![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424001111-6809819f02006.gif\")
<\/p>\n📢\u535a\u5ba2\u4e3b\u9875：https:\/\/blog.csdn.net\/2301_779549673 📢\u535a\u5ba2\u4ed3\u5e93：https:\/\/gitee.com\/JohnKingW\/linux_test\/tree\/master\/lesson 📢\u6b22\u8fce\u70b9\u8d5e 👍 \u6536\u85cf \u2b50\u7559\u8a00 📝 \u5982\u6709\u9519\u8bef\u656c\u8bf7\u6307\u6b63！ 📢\u672c\u6587\u7531 JohnKi \u539f\u521b，\u9996\u53d1\u4e8e CSDN🙉 📢\u672a\u6765\u5f88\u957f，\u503c\u5f97\u6211\u4eec\u5168\u529b\u5954\u8d74\u66f4\u7f8e\u597d\u7684\u751f\u6d3b\u2728<\/p>\n
<\/p>\n
![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424001111-6809819f26257.gif\")
<\/p>\n<\/p>\n
\u524d\u9762\u51e0\u7bc7\u6587\u7ae0\u4e2d\u4f7f\u7528UDP\u534f\u8bae\u5b9e\u73b0\u4e86\u76f8\u5173\u529f\u80fd<\/font> ，\u8fd9\u7bc7\u4f7f\u7528TCP\u534f\u8bae\u5b9e\u73b0\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u7684\u901a\u4fe1<\/font><\/p>\n \u76f8\u6bd4\u4e0eUDP\u534f\u8bae，TCP\u534f\u8bae\u66f4\u52a0\u53ef\u9760，\u4e5f\u66f4\u52a0\u590d\u6742！\u4e0eUDP\u7c7b\u4f3c，\u6211\u4eec\u5148\u5199\u4e3b\u51fd\u6570，\u7136\u540e\u5b9e\u73b0\u76f8\u5173\u51fd\u6570！<\/p>\n \u670d\u52a1\u7aef\u4e3b\u51fd\u6570\u4f7f\u7528\u667a\u80fd\u6307\u9488\u6784\u9020Server\u5bf9\u8c61，\u7136\u540e\u8c03\u7528\u521d\u59cb\u5316\u4e0e\u6267\u884c\u51fd\u6570，\u8c03\u7528\u4e3b\u51fd\u6570\u4f7f\u7528\u8be5\u53ef\u6267\u884c\u7a0b\u5e8f + \u7aef\u53e3\u53f7！<\/font><\/p>\n #include "TcpServer.hpp"<\/p>\n int main(int argc, char* argv[]){ std::unique_ptr<TcpServer> tsvr = std::make_unique<TcpServer>(port);<\/p>\n tsvr->InitServer(); return 0; \u4e0e UDP \u540c\u6837\u7684，\u6211\u4eec\u5148\u679a\u4e3e\u9519\u8bef\u60c5\u51b5<\/font>，\u5c06\u5176\u653e\u5728 common.hpp \u4e2d<\/p>\n enum { \u6211\u4eec\u8fd9\u91cc\u5148\u5b9e\u73b0\u6700\u57fa\u672c\u7684 TCP \u670d\u52a1\u5668，<\/font>\u57fa\u672c\u6210\u5458\u6709\u7aef\u53e3\u53f7，\u6587\u4ef6\u63cf\u8ff0\u7b26，\u4e0e\u8fd0\u884c\u72b6\u6001<\/font><\/p>\n class TcpServer{ private: \u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u6210\u5458\u53d8\u91cf，\u6790\u6784\u51fd\u6570\u65e0\u9700\u5904\u7406！<\/font><\/p>\n static const uint16_t gport = 8080; \u521d\u59cb\u5316\u51fd\u6570\u4e3b\u8981\u5206\u4e3a\u4e09\u6b65：<\/p>\n \u83b7\u53d6\u8fde\u63a5\u9700\u8981\u4f7f\u7528 listen \u51fd\u6570(\u5c06\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u76d1\u542c\u6a21\u5f0f，\u4ee5\u4fbf\u80fd\u591f\u63a5\u53d7\u8fdb\u5165\u7684\u8fde\u63a5\u8bf7\u6c42<\/font>)<\/p>\n \u00b7listen\u00b7 \u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a\u961f\u5217，\u7528\u6765\u4fdd\u5b58\u7b49\u5f85\u8fde\u63a5\u5730\u5ba2\u6237\u7aef<\/font>，\u6211\u4eec\u53ef\u4ee5\u4e8b\u5148\u8bbe\u7f6e\u4e00\u4e2a #define BACKLOG 8 \u6765\u5b9a\u4e49\u8fd9\u4e2a\u961f\u5217\u957f\u5ea6<\/p>\n void InitServer() { struct sockaddr_in local; \/\/ 2. \u7ed1\u5b9a socket \/\/ 3. \u56e0\u4e3a tcp \u662f\u9762\u5411\u8fde\u63a5\u7684，tcp\u9700\u8981\u672a\u6765\u4e0d\u65ad\u5730\u83b7\u53d6\u8fde\u63a5 \u6211\u4eec\u5148\u5c06 Loop() \u51fd\u6570\u8bbe\u8ba1\u6210\u6b7b\u5faa\u73af，\u9a8c\u8bc1\u4e00\u4e0b \u521d\u59cb\u5316\u51fd\u6570 \u7684\u6b63\u786e\u6027<\/font><\/p>\n \/\/ \u6d4b\u8bd5 \u6267\u884c\u670d\u52a1\u51fd\u6570\u4e3b\u8981\u5206\u4e3a\u4e24\u6b65：<\/p>\n \u5de5\u4f5c\u673a\u5236：<\/p>\n \u6ce8\u610f：tcp\u534f\u8bae\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528read，write\u51fd\u6570\u8bfb\u5199\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u5185\u5bb9(\u56e0\u4e3atcp\u662f\u9762\u5411\u5b57\u8282\u6d41\u7684)！<\/font><\/p>\n \/\/ server – 0 \u5355\u6267\u884c\u6d41\u7248\u672c \/\/ 1. \u83b7\u53d6\u65b0\u8fde\u63a5 \/\/ \u83b7\u53d6\u6210\u529f \/\/ 2. \u5199\u6587\u4ef6 \u200b\u5de5\u4f5c\u673a\u5236：<\/p>\n void Loop() { \/\/ 1. \u83b7\u53d6\u65b0\u8fde\u63a5 \/\/ \u83b7\u53d6\u6210\u529f \/\/ \u5b59\u5b50\u8fdb\u7a0b\u7684\u521b\u5efa \/\/ \u5b59\u5b50\u8fdb\u7a0b\u6267\u884c\u5b9e\u9645\u670d\u52a1\u903b\u8f91 \/\/ 2. \u5199\u6587\u4ef6 \u53cc\u91cd fork() \u7684\u6838\u5fc3\u76ee\u7684<\/p>\n \u200b\u5de5\u4f5c\u673a\u5236：<\/p>\n \/\/ server – 2 \u591a\u7ebf\u7a0b\u7248\u672c \/\/ 1. \u83b7\u53d6\u65b0\u8fde\u63a5 \/\/ \u83b7\u53d6\u6210\u529f \/\/ 2. \u5199\u6587\u4ef6 \u5c06\u6267\u884c\u670d\u52a1\u7684\u51fd\u6570\u5165\u7ebf\u7a0b\u6c60\u961f\u5217，\u8be5\u51fd\u6570\u9700\u8981\u662f\u53c2\u6570\u4e3a\u7a7a\u548c\u8fd4\u56de\u503c\u4e3avoid\u7684\u51fd\u6570，\u56e0\u6b64\u9700\u8981bind\u7ed1\u5b9a\u51fd\u6570！<\/p>\n using task_t = std::function<void(int sockfd, InetAddr& cli)>;<\/p>\n \/\/ server – 3 \u5185\u5b58\u6c60\u7248\u672c \/\/ 1. \u83b7\u53d6\u65b0\u8fde\u63a5 \/\/ \u83b7\u53d6\u6210\u529f \/\/ 2. \u5199\u6587\u4ef6 #include "TcpClient.hpp"<\/p>\n int main(int argc, char* argv[]){ std::string serverip = argv[1]; \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57 \/\/ 2. \u8bbe\u7f6e\u670d\u52a1\u5668\u5730\u5740 \/\/ 3. \u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5 \/\/ 4. \u53d1\u9001\u6d88\u606f write(sockfd, mag.c_str(), mag.size()); \/\/ 5. \u5173\u95ed\u5957\u63a5\u5b57 return 0; \u672c\u7bc7\u535a\u6587\u5bf9 \u3010Linux\u7f51\u7edc\u3011\u5404\u7248\u672cTCP\u670d\u52a1\u5668\u6784\u5efa – \u4ece\u7406\u89e3\u5230\u5b9e\u73b0 \u505a\u4e86\u4e00\u4e2a\u8f83\u4e3a\u8be6\u7ec6\u7684\u4ecb\u7ecd，\u4e0d\u77e5\u9053\u5bf9\u4f60\u6709\u6ca1\u6709\u5e2e\u52a9\u5462<\/p>\n \u89c9\u5f97\u535a\u4e3b\u5199\u5f97\u8fd8\u4e0d\u9519\u7684\u4e09\u8fde\u652f\u6301\u4e0b\u5427！