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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...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...多台机器来做，如下图：
一台机器的一个数据表 Collection1 存储了 1T 数据，压力太大了！在分给4个机器后，每个机器都是256G，则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了，为什么要分给四...
How to send POST request?
...ommend Requests: HTTP for Humans. The POST quickstart adapted to your question is:
>>> import requests
>>> r = requests.post("http://bugs.python.org", data={'number': 12524, 'type': 'issue', 'action': 'show'})
>>> print(r.status_code, r.reason)
200 OK
>>> print(r...
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...
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:
...