LingFeng TheWaWaR

Concepts

Node : A content section
Menu : List subnodes
Cross-Reference : Link to some node
Index : um...index.
Table of Contents : Show node hierarchy
History : Just like borwser page history
Recents : A list show recent visited nodes

What are threads

Blabla... thread is tiny process that share the memory.

Thread can run on multicore CPUs. But how about The C10K problem?

GUI Thread and Worker Thread

Qt GUI must run in "main thread"

Simultaneous Access to Data

Simultaneous access an shared object will be faster that communicate in process, but it's also dangerous.
Some cases will cause danger

概述

应用程序代理类设置顶层视图控制，并处理了获取RSS信息(XML格式)的连接。RSS信息获取完毕后，使用了任务队列执行xml解析操作。等解析完成后将记录数据添加到记录数组中并刷新顶层视图。顶层视图控制器控制显示记录数据，并在渲染可见元素时(满足一定条件)下载(默认异步)相应记录中的图片，然后显示出来。

语境说明
- 应用程序代理类：LazyTableAppDelegate
- 顶层视图控制器：RootViewController
- 负责解析XML的类：ParseOperation
- 负责下载图片的类：IconDownloader

	from geventwebsocket.handler import WebSocketHandler
	from gevent.pywsgi import WSGIServer
	from flask import Flask, request, render_template

	app = Flask(__name__)
	app.debug = True

	@app.route('/')
	def index():
	return render_template('index.html')

	# 1. Install the dependencies
	yum install gcc-c++ libsigc++20-devel

	# 2. Install libTorrent
	wget http://libtorrent.rakshasa.no/downloads/libtorrent-0.13.3.tar.gz
	./configure --prefix=$HOME/local && make && make install

	# 3. Install the client
	wget http://libtorrent.rakshasa.no/downloads/rtorrent-0.9.3.tar.gz
	export PKG_CONFIG_PATH=$HOME/local/lib/pkgconfig

	#download the JDK

	#oracle's rpm.bin gets pulled down as corrupt..zzz

	#wget --no-cookies --header "Cookie: gpw_e24=xxx" "http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-x64-rpm.bin" -O jdk-7-linux-x64-rpm.bin

	#updated for version 7u11
	wget --no-check-certificate --no-cookies --header "Cookie: gpw_e24=xxx" http://download.oracle.com/otn-pub/java/jdk/7u11-b21/jdk-7u11-linux-x64.rpm -O jdk-7u11-linux-x64.rpm
	sudo rpm -ivh jdk-7u11-linux-x64.rpm
	sudo alternatives --install /usr/bin/java java /usr/java/default/bin/java 20000

	import QtQuick 1.1

	Item {
	width: 200
	height: 300

	ListView {
	anchors.fill: parent
	model: nestedModel
	delegate: categoryDelegate

	import os
	from flask import Flask, send_from_directory

	app = Flask(__name__)

	@app.route('/upload/<path:filename>')
	def send_uploads(filename):
	print filename
	return send_from_directory(os.path.join(app.root_path, 'upload'), filename)

	# Created at: [2013-04-28 10:00]
	# Updated at: [2015-11-26 10:39]
	# Updated at: [2016-01-29 23:51]

	set -g utf8
	set-window-option -g utf8 on

	# Common
	set -g mode-keys vi
	set-option -g default-shell $TMUX_SHELL # In ~/.bashrc :: export TMUX_SHELL='/usr/local/bin/zsh'

	# 从 Oracle 官方网站下载下列文件：
	#
	# oracle-instantclient11.2-basic-11.2.0.3.0-1.x86_64.rpm
	# oracle-instantclient11.2-devel-11.2.0.3.0-1.x86_64.rpm
	# oracle-instantclient11.2-sqlplus-11.2.0.3.0-1.x86_64.rpm


	# 安装 Oracle 客户端
	rpm -ivh oracle-instantclient11.2-basic-11.2.0.3.0-1.x86_64.rpm
	rpm -ivh oracle-instantclient11.2-devel-11.2.0.3.0-1.x86_64.rpm