\u670d\u52a1\u5668<\/h2>\n
\u6846\u67b6\u8bbe\u8ba1<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TCP\u534f\u8bae\u4f5c\u4e3a\u9762\u5411\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u534f\u8bae，\u5176\u4e0d\u7ef4\u62a4\u62a5\u6587\u8fb9\u754c\u7684\u7279\u70b9\u53ef\u80fd\u5bfc\u81f4\u7c98\u5305\/\u534a\u5305\u95ee\u9898\u3002\u4e3a\u6b64\u6211\u4eec\u9700\u8981\u8bbe\u8ba1\u5e94\u7528\u5c42\u534f\u8bae，\u901a\u8fc7\u62a5\u6587\u5934\u90e8\u6807\u8bc6\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u673a\u5236\u786e\u4fdd\u53ef\u9760\u901a\u4fe1\u3002\u82e5\u60a8\u5bf9\u4ee5\u4e0a\u5185\u5bb9\u5f88\u61f5\u8fd9\u5f88\u6b63\u5e38，\u5230\u4e0b\u6587\u89e3\u51b3\u81ea\u5b9a\u4e49\u534f\u8bae\u65f6\u4f1a\u7ec6\u8bb2\u3002<\/p>\n
\u9996\u5148\u6211\u4eec\u68b3\u7406\u672c\u6587\u8981\u5b8c\u6210\u7684\u6838\u5fc3\u6587\u4ef6\u53ca\u529f\u80fd，\u5982\u4e0b：<\/p>\n
1.\u901a\u4fe1<\/p>\n
- \n
- TcpServer.hpp：\u670d\u52a1\u5668\u76f8\u5173\u7684\u7c7b\u4ee5\u53ca\u7c7b\u65b9\u6cd5\u7684\u5b9e\u73b0\u2014\u2014\u4e3b\u8981\u5b8c\u6210\u901a\u4fe1\u529f\u80fd\u3002<\/li>\n
- TcpServer.cc：\u670d\u52a1\u5668\u4e3b\u51fd\u6570（main）\u7684\u5b9e\u73b0\u2014\u2014\u5bf9\u670d\u52a1\u5668\u63a5\u53e3\u7684\u8c03\u7528，\u5373\u542f\u52a8\u670d\u52a1\u5668\u3002<\/li>\n
- TcpClient.cc：\u5ba2\u6237\u7aef\u4e3b\u51fd\u6570（main）\u7684\u5b9e\u73b0\u2014\u2014\u542f\u52a8\u5ba2\u6237\u7aef，\u5e76\u4e0e\u670d\u52a1\u5668\u901a\u4fe1\u3002<\/li>\n<\/ul>\n
2.\u534f\u8bae<\/p>\n
- \n
- Protocol.hpp：\u81ea\u5b9a\u4e49\u534f\u8bae，\u5b8c\u6210\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u3001\u5c01\u5305，\u89e3\u5305\u7b49\u3002<\/li>\n<\/ul>\n
3.\u4e1a\u52a1<\/p>\n
- \n
- NetCal.hpp：\u7f51\u7edc\u8ba1\u7b97\u5668\u7684\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n
\u4e00\u3001\u901a\u4fe1<\/h2>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7531\u4e8eC++\u6807\u51c6\u5e93\u672a\u539f\u751f\u63d0\u4f9b\u7f51\u7edc\u901a\u4fe1\u652f\u6301，\u800c\u7f51\u7edc\u7f16\u7a0b\u4e2d\u8fde\u63a5\u7ba1\u7406\u3001\u6570\u636e\u6536\u53d1\u7b49\u5e95\u5c42\u64cd\u4f5c\u867d\u9075\u5faa\u56fa\u5b9a\u6a21\u5f0f\u5374\u5b58\u5728\u5927\u91cf\u91cd\u590d\u52b3\u52a8，\u56e0\u6b64\u6211\u4eec\u5c06\u9996\u5148\u5b9e\u73b0\u4e00\u4e2a\u9ad8\u5185\u805a\u7684Socket\u5c01\u88c5\u7c7b\u3002\u8be5\u6a21\u5757\u901a\u8fc7\u62bd\u8c61TCP\u901a\u4fe1\u7684\u6838\u5fc3\u6d41\u7a0b，\u7edf\u4e00\u5904\u7406\u8fde\u63a5\u5efa\u7acb\u7ef4\u62a4\u3001\u6536\u53d1\u6570\u636e\u7b49\u57fa\u7840\u529f\u80fd，\u4e3a\u540e\u7eed\u4e1a\u52a1\u5f00\u53d1\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u901a\u4fe1\u57fa\u7840\u8bbe\u65bd\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f，\u5373\u57fa\u7c7bSocket\u5927\u90e8\u5206\u65b9\u6cd5\u90fd\u662f\u7eaf\u865a\u65b9\u6cd5，\u8ba9Tcp\u534f\u8bae\u7c7b\u548cUdp\u7c7b\u4f5c\u4e3a\u5b50\u7c7b\u8fdb\u884c\u7ee7\u627f\u3002<\/p>\n
\u521b\u5efaSocket.hpp\u6587\u4ef6，\u5b9e\u73b0\u7c7b\u7684\u58f0\u660e，\u5982\u4e0b：<\/p>\n
static const int gbacklog = 8;\/\/\u5141\u8bb88\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5
\nnamespace SocketMoudule
\n{
\n class Socket
\n {
\n public:
\n virtual void SocketOrDie() = 0; \/\/\u6253\u5f00\u7f51\u7edc\u6587\u4ef6
\n virtual void BindOrDie(uint16_t) = 0; \/\/\u7ed1\u5b9a\u7aef\u53e3
\n virtual void ListenOrDie(int) = 0; \/\/\u76d1\u542c
\n virtual shared_ptr<Socket> Accept(InetAddr *) = 0; \/\/\u63a5\u6536\u8bf7\u6c42
\n virtual void Close() = 0; \/\/\u5173\u95ed\u7f51\u7edc\u6587\u4ef6
\n virtual int Recv(string *) = 0; \/\/\u6536\u6570\u636e
\n virtual int Send(string &) = 0; \/\/\u53d1\u6570\u636e
\n virtual void Connect(const std::string &, uint16_t) = 0; \/\/\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5<\/p>\npublic:
\n void BuildTcpServerMoudule(uint16_t port, int backlog = gbacklog)
\n {
\n \/\/\u521d\u59cb\u5316
\n SocketOrDie();
\n BindOrDie(port);
\n ListenOrDie(backlog);
\n }
\n void BuildUdpServerMoudule(uint16_t port)
\n {
\n void SocketOrDie();
\n void BindOrDie(port);
\n }
\n };
\n \/\/Tcp\u534f\u8bae\u901a\u4fe1
\n class TcpSocket : public Socket
\n {
\n public:
\n private:
\n int _socketfd;
\n };
\n \/\/Udp\u534f\u8bae\u901a\u4fe1
\n class UdpSocket : public Socket
\n {
\n public:
\n private:
\n };
\n} <\/p>\n\u5176\u4e2dInetAddr\u7c7b\u662f\u5bf9sockaddr_in\u7b49\u76f8\u5173\u4fe1\u606f\u7684\u5c01\u88c5，\u5982\u4e0b：<\/p>\n
class InetAddr
\n{
\npublic:
\n InetAddr() {}
\n InetAddr(sockaddr_in &peer)
\n : _addr(peer)
\n {
\n _port = ntohs(peer.sin_port);
\n char buffer[32];
\n inet_ntop(AF_INET, &peer.sin_addr, buffer, sizeof(peer));
\n _ip = buffer;
\n }
\n InetAddr(uint16_t port)
\n : _port(port), _ip(to_string(INADDR_ANY))
\n {
\n _addr.sin_family = AF_INET;
\n _addr.sin_port = htons(_port);
\n _addr.sin_addr.s_addr = INADDR_ANY;
\n }
\n InetAddr(uint16_t port, string ip)
\n : _port(port), _ip(ip)
\n {
\n _addr.sin_family = AF_INET;
\n \/\/\u4e3b\u673a\u5e8f->\u7f51\u7edc\u5e8f
\n _addr.sin_port = htons(_port);
\n inet_pton(AF_INET, _ip.c_str(), &_addr.sin_addr);
\n \/\/_addr.sin_addr.s_addr = inet_addr(_ip.c_str());
\n }
\n string tostring_port()
\n {
\n return to_string(_port);
\n }
\n string tostring_ip()
\n {
\n return _ip;
\n }
\n bool operator==(InetAddr addr)
\n {
\n return _port == addr._port && _ip == addr._ip;
\n }
\n sockaddr *getaddr()
\n {
\n return (sockaddr *)&_addr;
\n }
\n socklen_t getlen()
\n {
\n return sizeof(_addr);
\n }
\n string stringaddr()
\n {
\n return tostring_ip() + ":" + tostring_port() + " ";
