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Executing periodic actions in Python [duplicate]
...ur drift, not timer unreliability. The best way to reduce drift is to only sleep for as long as require until the next expected run time. I'll add an example as another answer.
– Michael Anderson
Aug 12 '13 at 5:12
...
Difference between wait and sleep
What is difference between wait and sleep ?
3 Answers
3
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Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞int send( SOCKET s, const char FAR *buf, int len, int flags ); 不论是客户还是服务器应用程序都用send函数来向TCP连接的...int send( SOCKET s, const char FAR *buf, int len, int flags );
...
How can one use multi threading in PHP applications
... }
public function run() {
if ($this->arg) {
$sleep = mt_rand(1, 10);
printf('%s: %s -start -sleeps %d' . "\n", date("g:i:sa"), $this->arg, $sleep);
sleep($sleep);
printf('%s: %s -finish' . "\n", date("g:i:sa"), $this->arg);
...
C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++特化模板函数的符号多重定义错误问题error LNK2005: "void __stdcall SerializeElements<class CLogEvent> ...fatal error LNK1169: 找到一个或多个多重定义的符号.我...特化模板函数SerializeElements时，报重复定义的错误，如下：
error LNK2005: "void __std...
STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...文件<algorithm>,<numeric>,<functional>组成。要使用 STL中的算法函数必须包含头文件<algorithm>，对于数值算法须包含<numeric>，<functional>中则定义了一些模板类，用来声明函数对象
注意:
编译器无法检测出所传递的迭代器是一个无效形式...
How to profile a bash shell script slow startup?
...ere is a quick demo/test to show how it work:
for i in {1..4};do echo now;sleep .05;done| date -f - +%N
Sample script:
#!/bin/bash
exec 3>&2 2> >( tee /tmp/sample-$$.log |
sed -u 's/^.*$/now/' |
date -f - +%s.%N >/tmp/sample-$$.tim)
set -x
fo...
How to wait in a batch script? [duplicate]
...he ping command doesn't output anything to screen.
You can easily make a sleep command yourself by creating a sleep.bat somewhere in your PATH and use the above technique:
rem SLEEP.BAT - sleeps by the supplied number of seconds
@ping 192.0.2.2 -n 1 -w %1000 > nul
NOTE: The 192.0.2.x addr...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（Variabl GNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（V...
C++虚析构函数解析 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++虚析构函数解析为什么基类的析构函数是虚函数？在实现多态时，当用基类操作派生类，在析构时防止只析构基类而不析构派生类的状况发生。以下内容转自：http...为什么基类的析构函数是虚函数？
在实现多态时，当用基类...