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BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...区别，同步必须等待或者主动的去询问IO是否完成，那么为什么说是阻塞的呢？因为此时是通过select系统调用来完成的，而select函数本身的实现方式是阻塞的，而采用select函数有个好处就是它可以同时监听多个文件句柄，从而提...
How to use Boost in Visual Studio 2010
What is a good step by step explanation on how to use the Boost library in an empty project in Visual Studio?
13 Answers
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Android Studio: Add jar as library?
...the steps I took:
Put the Gson jar (in my case, gson-2.2.4.jar) into the libs folder
Right click it and hit 'Add as library'
Ensure that compile files('libs/gson-2.2.4.jar') is in your build.gradle file (or compile fileTree(dir: 'libs', include: '*.jar') if you are using many jar files)
Edit : U...
Library not loaded: libmysqlclient.16.dylib error when trying to run 'rails server' on OS X 10.6 wit
...l_name_tool every time you update your mysql
sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib
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How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du
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Try putting the driver jar in the server lib folder. ($CATALINA_HOME/lib)
I believe that the connection pool needs to be set up even before the application is instantiated. (At least that's how it works in Jboss)
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Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project
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Also, consider adding a lib folder, and use "Attach Jar Directories", which will add all jars in the lib folder. For a largish project, this keeps you from having to choose each jar individually.
– joeslice
Ju...
Change R default library path using .libPaths in Rprofile.site fails to work
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I generally try to keep all of my packages in one library, but if you want to add a library why not append the new library (which must already exist in your filesystem) to the existing library path?
.libPaths( c( .libPaths(), "~/userLibrary") )
Or (and this will make the ...
How to determine the Boost version on a system?
Is there a quick way to determine the version of the Boost C++ libraries on a system?
11 Answers
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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
....cnf (usually in the etc folder) is correctly configured with
socket=/var/lib/mysql/mysql.sock
you can check if mysql is running with the following command:
mysqladmin -u root -p status
try changing your permission to mysql folder. If you are working locally, you can try:
sudo chmod -R 777 /v...
ios程序员和android程序员的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...员冷冷的说道：还特么没有完成。 ios程序员好奇地问：为什么？ android程序员依旧冷冷的回答，因为我特么要开发的游戏需要支持3寸，3.2寸，3.5寸，3.7寸，3.8寸，3.9寸，4寸，4.1寸，4.2 寸，4.3寸，4.5寸，4.7寸，4.8寸，5寸，5.5寸...