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How many threads is too many?
I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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Remove unused imports in Android Studio
...imize imports of your current file and your entire project depends on your selection in a dialog.
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Swift 编程语言入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tive-C的命名参数和动态对象模型。提供了对Cocoa框架和mix-and-match的互操作性。基于这些基础，Swift引入了很多新功能和结合面向过程和面向对象的功能。
Swift对新的程序员也是友好的。他是工业级品质的系统编程语言，却又像脚...
What is a “thread” (really)?
I have been trying to find a good definition, and get an understanding, of what a thread really is.
10 Answers
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MSTest copy file to test run folder
...ile in Visual Studio, right click on the Solution and choose New Item, and select the TestSettings template. To use the TestSettings file at the command prompt of mstest.exe add the option, /testsettings:C:\Src\mySolution\myProject\local.testsettings (or add as an extra command line option in Team...
Verify a certificate chain using openssl verify
...ot CA needs to self signed for verify to work. This is why your second command didn't work. Try this instead:
openssl verify -CAfile RootCert.pem -untrusted Intermediate.pem UserCert.pem
It will verify your entire chain in a single command.
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...ially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
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Command to collapse all sections of code?
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You can also right click in the editor an select: Outlining -> Toggle All Outlining
– LBushkin
Jun 11 '09 at 18:11
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Commenting code in Notepad++
...ers' benefit (for python and notepad++)
1) Ctrl+K on multiple lines (i.e. selected region) allows you to block comment.
Also note that pressing the combination multiple times allows you to add multiple "#"s (sometimes I use that while testing to differentiate from other comments)
2) Ctrl+Shift+K...
Significant new inventions in computing since 1980
...World Wide Web ("distributed hypertext via simple mechanisms") as proposed and implemented by Tim Berners-Lee started in 1989/90.
While the idea of hypertext had existed before (Nelson’s Xanadu had tried to implement a distributed scheme), the WWW was a new approach for implementing a distribute...