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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...层传输之上提供完全相同的行为。 这种方法存在两个问题: 一,在特定的传输之上建立类TCP的封装实际上使得传输成为多余的了。如果这种方法的行为类似于TCP,那么为什么一开始就不用TCP呢?(性能特性排除在这个规...
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How can we match a^n b^n with Java regex?

...their own in the future. The language used to develop the solution will be PHP for its conciseness. The final test once the pattern is finalized will be done in Java. Step 1: Lookahead for assertion Let's start with a simpler problem: we want to match a+ at the beginning of a string, but only if it...
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...层传输之上提供完全相同的行为。 这种方法存在两个问题: 一,在特定的传输之上建立类TCP的封装实际上使得传输成为多余的了。如果这种方法的行为类似于TCP,那么为什么一开始就不用TCP呢?(性能特性排除在这个规...
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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

... 算法 但是上面的这个算法在重传的时候会出有一个终极问题——你是用第一次发数据的时间和ack回来的时间做RTT样本值,还是用重传的时间和ACK回来的时间做RTT样本值? 这个问题无论你选那头都是按下葫芦起了瓢。 如下图所...
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内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术

...II 上进行汇编语言编程的时代,那时内存管理还不是个大问题。您实际上在运行整个系统。系统有 多少内存,您就有多少内存。您甚至不必费心思去弄明白它有多少内存,因为每一台机器的内存数量都相同。 所以,如果内存需...
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Facebook share link without JavaScript

... You could use <a href="https://www.facebook.com/sharer/sharer.php?u=#url" target="_blank">Share</a> Currently there is no sharing option without passing current url as a parameter. You can use an indirect way to achieve this. Create a server side page for example: "/sharer....
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How to solve “Fatal error: Class 'MySQLi' not found”?

... On AWS, you just run sudo yum install php-mysqli – bobobobo Sep 11 '14 at 16:21 F...
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How to push both value and key into PHP array

...to combine arrays and keep the keys of the added array. For example: <?php $arr1 = array('foo' => 'bar'); $arr2 = array('baz' => 'bof'); $arr3 = $arr1 + $arr2; print_r($arr3); // prints: // array( // 'foo' => 'bar', // 'baz' => 'bof', // ); So you could do $_GET += array('on...
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How to insert element into arrays at specific position?

... @Artefacto "Arrays" in PHP are, in fact, ordered hash tables. PHP arrays act like arrays, but they are never really arrays; nor are they linked lists, or array lists. – Frederik Krautwald Aug 10 '14 at 11:31 ...
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Authenticating in PHP using LDAP through Active Directory

I'm looking for a way to authenticate users through LDAP with PHP (with Active Directory being the provider). Ideally, it should be able to run on IIS 7 ( adLDAP does it on Apache). Anyone had done anything similar, with success? ...