\n }<\/p>\nprivate:
\n uint16_t _port;
\n string _ip;
\n sockaddr_in _addr;
\n}; <\/p>\n
\n\u4e3a\u4ec0\u4e48\u8981\u7528OrDie\u540e\u6765\u7f00\u547d\u540d\u5462？<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0OrDie：\u6e90\u81eaC\/C++\u5f00\u53d1\u4e2d\u7684assert_or_die()\u7b49\u51fd\u6570\u547d\u540d\u8303\u5f0f，\u8868\u793a\u5173\u952e\u8d44\u6e90\u5fc5\u987b\u6210\u529f\u521d\u59cb\u5316，\u5426\u5219\u7a0b\u5e8f\u5e94\u7acb\u5373\u7ec8\u6b62\u7684\u4e25\u683c\u9519\u8bef\u5904\u7406\u7b56\u7565\u3002\u5e38\u89c1\u4e8eGoogle\u7b49\u516c\u53f8\u7684\u5185\u90e8\u4ee3\u7801\u5e93（\u5982ParseOrDie()），\u5f62\u6210\u4e86\u4e00\u79cd\u9632\u5fa1\u6027\u7f16\u7a0b\u7684\u6587\u5316\u7b26\u53f7\u3002<\/p>\n
\u8868\u793a："\u5b81\u53ef\u7a0b\u5e8f\u7acb\u523b\u5d29\u6e83\u66b4\u9732\u95ee\u9898，\u4e5f\u4e0d\u5141\u8bb8\u5728\u9519\u8bef\u72b6\u6001\u4e0b\u82df\u5ef6\u6b8b\u5598"\u3002<\/p>\n
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6ce8：\u4ee5\u4e0a\u63a5\u53e3\u57fa\u672c\u6ca1\u4eba\u80fd\u4e00\u6b21\u6027\u60f3\u51fa\u6765，\u60f3\u51fa\u6765\u4e86\u53c2\u6570\u4e5f\u4e0d\u4e00\u5b9a\u8bbe\u5bf9，\u800c\u5e94\u8be5\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u6839\u636e\u9700\u6c42\u6216\u53d1\u73b0\u95ee\u9898，\u800c\u8fdb\u884c\u6dfb\u52a0\u6216\u4fee\u6539\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u51fd\u6570\u5177\u4f53\u5b9e\u73b0\u5f88\u7b80\u5355，\u4e00\u4e00\u8c03\u7528\u5bf9\u5e94\u7684\u7f51\u7edc\u63a5\u53e3\u5373\u53ef，\u8fd9\u91cc\u5c31\u4e0d\u518d\u8bb2\u89e3，\u6587\u672b\u4f1a\u7ed9\u51fa\u6e90\u7801\u3002<\/p>\n
\u5b8c\u6210TcpServer.hpp\u6587\u4ef6<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u521b\u5efaTcpServer\u7c7b，\u5b83\u4e3b\u8981\u5b8c\u6210\u6253\u5f00\u7f51\u7edc\u6587\u4ef6，\u7aef\u53e3\u7ed1\u5b9a，\u76d1\u542c，\u63a5\u6536\u8bf7\u6c42<\/span>\u3002\u8fd9\u4e9b\u529f\u80fd\u6211\u4eec\u90fd\u5728Socket\u4e2d\u5c01\u88c5\u4e86，\u6211\u4eec\u5b9e\u4f8b\u5316\u51faTcpSocket\u5bf9\u8c61，\u7136\u540e\u5bf9\u5b83\u7684\u63a5\u53e3\u5c31\u884c\u8c03\u7528\u5373\u53ef\u3002<\/p>\n
\u6240\u4ee5TcpServer\u7c7b\u6210\u5458，\u8981\u5305\u542b\u4e24\u4e2a\u6210\u5458\u53d8\u91cf\u3002<\/p>\n
- \n
- unique_ptr<Socket> _listensockptr：\u6307\u5411\u4e00\u4e2aTcpSocket\u5bf9\u8c61\u3002<\/li>\n
- \u56de\u8c03\u6570\u636e\u5904\u7406\u65b9\u6cd5：\u8fd9\u4e2a\u6210\u5458\u5230\u540e\u6587\u518d\u8bbe\u8ba1\u3002<\/li>\n<\/ul>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u5b9e\u9645\u4e2d\u4f1a\u6709\u5f88\u591a\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u8fde\u63a5，\u901a\u5e38\u9700\u8981\u5e76\u53d1<\/span>\u7684\u5904\u7406\u5ba2\u6237\u7aef\u9700\u6c42，\u53ef\u4ee5\u4f7f\u7528\u591a\u8fdb\u7a0b\u3001\u591a\u7ebf\u7a0b\u3001\u7ebf\u7a0b\u6c60\u3001\u8fdb\u7a0b\u6c60\u7b49\u3002\u8fd9\u91cc\u6211\u4eec\u5c31\u505a\u7b80\u5355\u4e00\u70b9，\u4f7f\u7528\u591a\u8fdb\u7a0b\u5b8c\u6210\u5e76\u53d1\u529f\u80fd\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u800c\u5b50\u8fdb\u7a0b\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u9700\u8981\u7236\u8fdb\u7a0b\u8fdb\u884c\u7b49\u5f85\u7684，\u8fd9\u5c31\u4f1a\u9020\u6210\u4e3b\u8fdb\u7a0b\u963b\u585e，\u65e0\u6cd5\u63a5\u6536\u5176\u4ed6\u5ba2\u6237\u7684\u8bf7\u6c42，\u548c\u5355\u6267\u884c\u6d41\u6ca1\u533a\u522b\u4e86\u3002\u57fa\u4e8e\u8fd9\u6837\u7684\u95ee\u9898\u6709\u4e24\u79cd\u89e3\u51b3\u65b9\u6cd5：<\/p>\n
- SIGCHIL\u4fe1\u53f7（17\u53f7）\u7684\u5904\u7406\u65b9\u6cd5\u8bbe\u4e3a\u9ed8\u8ba4\u3002<\/li>\n
- \u4e3b\u8fdb\u7a0b\u521b\u5efa\u5b50\u8fdb\u7a0ba\u540e\u518d\u521b\u5efa\u5b59\u5b50\u8fdb\u7a0bb，\u6b64\u65f6a\u9000\u51fa，\u8ba9b\u8fdb\u7a0b\u53bb\u5b8c\u6210\u4efb\u52a1，b\u7684\u7236\u4eb2\u662fa，a\u9000\u51fab\u8fdb\u7a0b\u6210\u4e3a\u4e86\u5b64\u513f\u8fdb\u7a0b，\u4f1a\u4ea4\u7ed9\u7cfb\u7edf\u7ba1\u7406\u3002\u4e3b\u8fdb\u7a0b\u5c31\u4e0d\u7528\u7ba1\u4e86\u3002<\/li>\n
\u5982\u679c\u4e0d\u7406\u89e3\u7b2c1\u70b9，\u53ef\u4ee5\u770b\u4e00\u4e0b\u6587\u7ae0，\u7136\u540e\u9501\u5b9a\u5230\u7279\u6b8a\u4fe1\u53f7\u7684SIGCHIL\u4fe1\u53f7\u8fdb\u884c\u5b66\u4e60：<\/p>\n
Linux\u4fe1\u53f7\u7684\u8bde\u751f\u4e0e\u5f52\u5bbf：\u5185\u6838\u5982\u4f55\u7ba1\u7406\u4fe1\u53f7\u7684\u751f\u6210\u3001\u963b\u585e\u548c\u9012\u8fbe？_\u5185\u6838\u662f\u5982\u4f55\u4ea7\u751f\u4fe1\u53f7\u7684-CSDN\u535a\u5ba2z<\/p>\n
\u8fd9\u91cc\u6211\u4eec\u7528\u65b9\u6cd52\u89e3\u51b3，\u5982\u4e0b：<\/p>\n
using namespace SocketMoudule;
\nclass TcpServer
\n{
\npublic:
\n TcpServer(uint16_t port)
\n : _listensockptr(make_unique<TcpSocket>())
\n {
\n \/\/\u8fdb\u884c\u521d\u59cb\u5316，\u540c\u65f6\u542f\u52a8\u670d\u52a1\u5668
\n _listensockptr->BuildTcpServerMoudule(_port);
\n Start();
\n }
\n void Start()
\n {
\n while(true)
\n {
\n InetAddr addr;
\n auto sock = _listensockptr->Accept(&addr);
\n if(sock == nullptr) continue;
\n LOG(Level::INFO)<<addr.stringaddr()<<"accept success…";
\n pid_t pid = fork();
\n if(pid < 0)
\n {
\n LOG(Level::FATAL)<<"fork fail";
\n exit(FORK_ERRO);
\n }
\n if(pid == 0)
\n {
\n if(fork()>0)
\n exit(SUCCESS);
\n \/\/\u56de\u8c03\u65b9\u6cd5
\n \/\/……
\n sock->Close();
\n exit(SUCCESS);
\n }
\n else
\n {
\n sock->Close();
\n }
\n }
\n }
\nprivate:
\n unique_ptr<Socket> _listensockptr;
\n \/\/\u56de\u8c03\u51fd\u6570
\n}; <\/p>\n\u00a0 \u00a0 \u00a0 \u00a0 \u8bf4\u660e：FORK_ERRO\u3001SUCCESS\u662f\u9000\u51fa\u7801，\u672c\u8d28\u662f\u679a\u4e3e\u7c7b\u578b，\u5728\u6587\u4ef6Common.hpp\u4e2d\u5b9a\u4e49，LOG\u662f\u6211\u5199\u7684\u4e00\u4e2a\u6253\u5370\u65e5\u5fd7\u7684\u63a5\u53e3，\u00a0\u5927\u5bb6\u628a\u5b83\u5f53\u4f5ccout\u7406\u89e3\u5c31\u884c，\u5f53\u7136\u9700\u8981\u65e5\u5fd7\u6e90\u7801\u7684\u53ef\u4ee5\u79c1\u4fe1\u6211\u3002<\/p>\n
