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How to debug Ruby scripts [closed]
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with -rdebug :no need to change source file in order to debug
– germanlinux
Sep 23 '14 at 21:18
2
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What is a daemon thread in Java?
...s up to four daemon threads named "Image Fetcher" to fetch images from the file system or network for any thread that needs one.
Daemon threads are typically used to perform services for your application/applet (such as loading the "fiddley bits"). The core difference between user threads and daemo...
What exactly are “spin-locks”?
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When you use regular locks (mutexes, critical sections etc), operating system puts your thread in the WAIT state and preempts it by scheduling other threads on the same core. This has a performance penalty if the wait time is really short, because your thread now has to wait for ...
Why use apparently meaningless do-while and if-else statements in macros?
...ive in the real world. Unless we can guarantee that all the if statements, etc, in our code use braces, then wrapping macros like this is a simple way of avoiding problems.
– Steve Melnikoff
Nov 20 '13 at 17:16
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Proper way to use **kwargs in Python
...(**kwargs):
foo = kwargs.pop('foo')
bar = kwargs.pop('bar')
...etc...
is "the same as"
def f(foo=None, bar=None, **kwargs):
...etc...
this is not true. In the latter case, f can be called as f(23, 42), while the former case accepts named arguments only -- no positional calls. ...
What is RPC framework and Apache Thrift?
...achine. The code for both server and client is generated from a Thrift IDL file. To get it running, you basically have to add only the intended program logic and put all the pieces together.
The single best reference for Apache Thrift is still the Apache Thrift Whitepaper. Although slightly outdate...
How to use Servlets and Ajax?
...text
Create a /some.jsp like below (note: the code doesn't expect the JSP file being placed in a subfolder, if you do so, alter servlet URL accordingly):
<!DOCTYPE html>
<html lang="en">
<head>
<title>SO question 4112686</title>
<script src="htt...
Sending email in .NET through Gmail
...chment attachment;
attachment = new System.Net.Mail.Attachment("c:/textfile.txt");
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential("your mail@gmail.com", "your password");
SmtpServer.EnableSsl = true;
SmtpSe...
How to get Maven project version to the bash command line
...failed. Cannot run program "maven" (in directory "/tmp"): error=2, No such file or directory shrug yet another answer that doesn't work for me, oh well
– cbmanica
Jan 31 '17 at 20:03
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Microsoft Roslyn vs. CodeDom
...se code, perform semantic analysis, compile and evaluate code dynamically, etc.
In addition to the compilers, the Roslyn team is also rebuilding the Visual Studio C# and VB IDE features on top of the public compiler APIs. So, the compiler APIs are rich enough to build the Visual Studio design-time ...