LI Daobing lidaobing

## effective_modern_cmake.md

      
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                mbinna
                / effective_modern_cmake.md
            
            
              Last active
              April 18, 2024 19:26
            
              
                Effective Modern CMake
              
          
    Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.
After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

  
## answers.html
<a class="question_link" target="_blank" href="/question/30746665/answer/49332475">会写 Parser、Tokenizer 是什么水平？</a><br/><br/>大多数编译原理书前100页的内容，说明大学听了一半左右的编译原理课，通俗地说，写了这个只能证明你不是个棒槌。<br><br><br>所以其实你更应该关心不会tokenizer和parser是什么水平。


<span class="answer-date-link-wrap">
<a class="answer-date-link last_updated meta-item" data-tip="s$t$发布于 2015-05-29" target="_blank" href="/question/30746665/answer/49332475">编辑于 2015-05-29</a>
</span>

<hr/><a class="question_link" target="_blank" href="/question/30703519/answer/49150834">王垠到底对 winter 做了什么？</a><br/><br/>你可以理解为是路边看到一坨**，忍不住想去一脚踩爆它的心态。（虽然我知道这么做无聊而且会沾一脚）<br><br>想了想，可能还有一点觉得他的粉丝很可怜的，想让他们停止吃**的心态吧，虽然我知道"然而没卵用"。<br><br>回到题主的问题，要问做了什么，那就是“他是**，还碰巧被我看到了”，这样的事情，简直无法被饶恕。


## nginx dmesg
[32799839.603312] swapper/14: page allocation failure: order:4, mode:0x4020
[32799839.603317] Pid: 0, comm: swapper/14 Tainted: G        W    3.2.0-34-generic #53-Ubuntu
[32799839.603320] Call Trace:
[32799839.603322]  <IRQ>  [<ffffffff8111ceb6>] warn_alloc_failed+0xf6/0x150
[32799839.603336]  [<ffffffff81120c57>] __alloc_pages_nodemask+0x6d7/0x8f0
[32799839.603341]  [<ffffffff8157646c>] ? inet_getpeer+0x17c/0x2b0
[32799839.603346]  [<ffffffff8153c74b>] ? secure_ip_id+0x3b/0x40
[32799839.603351]  [<ffffffff816474de>] kmalloc_large_node+0x57/0x85
[32799839.603357]  [<ffffffff81165ea5>] __kmalloc_node_track_caller+0x195/0x1e0
[32799839.603360]  [<ffffffff81534d8b>] ? __alloc_skb+0x4b/0x240

## standards
[
    {
        name:"HTML5",
        uri:"http://www.w3.org/TR/html5/single-page.html",
        category:"markup"
    },
    {
        name:"HTML 5.1",
        uri:"http://www.w3.org/TR/html51/single-page.html",
        category:"markup"

## changes.md

      
              3 files
            
          
              15 forks
            
          
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                funny-falcon
                / changes.md
            
            
              Last active
              March 23, 2024 05:53
            
              
                Performace patch for ruby-1.9.3-p327
              
          
    Changes:


this version includes backport of Greg Price's patch for speedup startup http://bugs.ruby-lang.org/issues/7158 .
ruby-core prefers his way to do thing, so that I abandon cached-lp and sorted-lf patches of mine.


this version integrates 'array as queue' patch, which improves performance when push/shift pattern is heavily used on Array.
This patch is accepted into trunk for Ruby 2.0 and last possible bug is found by Yui Naruse.
It is used in production* for a couple of months without issues even with this bug.


## nginx.conf
# 在本地服务器建立 rubygems.org 的镜像缓存，以提高 gem 的安装速度
# 此配置设置缓存过期为1天，也就是说，新上的 gem 无法马上安装
# 做这个起什么作用？
# rubygems 的很多资源文件是存放到 Amazon S3 上面的，由于 GFW 对某些 S3 服务器又连接重置或丢包，导致 gem 安装异常缓慢或有时候根本无法连接安装。
# 而通过这种跳板的方式可以很好的解决这个问题，当然前提是 Nginx反向代理 服务器需要在国外

proxy_cache_path  /var/cache/rubygems  levels=1:2    keys_zone=RUBYGEMS:10m
                                       inactive=24h  max_size=1g;
server {
  listen 80;

## as3.rake
# 1) Put 's3' gem in Gemfile.
# 2) Create as3.yml configuration for S3
# 3) Create initializer for as3.yml
# 4) Make "assets" folder inside your bucket
# 5) After running task run "RAILS_ENV=production rake assets:precompile"
# 6) Invoke task by running "rake as3:upload"

namespace :as3 do
  desc "Uploads compiled assets (public/assets) to Amazone AS3"
  task :upload do

## gist:981817
:+1:
:-1:
:airplane:
:art:
:bear:
:beer:
:bike:
:bomb:
:book:
:bulb:

## rails_3_1_rc4_changes.md

      
              1 file
            
          
              43 forks
            
          
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              196 stars
            
          
                ryanb
                / rails_3_1_rc4_changes.md
            
            
              Created
              May 6, 2011 01:10
            
              
                The Changelogs for Rails 3.1 Beta 1
              
          
    Railties 3.1 RC4


The new rake task assets:clean removes precompiled assets. [fxn]


