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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...持续2个MSL(Max Segment Lifetime)，在Windows下默认为4分钟,即240秒，TIME_WAIT状态下的socket不能被回收使用。 具体现象是对于一个处理大量短连接的服务器，如果是由服务器主动关闭客户端的连接，将导致服务器端存在大量的处于TIME_WAIT...
Relative paths in Python
...so, that doesn't appear to be the case on my system (python 2.5.1 on OS X 10.5.7):
#foo.py
import os
print os.getcwd()
print __file__
#in the interactive interpreter
>>> import foo
/Users/jason
foo.py
#and finally, at the shell:
~ % python foo.py
/Users/jason
foo.py
However, I do know ...
What's the difference between git clone --mirror and git clone --bare
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590
The difference is that when using --mirror, all refs are copied as-is. This means everything: re...
jQuery Validate Plugin - Trigger validation of single field
...lidation.org/valid
– userfuser
Oct 10 '16 at 8:32
1
The API has changed, use the answer provided ...
Way to go from recursion to iteration
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edited Jul 8 at 0:23
Christian
2,81711 gold badge1414 silver badges2828 bronze badges
answered...
What is a typedef enum in Objective-C?
...es were specified, they get assigned to consecutive integers starting with 0, so kCircle is 0, kRectangle is 1, and kOblateSpheroid is 2.
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Can you find all classes in a package using reflection?
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edited Oct 1 '14 at 20:43
Bogdan Mart
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answered Feb 6 '09 at 1...
Install NPM into home directory with distribution nodejs package (Ubuntu)
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201
NPM will install local packages into your projects already, but I still like to keep the system...
C# Passing Function as Argument [duplicate]
...on(double x);
public double Diff(double x, MyFunction f)
{
double h = 0.0000001;
return (f(x + h) - f(x)) / h;
}
public double MyFunctionMethod(double x)
{
// Can add more complicated logic here
return x + 10;
}
public void Client()
{
double result = Diff(1.234, x => x * 4...
How can I generate Unix timestamps?
...
In Linux or MacOS you can use:
date +%s
where
+%s, seconds since 1970-01-01 00:00:00 UTC. (GNU Coreutils 8.24 Date manual)
Example output now 1454000043.
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