{"id":39540,"date":"2025-05-24T05:46:10","date_gmt":"2025-05-23T21:46:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/39540.html"},"modified":"2025-05-24T05:46:10","modified_gmt":"2025-05-23T21:46:10","slug":"linux-%e7%9a%84-tcp-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b-%e5%9b%9e%e6%98%be%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%8c%e7%bf%bb%e8%af%91%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/39540.html","title":{"rendered":"Linux \u7684 TCP \u7f51\u7edc\u7f16\u7a0b -- \u56de\u663e\u670d\u52a1\u5668\uff0c\u7ffb\u8bd1\u670d\u52a1\u5668"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

1. \u76f8\u5173\u51fd\u6570\u4ecb\u7ecd<\/p>\n

1.1\u00a0listen()<\/p>\n

1.2 accept()<\/p>\n

1.3 connect()<\/p>\n

2. TCP \u56de\u663e\u670d\u52a1\u5668<\/p>\n

2.1 Common.hpp<\/p>\n

2.2 InetAddr.hpp<\/p>\n

2.3 TcpClient.cc<\/p>\n

2.4 TcpServer.hpp<\/p>\n

2.5 TcpServer.cc<\/p>\n

2.6 demo \u6d4b\u8bd5<\/p>\n

3. TCP \u7ffb\u8bd1\u670d\u52a1\u5668<\/p>\n

3.1 demo \u6d4b\u8bd5<\/p>\n

\n

1. \u76f8\u5173\u51fd\u6570\u4ecb\u7ecd<\/h2>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5176\u4e2d\u4e00\u4e9b\u51fd\u6570\u5728\u4e4b\u524d\u5df2\u7ecf\u4ecb\u7ecd\u8fc7，\u53c2\u8003Linux \u7684 UDP \u7f51\u7edc\u7f16\u7a0b — \u56de\u663e\u670d\u52a1\u5668，\u7ffb\u8bd1\u670d\u52a1\u5668\u3002<\/p>\n

1.1\u00a0listen()<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0listen()\u00a0\u662f C \u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u51fd\u6570，\u4e3b\u8981\u7528\u4e8e\u5c06\u4e00\u4e2a\u5957\u63a5\u5b57（socket）\u8f6c\u6362\u4e3a\u88ab\u52a8\u76d1\u542c\u5957\u63a5\u5b57，\u4f7f\u5176\u80fd\u591f\u63a5\u53d7\u6765\u81ea\u5176\u4ed6\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u8fd9\u4e2a\u51fd\u6570\u662f\u5b9e\u73b0 TCP \u670d\u52a1\u5668\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002<\/p>\n

\u539f\u578b：
\n int listen(int sockfd, int backlog);<\/p>\n

\u5934\u6587\u4ef6：
\n #include <sys\/types.h>
\n #include <sys\/socket.h><\/p>\n

\u53c2\u6570：
\n sockfd：\u8fd9\u662f\u901a\u8fc7 socket() \u51fd\u6570\u521b\u5efa\u7684\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26，\u5e76\u4e14\u8be5\u5957\u63a5\u5b57\u5df2\u7ecf\u901a\u8fc7 bind() \u51fd\u6570\u7ed1\u5b9a\u5230\u4e86
\n\u7279\u5b9a\u7684\u5730\u5740\u548c\u7aef\u53e3\u3002<\/p>\n

backlog：\u8868\u793a\u8bf7\u6c42\u961f\u5217\u7684\u6700\u5927\u957f\u5ea6，\u5373\u5141\u8bb8\u5728\u670d\u52a1\u5668\u5904\u7406\u5f53\u524d\u8fde\u63a5\u8bf7\u6c42\u7684\u540c\u65f6，\u79ef\u538b\u7684\u672a\u5904\u7406\u8fde\u63a5\u8bf7\u6c42\u7684
\n\u6700\u5927\u6570\u91cf\u3002\u5f53\u8bf7\u6c42\u961f\u5217\u5df2\u6ee1\u65f6，\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\u53ef\u80fd\u4f1a\u88ab\u62d2\u7edd（\u5177\u4f53\u884c\u4e3a\u53d6\u51b3\u4e8e\u64cd\u4f5c\u7cfb\u7edf）\u3002<\/p>\n

\u8fd4\u56de\u503c：
\n \u6210\u529f\u3002\u8fd4\u56de 0.
\n \u5931\u8d25，\u8fd4\u56de -1，\u5e76\u8bbe\u7f6e errno \u6765\u6307\u793a\u5177\u4f53\u7684\u9519\u8bef\u539f\u56e0\u3002<\/p>\n