\u4f1a\u7ee7\u7eed\u52aa\u529b\u7684~<\/p>\n","protected":false},"excerpt":{"rendered":" \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb455\u6b21\uff0c\u70b9\u8d5e39\u6b21\uff0c\u6536\u85cf35\u6b21\u3002\u672c\u7bc7\u535a\u6587\u5bf9\u3010Linux\u7f51\u7edc\u3011\u5404\u7248\u672cTCP\u670d\u52a1\u5668\u6784\u5efa – \u4ece\u7406\u89e3\u5230\u5b9e\u73b0\u505a\u4e86\u4e00\u4e2a\u8f83\u4e3a\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff0c\u4e0d\u77e5\u9053\u5bf9\u4f60\u6709\u6ca1\u6709\u5e2e\u52a9\u5462\u89c9\u5f97\u535a\u4e3b\u5199\u5f97\u8fd8\u4e0d\u9519\u7684\u4e09\u8fde\u652f\u6301\u4e0b\u5427\uff01\u4f1a\u7ee7\u7eed\u52aa\u529b\u7684~<\/p>\n","protected":false},"author":2,"featured_media":32409,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,78],"topic":[],"class_list":["post-32413","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-43","tag-78"],"yoast_head":"\n🏳\ufe0f\u200d🌈\u4e00\u3001TcpServer.cpp<\/h2>\n
\n if(argc != 2){
\n std::cerr << "Usage: " << argv[0] << " port" << std::endl;
\n Die(1);
\n }
\n uint16_t port = std::stoi(argv[1]);<\/p>\n
\n tsvr->Loop();<\/p>\n
\n}<\/p>\n🏳\ufe0f\u200d🌈\u4e8c\u3001TcpServer.hpp<\/h2>\n
2.1 \u679a\u4e3e\u9519\u8bef\u60c5\u51b5<\/h3>\n
\n USAGE_ERR = 1,
\n SOCKET_ERR,
\n BIND_ERR,
\n LISTEN_ERR
\n};<\/p>\n2.2 \u57fa\u672c\u7ed3\u6784<\/h3>\n
\n public:
\n TcpServer(){}
\n void InitServer(){}
\n void Loop(int sockfd){}
\n ~TcpServer(){}<\/p>\n
\n int _listensockfd; \/\/ \u76d1\u542csocket
\n uint16_t _port;
\n bool _isrunning;
\n};<\/p>\n2.3 \u6784\u9020\u51fd\u6570\u3001\u6790\u6784\u51fd\u6570<\/h3>\n
\n
\n\/\/ \u6784\u9020\u51fd\u6570
\nTcpServer(uint16_t port = gport)
\n :_port(port),_sockfd(gsockfd),_isrunning(false){}
\n\/\/ \u6790\u6784\u51fd\u6570
\n~TcpServer(){}<\/p>\n2.4 \u521d\u59cb\u5316\u65b9\u6cd5<\/h3>\n
\n \/\/ 1. \u521b\u5efa socket
\n _listensockfd = ::socket(AF_INET, SOCK_STREAM, 0);
\n if (_listensockfd < 0) {
\n LOG(LogLevel::ERROR) << "create socket error: " << strerror(errno);
\n Die(2);
\n }
\n LOG(LogLevel::INFO) << "create sockfd success: " << _listensockfd;<\/p>\n
\n memset(&local, 0, sizeof(local));
\n local.sin_family = AF_INET;
\n local.sin_port = htons(_port);
\n local.sin_addr.s_addr = htonl(INADDR_ANY);<\/p>\n
