logrusorgru

package main

import (
	"image"
	"image/png"
	"log"
	"os"
	"time"

	"golang.org/x/image/draw"

logrusorgru

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
--                                                                            --
--                                  mysql                                     --
--                                                                            --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

--
-- mysql <http://sqlfiddle.com/#!9/91afb5/2>
--        note: sqlfiddle is very stupid

logrusorgru

%YAML 1.2
---
# See http://www.sublimetext.com/docs/3/syntax.html
file_extensions:
  - S
scope: source.S
contexts:
  main:

    # comment multiline

logrusorgru

//
// Copyright (c) 2018 Konstanin Ivanov <kostyarin.ivanov@gmail.com>.
// All rights reserved. This program is free software. It comes without
// any warranty, to the extent permitted by applicable law. You can
// redistribute it and/or modify it under the terms of the Do What
// The Fuck You Want To Public License, Version 2, as published by
// Sam Hocevar. See below for more details.
//

logrusorgru

Functional options: https://gist.github.com/travisjeffery/8265ca411735f638db80e2e34bdbd3ae

In real world we need to validate input. This functional options kills global namespace. Take a look my average config:

import (
   "domain.tld/user/log"
)

// default configs

logrusorgru

all: clean build run

build:
	gcc -nostdlib -Wall -shared -fPIC hello_exit.S -Wl,-soname,libhelloexit.so.1 -o libhelloexit.so.1.0
	ln -sv libhelloexit.so.1.0 libhelloexit.so.1
	ln -sv libhelloexit.so.1.0 libhelloexit.so
	gcc -nostdlib -Wall -L. -I. hello.c -lhelloexit -Wl,-rpath,. -o hello
	@echo Done

run:

logrusorgru

Rails - How to check for online users? Redis.

Init Redis

   # config/initializers/redis.rb
    
   $redis_onlines = Redis.new
   # it's the simplest way, but i'd recommend:
   # $redis_onlines = Redis.new path: "/tmp/redis.sock", db: 15, driver: :hiredis

logrusorgru

Intro

Reference valyala/fasthttp#1014

Outro

Don't forget about collisions problem.

logrusorgru

package pool

import (
	"sync"
	"testing"
	"time"
)

// perform:
// go test -bench syncPool

logrusorgru

type MessengerFactory struct {
    factory.MessengerFactory
    isInitialized bool
}

func (m *MessengerFactory) IsInitialized() bool { return m.isInitialized }

func (m *MessengerFactory) Connect(address string) (conn *Connection, err error) {
    return m.ConnectWithConfig(address, nil)
}