\u529f\u80fd：
\n \u4e3b\u8981\u7528\u4e8e\u5c06\u4e00\u4e2a\u5957\u63a5\u5b57（socket）\u8f6c\u6362\u4e3a\u88ab\u52a8\u76d1\u542c\u5957\u63a5\u5b57，\u4f7f\u5176\u80fd\u591f\u63a5\u53d7\u6765\u81ea\u5176\u4ed6\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u8fd9
\n\u4e2a\u51fd\u6570\u662f\u5b9e\u73b0 TCP \u670d\u52a1\u5668\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002<\/p>\n

1.2 accept()<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0accept()\u00a0\u662f C \u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u6838\u5fc3\u51fd\u6570，\u4e3b\u8981\u7528\u4e8e\u4ece\u5df2\u5b8c\u6210\u8fde\u63a5\u961f\u5217\u4e2d\u53d6\u51fa\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42，\u5e76\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5957\u63a5\u5b57\u6765\u4e13\u95e8\u5904\u7406\u8be5\u8fde\u63a5\u3002\u8fd9\u4e2a\u51fd\u6570\u662f\u5b9e\u73b0 TCP \u670d\u52a1\u5668\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002<\/p>\n

\u539f\u578b：
\n int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen);<\/p>\n

\u5934\u6587\u4ef6：
\n #include <sys\/types.h>
\n #include <sys\/socket.h><\/p>\n

\u53c2\u6570：
\n sockfd：\u8fd9\u662f\u901a\u8fc7 socket()\u3001bind() \u548c listen() \u51fd\u6570\u521b\u5efa\u5e76\u914d\u7f6e\u597d\u7684\u76d1\u542c\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26，\u7528\u4e8e\u63a5\u6536
\n\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002<\/p>\n

addr（\u53ef\u9009）：\u6307\u5411 struct sockaddr \u7c7b\u578b\u7684\u6307\u9488，\u7528\u4e8e\u5b58\u50a8\u5ba2\u6237\u7aef\u7684\u5730\u5740\u4fe1\u606f（\u5982 IP \u5730\u5740\u548c\u7aef\u53e3
\n\u53f7）\u3002\u5982\u679c\u4e0d\u9700\u8981\u5ba2\u6237\u7aef\u5730\u5740，\u53ef\u4ee5\u4f20\u5165 NULL\u3002<\/p>\n

addrlen（\u53ef\u9009）：\u6307\u5411 socklen_t \u7c7b\u578b\u7684\u6307\u9488，\u7528\u4e8e\u6307\u5b9a addr \u7ed3\u6784\u7684\u957f\u5ea6\u3002\u51fd\u6570\u8fd4\u56de\u65f6，\u8be5\u53c2\u6570\u4f1a
\n\u88ab\u66f4\u65b0\u4e3a\u5b9e\u9645\u5b58\u50a8\u7684\u5730\u5740\u7ed3\u6784\u957f\u5ea6\u3002\u5982\u679c addr \u4e3a NULL，\u5219 addrlen \u4e5f\u5e94\u8bbe\u4e3a NULL\u3002<\/p>\n

\u8fd4\u56de\u503c：
\n \u6210\u529f，\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26，\u7528\u4e8e\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u6570\u636e\u901a\u4fe1\u3002\u539f\u76d1\u542c\u5957\u63a5\u5b57 sockfd \u4f9d\u7136\u4fdd\u6301\u76d1\u542c\u72b6
\n\u6001，\u53ef\u4ee5\u7ee7\u7eed\u63a5\u6536\u5176\u4ed6\u8fde\u63a5\u8bf7\u6c42\u3002
\n \u5931\u8d25：\u8fd4\u56de -1，\u5e76\u8bbe\u7f6e errno \u6765\u6307\u793a\u5177\u4f53\u7684\u9519\u8bef\u539f\u56e0\u3002<\/p>\n

\u529f\u80fd：
\n \u7528\u4e8e\u4ece\u5df2\u5b8c\u6210\u8fde\u63a5\u961f\u5217\u4e2d\u53d6\u51fa\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42，\u5e76\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5957\u63a5\u5b57\u6765\u4e13\u95e8\u5904\u7406\u8be5\u8fde\u63a5\u3002 <\/p>\n

1.3 connect()<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0connect()\u00a0\u662f C \u8bed\u8a00\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u57fa\u7840\u51fd\u6570，\u4e3b\u8981\u7528\u4e8e\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002\u901a\u8fc7\u8fd9\u4e2a\u51fd\u6570，\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0e\u6307\u5b9a IP \u5730\u5740\u548c\u7aef\u53e3\u7684\u670d\u52a1\u5668\u5efa\u7acb TCP \u8fde\u63a5\u3002<\/p>\n

