven concurrency with Clojure
;; Clojure variant for code examples from this gist:
;; https://gist.github.com/3124594
;; Primarily taken from Rob Pike's talk on Google I/O 2012:
;; http://www.youtube.com/watch?v=f6kdp27TYZs&feature=youtu.be
;;
;; Concurrency is the key to designing high performance network services. 
;; Clojure provides several concurrency primitives, like futures/promises, atom, agent etc.
;; There is no implementation for "Go channels" in core, but we can use
;; 3rd-party library Lamina to do the same things.

kachayev

(def open-for-business? (atom true))
(def haircut-count (agent 0))
(def waiting-room (ref []))
(def waiting-room-size 3)

(defn open-shop [duration]
  (do (Thread/sleep duration) (swap! open-for-business? not)))
 
(defn add-customers []
  (future

kachayev

## Author: Alexey Kachayev
## Email: kachayev@gmail.com
## Talk: "Functional programming with Python", UA PyCon 2012
## URL: http://ua.pycon.org/static/talks/kachayev/index.html#/

###############################################
## Imitate dictionary functionality
###############################################

def dict_pair((key, value)):

kachayev

$ clj
Clojure 1.4.0
user=> ;; atoms - synchronous sharing state changes
user=> (def w (atom 0))
#'user/w
user=> (swap! w inc)
1
user=> @w
1
user=> (swap! w #(* % 100))

kachayev

-module(barber).
-export([run/2, barber/1, clients/1, simulator/2]).

-define(CUT_DUTAION, 20).

run(RoomSize, Duration) ->
    % create barber
    BPid = spawn(?MODULE, barber, [?CUT_DUTAION]),
    % run simulartor with barber PID
    SPid = spawn(?MODULE, simulator, [BPid, RoomSize]),

kachayev

package main

import (
    "fmt"
    "time"
    "math/rand"
)

const (
    CUTTING_TIME = 20