\u4e8c\u3001\u534f\u8bae<\/h2>\n
TCP\u534f\u8bae\u4f5c\u4e3a\u9762\u5411\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u534f\u8bae，\u53ef\u80fd\u5bfc\u81f4\u7c98\u5305\/\u534a\u5305\u95ee\u9898\u3002<\/p>\n
\u7c98\u5305：\u53d1\u9001\u65b9\u8fde\u7eed\u53d1\u9001\u591a\u4e2a\u72ec\u7acb\u6570\u636e\u5305，\u63a5\u6536\u65b9\u53ef\u80fd\u4e00\u6b21\u6027\u8bfb\u53d6\u5230\u5408\u5e76\u6570\u636e\u3002\u6bd4\u5982\u53d1\u90016\u548c7，\u63a5\u6536\u523067\u3002<\/p>\n
\u534a\u5305：\u53d1\u9001\u65b9\u4f20\u8f93\u5927\u5c3a\u5bf8\u6570\u636e\u5305，\u63a5\u6536\u65b9\u9996\u6b21\u8bfb\u53d6\u5230\u90e8\u5206\u6570\u636e\u3002\u6bd4\u5982\u53d1\u9001hello，\u63a5\u6536\u5230he\u548cllo\u3002<\/p>\n
1.\u5e8f\u5217\u5316\u4e0e\u53cd\u5e8f\u5217\u5316<\/h3>\n
\u7c98\u5305\u95ee\u9898<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5bf9\u4e8e\u7c98\u5305\u95ee\u9898，\u53ef\u4ee5\u5728\u6570\u636e\u4e4b\u95f4\u6dfb\u52a0\u4e00\u4e9b\u6807\u8bc6\u7b26<\/span>\u6765\u533a\u5206\u5b83\u4eec，\u6bd4\u5982": "，\u5f53\u63a5\u6536\u5230\u5b8c\u6574\u7684\u6570\u636e\u5305\u540e\u6839\u636e\u8fd9\u4e9b\u6807\u8bc6\u7b26\u5c31\u53ef\u4ee5\u533a\u5206\u51fa\u5b83\u4eec\u3002\u8fd9\u4e2a\u64cd\u4f5c\u5c31\u662f\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u3002<\/p>\n
\u6570\u636e\u5305\u4ee5\u4ec0\u4e48\u683c\u5f0f\u4f20\u9012\u662f\u901a\u4fe1\u53cc\u65b9（\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef）\u7ea6\u5b9a\u597d\u7684，\u5373\u534f\u8bae\u3002\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u5c31\u662f\u534f\u8bae\u7684\u4e00\u90e8\u5206\u3002<\/p>\n
\u6ce8\u610f：TCP\u534f\u8bae\u548cUDP\u534f\u8bae\u662f\u4f20\u8f93\u5c42\u534f\u8bae，\u8fd9\u91cc\u89e3\u51b3\u7c98\u5305\/\u534a\u5305\u95ee\u9898\u7684\u662f\u5e94\u7528\u5c42\u534f\u8bae，\u4e0d\u8981\u6df7\u6dc6\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6211\u4eec\u7684\u4e1a\u52a1\u7f51\u7edc\u8ba1\u6570\u5668，\u9700\u8981\u5ba2\u6237\u7aef\u4f20\u5165\u4e24\u4e2a\u8fd0\u7b97\u5bf9\u8c61\u548c\u4e00\u4e2a\u8fd0\u7b97\u7b26\u3002\u800c\u670d\u52a1\u5668\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u8fd0\u7b97\u7ed3\u679c，\u548c\u4e00\u4e2a\u9519\u8bef\u7801（\u7528\u6765\u6807\u8bc6\u8fd0\u7b97\u7ed3\u679c\u662f\u5426\u6709\u6548，\u6bd4\u5982\u96640\u6216\u5176\u4ed6\u975e\u6cd5\u64cd\u4f5c\u9700\u8981\u6807\u8bc6\u9519\u8bef）\u3002\u5373\u6709\u4e24\u7c7b\u6570\u636e<\/span>\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u6587\u4ef6Protocol\u4e2d\u521b\u5efa\u4e24\u4e2a\u7c7b，Request\u548cResponse\u5206\u522b\u5bf9\u8fd9\u4e24\u7c7b\u6570\u636e\u8fdb\u884c\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316，\u5982\u4e0b：<\/p>\n
class Request
\n{
\npublic:
\n Request() {}
\n Request(int x, int y, char oper)
\n : _x(x), _y(y), _oper(oper)
\n {}
\n \/\/\u5e8f\u5217\u5316
\n string Serialize();
\n \/\/\u53cd\u5e8f\u5217\u5316
\n void DeSerialize(string &message);
\nprivate:
\n int _x;
\n int _y;
\n char _oper;
\n};
\nclass Response
\n{
\npublic:
\n Response() {}
\n Response(int result, int code)
\n : _result(result), _code(code)
\n {}
\n string Serialize();
\n void DeSerialize(string &message);<\/p>\nprivate:
\n int _result;
\n int _code;
\n}; <\/p>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u7684\u5177\u4f53\u64cd\u4f5c\u6211\u4eec\u4e0d\u7528\u81ea\u5df1\u505a，\u6211\u4eec\u4f7f\u7528Json::Value，\u5b83\u662f\u00a0JsonCpp\u5e93（\u6700\u6d41\u884c\u7684C++ JSON\u5904\u7406\u5e93\u4e4b\u4e00）\u7684\u6838\u5fc3\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
JsonCpp\u5e93\u7684\u5b89\u88c5：<\/p>\n
ubuntu： sudo apt-get install libjsoncpp-dev
\nCentos: sudo yum install jsoncpp-devel <\/p>\nJsoncpp \u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u5e8f\u5217\u5316\u65b9\u6cd5，\u5982\u4e0b：<\/p>\n
\n
\u65b9\u6cd5\u4f18\u70b9\u7f3a\u70b9\u9002\u7528\u573a\u666f<\/tr>\n \n\n FastWriter<\/td>\n \u4f53\u79ef\u6700\u5c0f<\/td>\n \u65e0\u5b9a\u5236\u80fd\u529b<\/td>\n \u673a\u5668\u95f4\u6570\u636e\u4f20\u8f93<\/td>\n<\/tr>\n \n StyledWriter<\/td>\n \u53ef\u8bfb\u6027\u5f3a<\/td>\n \u6027\u80fd\u8f83\u5dee<\/td>\n \u8c03\u8bd5\/\u914d\u7f6e\u6587\u4ef6<\/td>\n<\/tr>\n \n StreamWriterBuilder<\/td>\n \u53ef\u5b9a\u5236\u6027\u5f3a，\u5b98\u65b9\u63a8\u8350<\/td>\n \u914d\u7f6e\u7a0d\u590d\u6742<\/td>\n \u6240\u6709\u751f\u4ea7\u73af\u5883<\/td>\n<\/tr>\n \n \u76f4\u63a5\u5199\u6587\u4ef6\u6d41<\/td>\n \u9002\u5408\u5927\u6587\u4ef6\u5904\u7406<\/td>\n \u9700\u7ba1\u7406\u6587\u4ef6\u6d41<\/td>\n \u6301\u4e45\u5316\u5b58\u50a8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u8fd9\u91cc\u6211\u4eec\u7b80\u5355\u4e00\u70b9\u4f7f\u7528FastWrite，\u6570\u636e\u662f\u4ee5key：value\u7684\u65b9\u5f0f\u5b58\u50a8\u3002\u5982\u4e0b：<\/p>\n
string Serialize()
\n{
\n Json::Value data;
\n data["x"] = _x;
\n data["y"] = _y;
\n data["oper"] = _oper;
\n Json::FastWriter writer;
\n return writer.write(data);
\n}<\/p>\n\u5982\u679c\u4f20\u5165 8，7，* \u88ab\u5e8f\u5217\u5316\u4e3a：\u00a0<\/p>\n
{"oper":42,"x":7,"y":8} <\/p>\n
\u00a0\u53cd\u5e8f\u5217\u5316：<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Json::Reader\u7528\u6765\u628a\u5b57\u7b26\u4e32\u8f6c\u5316\u4e3aJson::Value\u7c7b\u578b，\u518d\u4eceJson::Value\u4e2d\u63d0\u53d6\u5230\u5404\u4e2a\u5143\u7d20，\u8fd9\u4e2a\u8fc7\u7a0b\u548c\u53cd\u5e8f\u5217\u5316\u5f88\u7c7b\u4f3c，\u5176\u4e2d\u8981\u6307\u660e\u6570\u636e\u7c7b\u578b，\u5982.asInt()\u3002\u53cd\u5e8f\u5217\u5316\u76f8\u5f53\u4e8e\u5bf9Request\u6210\u5458\u53d8\u91cf\u521d\u59cb\u5316\u3002<\/p>\n
