base on A C++ High Performance Web Server # A C++ High Performance Web Server [](https://travis-ci.org/linyacool/WebServer) [](https://opensource.org/licenses/MIT) ## Introduction 本项目为C++11编写的Web服务器，解析了get、head请求，可处理静态资源，支持HTTP长连接，支持管线化请求，并实现了异步日志，记录服务器运行状态。 | Part Ⅰ | Part Ⅱ | Part Ⅲ | Part Ⅳ | Part Ⅴ | Part Ⅵ | | :--------: | :---------: | :---------: | :---------: | :---------: | :---------: | | [并发模型](https://github.com/linyacool/WebServer/blob/master/并发模型.md)|[连接的维护](https://github.com/linyacool/WebServer/blob/master/连接的维护.md)|[版本历史](https://github.com/linyacool/WebServer/blob/master/%E7%89%88%E6%9C%AC%E5%8E%86%E5%8F%B2.md) | [测试及改进](https://github.com/linyacool/WebServer/blob/master/测试及改进.md) | [项目目的](https://github.com/linyacool/WebServer/blob/master/%E9%A1%B9%E7%9B%AE%E7%9B%AE%E7%9A%84.md) | [面试问题](https://github.com/linyacool/WebServer/blob/master/%E9%9D%A2%E8%AF%95%E9%97%AE%E9%A2%98.md) ## Envoirment * OS: Ubuntu 14.04 * Complier: g++ 4.8 ## Build ./build.sh ## Usage ./WebServer [-t thread_numbers] [-p port] [-l log_file_path(should begin with '/')] ## Technical points * 使用Epoll边沿触发的IO多路复用技术，非阻塞IO，使用Reactor模式 * 使用多线程充分利用多核CPU，并使用线程池避免线程频繁创建销毁的开销 * 使用基于小根堆的定时器关闭超时请求 * 主线程只负责accept请求，并以Round Robin的方式分发给其它IO线程(兼计算线程)，锁的争用只会出现在主线程和某一特定线程中 * 使用eventfd实现了线程的异步唤醒 * 使用双缓冲区技术实现了简单的异步日志系统 * 为减少内存泄漏的可能，使用智能指针等RAII机制 * 使用状态机解析了HTTP请求,支持管线化 * 支持优雅关闭连接   ## Model 并发模型为Reactor+非阻塞IO+线程池，新连接Round Robin分配，详细介绍请参考[并发模型](https://github.com/linyacool/WebServer/blob/master/并发模型.md)  ## 代码统计  ## Others 除了项目基本的代码，进服务器进行压测时，对开源测试工具Webbench增加了Keep-Alive选项和测试功能: 改写后的[Webbench](https://github.com/linyacool/WebBench) ", Assign "at most 3 tags" to the expected json: {"id":"8693","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"