├── README.md ├── http ├── http_conn.cpp └── http_conn.h ├── lock └── lock.h ├── main.cpp ├── makefile ├── root ├── 1.jpg ├── AryaStark.png ├── DaenerysTargaryen.png ├── JaimeLannister.png ├── JohnSnow.png ├── NedStark.png ├── TyrionLannister.png ├── base.html ├── error.html ├── favicon.ico ├── help.html ├── js │ ├── echarts.min.js │ ├── jquery.min.js │ └── socket.io.js ├── regester.html ├── test.html ├── welcome.html └── welcomeroot.html ├── threadpool └── pool.h ├── time └── m_time.h └── userdata ├── redis.cpp └── redis.h /README.md: -------------------------------------------------------------------------------- 1 | # JohnSnow 2 | * 作者 Chai Shilin 3 | * 为《权力的游戏》中，你喜欢的角色投票！ 4 | * 现已挂载到腾讯云，点击[JohnSnow](http://154.8.143.128:12345/)来访问并且投票！ 5 | * 腾讯云到期了没续费，投票已经下线2333 6 | ## 多线程的web服务器，可以解析http请求 7 | * 基于半同步半反应堆模式，建立线程池，实现高并发 8 | * 利用string相关函数进行http请求解析和响应报文生成 9 | * 利用共享内存和io向量机制实现页面返回 10 | * redis保存用户数据 11 | 12 | ### 线程安全手段（类） 13 | * mutex 14 | * sem 15 | 16 | ### 线程池类 17 | * 维护线程列表和请求列表 18 | * 主线程用于监听套接字，读取（创建http对象并且入队）和写入响应报文 19 | * 工作线程用于接受连接，处理请求 20 | * 请求列表中为http请求对象，各个线程竞争请求列表中的锁 21 | 22 | ### http请求类 23 | * 维护连接，用读写套接字来初始化 24 | * 实现报文解析，支持GET和POST 25 | * 通过共享内存获得指向请求文件资源的指针，通过io向量机制，将响应行和内容聚集写入，返回响应报文 26 | 27 | ### main函数 28 | * 注册epoll的可读、可写事件，当出现有效事件时，将请求压入请求列表， 29 | * 创建连接，创建线程池，创建主线程用于监听连接 30 | 31 | ### 数据库 32 | * 使用redis键值对来储存用户名和密码 33 | * sorted-set 记录投票 34 | * 单例模式创建redis客户端类，用于用户信息查询,包装了常用的查询命令，并对结果进行解析 35 | * 函数getReply(向redis服务端发送请求)进行了加锁保护，防止同一块区域被同时改写而导致返回结果异常 36 | * 需要拥有redis环境 37 | + 安装redis `sudo apt-get install redis-server` 38 | + 安装C++的hiredis库 `sudo apt-get install libhiredis-dev` 39 | 40 | ### 定时器 41 | * 使用定时器清理非活跃连接 42 | * 创建管道，信号（定时触发或按键触发）被触发时，向管道内写入 43 | * epoll监听管道一端的读事件 44 | * 根据读出的信号不同，进行定时清理或关闭服务的操作 45 | * 信号handler仅向管道中写数据，用于更新标志位，并不进行真正的清理操作，保证处理足够快速 46 | * 主函数循环中根据标志位的变化来执行具体的操作 47 | 48 | ### 网页页面 49 | * 具有登录、注册、错误、欢迎、帮助五个页面 50 | * 登录页面显示投票现况，登录后可以投票 51 | * 登录页面 52 | + ajax实现轮询，获得sorted-set最新投票数据 53 | + echarts实现柱状图 54 | * 欢迎界面 55 | + 按钮生成post请求进行投票 56 | ![ss0](./root/1.jpg) 57 | 58 | 59 | ### 压力测试 60 | * 采用webbench进行压力测试 61 | * `webbench -c 10000 -t 300 http://127.0.0.1:33345/` 62 | * 测试结果 63 | 64 | thread num|CPU|RAM | Requests susceed |Requests failed 65 | :-:|:-:|:-:|:-:|:-: 66 | 10| i7 8th| 16G|11021590 | 15420 67 | 68 | * 加入定时器后，进行压力测试 69 | * 测试结果好像没啥变化 70 | 71 | thread num|CPU|RAM | Requests susceed |Requests failed 72 | :-:|:-:|:-:|:-:|:-: 73 | 10|i7 8th| 16G|11199117 | 14603 74 | 75 | thread num|CPU|RAM | Requests susceed |Requests failed 76 | :-:|:-:|:-:|:-:|:-: 77 | 100| i7 8th| 16G|10904512 | 15485 78 | 79 | ### 致谢 80 | * [我模仿的服务端项目 TinyWebServer](https://github.com/qinguoyi/TinyWebServer) 81 | * Linux高性能服务器编程，游双著. 82 | 83 | 84 | -------------------------------------------------------------------------------- /http/http_conn.cpp: -------------------------------------------------------------------------------- 1 | #include "http_conn.h" 2 | 3 | void setnonblocking(int socketfd) 4 | { 5 | int old_opt = fcntl(socketfd, F_GETFL); 6 | int new_opt = old_opt | O_NONBLOCK; 7 | fcntl(socketfd, F_SETFL, new_opt); 8 | } 9 | 10 | void addfd(int epollfd, int socketfd) 11 | { 12 | //把该描述符添加到epoll的事件表 13 | epoll_event m_event; //新建一个事件 14 | m_event.data.fd = socketfd; //使得描述符为本描述符 15 | m_event.events = EPOLLIN | EPOLLET | EPOLLRDHUP; //监听输入、边缘触发、挂起？ 