\u4ee3\u7801\u793a\u4f8b：<\/p>\n
void DeSerialize(string &message)
\n{
\n Json::Value data;
\n Json::Reader reader;
\n reader.parse(message, data);
\n _x = data["x"].asInt();
\n _y = data["y"].asInt();
\n _oper = data["oper"].asInt();
\n} <\/p>\n\u5bf9\u4e8eResponse\u540c\u6837，\u5982\u4e0b：<\/p>\n
class Response
\n{
\npublic:
\n Response() {}
\n Response(int result, int code)
\n : _result(result), _code(code)
\n {}
\n string Serialize()
\n {
\n Json::Value data;
\n data["result"] = _result;
\n data["code"] = _code;
\n Json::FastWriter writer;
\n return writer.write(data);
\n }
\n void DeSerialize(string &message)
\n {
\n Json::Value data;
\n Json::Reader reader;
\n reader.parse(message, data);
\n _result = data["result"].asInt();
\n _code = data["code"].asBool();
\n }
\nprivate:
\n int _result;
\n int _code;
\n}; <\/p>\n2. \u5c01\u5305\u4e0e\u89e3\u5305<\/h3>\n
\u534a\u5305\u95ee\u9898<\/p>\n
\u89e3\u51b3\u4e86\u7c98\u5305\u95ee\u9898，\u4f46\u6211\u4eec\u8fd8\u9700\u8981\u77e5\u9053\u80fd\u591f\u5224\u65ad\u62a5\u6587\u662f\u5426\u5b8c\u6574，\u5373\u5904\u7406\u534a\u5305\u95ee\u9898\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5bf9\u4e8e\u534a\u5305\u95ee\u9898，\u8fd9\u91cc\u6211\u4eec\u9009\u62e9\u5728\u6570\u636e\u5305\u524d\u52a0\u4e0a\u4e00\u4e2a\u62a5\u5934，\u8fd9\u4e2a\u62a5\u5934\u5b58\u50a8\u7684\u662f\u8fd9\u4e2a\u6570\u636e\u5305\u6709\u6548\u8f7d\u8377\u7684\u957f\u5ea6<\/span>，\u7136\u540e\u62a5\u5934\u4e0e\u6570\u636e\u5305\u7528\u201c\\\\r\\\\n\u201d\u533a\u5206\u5f00，\u5728\u62a5\u6587\u5c3e\u52a0\u201c\\\\r\\\\n\u201d\u7528\u6765\u533a\u5206\u4e0b\u4e00\u4e2a\u62a5\u6587\u3002\u8fd9\u6837\u7684\u8bdd\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u62a5\u5934\u77e5\u9053\u8fd9\u4e2a\u62a5\u6587\u4e00\u4e2a\u6709\u591a\u957f，\u7136\u540e\u53bb\u770b\u62a5\u6587\u6709\u6ca1\u6709\u5230\u8fbe\u5bf9\u5e94\u7684\u957f\u5ea6，\u5982\u679c\u662f\u5219\u662f\u5b8c\u6574\u7684，\u5982\u679c\u4e0d\u662f，\u5219\u5c31\u662f\u4e0d\u5b8c\u6574\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u6211\u4eec\u79f0\u4e3a\u5c01\u5305\u548c\u89e3\u5305<\/span>\u3002<\/p>\n
\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u7c7bProtocol\u6765\u5c01\u88c5 \u5c01\u5305\u3001\u89e3\u5305\u3001\u8bf7\u6c42\u5904\u7406\u3001\u83b7\u53d6\u54cd\u5e94\u3001\u8bf7\u6c42\u6784\u5efa\u7b49\u3002<\/p>\n
- \n
- \u5c01\u5305：\u6dfb\u52a0\u62a5\u5934，\u5373\u6709\u6548\u8f7d\u8377\u7684\u957f\u5ea6，\u7528\u201c\\\\r\\\\n\u201d\u4e0e\u62a5\u6587\u5206\u5f00\u3002\u65b9\u4fbf\u63a5\u6536\u65b9\u8bc6\u522b\u62a5\u6587\u7684\u5b8c\u6574\u6027\u3002<\/li>\n
- \u89e3\u5305：\u5224\u65ad\u62a5\u6587\u7684\u5b8c\u6574\u6027，\u5e76\u79fb\u9664\u62a5\u5934\u3002<\/li>\n
- \u8bf7\u6c42\u6784\u5efa：\u5bf9\u6570\u636e\u8fdb\u884c\u5e8f\u5217\u5316，\u5c01\u5305\u3002<\/li>\n
- \u83b7\u53d6\u54cd\u5e94：\u63a5\u6536\u6570\u636e，\u89e3\u5305，\u53cd\u5e8f\u5217\u5316\u3002<\/li>\n
- \u8bf7\u6c42\u5904\u7406：\u63a5\u6536\u6570\u636e，\u89e3\u5305，\u53cd\u5e8f\u5217\u5316，\u4e1a\u52a1\u5904\u7406（\u56de\u8c03），\u5e8f\u5217\u5316，\u5c01\u5305，\u53d1\u9001\u3002<\/li>\n<\/ul>\n
\u6570\u636e\u7684\u5904\u7406\u5b9e\u8d28\u5c31\u662f\u4f20\u5165\u4e00\u4e2aRequest，\u5f97\u5230\u4e00\u4e2aResponse<\/span>，\u6240\u4ee5\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u7c7b\u578b：<\/p>\n
- \n
- using func_t = function<Response(Request &)><\/li>\n<\/ul>\n
const string sep = "\\\\r\\\\n";
\nusing func_t = function<Response(Request &)>;
\nclass Protocol
\n{
\npublic:
\n Protocol() {};
\n Protocol(func_t func)
\n : _func(func)
\n {}
\n string EnCode(string &jsonstr);\/\/\u5c01\u5305
\n bool DeCode(string &buffer, string *package);\/\/\u89e3\u5305
\n string BuildRequestString(int x, int y, char oper);\/\/\u6784\u5efa\u8bf7\u6c42\u62a5\u6587
\n void GetRequest(shared_ptr<Socket> &sock, InetAddr &addr);\/\/\u8bf7\u6c42\u5904\u7406
\n bool GetResponse(shared_ptr<Socket> &sock, string *buffer, Response *rsp);\/\/\u83b7\u53d6\u54cd\u5e94
\nprivate:
\n func_t _func;
\n}; <\/p>\n- \n
- GetRequest：\u7ed9\u670d\u52a1\u5668\u7528\u7684，\u5373\u8bf7\u6c42\u5904\u7406（\u4e1a\u52a1\u5904\u7406），\u6d89\u53ca\u6570\u636e\u6536\u53d1，\u6240\u4ee5\u4f20\u5165Socket\u6307\u9488\u548c\u5ba2\u6237\u7aef\u5730\u5740\u4fe1\u606fInetAddr\u3002<\/li>\n
- GetResponse：\u7ed9\u5ba2\u6237\u7aef\u4f7f\u7528，\u7528\u6765\u83b7\u53d6\u6570\u636e\u5904\u7406\u7ed3\u679c，\u6d89\u53ca\u6570\u636e\u63a5\u6536，\u6240\u4ee5\u4f20\u5165\u5ba2\u6237\u7aef\u7684Socket\u6307\u9488，\u8f93\u51fa\u578b\u53c2\u6570buffer（\u7f13\u51b2\u533a）\u548crsp\u3002\u6ce8\u610f\u56e0\u4e3a\u63a5\u6536\u5230\u7684\u62a5\u6587\u53ef\u80fd\u4e0d\u5b8c\u6574，\u4e0d\u80fd\u4e00\u6b21\u53d6\u5230\u62a5\u6587，\u6240\u4ee5\u9700\u8981\u7f13\u51b2\u533a\u6765\u4fdd\u7559\u6570\u636e\u3002<\/li>\n<\/ul>\n
\u8fd8\u8bb0\u5f97\u5728TcpServer\u91cc\u6211\u4eec\u7f3a\u5c11\u7684\u6210\u5458\u53d8\u91cf\u6570\u636e\u5904\u7406\u51fd\u6570\u5417？\u73b0\u5728\u6211\u4eec\u77e5\u9053\u5b83\u662f\u8c01\u4e86，\u5373：<\/p>\n
- \n
- void GetRequest(shared_ptr<Socket> &sock, InetAddr &addr);<\/li>\n<\/ul>\n
\u5728TcpServer.hpp\u4e2d\u58f0\u660e\u4e00\u4e2a\u7c7b\u578b：<\/p>\n
- \n
- using func_t\u00a0= function<void(shared_ptr<Socket> &sock, InetAddr)>;<\/li>\n<\/ul>\n
\u7136\u540e\u6dfb\u52a0\u6210\u5458\u53d8\u91cffunc_t\u00a0_func，\u5e76\u5728\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u5217\u8868\u8fdb\u884c\u521d\u59cb\u5316\u3002<\/p>\n
