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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ram_ops是系统调用层直接调用的操作。udp_prot是底层协议的处理。可以看到相比TCP,UDP不用accept(),lis 创建udp socket
在socket()创建的时候,会设置对应协议的操作集。 inet_dgram_ops是系统调用层直接调用的操作。udp_prot是底层协议的...
Writing a list to a file with Python
... This isn't terribly complex, but why not just use pickle or json so that you don't have to worry about the serialization and deserialization?
– Jason Baker
May 22 '09 at 18:37
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MySQL vs MongoDB 1000 reads
...tched by id)
Retrieve the contents of one database page (the actual binary json document)
So a b-tree lookup, and a binary page read. Log(n) + 1 IOs. If the indexes can reside entirely in memory, then 1 IO.
In MySQL with 20 tables, you have to perform:
One index lookup on the root table (again,...
What is the best AJAX library for Django? [closed]
...
Incidently, don't ever construct a JSON response like "{'response_text': '"+post_text+" recieved.'}" as in the third link. Import json or simplejson and use dumps!
– Flash
Sep 20 '12 at 1:55
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How to check whether a string is Base64 encoded or not
...
Try like this for PHP5
//where $json is some data that can be base64 encoded
$json=some_data;
//this will check whether data is base64 encoded or not
if (base64_decode($json, true) == true)
{
echo "base64 encoded";
}
else
{
echo ...
CURL alternative in Python
...uests I never looked back to using urllib2 directly anymore. The built-in JSON decoding is handy as well. No need to manually load the body with json if the appropriate content-type is set.
– Thomas Farvour
Dec 17 '13 at 21:36
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How to know if two arrays have the same values
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Object equality check:JSON.stringify(array1.sort()) === JSON.stringify(array2.sort())
The above test also works with arrays of objects in which case use a sort function as documented in http://www.w3schools.com/jsref/jsref_sort.asp
Might suffice...
Rails: call another controller action from a controller
...her. Redirecting is really something different. Also: render status: :ok, json: JSON.parse(controller.render(:action_you_want).first) seems to work to return JSON from the other controller
– Yourpalal
Jul 28 '17 at 15:08
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛,有思想、有深度
...的是让所装的软件支持正则表达式。默认情况下,Nginx只处理静态的网页请求,也就是html.如果是来自动态的网页请求,比如*.php,那么Nginx就要根据正则表达式查询路径,然后把*.PHP交给PHP去处理
#rpm -qa | grep pcre &n...
Add new methods to a resource controller in Laravel
... autoloaded, they must be in some directory that you have in your composer.json ("autoload" section).
Then you just need to:
Route::resource('users', 'UsersController');
And this (look at the last line) is the result if you run php artisan routes:
Those are my source files:
ExtendedRouteFacad...
