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What is so bad about singletons? [closed]
... Real, by-principle singletons are very rare (and a printer queue certainly isn't one, and neither is a log file - see log4j). More often than not, hardware is a singleton by coincidence rather than by principle. All hardware connected to a PC is at best a coincidental singleton (thin...
Singletons vs. Application Context in Android?
... doc : "When you create a new Handler, it is bound to the thread / message queue of the thread that is creating it"
– Christ
Jun 23 '14 at 7:58
1
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NSDefaultRunLoopMode vs NSRunLoopCommonModes
...le above, you may
consider adding your network requests to a custom serial queue.
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Local and global temporary tables in SQL Server
...e visible only to the connection that creates it, and are deleted when the batch or stored procedure ends.
Local temporary tables (CREATE TABLE #t) are visible only to the
connection that creates it, and are deleted when the connection is
closed.
Global temporary tables (CREATE TABLE ##t) are visibl...
How much does it cost to develop an iPhone application? [closed]
...tal. Figure 500-1000 man hours. Contracting rates are $100-150/hr. Figure $50000-$150000. Compare your app to Obama.app and scale accordingly.
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edited Dec 27 '11 at 20:20...
Difference between wait() and sleep()
... id, allowing the scheduler to put the relevant thread back on the running queue? Also I have another question, where does the concept of spinlock fit in? Would it only be relevant for sleep or does wait itself use spinlock at the very low level?
– CMCDragonkai
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Best Practice for Forcing Garbage Collection in C#
...ce that is responding to more then one request at a time.
However in some batch type processing you do know more then the GC. E.g. consider an application that.
Is given a list of file names on the command line
Processes a single file then write the result out to a results file.
While processing...
Why do we use arrays instead of other data structures?
...tting to P4.
Higher level data structures, such as hashtables, stacks and queues, all may use an array (or multiple arrays) internally, while Linked Lists and Binary Trees usually use nodes and pointers.
You might wonder why anyone would use a data structure that requires linear traversal to look ...
How can I run PowerShell with the .NET 4 runtime?
...g contents:
@echo off
:: http://stackoverflow.com/questions/7308586/using-batch-echo-with-special-characters
if exist %~dp0powershell.exe.activation_config goto :run
echo.^<?xml version="1.0" encoding="utf-8" ?^> > %~dp0powershell.exe.activation_config
echo.^<configurati...
Why is Linux called a monolithic kernel?
... not even going to go into checkpointing when dealing with complex message queues. Microkernels are not for the faint of heart.
The shortest path to a working, stable kernel is the monolithic approach. Either approach can offer a POSIX interface, where the design of the kernel becomes of little int...