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Why Qt is misusing model/view terminology?

...at they call "View". Over the years I have worked with these frameworks: MFC Qt Swing SWT WPF with MVVM If you compare how the terms "Model" and "View" are used in these frameworks, and what responsibilities the classes in the "View", the "Model", and the "Controller" (if there is one) have, you...
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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

...可丢失这个事实而提供了可靠性保证。 ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑的,而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑...
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Framework vs. Toolkit vs. Library [duplicate]

...r towards a specific output; an application for a specific OS for example (MFC for MS Windows for example), or for more general purpose work (Spring framework for example). SDK: "Software Development Kit" An SDK is a collection of tools to assist the programmer to create and deploy code/content wh...
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CDN(内容分发网络)技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,直接使用被加速网站原有的域名即可访问),又要在为指定的网站提供加速服务的同时降低对ICP的影响,只要修改整个访问过程中的域名解析部分,以实现透明的加速服务,下面是CDN网络实现的具体操作过程。   1)、作为ICP...
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Multiple INSERT statements vs. single INSERT with multiple VALUES

...ation trying to convert a table with several 100k rows with a C++ program (MFC/ODBC). Since this operation took a very long time, I figured bundling multiple inserts into one (up to 1000 due to MSSQL limitations). My guess that a lot of single insert statements would create an overhead similar to w...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术

...固有的可丢失这个事实而提供了可靠性保证。 ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑的,而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑...
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一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...信息或泄露;2015年5月,携程网全面瘫痪疑似数据库物理删除;2015年6月,美国人事管理局(OPM)被指出大量工作人员信息泄露;2015年8月,婚外情网站Ashley Madison数据遭泄露…… 对于大数据新创企业来说,数据的安全性就是“命”...
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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

...3的意思是确认有3个数据包被收到了) 重传Duplicated ACKs指定的数据包 如果再收到 duplicated Acks,那么cwnd = cwnd +1 如果收到了新的Ack,那么,cwnd = sshthresh ,然后就进入了拥塞避免的算法了。 如果你仔细思考一下上面的这个算...
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How do I safely pass objects, especially STL objects, to and from a DLL?

...terface (there are also APIs that expose COM interfaces). Then ATL/WTL and MFC wrap these pure C interfaces with C++ classes and objects. share | improve this answer | follow...
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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 - ...

...调用easy_message_destroy(m, 1),将message从连接的message链表中删除,并将message的引用计数减1,,此时message的引用计数为1. 6. 调用easy_connection_write_socket将数据写出,然后调用easy_buf_destroy(buf),从而会调buf的cleanup函数easy_request_cleanup,...