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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...回调函数分别为easy_connection_on_readable，easy_connection_on_writable和easy_connection_on_timeout_conn(注意，仅仅是初始化，还没有激活)
6. 激活该连接的read_watcher(即让该连接所属的IO线程的event loop监听这个连接的读事件)， 设置其回调函数为e...
Should a Netflix or Twitter-style web service use REST or SOAP? [closed]
...been waiting for a question like this for close to a year now. It was inevitable that this day would come and I am sure we are going to see many more questions like this in the coming months.
The warning signs
You are absolutely correct, it does take longer to build RESTful clients than SOAP clien...
Difference between MEAN.js and MEAN.io
... is the one between MEAN.io and MEAN.js in a more readable format
<table border="1" cellpadding="10"><tbody><tr><td valign="top" width="33%"><br><br><h1>MeanJS.org. provides these benefits that MEAN.io. doesn't</h1><br><br><b>Hel...
Why is it slower to iterate over a small string than a small list?
... just
9 LOAD_CONST 6 (('a', 'b', 'c'))
as tuples are immutable. Test:
>>> python3 -m timeit '[x for x in ("a", "b", "c")]'
1000000 loops, best of 3: 0.369 usec per loop
Great, back up to speed.
For Python 2:
def list_iterate():
[item for item in ["a", "b", "c"]]
...
What is the purpose of Flask's context stacks?
...alues in a script that should be run from the shell. For example, a "setup_tables.py" script...
from myapp import app, db
# Set up models
db.create_all()
In this case, the Flask-SQLAlchemy extension knows about the app application, but during create_all() it will throw an error complaining about...
How to implement classic sorting algorithms in modern C++?
...td::not1 around a function object.
C++ Style
There is no generally acceptable C++14 style yet. For better or for worse, I closely follow Scott Meyers's draft Effective Modern C++ and Herb Sutter's revamped GotW. I use the following style recommendations:
Herb Sutter's "Almost Always Auto" and S...
Is “double hashing” a password less secure than just hashing it once?
...broken with a pre-computed dictionary attack (for example, using a Rainbow Table). Otherwise, the attacker must spend time to compute a hash for each password and see if it matches the stored hash.
All passwords are not equally likely. Attackers might exhaustively search all short passwords, but th...
Git and Mercurial - Compare and Contrast
...l for this writeup
Summary
Here it would be nice to have some syntax for table, something like in PHPMarkdown / MultiMarkdown / Maruku extension of Markdown
Repository structure: Mercurial doesn't allow octopus merges (with more than two parents), nor tagging non-commit objects.
Tags: Mercurial u...
What is move semantics?
...on unit? By contrast, the return value rule simply has to check the symbol tables to determine whether or not the identifier after the return keyword denotes an automatic object.
You can also pass the parameter by value. For move-only types like unique_ptr, it seems there is no established idiom ye...
Efficiently replace all accented characters in a string?
...
What I'm trying to do is make the sorting of the jQuery tablesorter plugin work correctly for table data in German. The plugin can take an user-defined function to extract the string to sort on, which is what I have to do or the resulting sort order will be wrong.
...