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What's the difference between deadlock and livelock?
...eadlock: situation where nobody progress, doing nothing (sleeping, waiting etc..). CPU usage will be low;
Livelock: situation where nobody progress, but CPU is spent on the lock mechanism and not on your calculation;
Starvation: situation where one procress never gets the chance to run; by pure ba...
How to pass parameters correctly?
...::forward may be called only once. I've seen people putting it into loops, etc. and since this answer will be seen by a lot of beginners, there should IMHO be a fat "Warning!"-label to help them avoid this trap.
– Daniel Frey
Mar 25 '13 at 6:17
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How can I use different certificates on specific connections?
... a "key entry", but is just fine for a "trusted entry").
keytool -import -file selfsigned.pem -alias server -keystore server.jks
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iPhone/iOS JSON parsing tutorial [closed]
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. Tutorial you mentioned requires DMG file but I could not find any DMG file on Link you mentioned for framework. that link directs on github and contains a zip file with various classes and examples but I dont understand which part I need to insert in my projec...
How to use relative/absolute paths in css URLs?
...
The URL is relative to the location of the CSS file, so this should work for you:
url('../../images/image.jpg')
The relative URL goes two folders back, and then to the images folder - it should work for both cases, as long as the structure is the same.
From https://ww...
converting drawable resource image into bitmap
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In res/drawable folder,
1. Create a new Drawable Resources.
2. Input file name.
A new file will be created inside the res/drawable folder.
Replace this code inside the newly created file and replace ic_action_back with your drawable file name.
<bitmap xmlns:android="http://schemas.androi...
Tools to make CSS sprites? [closed]
...lf, but the tool will give you the code fragments you need for the new CSS file.
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基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nse() ?: $this->last_response;
}
public function upload($url, $file, $param = array(), $header = array())
{
$boundary = sprintf('%010d', mt_rand());
$header[] = "Content-Type: multipart/form-data; boundary={$boundary}";
$oauth = array(
'oa...
Find the nth occurrence of substring in a string
...large, so suppose we want to find the 1000001st newline ('\n') in a 1.3 GB file called 'bigfile'. To save memory, we would like to work on an mmap.mmap object representation of the file:
In [1]: import _find_nth, find_nth, mmap
In [2]: f = open('bigfile', 'r')
In [3]: mm = mmap.mmap(f.fileno(), 0...
Can I recover a branch after its deletion in Git?
...nch to the sha of the commit found using a command like that (it creates a file with all the dangling commits):
git fsck --full --no-reflogs --unreachable --lost-found | grep commit | cut -d\ -f3 | xargs -n 1 git log -n 1 --pretty=oneline > .git/lost-found.txt
If you should use it more than...