知识点，什么叫挂起？ 16 | epoll_ctl(epollfd, EPOLL_CTL_ADD, socketfd, &m_event); //将该事件添加，知识点，ctl的作用？ 17 | setnonblocking(socketfd); //设置非阻塞，什么叫阻塞非阻塞 18 | } 19 | 20 | void removefd(int epollfd, int socketfd) 21 | { 22 | epoll_ctl(epollfd, EPOLL_CTL_DEL, socketfd, 0); //把该套接字的对应事件删除 23 | close(socketfd); 24 | } 25 | 26 | void modfd(int epollfd, int socketed, int ev) 27 | { 28 | epoll_event m_event; 29 | m_event.events = ev | EPOLLET | EPOLLONESHOT | EPOLLRDHUP; 30 | m_event.data.fd = socketed; 31 | epoll_ctl(epollfd, EPOLL_CTL_MOD, socketed, &m_event); 32 | } 33 | 34 | int http_conn::m_user_count = 0; 35 | int http_conn::m_epollfd = -1; 36 | 37 | void http_conn::init(int socketfd, const sockaddr_in &addr) //套接字的初始化，用于添加进epoll的事件表 38 | { 39 | m_socket = socketfd; 40 | m_addr = addr; 41 | addfd(m_epollfd, m_socket); 42 | init(); 43 | } 44 | 45 | void http_conn::init() 46 | { 47 | filename = ""; 48 | memset(read_buff, '\0', BUFF_READ_SIZE); //清空缓冲区 49 | memset(write_buff, '\0', BUFF_WRITE_SIZE); 50 | read_for_now = 0; 51 | write_for_now = 0; 52 | } 53 | 54 | void http_conn::close_conn(string msg) 55 | { 56 | //将当前的描述符在epoll监听事件里面去除 57 | if (m_socket != -1) 58 | { 59 | removefd(m_epollfd, m_socket); 60 | m_user_count--; 61 | m_socket = -1; //-1就是代表没有正在连接的套接字 62 | } 63 | } 64 | 65 | void http_conn::process() //对请求进行处理 66 | { 67 | //首先进行报文的解析 68 | HTTP_CODE ret = process_read(); 69 | if (ret == NO_REQUEST) 70 | { 71 | modfd(m_epollfd, m_socket, EPOLLIN); 72 | return; 73 | } 74 | //然后进行报文的响应 75 | bool result = process_write(ret); 76 | modfd(m_epollfd, m_socket, EPOLLOUT); //最后向epoll的监听的事件表中添加可写事件 77 | } 78 | 79 | void http_conn::parser_requestline(const string &text, map &m_map) 80 | { 81 | string m_method = text.substr(0, text.find(" ")); 82 | string m_url = text.substr(text.find_first_of(" ") + 1, text.find_last_of(" ") - text.find_first_of(" ") - 1); 83 | string m_protocol = text.substr(text.find_last_of(" ") + 1); 84 | m_map["method"] = m_method; 85 | m_map["url"] = m_url; 86 | m_map["protocol"] = m_protocol; 87 | } 88 | void http_conn::parser_header(const string &text, map &m_map) 89 | { 90 | if (text.size() > 0) 91 | { 92 | if (text.find(": ") <= text.size()) 93 | { 94 | string m_type = text.substr(0, text.find(": ")); 95 | string m_content = text.substr(text.find(": ") + 2); 96 | m_map[m_type] = m_content; 97 | } 98 | else if (text.find("=") <= text.size()) 99 | { 100 | string m_type = text.substr(0, text.find("=")); 101 | string m_content = text.substr(text.find("=") + 1); 102 | m_map[m_type] = m_content; 103 | } 104 | } 105 | } 106 | 107 | void http_conn::parser_postinfo(const string &text, map &m_map) 108 | { 109 | //username=chaishilin&passwd=12345&votename=alibaba 110 | //cout << "post: " << text << endl; 111 | string processd = ""; 112 | string strleft = text; 113 | while (true) 114 | { 115 | processd = strleft.substr(0, strleft.find("&")); 116 | m_map[processd.substr(0, processd.find("="))] = processd.substr(processd.find("=") + 1); 117 | strleft = strleft.substr(strleft.find("&") + 1); 118 | if (strleft == processd) 119 | break; 120 | } 121 | } 122 | 123 | http_conn::HTTP_CODE