\u539f\u578b：
\n int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);<\/p>\n

\u5934\u6587\u4ef6：
\n #include <sys\/types.h>
\n #include <sys\/socket.h><\/p>\n

\u53c2\u6570：
\n sockfd：\u8fd9\u662f\u901a\u8fc7 socket() \u51fd\u6570\u521b\u5efa\u7684\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u3002<\/p>\n

addr：\u6307\u5411 struct sockaddr \u7c7b\u578b\u7684\u6307\u9488，\u5176\u4e2d\u5305\u542b\u4e86\u670d\u52a1\u5668\u7684\u5730\u5740\u4fe1\u606f（\u5982 IP \u5730\u5740\u548c\u7aef\u53e3\u53f7）\u3002\u5bf9
\n\u4e8e IPv4，\u901a\u5e38\u4f7f\u7528 struct sockaddr_in \u7ed3\u6784\u4f53；\u5bf9\u4e8e IPv6，\u5219\u4f7f\u7528 struct sockaddr_in6 \u7ed3\u6784\u4f53\u3002<\/p>\n

addrlen：addr \u7ed3\u6784\u4f53\u7684\u957f\u5ea6，\u7c7b\u578b\u4e3a socklen_t\u3002<\/p>\n

\u8fd4\u56de\u503c：
\n \u6210\u529f，\u8fd4\u56de 0，\u8868\u793a\u8fde\u63a5\u5df2\u5efa\u7acb\u3002
\n \u5931\u8d25，\u8fd4\u56de -1，\u5e76\u8bbe\u7f6e errno \u6765\u6307\u793a\u5177\u4f53\u7684\u9519\u8bef\u539f\u56e0\u3002<\/p>\n

\u529f\u80fd：
\n \u4e3b\u8981\u7528\u4e8e\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002\u901a\u8fc7\u8fd9\u4e2a\u51fd\u6570，\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0e\u6307\u5b9a IP \u5730\u5740\u548c\u7aef\u53e3\u7684\u670d\u52a1\u5668\u5efa\u7acb
\nTCP \u8fde\u63a5\u3002<\/p>\n

2. TCP \u56de\u663e\u670d\u52a1\u5668<\/h2>\n

\u00a0 \u00a0 \u4e92\u65a5\u9501\u7684\u5c01\u88c5\u6a21\u5757\u548c\u7ebf\u7a0b\u5b89\u5168\u7684\u65e5\u5fd7\u6a21\u5757\u53c2\u8003Linux \u7684 UDP \u7f51\u7edc\u7f16\u7a0b — \u56de\u663e\u670d\u52a1\u5668，\u7ffb\u8bd1\u670d\u52a1\u5668\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u91cc\u5148\u7ed9\u51fa\u5c01\u88c5\u7684\u6761\u4ef6\u53d8\u91cf\u6a21\u5757，\u7ebf\u7a0b\u6a21\u5757\u548c\u7ebf\u7a0b\u6c60\u6a21\u5757\u3002<\/p>\n

\/\/ \u6761\u4ef6\u53d8\u91cf\u6a21\u5757 — Cond.hpp
\n#pragma once<\/p>\n

#include <iostream>
\n#include <pthread.h>
\n#include "Mutex.hpp"<\/p>\n

using namespace MutexModule;<\/p>\n

namespace CondModule
\n{
\n class Cond
\n {
\n public:
\n Cond()
\n {
\n pthread_cond_init(&_cond, nullptr);
\n }<\/p>\n

void Wait(Mutex &mutex)
\n {
\n int n = pthread_cond_wait(&_cond, mutex.Get());
\n (void)n;
\n }<\/p>\n

void Signal()
\n {
\n \/\/ \u5524\u9192\u4e00\u4e2a\u5728\u6761\u4ef6\u53d8\u91cf\u4e0b\u7b49\u5f85\u7684\u7ebf\u7a0b
\n int n = pthread_cond_signal(&_cond);
\n (void)n;
\n }<\/p>\n

void Broadcast()
\n {
\n \/\/ \u5524\u9192\u6240\u6709\u5728\u6761\u4ef6\u53d8\u91cf\u4e0b\u7b49\u5f85\u7684\u7ebf\u7a0b
\n int n = pthread_cond_broadcast(&_cond);
\n (void)n;
\n }
\n ~Cond()
\n {
\n pthread_cond_destroy(&_cond);
\n }
\n private:
\n pthread_cond_t _cond;
\n };
\n}
\n\/\/ Thread.hpp
\n#pragma once
\n#include <iostream>
\n#include <string>
\n#include <cstring>
\n#include <functional>
\n#include <pthread.h>
\n#include "Log.hpp"<\/p>\n