Application and plugin generation run bundle install unless --skip-gemfile or --skip-bundle. [fxn]


Fixed database tasks for jdbc* adapters #jruby [Rashmi Yadav]


Template generation for jdbcpostgresql  #jruby [Vishnu Atrai]


## auto_route.py
#!/usr/bin/env python

# Usage:
# This script will generate two files(vpnup and vpndown) after executing.
# Do chmod a+x on the two newly created files, and then move them to the
# openvpn config folder. then add the following two lines to the vpn config file:
#     up vpnup
#     down vpndown
# you might also need 'redirect-gateway' in the config file, if you don't use vpn
# as the default gateway.
	<a class="question_link" target="_blank" href="/question/30746665/answer/49332475">会写 Parser、Tokenizer 是什么水平？</a><br/><br/>大多数编译原理书前100页的内容，说明大学听了一半左右的编译原理课，通俗地说，写了这个只能证明你不是个棒槌。<br><br><br>所以其实你更应该关心不会tokenizer和parser是什么水平。


	<span class="answer-date-link-wrap">
	<a class="answer-date-link last_updated meta-item" data-tip="s$t$发布于 2015-05-29" target="_blank" href="/question/30746665/answer/49332475">编辑于 2015-05-29</a>
	</span>

	<hr/><a class="question_link" target="_blank" href="/question/30703519/answer/49150834">王垠到底对 winter 做了什么？</a><br/><br/>你可以理解为是路边看到一坨，忍不住想去一脚踩爆它的心态。（虽然我知道这么做无聊而且会沾一脚）<br><br>想了想，可能还有一点觉得他的粉丝很可怜的，想让他们停止吃的心态吧，虽然我知道"然而没卵用"。<br><br>回到题主的问题，要问做了什么，那就是“他是**，还碰巧被我看到了”，这样的事情，简直无法被饶恕。
	[32799839.603312] swapper/14: page allocation failure: order:4, mode:0x4020
	[32799839.603317] Pid: 0, comm: swapper/14 Tainted: G W 3.2.0-34-generic #53-Ubuntu
	[32799839.603320] Call Trace:
	[32799839.603322] <IRQ> [<ffffffff8111ceb6>] warn_alloc_failed+0xf6/0x150
	[32799839.603336] [<ffffffff81120c57>] __alloc_pages_nodemask+0x6d7/0x8f0
	[32799839.603341] [<ffffffff8157646c>] ? inet_getpeer+0x17c/0x2b0
	[32799839.603346] [<ffffffff8153c74b>] ? secure_ip_id+0x3b/0x40
	[32799839.603351] [<ffffffff816474de>] kmalloc_large_node+0x57/0x85
	[32799839.603357] [<ffffffff81165ea5>] __kmalloc_node_track_caller+0x195/0x1e0
	[32799839.603360] [<ffffffff81534d8b>] ? __alloc_skb+0x4b/0x240
	[
	{
	name:"HTML5",
	uri:"http://www.w3.org/TR/html5/single-page.html",
	category:"markup"
	},
	{
	name:"HTML 5.1",
	uri:"http://www.w3.org/TR/html51/single-page.html",
	category:"markup"
	# 在本地服务器建立 rubygems.org 的镜像缓存，以提高 gem 的安装速度
	# 此配置设置缓存过期为1天，也就是说，新上的 gem 无法马上安装
	# 做这个起什么作用？
	# rubygems 的很多资源文件是存放到 Amazon S3 上面的，由于 GFW 对某些 S3 服务器又连接重置或丢包，导致 gem 安装异常缓慢或有时候根本无法连接安装。
	# 而通过这种跳板的方式可以很好的解决这个问题，当然前提是 Nginx反向代理服务器需要在国外

	proxy_cache_path /var/cache/rubygems levels=1:2 keys_zone=RUBYGEMS:10m
	inactive=24h max_size=1g;
	server {
	listen 80;
	# 1) Put 's3' gem in Gemfile.
	# 2) Create as3.yml configuration for S3
	# 3) Create initializer for as3.yml
	# 4) Make "assets" folder inside your bucket
	# 5) After running task run "RAILS_ENV=production rake assets:precompile"
	# 6) Invoke task by running "rake as3:upload"

	namespace :as3 do
	desc "Uploads compiled assets (public/assets) to Amazone AS3"
	task :upload do
	#!/usr/bin/env python

	# Usage:
	# This script will generate two files(vpnup and vpndown) after executing.
	# Do chmod a+x on the two newly created files, and then move them to the
	# openvpn config folder. then add the following two lines to the vpn config file:
	# up vpnup
	# down vpndown
	# you might also need 'redirect-gateway' in the config file, if you don't use vpn
	# as the default gateway.