\n if (::bind(_listensockfd, CONV(&local), sizeof(local)) < 0) {
\n LOG(LogLevel::ERROR) << "bind socket error: " << strerror(errno);
\n Die(3);
\n }
\n LOG(LogLevel::INFO) << "bind sockfd success: " << _listensockfd;<\/p>\n
\n \/\/ listen \u5c31\u662f\u76d1\u542c\u8fde\u63a5\u7684\u610f\u601d，\u6240\u4ee5\u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a\u961f\u5217，\u6765\u4fdd\u5b58\u7b49\u5f85\u8fde\u63a5\u7684\u5ba2\u6237\u7aef
\n \/\/ \u961f\u5217\u7684\u957f\u5ea6\u4e3a 8，\u8868\u793a\u6700\u591a\u53ef\u4ee5\u6709 8 \u4e2a\u5ba2\u6237\u7aef\u7b49\u5f85\u8fde\u63a5
\n \/\/ listen(int sockfd, int backlog)
\n \/\/ sockfd \u5c31\u662f\u4e4b\u524d\u521b\u5efa\u7684 socket \u53e5\u67c4
\n \/\/ backlog \u5c31\u662f\u961f\u5217\u7684\u957f\u5ea6
\n \/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de 0，\u5931\u8d25\u8fd4\u56de -1
\n if (::listen(_listensockfd, BACKLOG) < 0) {
\n LOG(LogLevel::ERROR) << "listen socket error: " << strerror(errno);
\n Die(4);
\n }
\n LOG(LogLevel::INFO) << "listen sockfd success: " << _listensockfd;
\n}<\/p>\n
\nvoid Loop() {
\n _isrunning = true;
\n while (_isrunning) {
\n sleep(1);
\n }
\n _isrunning = false;
\n}<\/p>\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424001111-6809819f4d83c.png\")
<\/p>\n2.5 \u5faa\u73af\u76d1\u542c<\/h3>\n
![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424001111-6809819fb0382.png\")
2. \u6267\u884c\u670d\u52a1<\/font> (\u524d\u63d0\u662f\u83b7\u53d6\u5230\u65b0\u8fde\u63a5)<\/p>\n2.5.1 server 0 – \u5355\u6267\u884c\u6d41\u7248\u672c<\/h4>\n
\n
\n\/\/ \u200b\u5de5\u4f5c\u673a\u5236：\u5355\u7ebf\u7a0b\u901a\u8fc7while(1)\u5faa\u73af\u4f9d\u6b21\u5904\u7406\u6bcf\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42，\u5904\u7406\u5b8c\u4e00\u4e2a\u8bf7\u6c42\u540e\u624d\u80fd\u5904\u7406\u4e0b\u4e00\u4e2a\u3002
\nvoid Loop() {
\n _isrunning = true;
\n while (_isrunning) {
\n struct sockaddr_in client;
\n socklen_t len = sizeof(client);<\/p>\n
\n int sockfd = ::accept(_listensockfd, CONV(&client), &len);
\n if (sockfd < 0) {
\n LOG(LogLevel::ERROR) << "accept socket error: " << strerror(errno);
\n continue;
\n }
\n InetAddr cli(client);
\n LOG(LogLevel::INFO) << "accept new connection from " << cli.AddrStr()
\n << " sockfd: " << sockfd;<\/p>\n
\n Server(sockfd, cli);
\n }
\n}
\nvoid Server(int sockfd, InetAddr& cli) {
\n \/\/ \u957f\u670d\u52a1
\n while (true) {
\n char inbuffer[1024]; \/\/ \u5f53\u4f5c\u5b57\u7b26\u4e32
\n \/\/ 1. \u8bfb\u6587\u4ef6
\n \/\/ read
\n \/\/ \u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7f13\u51b2\u533a，\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7684\u5b57\u8282\u6570
