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Lock-free multi-threading is for real threading experts
... the time is that you do not have dedicated locks - instead you treat e.g. all elements in an array or all nodes in a linked list as a "spin-lock". You read, modify and try to update if there was no update since your last read. If there was, you retry.
This makes your "locking" (oh, sorry, non-locki...
Decimal precision and scale in EF Code First
...number of digits the db will store, regardless of where the decimal point falls and scale is the number of decimal places it will store.
Therefore there is no need to iterate through properties as shown but the can just be called from
public class EFDbContext : DbContext
{
protected override v...
How to decompile a whole Jar file? [closed]
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2009: JavaDecompiler can do a good job with a jar: since 0.2.5, All files, in JAR files, are displayed.
See also the question "How do I “decompile” Java class files?".
The JD-Eclipse doesn't seem to have changed since late 2009 though (see Changes).
So its integration with latest Ecl...
Flags to enable thorough and verbose g++ warnings
.... I then removed from that list the set of warnings that I feel do not actually indicate something bad is happening, or else have too many false positives to be used in a real build. I commented as to why each of the ones I excluded were excluded. This is my final set of suggested warnings:
-pedant...
How do I use LINQ Contains(string[]) instead of Contains(string)
...ght, but you need to create a List<string> from string[] first. Actually a List<int> would be better if uid is also int. List<T> supports Contains(). Doing uid.ToString().Contains(string[]) would imply that the uid as a string contains all of the values of the array as a substr...
Visual Studio debugging/loading very slow
I'm at wits end. Visual Studio is typically painfully slow to debug or just plain load ("start without debugging") my ASP.NET MVC sites. Not always: at first, the projects will load nice and fast, but once they load slow, they'll always load slow after that. I could be waiting 1-2 minutes or more....
How using try catch for exception handling is best practice
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My exception handling strategy is :
To catch all unhandled exceptions by hooking to the Application.ThreadException event, then decide :
For a UI application: to pop it to the user with an apology message (winforms)
For a Service or a Console application: log it to a ...
SQL Server 2008: How to query all databases sizes?
...0 databases.
What is the most efficient, easiest and 'modern' way to query all databases sizes.
14 Answers
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Detach many subdirectories into a new, separate Git repository
...mp;& git reset -q $GIT_COMMIT -- apps/AAA libs/XXX' --prune-empty -- --all
As mentioned by void.pointer in his/her comment, this will remove everything except apps/AAA and libs/XXX from current repository.
Prune empty merge commits
This leaves behind lots of empty merges. These can be remove...
Is it possible to install APK file if more than one emulators/devices are connected [duplicate]
I know how to install the apk file in to the emulator by command prompt and all that.
But i want to know is it possible to install same apk file in to multiple emulator by giving any specific name ?
Actually i have to test one apk file in to many device. and for that i have started many device. I kn...