namespace ThreadModule
\n{
\n using namespace LogModule;
\n static uint32_t number = 1;<\/p>\n

class Thread
\n {
\n using func_t = std::function<void()>;
\n private:
\n void EnableDetach()
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "thread's detach flag become to true";
\n _isdetach = true;
\n }<\/p>\n

void EnableRunning()
\n {
\n \/\/ LOG(LogLevel::DEBUG) << _name << " is started";
\n _isrunning = true;
\n }<\/p>\n

static void* Routine(void* args)
\n {
\n Thread * self = static_cast<Thread*>(args);
\n \/\/ \u5c06\u8fd0\u884c\u6807\u5fd7\u4f4d\u7f6e\u4e3atrue
\n self->EnableRunning();
\n \/\/ \u5982\u679c\u5206\u79bb\u6807\u5fd7\u4f4d\u4e3atrue，\u5219\u5206\u79bb\u7ebf\u7a0b
\n if (self->_isdetach)
\n {
\n int n = pthread_detach(self->_tid);
\n \/\/ LOG(LogLevel::DEBUG) << "thread is detached in Routine, the return value is " << n;
\n }
\n pthread_setname_np(self->_tid, self->_name.c_str());
\n self->_func();<\/p>\n

return nullptr;
\n }
\n public:
\n \/\/ \u6784\u9020\u51fd\u6570，\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u5165\u53e3\u51fd\u6570\u5730\u5740
\n Thread(func_t func)
\n : _tid(0), _isdetach(false), _isrunning(false), res(nullptr), _func(func)
\n {
\n _name = "thread-" + std::to_string(number++);
\n }<\/p>\n

bool Start()
\n {
\n \/\/ 1. \u5982\u679c\u7ebf\u7a0b\u5df2\u7ecf\u8fd0\u884c\u8d77\u6765，\u9632\u6b62\u518d\u6b21\u542f\u52a8，\u76f4\u63a5\u8fd4\u56defalse
\n if (_isrunning)
\n return false;<\/p>\n

\/\/ 2. \u5982\u679c\u7ebf\u7a0b\u7b2c\u4e00\u6b21\u542f\u52a8，\u5219\u521b\u5efa\u7ebf\u7a0b
\n \/\/ \u8fd9\u91cc\u5982\u679cRoutine\u4e0d\u662f\u9759\u6001\u6210\u5458\u51fd\u6570，\u9ed8\u8ba4\u4f1a\u6709\u4e00\u4e2athis\u6307\u9488\u53c2\u6570，\u4e0epthread_create\u4e2d\u7684\u53c2\u6570\u4e0d\u5339\u914d
\n \/\/ \u6240\u4ee5\u8fd9\u91cc\u4f7f\u7528\u9759\u6001\u6210\u5458\u51fd\u6570，\u5c06\u8be5\u7ebf\u7a0b\u5bf9\u8c61\u4ee5\u53c2\u6570this\u7684\u5f62\u5f0f\u4f20\u7ed9pthread_create
\n int n = pthread_create(&_tid, nullptr, Routine, this);
\n \/\/ \u521b\u5efa\u7ebf\u7a0b\u5931\u8d25\u8fd4\u56defalse
\n if (n != 0)
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "create thread error " << strerror(n);
\n return false;
\n }
\n else
\n {
\n \/\/ LOG(LogLevel::DEBUG) << _name << " create success";
\n return true;
\n }
\n }<\/p>\n

void Detach()
\n {
\n \/\/ \/\/ \u9700\u8981\u5904\u7406\u4e24\u79cd\u60c5\u51b5
\n \/\/ \/\/ \u60c5\u51b51：\u5728\u7ebf\u7a0b\u8fd8\u6ca1\u6709\u542f\u52a8\u7684\u65f6\u5019，\u8c03\u7528Detach\u8bbe\u7f6e\u7ebf\u7a0b\u5206\u79bb\u6807\u5fd7\u4f4d，\u7136\u540e\u7ebf\u7a0b\u542f\u52a8\u4e4b\u540e\u5728Routine\u51fd\u6570\u4e2d\u8fdb\u884c\u5206\u79bb
\n \/\/ \/\/ \u60c5\u51b52：\u5728\u7ebf\u7a0b\u542f\u52a8\u4e4b\u540e\u8c03\u7528Detach\u8bbe\u7f6e\u7ebf\u7a0b\u5206\u79bb\u6807\u5fd7\u4f4d，\u4ee5\u53ca\u5206\u79bb\u7ebf\u7a0b
\n \/\/ \u5982\u679c\u7ebf\u7a0b\u5df2\u7ecf\u5206\u79bb，\u76f4\u63a5\u8fd4\u56de
\n if (_isdetach)
\n {
\n \/\/ LOG(LogLevel::DEBUG) << _name << " is already detached. No further action needed.";
\n return;
\n }<\/p>\n