http_conn::process_read() 124 | { 125 | 126 | string m_head = ""; 127 | string m_left = read_buff; //把读入缓冲区的数据转化为string 128 | //cout << read_buff << endl; 129 | //cout << "--------------------" << endl; 130 | int flag = 0; 131 | int do_post_flag = 0; 132 | while (true) 133 | { 134 | //对每一行进行处理 135 | m_head = m_left.substr(0, m_left.find("\r\n")); 136 | m_left = m_left.substr(m_left.find("\r\n") + 2); 137 | if (flag == 0) 138 | { 139 | flag = 1; 140 | //cout << "request line : " << m_head << endl; 141 | parser_requestline(m_head, m_map); 142 | } 143 | 144 | else if (do_post_flag) 145 | { 146 | //cout << "do: post" << endl; 147 | parser_postinfo(m_head, m_map); 148 | break; 149 | } 150 | else 151 | { 152 | //cout << "head : " << m_head << endl; 153 | parser_header(m_head, m_map); 154 | } 155 | if (m_head == "") 156 | do_post_flag = 1; 157 | if (m_left == "") 158 | break; 159 | } 160 | /* 161 | cout << "map:--------------------------------------------------------------------" << endl; 162 | for (auto i : m_map) 163 | { 164 | if(i.first == "username" || i.first =="passwd") 165 | cout << i.first << ":" << i.second << endl; 166 | } 167 | cout << "mapok:+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++" << endl; 168 | //favicon.ico 169 | */ 170 | if (m_map["method"] == "POST") 171 | { 172 | //cout << "request" << read_buff << endl; 173 | return POST_REQUEST; 174 | } 175 | else if (m_map["method"] == "GET") 176 | { 177 | return GET_REQUEST; 178 | } 179 | else 180 | { 181 | return NO_REQUEST; 182 | } 183 | } 184 | 185 | bool http_conn::do_request() 186 | { 187 | //区分get和post都请求了那些文件或网页 188 | //cout << "method: " << m_map["method"] << " url: " << m_map["url"] << endl; 189 | if (m_map["method"] == "POST") 190 | { 191 | redis_clt *m_redis = redis_clt::getinstance(); 192 | if (m_map["url"] == "/base.html" || m_map["url"] == "/") //如果来自于登录界面 193 | { 194 | //处理登录请求 195 | //cout << "处理登录请求" << endl; 196 | //cout << "user's passwd: " << m_redis->getUserpasswd(m_map["username"]) << endl; 197 | //cout << "we got : " << m_map["passwd"] << endl; 198 | if (m_redis->getUserpasswd(m_map["username"]) == m_map["passwd"]) 199 | { 200 | //cout << "登录进入欢迎界面" << endl; 201 | if (m_redis->getUserpasswd(m_map["username"]) == "root") 202 | filename = "./root/welcomeroot.html"; //登录进入欢迎界面 203 | else 204 | filename = "./root/welcome.html"; //登录进入欢迎界面 205 | } 206 | else 207 | { 208 | //cout << "登录失败界面" << endl; 209 | filename = "./root/error.html"; //进入登录失败界面 210 | } 211 | } 212 | else if (m_map["url"] == "/regester.html") //如果来自注册界面 213 | { 214 | m_redis->setUserpasswd(m_map["username"], m_map["passwd"]); 215 | //cout << "set:" << m_map["username"]<<"passwd: "<vote(m_map["votename"]); 222 | postmsg = ""; 223 | return false; 224 | //filename = "./root/welcome.html"; //进入初始登录界面 225 | } 226 | else if (m_map["url"] == "/getvote") //如果主页要请求投票 227 | { 228 | //读取redis 229 | //cout << "get read vote !" << endl; 230 | 231 | postmsg = m_redis->getvoteboard(); 232 | //cout << postmsg << endl; 233 | return false; 234 | } 235 | else 236 | { 237 | filename = "./root/base.html"; //进入初始登录界面 238 | } 239 | } 240 | else if (m_map["method"] == "GET") 241 | { 242 | if (m_map["url"] == "/") 243 | { 244 | m_map["url"] = "/base.html"; 245 | } 246 | filename = "./root" + m_map["url"]; 247 | } 248 | else 249 | { 250 | filename = "./root/error.html"; 251 | } 252 | return true; 253 | //cout << "return filename : " << filename << endl; 254 | } 255 | void http_conn::unmap() 256 | { 257 | if (file_addr) 258 | { 259 | munmap(file_addr, m_file_stat.st_size); 260 | file_addr = 0; 261 | } 262 | } 263 | bool http_conn::process_write(HTTP_CODE ret) 264 | { 265 | 266 | if (do_request()) 267 | { 268 | //filename 269 | int fd = open(filename.c_str(), O_RDONLY); 270 | 271 | stat(filename.c_str(), &m_file_stat); 272 | file_addr = (char *)mmap(0, m_file_stat.st_size, PROT_READ, MAP_PRIVATE, fd, 0); 273 | m_iovec[1].iov_base = file_addr; 274 | m_iovec[1].iov_len = m_file_stat.st_size; 275 | m_iovec_length = 2; 276 | close(fd); //居然忘记关闭描述符了 277 | } 278 | else 279 | { 280 | 281 | 282 | if (postmsg != "") 283 | { 284 | if(postmsg.length() < 20) 285 | cout <<"wrong pstmsg : "<< postmsg << endl; 286 | strcpy(post_temp, postmsg.c_str()); 287 | //cout < BUFF_READ_SIZE) //如果当前可以写入读缓冲区的位置已经超出了缓冲区长度了 306 | { 307 | cout << "read error at beigin" << endl; 308 | return false; 309 | } 310 | int bytes_read = 0; 311 | while (true) 312 | { 313 | bytes_read = recv(m_socket, read_buff + read_for_now, BUFF_READ_SIZE - read_for_now, 0); 314 | if (bytes_read == -1) //出现错误 315 | { 316 | if (errno == EAGAIN || errno == EWOULDBLOCK) //如果是因为。。。和，，，原因导致的话，就顺利退出循环 317 | { 318 | break; 319 | } 320 | cout << "bytes_read == -1" << endl; 321 | return false; 322 | } 323 | else if (bytes_read == 0) //没东西可读？ 324 | { 325 | cout << "bytes_read == 0" << endl; 326 | return false; //读完了为什么返回0？ 327 | continue; 328 | } 329 | read_for_now += bytes_read; 330 | } 331 | 332 | return true; 333 | } 334 | 335 | bool http_conn::write() //把响应的内容写到写缓冲区中,并説明该连接是否为长连接 336 | { 337 | int bytes_write = 0; 338 | //先不考虑大文件的情况 339 | string response_head = "HTTP/1.1 200 OK\r\n\r\n"; 340 | char head_temp[response_head.size()]; 341 | strcpy(head_temp, response_head.c_str()); 342 | m_iovec[0].iov_base = head_temp; 343 | m_iovec[0].iov_len = response_head.size() * sizeof(char); 344 | 345 | bytes_write = writev(m_socket, m_iovec, m_iovec_length); 346 | 347 | if (bytes_write <= 0) 348 | { 349 | return false; 350 | } 351 | unmap(); 352 | if (m_map["Connection"] == "keep-alive") 353 | { 354 | //return true; 355 | return false; 356 | } 357 | else 358 | { 359 | return false; 360 | } 361 | } 362 | -------------------------------------------------------------------------------- /http/http_conn.h: -------------------------------------------------------------------------------- 1 | #ifndef HTTP_CONN_H 2 | #define HTTP_CONN_H 3 | 4 | #include "../lock/lock.h" 5 | #include "../userdata/redis.h" 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include 14 | #include 15 | #include 16 | #include 17 | using namespace std; 18 | 19 | class http_conn //http 连接类 20 | { 21 | public: 22 | static const int BUFF_READ_SIZE = 2048; 23 | static const int BUFF_WRITE_SIZE = 2048; 24 | enum METHOD //报文请求方法 25 | { 26 | GET = 0, 27 | POST 28 | }; 29 | enum MAIN_STATE // 主状态机状态 30 | { 31 | REQUESTLINE = 0, 32 | HEADER, 33 | CONTENT 34 | }; 35 | enum LINE_STATE // 从状态机状态 36 | { 37 | LINE_OK = 0, 38 | LINE_BAD, 39 | LINE_OPEN 40 | }; 41 | enum HTTP_CODE 42 | { 43 | NO_REQUEST, 44 | GET_REQUEST, 45 | POST_REQUEST, 46 | NO_RESOURCE, 47 | CLOSED_CONNECTION 48 | }; 49 | 50 | public: 51 | http_conn(){}; 52 | ~http_conn(){}; 53 | 54 | public: 55 | void init(int socketfd, const sockaddr_in &addr); //初始化套接字 56 | void init(); //实现具体各个参数值的初始化 57 | void close_conn(string msg = ""); //关闭连接 58 | void process(); //处理请求 59 | bool read(); //一次性调用recv读取所有数据，读取浏览器发来的全部数据，读到读缓冲区,返回调用是否称成功的信息 60 | bool write(); 61 | 62 | public: 63 | static int m_epollfd; //当前http连接的epoll描述符,这个是静态的 64 | static int m_user_count; 65 | 66 | private: 67 | HTTP_CODE process_read(); //从读缓冲区读取出来数据进行解析 68 | bool process_write(HTTP_CODE ret); //写入响应到写缓冲区中 69 | 70 | void parser_header(const string &text, map &m_map); //解析请求的内容 71 | void parser_requestline(const string &text, map &m_map); //解析请求的第一行 72 | void parser_postinfo(const string &text, map &m_map); //解析post请求正文 73 | 74 | bool do_request(); //确定到底请求的是哪一个页面 75 | 76 | void unmap(); 77 | /* 78 | HTTP_CODE parser_requestline(); //三个解析函数，用于解析？？？ 79 | HTTP_CODE parser_header(); 80 | HTTP_CODE parser_content(); 81 | LINE_STATE parser_line();//从状态机的读取 82 | */ 83 | 84 | /* 85 | private: 86 | 87 | HTTP_CODE do_request();//生成响应到？？？ 88 | 89 | //do_request 调用的生成响应的函数 90 | bool add_responce(); 91 | bool add_content(); 92 | bool add_stateline(); 93 | bool add_header(); 94 | bool add_content_type(); 95 | bool add_content_length(); 96 | bool add_linger(); 97 | bool add_blank_line(); 98 | */ 99 | private: 100 | locker m_redis_lock; 101 | int m_socket; //当前属于这个http连接的套接字 102 | sockaddr_in m_addr; 103 | 104 | struct stat m_file_stat; 105 | struct iovec m_iovec[2]; 106 | int m_iovec_length; 107 | string filename; 108 | string postmsg; 109 | char *file_addr; 110 | char post_temp[]; 111 | char read_buff[BUFF_READ_SIZE]; //每个http连接都有一个读缓冲区和写缓冲区 112 | char write_buff[BUFF_WRITE_SIZE]; //每个http连接都有一个读缓冲区和写缓冲区 113 | int read_for_now = 0; 114 | int write_for_now = 0; 115 | 116 | map m_map; //http连接的各项属性 117 | }; 118 | 119 | #endif -------------------------------------------------------------------------------- /lock/lock.h: -------------------------------------------------------------------------------- 1 | #ifndef LOCK_H 2 | #define LOCK_H 3 | 4 | #include 5 | #include 6 | //封装信号量和锁 7 | class sem // 8 | { 9 | public: 10 | sem() 11 | { 12 | sem_init(&m_sem, 0, 0); 13 | } 14 | ~sem() 15 | { 16 | sem_destroy(&m_sem); 17 | } 18 | bool wait() //v操作，-1 19 | { 20 | return (sem_wait(&m_sem) == 0); 21 | } 22 | bool post() //p操作，+1 23 | { 24 | return (sem_post(&m_sem) == 0); 25 | } 26 | 27 | private: 28 | sem_t m_sem; 29 | }; 30 | 31 | class locker 32 | { 33 | private: 34 | pthread_mutex_t m_lock; 35 | 36 | public: 37 | locker() 38 | { 39 | pthread_mutex_init(&m_lock,0); 40 | } 41 | ~locker() 42 | { 43 | pthread_mutex_destroy(&m_lock); 44 | } 45 | bool dolock() 46 | { 47 | return (pthread_mutex_lock(&m_lock)==0); 48 | } 49 | bool unlock() 50 | { 51 | return (pthread_mutex_unlock(&m_lock) == 0); 52 | } 53 | }; 54 | #endif -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | #include "./http/http_conn.h" 2 | #include "./lock/lock.h" 3 | #include "./threadpool/pool.h" 4 | #include "./time/m_time.h" 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | 12 | 13 | using namespace std; 14 | 15 | extern void addfd(int epollfd, int socketfd); 16 | extern void setnonblocking(int socketfd); 17 | 18 | const int MAX_FD = 65536; 19 | const int MAX_EVENT_NUMBER = 10000; 20 | const int MAX_WAIT_TIME = 15; 21 | static int pipefd[2]; 22 | static int epollfd = 0; //全局静态变量 23 | static t_client_list m_timer_list; 24 | 25 | template 26 | void destroy_user_list(T user_list) //用模板改写下，销毁两个列表 27 | { 28 | int count = 0; 29 | for (auto i : user_list) 30 | { 31 | if (i) 32 | { 33 | count++; 34 | delete i; 35 | } 36 | } 37 | cout << "delete " << count << " items" << endl; 38 | } 39 | 40 | void addfd_lt(int epollfd, int socketfd) 41 | { 42 | epoll_event event; 43 | event.data.fd = socketfd; 44 | event.events = EPOLLIN | EPOLLRDHUP; 45 | epoll_ctl(epollfd, EPOLL_CTL_ADD, socketfd, &event); 46 | } 47 | 48 | void cb_func(client_data *c_data) //定时器回调函数，真正地关闭非活动连接,仅仅在定时器事件中被触发，不会主动调用 49 | { 50 | epoll_ctl(epollfd, EPOLL_CTL_DEL, c_data->sockfd, 0); 51 | close(c_data->sockfd); 52 | http_conn::m_user_count--; 53 | } 54 | 55 | void addsig(int sig, void(handler)(int), bool restart = true) 56 | { 57 | struct sigaction sa; 58 | memset(&sa, '\0', sizeof(sa)); 59 | sa.sa_handler = handler; 60 | if (restart) 61 | sa.sa_flags |= SA_RESTART; 62 | sigfillset(&sa.sa_mask); 63 | sigaction(sig, &sa, NULL); 64 | } 65 | 66 | void sig_handler(int sig) 67 | { 68 | //cout << "sig_handler get: " << sig << endl; 69 | int errnotemp = errno; 70 | int msg = sig; 71 | send(pipefd[1], (char *)&msg, 1, 0); //写入当前是哪个信号发出的信号,管道的属性：向后面的写，前面的就读出来 72 | errno = errnotemp; //保证可重入性 73 | } 74 | 75 | void timer_handler() 76 | { 77 | m_timer_list.tick(); //这里是异步的吗？ 78 | alarm(MAX_WAIT_TIME); 79 | } 80 | /* 81 | 主函数中： 82 | 1.创建线程池 83 | 2.根据最大描述符来创建http请求数组，用来根据不同请求的不同描述符来记录各个http请求 84 | 3.socket,bind,listen,epool_wait,得到io事件event 85 | 4.对于新的连接请求，接受，保存入http请求数组进行初始化 86 | 5.对于读写请求，请求入队 87 | */ 88 | 89 | int main(int argc, char *agrv[]) 90 | { 91 | int port; 92 | if (argc <= 1) 93 | { 94 | cout << "open default port : 12345" << endl; 95 | port = 12345; 96 | } 97 | else 98 | { 99 | port = atoi(agrv[1]); 100 | } 101 | 102 | pool m_threadpool(10, 10000); //创建线程池对象 103 | vector http_user_list(MAX_FD, nullptr); //连接数量取决于描述符的数量,这个太奇怪了，析构什么的 104 | int user_count = 0; //用户数为0 105 | 106 | int listenfd = socket(PF_INET, SOCK_STREAM, 0); //socket 107 | struct sockaddr_in address; 108 | address.sin_addr.s_addr = htonl(INADDR_ANY); 109 | address.sin_family = AF_INET; 110 | address.sin_port = htons(port); 111 | int flag = 1; 112 | setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof(flag)); 113 | bind(listenfd, (struct sockaddr *)&address, sizeof(address)); 114 | 115 | listen(listenfd, 5); 116 | //cout << "listen, listenfd : " << listenfd << endl; 117 | 118 | //创建内核事件表 119 | epoll_event event_list[MAX_EVENT_NUMBER]; 120 | int epollfd = epoll_create(5); 121 | addfd_lt(epollfd, listenfd); 122 | http_conn::m_epollfd = epollfd; //更新http_conn类中的epoll描述符 123 | 124 | //创建管道 用于定时器和其他信号消息的通知 125 | socketpair(PF_UNIX, SOCK_STREAM, 0, pipefd); //域协议 126 | setnonblocking(pipefd[1]); //写入是非阻塞的？？？？