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Design and implementation of P2P - based instant messaging server

Author: SongGuang
Tutor: DuanHanCong；YangQunLi
School: University of Electronic Science and Technology
Course: Software Engineering
Keywords: P2P Instant messaging epoll Event-driven
CLC: TP393.05
Type: Master's thesis
Year: 2011
Downloads: 92
Quote: 0
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Abstract


With the continuous improvement of people's living standard , people interaction information , timeliness requirements are increasing , route of transmission of the traditional media ( television, newspapers ) has been unable to fully meet the needs of the people , so the dependence on Internet technology more and more strong . Therefore, with the domestic and foreign enterprises invested energy research on the Internet , the Internet in recent years , the rapid development . This , as the two hot spots in the Internet , P2P networks and instant messaging have become the most important corporate concerns and input . Instant messaging is now the business has gradually become an integral part of people 's online activities . It gradually from personal business evolution to the enterprise business , enterprise instant messaging technology research , today 's instant communications research focus . Aggregate P2P P2P-based instant messaging and instant messaging each bit , compared with the original instant communication , but also has its own unique advantages . This paper describes the principle of instant communication technology based on P2P and detailed understanding and analysis of P2P and instant messaging technology , combined with the current P2P and instant messaging technology development status , design a P2P-based instant messaging system . The system is a the paragraph hybrid P2P network model , without dependence on any particular point , thus reducing the burden on the server in C / S structure . NAT traversal for P2P networks to achieve two-way communication to put forward their own solution . Underlying communication using asynchronous non-blocking to ease the pressure of server-side CPU to avoid CPU idling . Structures of the instant messaging network characteristics simulated test environment to fully test this model , and testing process , carried out a detailed analysis and argument in this environment . Has been tested , the system has basically reached the requirements of the overall design , each module is basically to normal operation .

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