\/\/ \u5982\u679c\u7ebf\u7a0b\u8fd8\u6ca1\u6709\u542f\u52a8，\u8bbe\u7f6e\u7ebf\u7a0b\u5206\u79bb\u6807\u5fd7\u4f4d
\n if (!_isrunning)
\n {
\n EnableDetach();
\n return;
\n }
\n else
\n {
\n \/\/ \u542f\u52a8\u540e\u8bbe\u7f6e\u7ebf\u7a0b\u5206\u79bb，\u9700\u8981\u8bbe\u7f6e\u6807\u5fd7\u4f4d\u4e4b\u540e\u518d\u8fdb\u884c\u7ebf\u7a0b\u5206\u79bb
\n EnableDetach();
\n int n = pthread_detach(_tid);
\n \/\/ LOG(LogLevel::DEBUG) << "thread is detched, the return value is " << n;
\n }
\n }<\/p>\n

bool Stop()
\n {
\n \/\/ \u5982\u679c\u8fd0\u884c\u6807\u5fd7\u4f4d\u4e3atrue，\u53d6\u6d88\u7ebf\u7a0b\u5e76\u5c06\u8fd0\u884c\u6807\u5fd7\u4f4d\u7f6e\u4e3afalse
\n if (_isrunning)
\n {
\n int n = pthread_cancel(_tid);
\n if (n != 0)
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "cancel thread error" << strerror(n);
\n return false;
\n }
\n else
\n {
\n _isrunning = false;
\n \/\/ LOG(LogLevel::DEBUG) << _name << " stop";
\n return true;
\n }
\n }<\/p>\n

return false;
\n }<\/p>\n

void Join()
\n {
\n \/\/ \u5206\u79bb\u7684\u7ebf\u7a0b\u4e0d\u80fd\u88ab\u7b49\u5f85
\n if (_isdetach)
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "thread is detached. it can't be joined! ";
\n return;
\n }
\n int n = pthread_join(_tid, &res);
\n if (n != 0)
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "join thread error";
\n }
\n else
\n {
\n \/\/ LOG(LogLevel::DEBUG) << "join thread success";
\n }
\n }<\/p>\n

std::string GetName()
\n {
\n return _name;
\n }<\/p>\n

pthread_t Id()
\n {
\n return _tid;
\n }
\n ~Thread()
\n {<\/p>\n

}
\n private:
\n pthread_t _tid; \/\/ \u7ebf\u7a0bID
\n std::string _name; \/\/ \u7ebf\u7a0b\u540d\u5b57
\n bool _isdetach; \/\/ \u7ebf\u7a0b\u5206\u79bb\u6807\u5fd7\u4f4d
\n bool _isrunning; \/\/ \u7ebf\u7a0b\u8fd0\u884c\u6807\u5fd7\u4f4d
\n void *res; \/\/ \u7ebf\u7a0b\u8fd4\u56de\u503c
\n func_t _func; \/\/ \u7ebf\u7a0b\u5165\u53e3\u51fd\u6570
\n };
\n}<\/p>\n

\/\/ \u7ebf\u7a0b\u6c60\u6a21\u5757 — ThreadPool.hpp
\n\/\/ \u61d2\u6c49\u5f0f\u5355\u4f8b\u6a21\u5f0f\u7ebf\u7a0b\u6c60<\/p>\n

#pragma once<\/p>\n

#include <iostream>
\n#include <string>
\n#include <vector>
\n#include <queue>
\n#include "Log.hpp"
\n#include "Thread.hpp"
\n#include "Cond.hpp"
\n#include "Mutex.hpp"<\/p>\n

namespace ThreadPoolModule
\n{
\n using namespace ThreadModule;
\n using namespace LogModule;
\n using namespace CondModule;
\n using namespace MutexModule;<\/p>\n

static const int gnum = 5; \/\/ \u4f7f\u7528\u5168\u5c40\u53d8\u91cf\u6765\u8868\u793a\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u9ed8\u8ba4\u7684\u7ebf\u7a0b\u6570\u91cf<\/p>\n

template <typename T> \/\/ \u4f7f\u7528\u6a21\u7248\u7684\u65b9\u5f0f\u4f7f\u7ebf\u7a0b\u6c60\u652f\u6301\u591a\u7c7b\u578b\u7684\u4efb\u52a1
\n class ThreadPool
\n {
\n private:
\n void WakeUpAllThread()
\n {
\n if (_sleep_num)
\n _cond.Broadcast();<\/p>\n

