Ginger Old laoshaw

## getting-started.md

      
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                laoshaw
                / getting-started.md
            
            
              Created
              August 27, 2016 02:58
                — forked from joepie91/getting-started.md
            
              
                Getting started with Node.js
              
          
    "How do I get started with Node?" is a commonly heard question in #Node.js. This gist is an attempt to compile some of the answers to that question.
And if this list didn't quite answer your questions, I'm available for tutoring and code review! A donation is also welcome :)
Javascript refresher

Especially if you normally use a different language, or you only use Javascript occasionally, it's easy to misunderstand some of the aspects of the language.
These links will help you refresh your knowledge of JS, and make sure that you understand the OOP model correctly.

  
## dl-file.php
<?php
/*
 * dl-file.php
 *
 * Protect uploaded files with login.
 *
 * @link http://wordpress.stackexchange.com/questions/37144/protect-wordpress-uploads-if-user-is-not-logged-in
 *
 * @author hakre <http://hakre.wordpress.com/>
 * @license GPL-3.0+

## gist:6c09a319f1104d5e311eaf47b2fc2a1d

      
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                laoshaw
                / gist:6c09a319f1104d5e311eaf47b2fc2a1d
            
            
              Created
              May 23, 2017 19:14
                — forked from hiroyuki-sato/gist:201032fe75d2cf9f5801
            
              
                Build VyOS image image on Debian Jessie environment.
              
          
    Overview

Build VyOS image image on Debian Jessie environment.
Install Debian jessie

Install Debian jessie.

Jessie ISO


## index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Bin</title>
<style id="jsbin-css">
p{font-size:15px;
  line-height:140%;
  color:green;
}

## capturev4l2.c
#include <errno.h>
#include <fcntl.h>
#include <linux/videodev2.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <unistd.h>
#include <opencv2/core/core.hpp>

## libuv-vs-libev.md

      
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                laoshaw
                / libuv-vs-libev.md
            
            
              Created
              March 9, 2018 21:52
                — forked from robbie-cao/libuv-vs-libev.md
            
              
                libuv vs libev
              
          
    libuv 和 libev ，两个名字相当相近的 I/O Library，最近有幸用两个 Library 都写了一些东西，下面就来说一说我本人对两者共同与不同点的主观表述。
高性能网络编程这个话题已经被讨论烂了。异步，异步，还是异步。不管是 epoll 也好，kqueue 也罢，总是免不了异步这个话题。
libuv是异步的，libev是同步的多路IO复用。
libev 是系统I/O复用的简单封装，基本上来说，它解决了 epoll ，kqueuq 与 select 之间 API 不同的问题。保证使用 livev 的 API 编写出的程序可以在大多数 *nix 平台上运行。但是 libev 的缺点也是显而易见，由于基本只是封装了 Event Library，用起来有诸多不便。比如 accept(3) 连接以后需要手动 setnonblocking。从 socket 读写时需要检测 EAGAIN 、EWOULDBLOCK 和 EINTER 。这也是大多数人认为异步程序难写的根本原因。
libuv 则显得更为高层。libuv 是 joyent 给 Node 做的一套 I/O Library 。而这也导致了 libuv 最大的特点就是处处回调。基本上只要有可能阻塞的地方，libuv 都使用回调处理。这样做实际上大大减轻了程序员的工作量。因为当回调被 call 的时候，libuv 保证你有事可做，这样 EAGAIN 和 EWOULDBLOCK 之类的 handle 就不是程序员的工作了，libuv 会默默的帮你搞定。

  
## cloudfront-ip-ranges-updater.sh
#!/bin/bash

#  (The MIT License)
#
#  Copyright (c) 2015 Jan Broer
#
#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"), to deal
#  in the Software without restriction, including without limitation the rights
#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

## 0-openwrt-auto-mount-readme.md

      
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                laoshaw
                / 0-openwrt-auto-mount-readme.md
            
            
              Created
              April 14, 2020 03:57
                — forked from lanceliao/0-openwrt-auto-mount-readme.md
            
              
                Auto mount USB storage device by uuid on OpenWrt
              
          
Install USB device support;

opkg install kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-usb-storage e2fsprogs fdisk usbutils mount-utils block-mount kmod-fs-ext4 kmod-fs-vfat kmod-nls-utf-8 kmod-nls-cp437 kmod-nls-iso8859-1

reboot

Install blkid, run opkg update && opkg install blkid;
Copy block.sh to directory /lib/functions;
Copy 10-mount and 20-swap to directory /etc/hotplug.d/block;
That's it! run logread -f command then plug in a USB stick to test.


## Vector.lua
Vector = {}
Vector.__index = Vector

function Vector.__add(a, b)
  if type(a) == "number" then
    return Vector.new(b.x + a, b.y + a)
  elseif type(b) == "number" then
    return Vector.new(a.x + b, a.y + b)
  else
    return Vector.new(a.x + b.x, a.y + b.y)

## iwchan.awk
#!/usr/bin/awk -f

# Coded by: Vladislav Grigoryev <vg[dot]aetera[at]gmail[dot]com>
# License: GNU General Public License (GPL) version 3+
# Description: Select wireless channel automatically

function get_iwphy() {
	cmd = "iw phy"
	while(cmd | getline) {
		if($0 ~ /^\s*Wiphy\s/)
	<?php
	/*
	* dl-file.php
	*
	* Protect uploaded files with login.
	*
	* @link http://wordpress.stackexchange.com/questions/37144/protect-wordpress-uploads-if-user-is-not-logged-in
	*
	* @author hakre <http://hakre.wordpress.com/>
	* @license GPL-3.0+
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>JS Bin</title>
	<style id="jsbin-css">
	p{font-size:15px;
	line-height:140%;
	color:green;
	}
	#include <errno.h>
	#include <fcntl.h>
	#include <linux/videodev2.h>
	#include <stdint.h>
	#include <stdio.h>
	#include <string.h>
	#include <sys/ioctl.h>
	#include <sys/mman.h>
	#include <unistd.h>
	#include <opencv2/core/core.hpp>
	#!/bin/bash

	# (The MIT License)
	#
	# Copyright (c) 2015 Jan Broer
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	Vector = {}
	Vector.__index = Vector

	function Vector.__add(a, b)
	if type(a) == "number" then
	return Vector.new(b.x + a, b.y + a)
	elseif type(b) == "number" then
	return Vector.new(a.x + b, a.y + b)
	else
	return Vector.new(a.x + b.x, a.y + b.y)
	#!/usr/bin/awk -f

	# Coded by: Vladislav Grigoryev <vg[dot]aetera[at]gmail[dot]com>
	# License: GNU General Public License (GPL) version 3+
	# Description: Select wireless channel automatically

	function get_iwphy() {
	cmd = "iw phy"
	while(cmd \| getline) {
	if($0 ~ /^\s*Wiphy\s/)