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How to write a scalable Tcp/Ip based server

... to doubt these indicative figures. IOCP versus thread-per-connection or 'select' primitives The reason you want to use a mechanism that uses IOCP under the hood is that it uses a very low-level Windows thread pool that does not wake up any threads until there is actual data on the IO channel that...
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What to do Regular expression pattern doesn't match anywhere in string?

...\&_more.htm input tag #1 at character 9955: class => "searchSelect" id => "twotabsearchtextbox" name => "field-keywords" size => "50" style => "width:100%; background-color: #FFF;" title => "Search for" type => "text" ...
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public friend swap member function

...call: using std::swap; // allow use of std::swap... swap(x, y); // ...but select overloads, first // that is, if swap(x, y) finds a better match, via ADL, it // will use that instead; otherwise it falls back to std::swap What is a friend function? There is confusion around this area. Before C++...
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Split string into an array in Bash

...omewhere after 2.05b): echo "${array[@]: -1:1}" Larger negative offsets select farther from the end of the array. Note the space before the minus sign in the older form. It is required. share | i...
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What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?

...eems a bit backwards. I would expect the problem do be when std::swap() is selected rather than the overload specific to the type, A::swap(). The example with std::swap(A::MyClass&, A::MyClass&) seems misleading. since std would never have a specific overload for a user type, I don't think i...
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How to make an OpenGL rendering context with transparent background?

... 0); assert(hbmpDIB); assert(bmp_cnt); if(hbmpDIB) SelectObject(pdcDIB, hbmpDIB); } BOOL CreateHGLRC() { DWORD dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_BITMAP; PIXELFORMATDESCRIPTOR pfd ; memset(&pfd,0, sizeof(PIXELFORMATDESCRIPTOR)) ; pfd.nSize = size...
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Dynamically update values of a chartjs chart

...leStartValue : 0 } //Get the context of the canvas element we want to select var ctx = document.getElementById("myChart").getContext("2d"); var optionsNoAnimation = {animation : false} var myNewChart = new Chart(ctx); myNewChart.Line(data, optionsAnimation); setInterval(function(){...
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...ehashfn(net, daddr, hnum, saddr, sport); result = reuseport_select_sock(sk, hash, skb, sizeof(struct udphdr)); //根据reuseport算法选择一个sock直接返回 if (result) return result; matches = 1; } result = sk; //使用最大分数的sk作为结...
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术

... GVIS_FOCUSED 单元格成为焦点 GVIS_SELECTED 单元格被选中 GVIS_DROPHILITED 单元格被高亮显示 GVIS_READONLY 单元格只读 GVIS_FIXED 单元格固定 GVIS_FIXED...
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OceanBase使用libeasy原理源码分析:服务器端 - 数据库(内核) - 清泛网 - ...

...EASY_OK,则signal信号量,从而工作线程被唤醒。 典型的,select请求这种需要回复多个包给MySQL客户端的场景使用的都是这种模式 其它诸如只需要回复一个包给MySQL客户端的DML操作,例如INSERT,UPDATE等也使用这种模式,只是工作线程...