LOG(LogLevel::DEBUG) << "\u5524\u9192\u6240\u6709\u4f11\u7720\u7ebf\u7a0b";
\n }<\/p>\n

void WakeOne()
\n {
\n _cond.Signal();
\n LOG(LogLevel::INFO) << "\u5524\u9192\u4e00\u4e2a\u4f11\u7720\u7684\u7ebf\u7a0b";
\n }<\/p>\n

\/\/ \u79c1\u6709\u5316\u6784\u9020\u51fd\u6570
\n ThreadPool(int num = gnum)
\n : _num(num),
\n _isrunning(false),
\n _sleep_num(0)
\n {
\n for (int i = 0; i < _num; i++)
\n {
\n _threads.emplace_back([this]()
\n { HandlerTask(); }); \/\/ \u8c03\u7528\u7ebf\u7a0b\u7684\u6784\u9020\u51fd\u6570，\u7ebf\u7a0b\u7684\u6784\u9020\u51fd\u6570\u5f62\u53c2\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570
\n }
\n }<\/p>\n

void Start()
\n {
\n if (_isrunning)
\n return;
\n _isrunning = true;
\n for (auto &thread : _threads)
\n {
\n thread.Start();
\n }
\n }<\/p>\n

\/\/ \u7981\u7528\u62f7\u8d1d\u6784\u9020\u548c\u8d4b\u503c\u8fd0\u7b97\u7b26
\n ThreadPool(const ThreadPool<T> &) = delete;
\n ThreadPool<T> &operator=(const ThreadPool<T> &) = delete;<\/p>\n

public:
\n static ThreadPool<T> *GetInstance()
\n {
\n if (inc == nullptr) \/\/ \u7b2c\u4e00\u6b21\u521b\u5efa\u7684\u65f6\u5019\u9700\u8981\u52a0\u9501，\u4fdd\u8bc1\u521b\u5efa\u662f\u539f\u5b50\u6027\u7684
\n {
\n LockGuard lockGuard(_gmutex);
\n if (inc == nullptr) \/\/ \u53cc\u5c42\u5224\u65ad，\u4fdd\u8bc1\u53ea\u4f1a\u521b\u5efa\u4e00\u4e2a\u5355\u4f8b
\n {
\n LOG(LogLevel::DEBUG) << "\u9996\u6b21\u4f7f\u7528, \u521b\u5efa\u5355\u4f8b…";
\n inc = new ThreadPool<T>();
\n inc->Start();
\n }
\n }
\n return inc;
\n }<\/p>\n

void HandlerTask()
\n {
\n char name[64];
\n pthread_getname_np(pthread_self(), name, sizeof(name));
\n while (true)
\n {
\n T t;
\n \/\/ \u5904\u7406\u4efb\u52a1
\n {
\n LockGuard lockGuard(_mutex);
\n \/\/ 1. \u961f\u5217\u4e3a\u7a7a，\u7ebf\u7a0b\u6c60\u6ca1\u6709\u9000\u51fa，\u8fdb\u884c\u4f11\u7720
\n while (_taskq.empty() && _isrunning)
\n {
\n _sleep_num++;
\n LOG(LogLevel::INFO) << name << " \u8fdb\u5165\u4f11\u7720";
\n _cond.Wait(_mutex);
\n _sleep_num–;
\n }
\n \/\/ 2. \u4efb\u52a1\u4e3a\u7a7a，\u7ebf\u7a0b\u6c60\u9000\u51fa，\u5219\u8be5\u7ebf\u7a0b\u9000\u51fa
\n if (!_isrunning && _taskq.empty())
\n {
\n LOG(LogLevel::INFO) << name << " \u9000\u51fa, \u56e0\u4e3a\u7ebf\u7a0b\u6c60\u9000\u51fa&&\u4efb\u52a1\u961f\u5217\u4e3a\u7a7a";
\n break;
\n }<\/p>\n