\n \/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de\u8bfb\u5165\u7684\u5b57\u8282\u6570，\u5931\u8d25\u8fd4\u56de -1
\n ssize_t n = ::read(sockfd, inbuffer, sizeof(inbuffer) – 1);
\n if (n > 0) {
\n inbuffer[n] = 0;
\n LOG(LogLevel::INFO)
\n << "get msg from " << cli.AddrStr() << " msg: " << inbuffer;
\n std::string echo_string = "[server echo]# ";
\n echo_string += inbuffer;<\/p>\n
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n } else if (n == 0) {
\n LOG(LogLevel::INFO) << "client " << cli.AddrStr() << " closed";
\n break;
\n } else {
\n LOG(LogLevel::ERROR) << "read socket error: " << strerror(errno);
\n break;
\n }
\n }
\n ::close(sockfd);
\n}<\/p>\n2.5.2 server 1 – \u591a\u8fdb\u7a0b\u7248\u672c<\/h4>\n
\n
\n _isrunning = true;
\n while (_isrunning) {
\n struct sockaddr_in client;
\n socklen_t len = sizeof(client);<\/p>\n
\n int sockfd = ::accept(_listensockfd, CONV(&client), &len);
\n if (sockfd < 0) {
\n LOG(LogLevel::ERROR) << "accept socket error: " << strerror(errno);
\n continue;
\n }
\n InetAddr cli(client);
\n LOG(LogLevel::INFO) << "accept new connection from " << cli.AddrStr()
\n << " sockfd: " << sockfd;<\/p>\n
\n pid_t id = fork();
\n if (id == 0) { \/\/ \u5b50\u8fdb\u7a0b
\n ::close(_listensockfd); \/\/ \u5173\u95ed\u76d1\u542c\u5957\u63a5\u5b57（\u5b50\u8fdb\u7a0b\u4e0d\u9700\u8981\u76d1\u542c）<\/p>\n
\n if (fork() > 0)
\n exit(0); \/\/ \u7236\u8fdb\u7a0b（\u5b50\u8fdb\u7a0b）\u9000\u51fa，\u5b59\u5b50\u8fdb\u7a0b\u7ee7\u7eed\u8fd0\u884c<\/p>\n
\n Server(sockfd, cli);
\n exit(0);
\n }
\n \/\/ \u7236\u8fdb\u7a0b（\u4e3b\u8fdb\u7a0b）
\n ::close(sockfd); \/\/ \u5173\u95ed\u8fde\u63a5\u5957\u63a5\u5b57（\u7236\u8fdb\u7a0b\u4e0d\u5904\u7406\u5177\u4f53\u4e1a\u52a1）
\n int n = waitpid(id, nullptr, 0); \/\/ \u7b49\u5f85\u5b50\u8fdb\u7a0b\u9000\u51fa
\n if (n > 0) {
\n LOG(LogLevel::INFO) << "wait chid success";
\n }
\n }
\n _isrunning = false;
\n}
\nvoid Server(int sockfd, InetAddr& cli) {
\n \/\/ \u957f\u670d\u52a1
\n while (true) {
\n char inbuffer[1024]; \/\/ \u5f53\u4f5c\u5b57\u7b26\u4e32
\n \/\/ 1. \u8bfb\u6587\u4ef6
\n \/\/ read
\n \/\/ \u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7f13\u51b2\u533a，\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7684\u5b57\u8282\u6570
\n \/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de\u8bfb\u5165\u7684\u5b57\u8282\u6570，\u5931\u8d25\u8fd4\u56de -1
\n ssize_t n = ::read(sockfd, inbuffer, sizeof(inbuffer) – 1);
\n if (n > 0) {
\n inbuffer[n] = 0;
\n LOG(LogLevel::INFO)
\n << "get msg from " << cli.AddrStr() << " msg: " << inbuffer;
