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How does @synchronized lock/unlock in Objective-C?
Does @synchronized not use "lock" and "unlock" to achieve mutual exclusion? How does it do lock/unlock then?
5 Answers
...
Pass a parameter to a fixture function
...ards. As I have many test_... files I want to reuse the tester object creation (instance of MyTester) for most of my tests.
...
Input and output numpy arrays to h5py
...ix, whose entries are all of the type float . If I save it with the extension .dat the file size is of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I save it to an h5py file?
Also, how do I read the sam...
What is the difference between synchronous and asynchronous programming (in node.js)
...ynchronous (doesn't block)
database.query("SELECT * FROM hugetable", function(result) {
console.log("Query finished");
});
console.log("Next line");
Would be:
Query finished
Next line
Next line
Query finished
Note
While Node itself is single threaded, there are some task that can run in p...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...变量的边界，比如下面这种情况：
for skill in Ada Coffe Action Java do
echo "I am good at ${skill}Script"
done
如果不给skill变量加花括号，写成echo "I am good at $skillScript"，解释器就会把$skillScript当成一个变量（其值为空），代码执行结果...
How do I specify a single test in a file with nosetests?
...ified the file I didn't have any import errors
– gabeio
Aug 25 '17 at 12:44
2
Wow that's terrible...
Share data between AngularJS controllers
...tep form, data entered in one input is later used in multiple display locations outside the original controller. Code below and in jsfiddle here .
...
How do browser cookie domains work?
...wsers don’t fully support that but just comply to the original specification by Netscape.
There is a distinction between the Domain attribute value and the effective domain: the former is taken from the Set-Cookie header field and the latter is the interpretation of that attribute value. Accordin...
How to Sync iPhone Core Data with web server, and then push to other devices? [closed]
...ave been working on a method to sync core data stored in an iPhone application between multiple devices, such as an iPad or a Mac. There are not many (if any at all) sync frameworks for use with Core Data on iOS. However, I have been thinking about the following concept:
...
How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?
...
Easy:
Create interface class, where String output is optional, or can be whatever variables you want to return.
public interface AsyncResponse {
void processFinish(String output);
}
Go to your AsyncTask class, and declare interface AsyncResponse as a field :
public class M...