\/\/ 3. \u83b7\u53d6\u4efb\u52a1
\n t = _taskq.front();
\n _taskq.pop();
\n }
\n t(); \/\/ 4. \u5904\u7406\u4efb\u52a1
\n \/\/ LOG(LogLevel::DEBUG) << name << " is running";
\n }
\n }<\/p>\n

bool Enqueue(const T &in)
\n {
\n if (_isrunning) \/\/ \u5982\u679c\u7ebf\u7a0b\u6c60\u505c\u6b62，\u5219\u505c\u6b62\u5165\u4efb\u52a1
\n {
\n LockGuard lockGuard(_mutex);
\n _taskq.push(in);
\n \/\/ if (_threads.size() == _sleep_num) \/\/ \u5982\u679c\u5168\u90e8\u7ebf\u7a0b\u90fd\u5728\u4f11\u7720，\u5219\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b
\n WakeOne();
\n return true;
\n }
\n return false;
\n }<\/p>\n

void Stop()
\n {
\n \/\/ 1. \u5c06\u8fd0\u884c\u6807\u5fd7\u4f4d\u7f6e\u4e3afalse
\n LockGuard lockGuard(_mutex);
\n if (!_isrunning)
\n return;
\n _isrunning = false;<\/p>\n

\/\/ 2. \u5524\u9192\u4f11\u7720\u7684\u7ebf\u7a0b，\u7136\u540e\u518dHandlerTask\u4e2d\u8fdb\u884c\u9000\u51fa
\n WakeUpAllThread();
\n }<\/p>\n

void Join()
\n {
\n for (auto &thread : _threads)
\n {
\n thread.Join();
\n LOG(LogLevel::INFO) << thread.GetName() << " \u88abJoin";
\n }
\n }<\/p>\n

~ThreadPool()
\n {
\n }<\/p>\n

private:
\n std::vector<Thread> _threads;
\n int _num; \/\/ \u7ebf\u7a0b\u6570\u91cf
\n std::queue<T> _taskq; \/\/ \u4efb\u52a1\u961f\u5217
\n Cond _cond;
\n Mutex _mutex;
\n bool _isrunning;
\n int _sleep_num;<\/p>\n

static ThreadPool<T> *inc; \/\/ \u5355\u4f8b\u6307\u9488
\n static Mutex _gmutex; \/\/ \u7528\u4e8e\u591a\u7ebf\u7a0b\u573a\u666f\u4e0b\u4fdd\u62a4\u5355\u4f8b\u4e0d\u88ab\u591a\u6b21\u521b\u5efa
\n };<\/p>\n

template <typename T>
\n ThreadPool<T> *ThreadPool<T>::inc = nullptr; \/\/ \u9759\u6001\u6210\u5458\u53d8\u91cf\u9700\u8981\u5728\u7c7b\u5916\u8fdb\u884c\u521d\u59cb\u5316
\n template <typename T>
\n Mutex ThreadPool<T>::_gmutex; \/\/ \u81ea\u52a8\u8c03\u7528Mutex\u7684\u6784\u9020\u51fd\u6570\u8fdb\u884c\u521d\u59cb\u5316
\n} <\/p>\n

2.1 Common.hpp<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6e90\u6587\u4ef6\u4e2d\u5305\u542b\u4e86\u6574\u4e2a\u9879\u76ee\u6240\u4f7f\u7528\u7684\u901a\u7528\u7684\u5934\u6587\u4ef6，\u5b8f\u5b9a\u4e49，\u7ed3\u6784\u4f53\u3002<\/p>\n

#pragma once<\/p>\n

#include <iostream>
\n#include <memory>
\n#include <functional>
\n#include <unistd.h>
\n#include <string>
\n#include <cstring>
\n#include <signal.h>
\n#include <sys\/types.h>
\n#include <sys\/socket.h>
\n#include <sys\/wait.h>
\n#include <arpa\/inet.h>
\n#include <netinet\/in.h>
\n#include "Log.hpp"
\n#include "ThreadPool.hpp"<\/p>\n

using namespace LogModule;
\nusing namespace ThreadPoolModule;<\/p>\n

\/\/ \u5f3a\u8f6c struct sockaddr_in * \u4e3a struct sockaddr * \u7684\u5b8f
\n#define CONV(addr) ((struct sockaddr*)&addr)<\/p>\n

\/\/ \u5c06\u5404\u79cd\u9519\u8bef\u7684\u9519\u8bef\u7801\u7528\u4e00\u4e2a\u679a\u4e3e\u7c7b\u578b\u8868\u793a
\nenum EixtCode
\n{
\n OK,
\n USAGE_ERR,
\n SOCKET_ERR,
\n BIND_ERR,
\n LISTEN_ERR,
\n CONNECT_ERR,
\n FORK_ERR
\n};<\/p>\n