\u00a0EnCode<\/p>\n
\u5c01\u5305 = \u62a5\u6587\u957f\u5ea6+\u201c\\\\r\\\\n\u201d+\u62a5\u6587+\u201c\\\\r\\\\n\u201d\u3002\u5982\u4e0b：<\/p>\n
string EnCode(string &jsonstr)
\n{
\n size_t len = jsonstr.size();
\n return to_string(len) + sep + jsonstr + sep;
\n} <\/p>\nDeCode<\/p>\n
- \u4ece\u7f13\u51b2\u533a\u627e\u5230\u6807\u8bc6\u7b26\u201c\\\\r\\\\n\u201d，\u5982\u679c\u627e\u4e0d\u5230，\u8bf4\u660e\u62a5\u6587\u4e0d\u5b8c\u6574，\u8fd4\u56defalse\u3002<\/li>\n
- \u4ece\u7f13\u51b2\u533a\u627e\u5230\u6807\u8bc6\u7b26\u201c\\\\r\\\\n\u201d\u540e，\u63d0\u53d6\u62a5\u5934\u5e76\u7b97\u51fa\u5b8c\u6574\u62a5\u6587\u7684\u957f\u5ea6\u3002\u5982\u679c\u5927\u4e8e\u7f13\u51b2\u533a\u957f\u5ea6，\u8bf4\u660e\u7f13\u51b2\u533a\u4e0d\u591f\u4e00\u4e2a\u5b8c\u6574\u62a5\u6587\u7684\u957f\u5ea6，\u8fd4\u56defalse\u3002<\/li>\n
- \u8d70\u5230\u8fd9\u91cc\u8bf4\u660e\u80fd\u53d6\u5230\u4e00\u4e2a\u5b8c\u6574\u7684\u62a5\u6587，\u7136\u540e\u628a\u6709\u6548\u8f7d\u8377\u63d0\u53d6\u51fa\u6765，\u4e3a\u65b9\u4fbf\u4e0b\u6b21\u63d0\u53d6，\u5220\u9664\u7f13\u51b2\u533a\u4e00\u4e2a\u62a5\u6587\u7684\u957f\u5ea6\u3002\u8fd4\u56detrue\u3002<\/li>\n
\u5982\u4e0b：<\/p>\n
bool DeCode(string &buffer, string *package)
\n{
\n int pos = buffer.find(sep);
\n if (pos == string::npos)
\n return false;
\n string lenStr = buffer.substr(0, pos);
\n int lenTarget = lenStr.size() + stoi(lenStr) + 2 * sep.size();
\n if (buffer.size() < lenTarget)
\n return false;
\n *package = buffer.substr(pos + sep.size(), stoi(lenStr));
\n buffer.erase(0, lenTarget);
\n return true;
\n} <\/p>\nBuildRequestString<\/p>\n
\u6784\u5efa\u8bf7\u6c42\u62a5\u6587，\u5373\u5bf9\u6570\u636e\u8fdb\u884c\u5e8f\u5217\u5316\u548c\u5c01\u5305，\u5982\u4e0b：<\/p>\n
string BuildRequestString(int x, int y, char oper)
\n{
\n Request req(x, y, oper);
\n string json_str = req.Serialize();
\n return EnCode(json_str);
\n} <\/p>\n\u00a0GetRequest<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f97\u5230\u5e76\u5904\u7406\u8bf7\u6c42，\u5bf9\u6211\u4eec\u521a\u624d\u5199\u7684\u65b9\u6cd5\u8fdb\u884c\u7ec4\u5408，\u5373\u63a5\u6536\u6570\u636e，\u89e3\u5305，\u53cd\u5e8f\u5217\u5316，\u4e1a\u52a1\u5904\u7406，\u5e8f\u5217\u5316，\u5c01\u5305，\u53d1\u9001\u6570\u636e\u3002\u5982\u4e0b：<\/p>\n
void GetRequest(shared_ptr<Socket> &sock, InetAddr &addr)
\n{
\n while (true)
\n {
\n string json_package; \/\/\u63a5\u6536\u6570\u636e
\n int n = sock->Recv(&json_package);
\n if (n == 0)
\n {
\n LOG(Level::INFO) << "client " << addr.tostring_ip() << " exit";
\n break;
\n }
\n else if (n < 0)
\n {
\n LOG(Level::WARING) << "Recv fail";
\n break;
\n }
\n else
\n {
\n \/\/ \u89e3\u62a5\u5305
\n string json_str;
\n while (DeCode(json_package, &json_str))
\n {
\n \/\/ \u53cd\u5e8f\u5217\u5316
\n Request req;
\n req.DeSerialize(json_str);
\n \/\/ \u4e1a\u52a1\u5904\u7406
\n Response resp = _func(req);
\n \/\/ \u5e8f\u5217\u5316
\n string send_str = resp.Serialize();
\n \/\/ \u52a0\u62a5\u5934
\n send_str = EnCode(send_str);
\n \/\/ \u53d1\u9001
\n sock->Send(send_str);
\n }
\n }
\n }
\n} <\/p>\n\u6ce8\u610f\u628a\u89e3\u5305\u8fc7\u7a0b\u5199\u6210\u5faa\u73af，\u56e0\u4e3a\u4e00\u6b21\u6027\u4e5f\u6709\u53ef\u80fd\u8bfb\u5230\u591a\u4e2a\u5b8c\u6574\u62a5\u6587，\u9700\u8981\u628a\u5b83\u4eec\u90fd\u8bfb\u53d6\u51fa\u6765\u3002<\/p>\n
GetResponse<\/p>\n
\u63a5\u6536\u6570\u636e，\u89e3\u5305，\u53cd\u5e8f\u5217\u5316，\u6700\u540e\u6570\u636e\u662f\u901a\u8fc7\u8f93\u51fa\u578b\u53c2\u6570\u5e26\u56de\u7684\u3002\u00a0<\/p>\n
bool GetResponse(shared_ptr<Socket> &sock, string *buffer, Response *rsp)
\n{
\n while (true)
\n {
\n int n = sock->Recv(buffer);
\n if (n == 0)
\n {
\n LOG(Level::WARING) << "server exit";
\n return false;
\n }
\n else if (n < 0)
\n {
\n LOG(Level::WARING) << "client Recv fail";
\n return false;
\n }
\n else
\n {
\n \/\/ \u89e3\u5305
\n string json_str;
\n if (!DeCode(*buffer, &json_str)) continue;
\n \/\/ \u53cd\u5e8f\u5217\u5316
\n rsp->DeSerialize(json_str);
\n return true;
\n }
\n }
\n} <\/p>\n\u4e09\u3001\u4e1a\u52a1<\/h2>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e1a\u52a1\u5904\u7406\u90e8\u5206\u5927\u5bb6\u53ef\u4ee5\u81ea\u884c\u8bbe\u5b9a，\u5373\u5b9e\u73b0\u4e00\u4e2afunction<Response(Request &)>\u7c7b\u578b\u7684\u51fd\u6570，\u6700\u597d\u5c01\u88c5\u4e00\u4e2a\u7c7b\u6765\u7ef4\u62a4\u3002\u8fd9\u91cc\u505a\u4e00\u4e2a\u7b80\u5355\u7684\u8ba1\u7b97\u5668\u6765\u5145\u5f53\u4e00\u4e2a，\u5982\u4e0b：<\/p>\n
class NetCal
\n{
\npublic:
\n Response Execute(Request &req);
\nprivate:
\n}; <\/p>\n\u5177\u4f53\u5b9e\u73b0\u5728\u6587\u672b\u6e90\u7801\u7ed9\u51fa\u3002\u00a0<\/p>\n
TcpServer.cc<\/p>\n
\u505a\u5b8c\u4e0a\u9762\u7684\u4e00\u5207\u6211\u4eec\u5c31\u53ef\u4ee5\u6765\u5b8c\u6210\u670d\u52a1\u5668\u4e3b\u51fd\u6570main\u4e86\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9996\u5148\u9700\u8981\u7a0b\u5e8f\u5916\u90e8\u4f20\u5165\u7aef\u53e3\u53f7，\u6240\u4ee5main\u51fd\u6570\u9700\u8981\u4f20\u5165\u547d\u4ee4\u884c\u53c2\u6570\u3002\u9700\u8981\u68c0\u6d4b\u683c\u5f0f\u7684\u6b63\u786e\u6027\u3002\u00a0 \u00a0<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5176\u6b21\u6211\u4eec\u521b\u5efa\u4e1a\u52a1\u7c7b\u5bf9\u8c61，\u534f\u8bae\u7c7b\u5bf9\u8c61，\u901a\u4fe1\u7c7b\u5bf9\u8c61，\u5e76\u628a\u56de\u8c03\u65b9\u6cd5\u4e00\u5c42\u4e00\u5c42\u7684\u5f80\u4e0b\u4f20，\u5982\u4e0b：<\/p>\n
int main(int argc, char *argv[])
\n{
\n if (argc != 2)
\n {
\n LOG(Level::FATAL) << "Usage server port";
\n exit(USAGE_ERRO);
\n }
