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How does @synchronized lock/unlock in Objective-C?
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In Objective-C, a @synchronized block handles locking and unlocking (as well as possible exceptions) automatically for you. The runtime dynamically essentially generates an NSRecursiveLock that is associated with the object you're synchronizing on. This App...
Programmatically access currency exchange rates [closed]
... sure it's far from the most elegant way to do this, but I'm pretty new to PHP. Hope it helps!
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Why is Linux called a monolithic kernel?
...sically just system services). For instance, VFS (virtual file system) and block device file systems (i.e. minixfs) are separate processes that run outside of the kernel's space, using IPC to communicate with the kernel, other services and user processes. In short, if it's a module in Linux, it's a ...
How to trick an application into thinking its stdout is a terminal, not a pipe
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I don't know if it's doable from PHP, but if you really need the child process to see a TTY, you can create a PTY.
In C:
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
#include <pty.h>
int ma...
What is the fundamental difference between WebSockets and pure TCP?
...S-encrypted connections), which is of benefit for those environments which block non-web Internet connections using a firewall.
Would you like to use existed TCP port or open a new TCP port that might be blocked by firewall?
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Calculate the center point of multiple latitude/longitude coordinate pairs
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I found this post very useful so here is the solution in PHP. I've been using this successfully and just wanted to save another dev some time.
/**
* Get a center latitude,longitude from an array of like geopoints
*
* @param array data 2 dimensional array of latitudes and longit...
Difference between using Throwable and Exception in a try catch
.... So by catching Throwable you can be sure that you'll never leave the try block without at least going through your catch block, but you should be prepared to also handle OutOfMemoryError and InternalError or StackOverflowError.
Catching Throwable is most useful for outer server loops that delegat...
Calling Python in Java?
... many ways in which this can go sour. So make sure you get each thing done block by block. Then put them together.
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Java Desktop application: SWT vs. Swing [closed]
...arison done on SWT/Swing/AWT.
http://www.developer.com/java/other/article.php/10936_2179061_2/Swing-and-SWT-A-Tale-of-Two-Java-GUI-Libraries.htm
And here's the site where you can get tutorial on basically anything on SWT (http://www.java2s.com/Tutorial/Java/0280__SWT/Catalog0280__SWT.htm)
Hope yo...
Is AsyncTask really conceptually flawed or am I just missing something?
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true -- but what if the task blocks indefinitely? Tasks are meant to perform blocking operations, maybe even ones that never terminate. There you have your memory leak.
– Matthias
Jul 29 '10 at 7:29
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