\n std::string echo_string = "[server echo]# ";
\n echo_string += inbuffer;<\/p>\n
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n } else if (n == 0) {
\n LOG(LogLevel::INFO) << "client " << cli.AddrStr() << " closed";
\n break;
\n } else {
\n LOG(LogLevel::ERROR) << "read socket error: " << strerror(errno);
\n break;
\n }
\n }
\n ::close(sockfd);
\n}<\/p>\n\n
\n
\n
\n
2.5.3 server 2 – \u591a\u7ebf\u7a0b\u7248\u672c<\/h4>\n
\n
\n \/\/ \u4e3a\u6bcf\u4e2a\u65b0\u8fde\u63a5\u5206\u914d\u72ec\u7acb\u7684\u7ebf\u7a0b\u5904\u7406\u4e1a\u52a1\u903b\u8f91
\n \/\/ （Loop \u51fd\u6570）\u901a\u8fc7 accept \u5faa\u73af\u76d1\u542c\u65b0\u8fde\u63a5，\u4e3a\u6bcf\u4e2a\u65b0\u8fde\u63a5\u521b\u5efa\u7ebf\u7a0b（pthread_create）\u4f20\u9012\u8fde\u63a5\u4fe1\u606f\u7ed9\u5b50\u7ebf\u7a0b（\u901a\u8fc7 ThreadDate \u7ed3\u6784\u4f53）
\n \/\/ （Execute \u51fd\u6570）\u200b\u200b\u8c03\u7528 pthread_detach \u5206\u79bb\u81ea\u8eab（\u907f\u514d\u4e3b\u7ebf\u7a0b\u8c03\u7528 pthread_join）\u6267\u884c Server \u51fd\u6570\u5904\u7406\u5177\u4f53\u4e1a\u52a1\u903b\u8f91\u7ebf\u7a0b\u7ed3\u675f\u540e\u81ea\u52a8\u91ca\u653e\u8d44\u6e90（\u901a\u8fc7 delete td）
\n \/\/ （Server \u51fd\u6570）\u200b\u5faa\u73af\u8bfb\u53d6\u5ba2\u6237\u7aef\u6570\u636e（read），\u5904\u7406\u4e1a\u52a1\u903b\u8f91（\u793a\u4f8b\u4e2d\u7684\u56de\u663e\u670d\u52a1），\u53d1\u9001\u54cd\u5e94（write）\u5173\u95ed\u8fde\u63a5（close(sockfd)）
\n void Loop(){
\n _isrunning = true;
\n while(_isrunning){
\n struct sockaddr_in client;
\n socklen_t len = sizeof(client);<\/p>\n
\n int sockfd = ::accept(_listensockfd, CONV(&client), &len);
\n if(sockfd < 0){
\n LOG(LogLevel::ERROR) << "accept socket error: " << strerror(errno);
\n continue;
\n }
\n InetAddr cli(client);
\n LOG(LogLevel::INFO) << "accept new connection from " << cli.AddrStr() << " sockfd: " << sockfd;<\/p>\n
\n pthread_t tid;
\n ThreadDate* td = new ThreadDate(sockfd, this, cli);
\n \/\/ pthread_create \u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u7ebf\u7a0bid，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u7ebf\u7a0b\u5c5e\u6027，\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u7ebf\u7a0b\u51fd\u6570，\u7b2c\u56db\u4e2a\u53c2\u6570\u662f\u7ebf\u7a0b\u51fd\u6570\u53c2\u6570
\n pthread_create(&tid, nullptr, Execute, td);
\n }
\n _isrunning = false;
\n }
\n \/\/ \u7ebf\u7a0b\u51fd\u6570\u53c2\u6570\u5bf9\u8c61
\n class ThreadDate{
\n public:
\n int _sockfd;
\n TcpServer* _self;
\n InetAddr _addr;
\n public:
\n ThreadDate(int sockfd, TcpServer* self, const InetAddr& addr)
\n : _sockfd(sockfd), _self(self), _addr(addr)