为什么 127 | addfd(epollfd, pipefd[0]); //监听前一个管道描述符 128 | 129 | addsig(SIGALRM, sig_handler, false); //监听定时信号 130 | addsig(SIGTERM, sig_handler, false); //监听定时信号 131 | 132 | addsig(SIGINT, sig_handler, false); //监听定时信号 133 | vector client_data_list(MAX_FD, nullptr); //创建用户信息列表，其中包含定时器信息 134 | 135 | alarm(MAX_WAIT_TIME); //开始定时 136 | bool timeout = false; 137 | bool stop_server = false; 138 | while (!stop_server) 139 | { 140 | int number = epoll_wait(epollfd, event_list, MAX_EVENT_NUMBER, -1); 141 | for (int i = 0; i < number; ++i) 142 | { 143 | int socketfd = event_list[i].data.fd; 144 | if (socketfd == listenfd) 145 | { 146 | //cout << "new client" << endl; 147 | //新的连接 148 | struct sockaddr_in client_addr; 149 | socklen_t client_addr_length = sizeof(client_addr); 150 | int connfd = accept(listenfd, (struct sockaddr *)(&client_addr), &client_addr_length); 151 | if (connfd < 0) 152 | { 153 | //printf("%s\n", strerror(errno)); 154 | continue; //跳过这一轮 155 | } 156 | if (http_conn::m_user_count >= MAX_FD) 157 | continue; 158 | if (http_user_list[connfd] == nullptr) 159 | { 160 | cout << "new http " << connfd << endl; 161 | http_user_list[connfd] = new http_conn(); 162 | } 163 | http_user_list[connfd]->init(connfd, client_addr); 164 | 165 | //开始初始化client_data 166 | //创建定时器 167 | if (client_data_list[connfd] == nullptr) 168 | { 169 | cout << "new timer " << connfd << endl; 170 | client_data_list[connfd] = new client_data; 171 | } 172 | client_data_list[connfd]->address = client_addr; 173 | client_data_list[connfd]->sockfd = connfd; 174 | 175 | t_client *timer = new t_client; 176 | timer->user_data = client_data_list[connfd]; 177 | timer->cb_func = cb_func; 178 | time_t time_now = time(nullptr); 179 | timer->livetime = time_now + MAX_WAIT_TIME; 180 | client_data_list[connfd]->timer = timer; 181 | m_timer_list.add_timer(timer); 182 | } 183 | else if (event_list[i].events & (EPOLLHUP | EPOLLRDHUP | EPOLLERR)) 184 | { 185 | //printf("%s\n", strerror(errno)); 186 | http_user_list[socketfd]->close_conn("error!"); 187 | //关闭对应的计时器 188 | t_client *timer = client_data_list[socketfd]->timer; 189 | if (timer) 190 | m_timer_list.del_timer(timer); 191 | } 192 | else if ((socketfd == pipefd[0]) && (event_list[i].events & EPOLLIN)) //管道前面的描述符可写的话 193 | { 194 | int sig; 195 | char signals[1024]; 196 | int retmsg = recv(socketfd, signals, sizeof(signals), 0); 197 | if (retmsg <= 0) 198 | { 199 | continue; 200 | } 201 | else 202 | { 203 | for (int i = 0; i < retmsg; ++i) 204 | { 205 | if (signals[i] == SIGALRM) 206 | { 207 | timeout = true; 208 | break; 209 | } 210 | else if (signals[i] == SIGTERM || signals[i] == SIGINT) 211 | { 212 | stop_server = true; 213 | } 214 | } 215 | } 216 | } 217 | 218 | else if (event_list[i].events & EPOLLIN) 219 | { 220 | t_client *timer = client_data_list[socketfd]->timer; 221 | //客户的数据要读进来 222 | if (http_user_list[socketfd]->read()) 223 | { 224 | //如果读到了一些数据（已经读到了读缓存区里）,就把这个请求放到工作线程的请求队列中 225 | m_threadpool.append(http_user_list[socketfd]); 226 | 227 | //针对这个活跃的连接，更新他的定时器里规定的存活事件 228 | if (timer) 229 | { 230 | time_t timenow = time(NULL); 231 | timer->livetime = timenow + MAX_WAIT_TIME; 232 | //cout << "adjust_timer" << endl; 233 | m_timer_list.adjust_timer(timer); //调整当前timer的位置（因为很活跃） 234 | } 235 | else 236 | { 237 | cout << "did not creat timer for socket:" << socketfd << endl; 