\n \/\/ \u52a1\u4e1a
\n unique_ptr<NetCal> nc(make_unique<NetCal>());
\n \/\/ \u534f\u8bae
\n unique_ptr<Protocol> pt(make_unique<Protocol>([&](Request &req) -> Response
\n { return nc->Execute(req); }));
\n \/\/ \u901a\u901a\u4fe1
\n unique_ptr<TcpServer> ts(make_unique<TcpServer>(stoi(argv[1]), [&](shared_ptr<Socket> sock, InetAddr addr)
\n { pt->GetRequest(sock, addr); }));
\n return 0;
\n} <\/p>\n\u5ba2\u6237\u7aef<\/h2>\n
- \u540c\u6837\u7684\u9700\u8981\u4f20\u5165\u547d\u4ee4\u884c\u53c2\u6570\u6765\u6307\u5b9a\u670d\u52a1\u5668\u7684IP\u548c\u7aef\u53e3\u53f7，\u9700\u8981\u68c0\u67e5\u683c\u5f0f\u3002<\/li>\n
- \u521b\u5efaSocket\u7c7b\u5bf9\u8c61，\u6253\u5f00\u7f51\u7edc\u6587\u4ef6\u548c\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u8fde\u63a5\u3002<\/li>\n
- \u521b\u5efa\u534f\u8bae\u5bf9\u8c61\u548c\u7528\u6765\u63a5\u6536\u8fd4\u56de\u7ed3\u679c\u7684\u7f13\u51b2\u533a\u3002<\/li>\n
- \u505a\u4e00\u4e2a\u6b7b\u5faa\u73af，\u8fdb\u884c\u6784\u5efa\u8bf7\u6c42，\u53d1\u9001\u8bf7\u6c42，\u63a5\u6536\u54cd\u5e94，\u8f93\u51fa\u7ed3\u679c\u3002\u5982\u4e0b：<\/li>\n
inline void GetDatafromstdin(int *x, int *y, char *oper)
\n{
\n cout << "Please Enter x:";
\n cin >> *x;
\n cout << "Please Enter oper:";
\n cin >> *oper;
\n cout << "Please Enter y:";
\n cin >> *y;
\n}
\nint main(int argc, char *argv[])
\n{
\n if (argc != 3)
\n {
\n LOG(Level::FATAL) << "Usage serever's ip and port";
\n exit(USAGE_ERRO);
\n }
\n \/\/\u6784\u5efaSocket\u7c7b，\u5e76\u521b\u5efa\u5957\u63a5\u5b57，\u4e0e\u670d\u52a1\u5668\u8fde\u63a5\u3002
\n shared_ptr<Socket> client = make_shared<TcpSocket>();
\n client->SocketOrDie();
\n client->Connect(argv[1], stoi(argv[2]));
\n \/\/\u521b\u5efa\u534f\u8bae\u7c7b\u5bf9\u8c61
\n unique_ptr<Protocol> ptl = make_unique<Protocol>();
\n string buffer;
\n while (true)
\n {
\n \/\/\u8bfb\u53d6\u8f93\u5165\u5e76\u6784\u5efa\u8bf7\u6c42
\n int x, y;
\n char oper;
\n GetDatafromstdin(&x, &y, &oper);
\n string send_str = ptl->BuildRequestString(x, y, oper);
\n \/\/\u53d1\u9001\u8bf7\u6c42
\n client->Send(send_str);
\n \/\/\u63a5\u6536\u54cd\u5e94
\n Response rsp;
\n if (!ptl->GetResponse(client, &buffer, &rsp))
\n break;
\n \/\/\u7ed3\u679c\u5c55\u793a
\n rsp.ShowResult();
\n }
\n return 0;
\n} <\/p>\n\u975e\u5e38\u611f\u8c22\u60a8\u80fd\u8010\u5fc3\u8bfb\u5b8c\u8fd9\u7bc7\u6587\u7ae0\u3002\u5018\u82e5\u60a8\u4ece\u4e2d\u6709\u6240\u6536\u83b7，\u8fd8\u671b\u591a\u591a\u652f\u6301\u5440！💕💕
![\"74c0781738354c71be3d62e05688fecc.png\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250427032310-680da31eb6dcd.png\")
<\/p>\n\u56db\u3001\u6e90\u7801<\/h2>\n
TcpServer.hpp<\/p>\n
#pragma once
\n#include <iostream>
\n#include <functional>
\n#include <sys\/types.h>
\n#include <unistd.h>
\n#include <memory>
\n#include "Log.hpp"
\n#include "Common.hpp"
\n#include "InetAddr.hpp"
\n#include "Socket.hpp"
\nusing namespace my_log;
\nusing namespace SocketMoudule;
\nusing ioservice_t = function<void(shared_ptr<Socket> &socket, InetAddr &addr)>;
\nclass TcpServer
\n{
\npublic:
\n TcpServer(uint16_t port, ioservice_t service)
\n :_service(service),_listensockptr(make_unique<TcpSocket>())
\n {
\n _listensockptr->BuildTcpServerMoudule(port);
\n Start();
\n }
\n void Start()
\n {
\n while(true)
\n {
\n InetAddr addr;
\n auto sock = _listensockptr->Accept(&addr);
\n if(sock == nullptr) continue;
\n LOG(Level::INFO)<<addr.stringaddr()<<"accept success…";
\n pid_t pid = fork();
\n if(pid < 0)
\n {
\n LOG(Level::FATAL)<<"fork fail";
\n exit(FORK_ERRO);
\n }
\n if(pid == 0)
\n {
\n if(fork()>0)
\n exit(SUCCESS);
\n _service(sock,addr);
\n sock->Close();
\n exit(SUCCESS);
\n }
\n else
\n {
\n sock->Close();
\n }
\n }
\n }<\/p>\nprivate:
\n ioservice_t _service;
\n unique_ptr<Socket> _listensockptr;
\n}; <\/p>\nTcpServer.cc<\/p>\n
#include "TcpServer.hpp"
\n#include "InetAddr.hpp"
\n#include "Socket.hpp"
\n#include "Protocol.hpp"
\n#include "NetCal.hpp"
\nusing namespace SocketMoudule;
\nint main(int argc, char *argv[])
\n{
\n if (argc != 2)
\n {
\n LOG(Level::FATAL) << "Usage server port";
\n exit(USAGE_ERRO);
\n }
\n \/\/ \u52a1\u4e1a
\n unique_ptr<NetCal> nc(make_unique<NetCal>());
\n \/\/ \u534f\u8bae
\n unique_ptr<Protocol> pt(make_unique<Protocol>([&](Request &req) -> Response
\n { return nc->Execute(req); }));
\n \/\/ \u901a\u901a\u4fe1
\n unique_ptr<TcpServer> ts(make_unique<TcpServer>(stoi(argv[1]), [&](shared_ptr<Socket> sock, InetAddr addr)
\n { pt->GetRequest(sock, addr); }));
\n return 0;
\n} <\/p>\nTcpClient.cc<\/p>\n
#include <iostream>
\n#include <memory>
\n#include "Common.hpp"
\n#include "Socket.hpp"
\n#include "Log.hpp"
\n#include "Protocol.hpp"
\nusing namespace my_log;
\nusing namespace SocketMoudule;
\ninline void GetDatafromstdin(int *x, int *y, char *oper)
\n{
\n cout << "Please Enter x:";
\n cin >> *x;
\n cout << "Please Enter oper:";
\n cin >> *oper;
\n cout << "Please Enter y:";
\n cin >> *y;
\n}
\nint main(int argc, char *argv[])
\n{
\n if (argc != 3)
\n {
\n LOG(Level::FATAL) << "Usage serever's ip and port";
\n exit(USAGE_ERRO);
\n }
\n shared_ptr<Socket> client = make_shared<TcpSocket>();
\n unique_ptr<Protocol> ptl = make_unique<Protocol>();
\n client->SocketOrDie();
\n client->Connect(argv[1], stoi(argv[2]));
\n string buffer;<\/p>\nwhile (true)
\n {<\/p>\nint x, y;
\n char oper;
\n GetDatafromstdin(&x, &y, &oper);
\n string send_str = ptl->BuildRequestString(x, y, oper);
\n client->Send(send_str);
\n Response rsp;
\n if (!ptl->GetResponse(client, &buffer, &rsp))
\n break;
\n rsp.ShowResult();
\n }
\n return 0;