\n {}
\n };
\n \/\/ \u7ebf\u7a0b\u51fd\u6570
\n static void* Execute(void* args){
\n ThreadDate* td = static_cast<ThreadDate*>(args);
\n \/\/ \u5b50\u7ebf\u7a0b\u7ed3\u675f\u540e\u7531\u7cfb\u7edf\u81ea\u52a8\u56de\u6536\u8d44\u6e90，\u65e0\u9700\u4e3b\u7ebf\u7a0b\u8c03\u7528 pthread_join
\n pthread_detach(pthread_self()); \/\/ \u5206\u79bb\u65b0\u7ebf\u7a0b，\u65e0\u9700\u4e3b\u7ebf\u7a0b\u56de\u6536
\n td->_self->Server(td->_sockfd, td->_addr);
\n delete td;
\n return nullptr;
\n }
\n void Server(int sockfd, InetAddr& cli){
\n \/\/ \u957f\u670d\u52a1
\n while(true){
\n char inbuffer[1024]; \/\/ \u5f53\u4f5c\u5b57\u7b26\u4e32
\n \/\/ 1. \u8bfb\u6587\u4ef6
\n \/\/ read \u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7f13\u51b2\u533a，\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7684\u5b57\u8282\u6570
\n \/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de\u8bfb\u5165\u7684\u5b57\u8282\u6570，\u5931\u8d25\u8fd4\u56de -1
\n ssize_t n = ::read(sockfd, inbuffer, sizeof(inbuffer) – 1);
\n if(n > 0){
\n inbuffer[n] = 0;
\n LOG(LogLevel::INFO) << "get msg from " << cli.AddrStr() << " msg: " << inbuffer;
\n std::string echo_string = "[server echo]# ";
\n echo_string += inbuffer;<\/p>\n
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n }
\n else if(n == 0){
\n LOG(LogLevel::INFO) << "client " << cli.AddrStr() << " closed";
\n break;
\n }
\n else{
\n LOG(LogLevel::ERROR) << "read socket error: " << strerror(errno);
\n break;
\n }
\n }
\n ::close(sockfd);
\n }<\/p>\n2.5.4 server 3 – \u5185\u5b58\u6c60<\/h4>\n
\nvoid Loop() {
\n _isrunning = true;
\n while (_isrunning) {
\n struct sockaddr_in client;
\n socklen_t len = sizeof(client);<\/p>\n
\n int sockfd = ::accept(_listensockfd, CONV(&client), &len);
\n if (sockfd < 0) {
\n LOG(LogLevel::ERROR) << "accept socket error: " << strerror(errno);
\n continue;
\n }
\n InetAddr cli(client);
\n LOG(LogLevel::INFO) << "accept new connection from " << cli.AddrStr()
\n << " sockfd: " << sockfd;<\/p>\n
\n task_t task = std::bind(&TcpServer::Server, this, sockfd, cli);
\n ThreadPool<task_t>::getInstance()->Equeue(task);
\n }
\n _isrunning = false;
\n}
\nvoid Server(int sockfd, InetAddr& cli) {
\n \/\/ \u957f\u670d\u52a1
\n while (true) {
\n char inbuffer[1024]; \/\/ \u5f53\u4f5c\u5b57\u7b26\u4e32
\n \/\/ 1. \u8bfb\u6587\u4ef6
\n \/\/ read
\n \/\/ \u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7f13\u51b2\u533a，\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u8bfb\u5165\u7684\u5b57\u8282\u6570
\n \/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de\u8bfb\u5165\u7684\u5b57\u8282\u6570，\u5931\u8d25\u8fd4\u56de -1