238 | } 239 | } 240 | else 241 | { 242 | //没有读到数据的话 243 | http_user_list[socketfd]->close_conn("read nothing"); 244 | if (timer) 245 | m_timer_list.del_timer(timer); 246 | } 247 | } 248 | else if (event_list[i].events & EPOLLOUT) 249 | { 250 | t_client *timer = client_data_list[socketfd]->timer; 251 | //cout << "want to write" << endl; 252 | if (http_user_list[socketfd]->write()) 253 | { 254 | //长连接的话，不关闭 255 | if (timer) 256 | { 257 | cout << "long connect" << endl; 258 | time_t timenow = time(NULL); 259 | timer->livetime = timenow + MAX_WAIT_TIME; 260 | m_timer_list.adjust_timer(timer); //调整当前timer的位置（因为很活跃） 261 | } 262 | else 263 | { 264 | cout << "did not creat timer for socket:" << socketfd << endl; 265 | } 266 | } 267 | else 268 | { 269 | //短连接，关闭连接 270 | //cout << "short connect and close timer" << endl; 271 | http_user_list[socketfd]->close_conn("write over"); 272 | if (timer) 273 | m_timer_list.del_timer(timer); 274 | } 275 | } 276 | if (timeout) 277 | { 278 | timer_handler(); 279 | timeout = false; 280 | } 281 | } 282 | } 283 | close(epollfd); 284 | close(listenfd); 285 | destroy_user_list>(http_user_list); 286 | destroy_user_list>(client_data_list); 287 | cout << "close ok" << endl; 288 | 289 | return 0; 290 | } -------------------------------------------------------------------------------- /makefile: -------------------------------------------------------------------------------- 1 | server: main.cpp ./threadpool/pool.h ./http/http_conn.cpp ./http/http_conn.h ./lock/lock.h ./userdata/redis.h ./userdata/redis.cpp 2 | g++ -o server main.cpp ./threadpool/pool.h ./http/http_conn.cpp ./http/http_conn.h ./lock/lock.h ./userdata/redis.h ./userdata/redis.cpp -lpthread -lhiredis -std=c++11 3 | 4 | clean: 5 | rm -r server 6 | -------------------------------------------------------------------------------- /root/1.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/1.jpg -------------------------------------------------------------------------------- /root/AryaStark.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/AryaStark.png -------------------------------------------------------------------------------- /root/DaenerysTargaryen.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/DaenerysTargaryen.png -------------------------------------------------------------------------------- /root/JaimeLannister.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/JaimeLannister.png -------------------------------------------------------------------------------- /root/JohnSnow.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/JohnSnow.png -------------------------------------------------------------------------------- /root/NedStark.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/NedStark.png -------------------------------------------------------------------------------- /root/TyrionLannister.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chaishilin/JohnSnow/d3a2fd4d333594e9fcd91e12429a5b2b5afc6259/root/TyrionLannister.png -------------------------------------------------------------------------------- /root/base.html: -------------------------------------------------------------------------------- 1 | 2 | 3 |
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