\n} <\/p>\nSocket.hpp<\/p>\n
#pragma once
\n#include <iostream>
\n#include <string>
\n#include <netinet\/in.h>
\n#include <netinet\/ip.h>
\n#include <sys\/socket.h>
\n#include <arpa\/inet.h>
\n#include <unistd.h>
\n#include <memory>
\n#include "Common.hpp"
\n#include "InetAddr.hpp"
\n#include "Log.hpp"
\nusing namespace my_log;
\nstatic const int gbacklog = 8;
\nnamespace SocketMoudule
\n{
\n class Socket
\n {
\n public:
\n virtual void SocketOrDie() = 0;
\n virtual void BindOrDie(uint16_t) = 0;
\n virtual void ListenOrDie(int) = 0;
\n virtual shared_ptr<Socket> Accept(InetAddr *) = 0;
\n virtual void Close() = 0;
\n virtual int Recv(string *) = 0;
\n virtual int Send(string &) = 0;
\n virtual void Connect(const std::string &, uint16_t) = 0;<\/p>\npublic:
\n void BuildTcpServerMoudule(uint16_t port, int backlog = gbacklog)
\n {
\n SocketOrDie();
\n BindOrDie(port);
\n ListenOrDie(backlog);
\n }
\n void BuildUdpServerMoudule()
\n {
\n void SocketOrDie();
\n void BindOrDie();
\n }
\n };
\n class TcpSocket : public Socket
\n {
\n public:
\n TcpSocket(int socketfd = -1)
\n : _socketfd(socketfd)
\n {
\n }
\n virtual void SocketOrDie() override
\n {
\n _socketfd = socket(AF_INET, SOCK_STREAM, 0);
\n if (_socketfd < 0)
\n {
\n LOG(Level::FATAL) << "Socket fail";
\n exit(SOCKET_ERRO);
\n }
\n LOG(Level::INFO) << "socket success";
\n }
\n virtual void BindOrDie(uint16_t port) override
\n {
\n InetAddr addr(port);
\n int n = bind(_socketfd, addr.getaddr(), addr.getlen());
\n if (n < 0)
\n {
\n LOG(Level::FATAL) << "bind fail";
\n exit(BIND_ERRO);
\n }
\n LOG(Level::INFO) << "Bind success";
\n }
\n virtual void ListenOrDie(int backlog) override
\n {
\n int n = listen(_socketfd, backlog);
\n if (n < 0)
\n {
\n LOG(Level::FATAL) << "Listen fail";
\n exit(LISTEN_ERRO);
\n }
\n LOG(Level::INFO) << "Listen success";
\n }
\n virtual shared_ptr<Socket> Accept(InetAddr *addr) override
\n {
\n \/\/ \u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u7528addr，\u56e0\u4e3a\u6784\u9020\u4e0d\u4e86IP\u3002
\n socklen_t len = sizeof(sockaddr_in);
\n sockaddr_in peer;
\n int n = accept(_socketfd, (sockaddr *)&peer, &len);
\n if (n < 0)
\n {
\n LOG(Level::WARING) << addr->tostring_ip() << "accept fail";
\n return nullptr;
\n }
\n *addr = InetAddr(peer);
\n return make_shared<TcpSocket>(n);
\n }
\n virtual void Close() override
\n {
\n close(_socketfd);
\n }
\n virtual int Recv(string *out) override
\n {
\n char buffer[1024];
\n int n = read(_socketfd, buffer, sizeof(buffer) – 1);
\n if (n > 0)
\n {
\n buffer[n] = '\\\\0';
\n *out += buffer;
\n }
\n return n;
\n }
\n virtual int Send(string &message) override
\n {
\n return write(_socketfd, message.c_str(), message.size());
\n }
\n virtual void Connect(const std::string &ip, uint16_t port) override
\n {
\n InetAddr addr(port, ip);
\n int n = connect(_socketfd, addr.getaddr(), addr.getlen());
\n if (n < 0)
\n {
\n LOG(Level::FATAL) << "connect fail";
\n exit(CONNECT_ERRO);
\n }
\n LOG(Level::INFO) << "connect success";
\n }<\/p>\nprivate:
\n int _socketfd;
\n };<\/p>\nclass UdpSocket : public Socket
\n {
\n public:
\n \/\/……
\n private:
\n int _socketfd;
\n };
\n}<\/p>\nInteAddr.hpp<\/p>\n
#pragma once
\n#include <iostream>
\n#include <string>
\n#include <sys\/socket.h>
\n#include <netinet\/in.h>
\n#include <netinet\/ip.h>
\n#include <arpa\/inet.h>
\nusing namespace std;
\nclass InetAddr
\n{
\npublic:
\n InetAddr() {}
\n InetAddr(sockaddr_in &peer)
\n : _addr(peer)
\n {
\n _port = ntohs(peer.sin_port);
\n char buffer[32];
\n inet_ntop(AF_INET, &peer.sin_addr, buffer, sizeof(peer));
\n _ip = buffer;
\n }
\n InetAddr(uint16_t port)
\n : _port(port), _ip(to_string(INADDR_ANY))
\n {
\n _addr.sin_family = AF_INET;
\n _addr.sin_port = htons(_port);
\n _addr.sin_addr.s_addr = INADDR_ANY;
\n }
\n InetAddr(uint16_t port, string ip)
\n : _port(port), _ip(ip)
\n {
\n _addr.sin_family = AF_INET;
\n \/\/\u4e3b\u673a\u5e8f->\u7f51\u7edc\u5e8f
\n _addr.sin_port = htons(_port);
\n inet_pton(AF_INET, _ip.c_str(), &_addr.sin_addr);
\n \/\/_addr.sin_addr.s_addr = inet_addr(_ip.c_str());
\n }
\n string tostring_port()
\n {
\n return to_string(_port);
\n }
\n string tostring_ip()
\n {
\n return _ip;
\n }
\n bool operator==(InetAddr addr)
\n {
\n return _port == addr._port && _ip == addr._ip;
\n }
\n sockaddr *getaddr()
\n {
\n return (sockaddr *)&_addr;
\n }
\n socklen_t getlen()
\n {
\n return sizeof(_addr);
\n }
\n string stringaddr()
\n {
\n return tostring_ip() + ":" + tostring_port() + " ";
\n }<\/p>\nprivate:
\n uint16_t _port;
\n string _ip;
\n sockaddr_in _addr;
\n}; <\/p>\nProtocol.hpp<\/p>\n
#pragma once
\n#include <iostream>
\n#include <jsoncpp\/json\/json.h>
\n#include <string>
\n#include <functional>
\n#include "Socket.hpp"
\n#include "InetAddr.hpp"
\nusing namespace SocketMoudule;
\nusing namespace std;
\nclass Request
\n{
\npublic:
\n Request() {}
\n Request(int x, int y, char oper)
\n : _x(x), _y(y), _oper(oper)
\n {
\n }
\n string Serialize()
\n {
\n Json::Value data;
\n data["x"] = _x;
\n data["y"] = _y;
\n data["oper"] = _oper;
\n Json::FastWriter writer;
\n cout<<writer.write(data);
\n return writer.write(data);
\n }
\n void DeSerialize(string &message)
\n {
\n Json::Value data;
\n Json::Reader reader;
\n reader.parse(message, data);
\n _x = data["x"].asInt();
\n _y = data["y"].asInt();
\n _oper = data["oper"].asInt();
\n }
\n int X() { return _x; }
\n int Y() { return _y; }
\n char Oper() { return _oper; }<\/p>\nprivate:
\n int _x;
\n int _y;
\n char _oper;
\n};
\nclass Response
\n{
\npublic:
\n Response() {}
