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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
...己的特点来关闭）
setsockopt(sock_fd, IPPROTO_TCP, TCP_NODELAY, (char *)&value,sizeof(int));
另外，网上有些文章说TCP_CORK的socket option是也关闭Nagle算法，这个还不够准确。TCP_CORK是禁止小包发送，而Nagle算法没有禁止小包发送，只是禁止了大...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
... connecting to the server. Maybe the problem is because of the wrong query string or too many connections to the database.
So I suggest you to try all the solutions one by one and don't give up!
Here are the solutions that I found on the internet and for each of them, there is at least on person w...
how to detect search engine bots with php?
...
Check the $_SERVER['HTTP_USER_AGENT'] for some of the strings listed here:
http://www.useragentstring.com/pages/useragentstring.php
Or more specifically for crawlers:
http://www.useragentstring.com/pages/useragentstring.php?typ=Crawler
If you want to -say- log the number of ...
What is The Rule of Three?
... actually means.
Let us consider a simple example:
class person
{
std::string name;
int age;
public:
person(const std::string& name, int age) : name(name), age(age)
{
}
};
int main()
{
person a("Bjarne Stroustrup", 60);
person b(a); // What happens here?
b = ...
Get city name using geolocation
...
For V3, the {'latlng':latlng} string should be changed to 'location', as in ...geocode({'location':latlng}). This example got me almost there, but the 'latlng' string no longer seems to be valid in newer apis. See: developers.google.com/maps/documentati...
Are Javascript arrays sparse?
...ly hash tables internally, so you can use not only large integers but also strings, floats, or other objects. All keys get converted to strings via toString() before being added to the hash. You can confirm this with some test code:
<script>
var array = [];
array[0] = "zero";
array[new ...
How to format a Java string with leading zero?
Here is the String, for example:
21 Answers
21
...
ssh: The authenticity of host 'hostname' can't be established
...sh-keygen -F $IP`" (in quotes), in other case it won't be interpreted as a string
– avtomaton
Jun 19 '19 at 22:14
...
Get bitcoin historical data [closed]
...ebClient = new System.Net.WebClient())
{
var json = WebClient.DownloadString("https://www.bitstamp.net/api/ticker/");
string value = Convert.ToString(json);
// Parse/use from here
}
From here, you can parse the JSON and store it in a database (or with MongoDB insert it directly) and...
Indenting #defines
...eprocessor did not allow for space between the start of a line and the "#" character; the leading "#" had to always be placed in the first column.
Pre-ANSI C compilers are non-existent these days. Use which ever style (space before "#" or space between "#" and the identifier) you prefer.
http://ww...