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How to limit the amount of concurrent async I/O operations?
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{
// let's say there is a list of 1000+ URLs
var urls = { "http://google.com", "http://yahoo.com", ... };
// now let's send HTTP requests to each of these URLs in parallel
var allTasks = new List<Task>();
var throttler = new SemaphoreSlim(initialCount: 20);
foreach (v...
How to add calendar events in Android?
...source project, that Mayra cites, offers no documented and supported APIs. Google has even explicitly told developers to not use the techniques outlined in the tutorial Mayra cites.
Another option is for you to add events to the Internet calendar in question. For example, the best way to add events...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，缓存服务器可以处理大部分客户的静态请求，而原始的WWW服务器只需处理约20%左右的非缓存请求和动态请求，于是大大加快了客户请求的响应时间，并降低了原始WWW服务器的负载。根据美国IDC公司的调查，作为CDN的一项重要指...
How do you debug MySQL stored procedures?
...ub.
See here
http://www.bluegecko.net/mysql/debugging-stored-procedures/
https://github.com/CaptTofu/Stored-procedure-debugging-routines
Was mentioned here
How to catch any exception in triggers and store procedures for mysql?
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pycharm running way slow
... it in action :
and Pycharm is quick and running fine now.
Reference : https://www.jetbrains.com/help/pycharm/2017.1/tuning-pycharm.html#d176794e266
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Apache redirect to another port
...s redirecting. Also, I had some trouble with http://example.com vs. http://www.example.com - only the www worked until I made the ServerName www.example.com, and the ServerAlias example.com. Give the following a go.
<VirtualHost *:80>
ProxyPreserveHost On
ProxyRequests Off
ServerName w...
Ruby: How to turn a hash into HTTP parameters?
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If you are using Ruby 1.9.2 or later, you can use URI.encode_www_form if you don't need arrays.
E.g. (from the Ruby docs in 1.9.3):
URI.encode_www_form([["q", "ruby"], ["lang", "en"]])
#=> "q=ruby&lang=en"
URI.encode_www_form("q" => "ruby", "lang" => "en")
#=> "q=ruby...
Preserve Line Breaks From TextArea When Writing To MySQL
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Return empty cell from formula in Excel
...getting a trueblank as a formula result revealed by The FrankensTeam here:
https://sites.google.com/site/e90e50/excel-formula-to-change-the-value-of-another-cell
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PHP Session Fixation / Hijacking
... understand such a great answer but missing the most import piece: use SSL/HTTPS. The counter increment is a source of problem with multiple request fast after each other, a user refreshes a page twice or hits a submit buttons twice. The IP address solution is a problem nowadays with all the mobile ...