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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...主要对TCP Reno 做了些修改。这个算法通过对RTT的非常重的监控来计算一个基准RTT。然后通过这个基准RTT来估计当前的网络实际带宽，如果实际带宽比我们的期望的带宽要小或是要多的活，那么就开始线性地减少或增加cwnd的大小...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，DisconnectData将被调用，在这里，可以释放对这个主题的监控，并不再为其获取新数据。
Heartbeat
确定RTD Server是不是依然可用，0和负数代表不可用，1代表可用。Excel会调用此方法确定服务是否断连。
RefreshData(TopicCount)
TopicCount...
Best way to check if a URL is valid
...
You can use a native Filter Validator
filter_var($url, FILTER_VALIDATE_URL);
Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further validatio...
Laravel: Get base url
...t the answer seems quite hard to come by. In Codeigniter, I could load the url helper and then simply do
17 Answers
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Python : List of dict, if exists increment a dict value, if not append a new dict
...ary, this is easy:
# This example should work in any version of Python.
# urls_d will contain URL keys, with counts as values, like: {'http://www.google.fr/' : 1 }
urls_d = {}
for url in list_of_urls:
if not url in urls_d:
urls_d[url] = 1
else:
urls_d[url] += 1
This code f...
How do I find the absolute url of an action in ASP.NET MVC?
...tension methods. It's already baked in, just not in a very intuitive way.
Url.Action("Action", null, null, Request.Url.Scheme);
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Manipulate a url string by adding GET parameters
I want to add GET parameters to URLs that may and may not contain GET parameters without repeating ? or & .
15 Answe...
How to remove the querystring and get only the url?
Im using PHP to build the URL of the current page. Sometimes, URLs in the form of
16 Answers
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Absolute vs relative URLs
I would like to know the differences between these two types of URLs: relative URLs (for pictures, CSS files, JS files, etc.) and absolute URLs.
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What is the difference between URI, URL and URN? [duplicate]
What's the difference between an URI, URL and URN? I have read a lot of sites (even Wikipedia) but I don't understand it.
4...