\n ssize_t n = ::read(sockfd, inbuffer, sizeof(inbuffer) – 1);
\n if (n > 0) {
\n inbuffer[n] = 0;
\n LOG(LogLevel::INFO)
\n << "get msg from " << cli.AddrStr() << " msg: " << inbuffer;
\n std::string echo_string = "[server echo]# ";
\n echo_string += inbuffer;<\/p>\n
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n } else if (n == 0) {
\n LOG(LogLevel::INFO) << "client " << cli.AddrStr() << " closed";
\n break;
\n } else {
\n LOG(LogLevel::ERROR) << "read socket error: " << strerror(errno);
\n break;
\n }
\n }
\n ::close(sockfd);
\n}<\/p>\n🏳\ufe0f\u200d🌈\u4e09\u3001TcpClient.cpp<\/h2>\n
\n if(argc != 3){
\n std::cerr << "Usage: " << argv[0] << " <server_ip> <server_port>" << std::endl;
\n Die(1);
\n }<\/p>\n
\n uint16_t serverport = std::stoi(argv[2]);<\/p>\n
\n \/\/ AF_INET: IPv4\u534f\u8bae
\n \/\/ SOCK_STREAM: TCP\u534f\u8bae
\n \/\/ 0: \u8868\u793a\u9ed8\u8ba4\u534f\u8bae
\n int sockfd = ::socket(AF_INET, SOCK_STREAM, 0);
\n if(sockfd < 0){
\n std::cerr << "Create socket error: " << std::strerror(errno) << std::endl;
\n Die(2);
\n }<\/p>\n
\n struct sockaddr_in server;
\n memset(&server, 0, sizeof(server));
\n server.sin_family = AF_INET; \/\/ IPv4\u534f\u8bae
\n server.sin_port = htons(serverport); \/\/ \u7aef\u53e3\u53f7
\n \/\/ \u8fd9\u53e5\u8bdd\u8868\u793a\u5c06\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684IP\u5730\u5740\u8f6c\u6362\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f\u7684IP\u5730\u5740
\n \/\/ inet_pton\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5c06\u70b9\u5206\u5341\u8fdb\u5236\u7684IP\u5730\u5740\u8f6c\u6362\u4e3a\u7f51\u7edc\u5b57\u8282\u5e8f\u7684IP\u5730\u5740
\n \/\/ \u8fd9\u91cc\u7684AF_INET\u8868\u793aIPv4\u534f\u8bae
\n \/\/ \u8fd9\u91cc\u7684serverip.c_str()\u8868\u793aIP\u5730\u5740\u7684\u5b57\u7b26\u4e32\u5f62\u5f0f
\n \/\/ &server.sin_addr\u8868\u793a\u5c06IP\u5730\u5740\u5b58\u50a8\u5230sin_addr\u6210\u5458\u53d8\u91cf\u4e2d
\n ::inet_pton(AF_INET, serverip.c_str(), &server.sin_addr); \/\/ IP\u5730\u5740<\/p>\n
\n int n = ::connect(sockfd, CONV(&server), sizeof(server));
\n if(n < 0){
\n std::cerr << "Connect error: " << std::strerror(errno) << std::endl;
\n Die(5);
\n }<\/p>\n
\n while(true){
\n std::string mag;
\n std::cout << "Enter# ";
\n std::getline(std::cin, mag);<\/p>\n
\n char echo_buf[1024];
\n n = read(sockfd, echo_buf, sizeof(echo_buf));
\n if(n > 0){
\n echo_buf[n] = 0;
\n std::cout << "Echo: " << echo_buf << std::endl;
\n }
\n else{
\n break;
\n }
\n }<\/p>\n
\n ::close(sockfd);<\/p>\n
\n}<\/p>\n
\n👥\u603b\u7ed3<\/h2>\n