\n Response(int result, int code)
\n : _result(result), _code(code)
\n {
\n }
\n string Serialize()
\n {
\n Json::Value data;
\n data["result"] = _result;
\n data["code"] = _code;
\n Json::FastWriter writer;
\n return writer.write(data);
\n }
\n void DeSerialize(string &message)
\n {
\n Json::Value data;
\n Json::Reader reader;
\n reader.parse(message, data);
\n _result = data["result"].asInt();
\n _code = data["code"].asBool();
\n }
\n void ShowResult()
\n {
\n cout << "result[" << _result << "]:code[" << _code << "]" << endl;
\n }
\n int Result() { return _result; }
\n bool Code() { return _code; }
\n void SetResult(int ret) { _result = ret; }
\n void SetCode(int f) { _code = f; }<\/p>\nprivate:
\n int _result;
\n int _code;
\n};
\nconst string sep = "\\\\r\\\\n";
\nusing func_t = function<Response(Request &)>;
\nclass Protocol
\n{
\npublic:
\n Protocol() {};
\n Protocol(func_t func)
\n : _func(func)
\n {
\n }
\n string EnCode(string &jsonstr)
\n {
\n size_t len = jsonstr.size();
\n return to_string(len) + sep + jsonstr + sep;
\n }
\n bool DeCode(string &buffer, string *package)
\n {
\n int pos = buffer.find(sep);
\n if (pos == string::npos)
\n return false;
\n string lenStr = buffer.substr(0, pos);
\n int lenTarget = lenStr.size() + stoi(lenStr) + 2 * sep.size();
\n if (buffer.size() < lenTarget)
\n return false;
\n *package = buffer.substr(pos + sep.size(), stoi(lenStr));
\n buffer.erase(0, lenTarget);
\n return true;
\n }
\n void GetRequest(shared_ptr<Socket> &sock, InetAddr &addr)
\n {
\n while (true)
\n {
\n string json_package; \/\/?
\n int n = sock->Recv(&json_package);
\n if (n == 0)
\n {
\n LOG(Level::INFO) << "client " << addr.tostring_ip() << " exit";
\n break;
\n }
\n else if (n < 0)
\n {
\n LOG(Level::WARING) << "Recv fail";
\n break;
\n }
\n else
\n {
\n \/\/ \u89e3\u62a5\u5305
\n string json_str;
\n while (DeCode(json_package, &json_str))
\n {
\n \/\/ \u53cd\u5e8f\u5217\u5316
\n Request req;
\n req.DeSerialize(json_str);
\n \/\/ \u5904\u7406
\n Response resp = _func(req);
\n \/\/ \u5e8f\u5217\u5316
\n string send_str = resp.Serialize();
\n \/\/ \u52a0\u62a5\u5934
\n send_str = EnCode(send_str);
\n \/\/ \u53d1\u9001
\n sock->Send(send_str);
\n }
\n }
\n }
\n }
\n bool GetResponse(shared_ptr<Socket> &sock, string *buffer, Response *rsp)
\n {
\n while (true)
\n {
\n int n = sock->Recv(buffer);
\n if (n == 0)
\n {
\n LOG(Level::WARING) << "server exit";
\n return false;
\n }
\n else if (n < 0)
\n {
\n LOG(Level::WARING) << "client Recv fail";
\n return false;
\n }
\n else
\n {
\n \/\/ \u89e3\u5305
\n string json_str;
\n if (!DeCode(*buffer, &json_str)) continue;
\n \/\/ \u53cd\u5e8f\u5217\u5316
\n rsp->DeSerialize(json_str);
\n return true;
\n }
\n }
\n }
\n string BuildRequestString(int x, int y, char oper)
\n {
\n Request req(x, y, oper);
\n string json_str = req.Serialize();
\n return EnCode(json_str);
\n }<\/p>\nprivate:
\n func_t _func;
\n};<\/p>\nNetCal.hpp<\/p>\n
#pragma once
\n#include "Common.hpp"
\n#include "Protocol.hpp"
\nclass NetCal
\n{
\npublic:
\n Response Execute(Request &req)
\n {
\n Response resp(0, 0);
\n switch (req.Oper())
\n {
\n case '+':
\n resp.SetResult(req.X() + req.Y());
\n break;
\n case '-':
\n resp.SetResult(req.X() – req.Y());
\n break;
\n case '*':
\n resp.SetResult(req.X() * req.Y());
\n break;
\n case '\/':
\n if (req.Y() == 0)
\n resp.SetCode(1);
\n else
\n resp.SetResult(req.X() \/ req.Y());
\n break;
\n case '%':
\n if (req.Y() == 0)
\n resp.SetCode(2);
\n else
\n resp.SetResult(req.X() % req.Y());
\n default:
\n resp.SetCode(3);
\n break;
\n }
\n return resp;
\n }
\nprivate:
\n};<\/p>\n","protected":false},"excerpt":{"rendered":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e80\u6b21\uff0c\u6536\u85cf79\u6b21\u3002\u672c\u6587\u5c06\u57fa\u4e8eTCP\u534f\u8bae\u6784\u5efa\u4e00\u4e2a\u7f51\u7edc\u8ba1\u7b97\u5668\u670d\u52a1\u3002\u4e1a\u52a1\u903b\u8f91\u76f8\u5bf9\u5f31\u5316\u4e00\u4e9b\uff0c\u76ee\u7684\u662f\u5b8c\u6574\u6f14\u793a\u670d\u52a1\u7aef\u5f00\u53d1\u7684\u6838\u5fc3\u6d41\u7a0b\u3002\u800c\u628a\u91cd\u70b9\u653e\u5728\u5e94\u7528\u5c42\u534f\u8bae\u7684\u8bbe\u8ba1\u8fc7\u7a0b\uff0c\u5305\u62ec\u8bf7\u6c42\/\u54cd\u5e94\u62a5\u6587\u7ed3\u6784\u5b9a\u4e49\u3001\u6570\u636e\u4f20\u8f93\u673a\u5236\u7b49\u5173\u952e\u5b9e\u73b0\u7ec6\u8282\uff1b\u540c\u65f6\u8bb2\u89e3Socket\u901a\u4fe1\u5c42\u7684\u5de5\u7a0b\u5316\u5c01\u88c5\uff0c\u901a\u8fc7\u62bd\u8c61\u8fde\u63a5\u5efa\u7acb\u3001\u6570\u636e\u6536\u53d1\u3001\u8d44\u6e90\u7ba1\u7406\u7b49\u57fa\u7840\u64cd\u4f5c\uff0c\u6784\u5efa\u53ef\u6269\u5c55\u7684\u7f51\u7edc\u901a\u4fe1\u6a21\u5757\u3002<\/p>\n","protected":false},"author":2,"featured_media":33383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,58,2752,205,43,78,191,44],"topic":[],"class_list":{"0":"post-33384","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-server","8":"tag-c","9":"tag-linux","11":"tag-tcp-ip","12":"tag-43","13":"tag-78","14":"tag-191","15":"tag-44"},"yoast_head":"\n
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- using func_t\u00a0= function<void(shared_ptr<Socket> &sock, InetAddr)>;<\/li>\n<\/ul>\n
- void GetRequest(shared_ptr<Socket> &sock, InetAddr &addr);<\/li>\n<\/ul>\n
- using func_t = function<Response(Request &)><\/li>\n<\/ul>\n
- NetCal.hpp：\u7f51\u7edc\u8ba1\u7b97\u5668\u7684\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n
- Protocol.hpp：\u81ea\u5b9a\u4e49\u534f\u8bae，\u5b8c\u6210\u5e8f\u5217\u5316\u3001\u53cd\u5e8f\u5217\u5316\u3001\u5c01\u5305，\u89e3\u5305\u7b49\u3002<\/li>\n<\/ul>\n