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Spinlock versus Semaphore
...requires, for an application, to be properly designed that way (probably a queue of pending operations, and here, selecting the next one, leaving the actual on the queue).
– Hibou57
Jul 30 '13 at 1:11
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Accessing Session Using ASP.NET Web API
...pi.
You can easily test this out for yourself by just putting Thread.Sleep(5000) in a WebAPI method and enable Session. Run 5 requests to it and they will take a total of 25 seconds to complete. Without Session they'll take a total of just over 5 seconds.
(This same reasoning applies to SignalR).
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PostgreSQL: Difference between text and varchar (character varying)
...in an application these days—so that the rules (and attempted violations/retries) can be handled smoothly by the UI. If someone does still want to do this sort of thing in the database they could use constraints. See blog.jonanin.com/2013/11/20/postgresql-char-varchar which includes "an example of...
Asynchronously wait for Task to complete with timeout
I want to wait for a Task<T> to complete with some special rules:
If it hasn't completed after X milliseconds, I want to display a message to the user.
And if it hasn't completed after Y milliseconds, I want to automatically request cancellation .
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Is it possible to include a file in your .gitconfig
...diff=gpg
In your repo .config file:
[filter "gpg"]
smudge = gpg -d -q --batch --no-tty
clean = gpg -ea -q --batch --no-tty -r C920A124
[diff "gpg"]
textconv = decrypt
(a GPG-based solution means, off course, you have communicated your private/public keys by another mean onto the destination com...
Generating a unique machine id
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For reference, only a brief batch of Pentium IIIs ever had CPU serial numbers that could be read. While later versions had a serial number it was disabled by default. Pentium IV and later CPUs just didn't support it at all.
– Paul ...
PHP cURL HTTP CODE return 0
...remove this setting (CURLOPT_TIMEOUT_MS) or put a higher value (in my case 5000), you'll get the actual http code, in my case a 200 (as expected).
See https://www.php.net/manual/en/function.curl-setopt.php
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Center content of UIScrollView when smaller
... Works well for me as well, but I did a dispatch_async to the main queue in viewWillAppear where I call scrollViewDidZoom: on my main scroll view. This makes the view appear with centered images.
– Pascal
May 16 '16 at 11:17
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.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
...r data structures you need to add here. like LinkedList, Skip List, Stack, Queue, Heap, Trees, Graphs. These are very important data structures as well.
– DarthVader
Aug 25 '11 at 19:00
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Parser for C#
...n-source
Metaspec C# Parser:
From C# 1.0 to 3.0, commercial product (about 5000$)
#recognize!:
From C# 1.0 to 3.0, commercial product (about 900€) (answer by SharpRecognize)
SharpDevelop Parser (answer by Akselsson)
NRefactory:
From C# 1.0 to 4.0 (+async), open-source, parser used in SharpDevelop....