\/\/ \u6ca1\u6709\u62f7\u8d1d\u6784\u9020\u548c\u8d4b\u503c\u91cd\u8f7d\u7684\u57fa\u7c7b
\nclass NoCopy
\n{
\npublic:
\n NoCopy(){}
\n ~NoCopy(){}
\n NoCopy(const NoCopy &) = delete;
\n const NoCopy &operator=(const NoCopy&) = delete;
\n};<\/p>\n

2.2 InetAddr.hpp<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6e90\u6587\u4ef6\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7f51\u7edc\u5e8f\u5217\u548c\u4e3b\u673a\u5e8f\u5217\u5b58\u50a8\u53ca\u76f8\u4e92\u8f6c\u6362\u7684\u7c7b InetAddr，\u4e3b\u8981\u7528\u4e8e\u4e3b\u673a\u5e8f\u5217\u548c\u7f51\u7edc\u5e8f\u5217\u4e4b\u95f4\u7684\u76f8\u4e92\u8f6c\u6362\u3002<\/p>\n

#pragma once<\/p>\n

#include "Common.hpp"<\/p>\n

class InetAddr
\n{
\npublic:
\n InetAddr(){};
\n \/\/ \u4f7f\u7528\u5957\u63a5\u5b57\u521b\u5efa\u5bf9\u8c61\u7684\u6784\u9020\u51fd\u6570
\n InetAddr(struct sockaddr_in &addr) : _addr(addr)
\n {
\n _port = ntohs(_addr.sin_port);
\n char ipbuffer[64];
\n inet_ntop(AF_INET, &_addr.sin_addr, ipbuffer, sizeof(_addr));
\n _ip = ipbuffer;
\n }<\/p>\n

\/\/ \u4f7f\u7528\u4e3b\u673a\u5e8f\u5217\u521b\u5efa\u7684\u6784\u9020\u51fd\u6570
\n InetAddr(std::string &ip, uint16_t port) : _ip(ip), _port(port)
\n {
\n memset(&_addr, 0, sizeof(_addr));
\n _addr.sin_family = AF_INET;
\n _addr.sin_port = htons(_port);
\n inet_pton(AF_INET, _ip.c_str(), &_addr.sin_addr);
\n }<\/p>\n

\/\/ \u4ec5\u4f7f\u7528\u7aef\u53e3\u53f7\u521b\u5efa，ip \u8bbe\u4e3a INADDR_ANY
\n InetAddr(uint16_t port) : _port(port), _ip()
\n {
\n memset(&_addr, 0, sizeof(_addr));
\n _addr.sin_family = AF_INET;
\n _addr.sin_port = htons(_port);
\n _addr.sin_addr.s_addr = INADDR_ANY;
\n }<\/p>\n

uint16_t Port() { return _port; }
\n std::string Ip() { return _ip; }
\n const struct sockaddr_in &NetAddr() { return _addr; }
\n const struct sockaddr *NetAddrPtr() { return CONV(_addr); }
\n socklen_t NetAddrLen() { return sizeof(_addr); }
\n bool operator==(const InetAddr &addr) { return addr._ip == _ip && addr._port == _port; }
\n std::string StringAddr() { return _ip + ":" + std::to_string(_port); }
\n ~InetAddr() {}<\/p>\n

private:
\n struct sockaddr_in _addr;
\n std::string _ip;
\n uint16_t _port;
\n};<\/p>\n

2.3 TcpClient.cc<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6587\u4ef6\u4e3a\u9879\u76ee\u4e2d\u7684\u5ba2\u6237\u7aef\u6587\u4ef6\u3002<\/p>\n

#include "Common.hpp"
\n#include "InetAddr.hpp"<\/p>\n

void Usage(std::string proc)
\n{
\n std::cerr << "Usage: " << proc << " server_ip server_port" << std::endl;
\n}<\/p>\n

\/\/ .\/tcpclient server_ip server_port
\nint main(int argc, char *argv[])
\n{
\n if (argc != 3)
\n {
\n Usage(argv[0]);
\n exit(USAGE_ERR);
\n }<\/p>\n

std::string server_ip = argv[1];
\n uint16_t server_port = std::stoi(argv[2]);<\/p>\n

\/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6
\n int sockfd = socket(AF_INET, SOCK_STREAM, 0);
\n if (sockfd < 0)
\n {
\n LOG(LogLevel::FATAL) << "socket error";
\n exit(SOCKET_ERR);
\n }
\n LOG(LogLevel::INFO) << "socket success";<\/p>\n

\/\/ 2. \u76f4\u63a5\u5411\u76ee\u6807\u670d\u52a1\u5668\u53d1\u8d77\u5efa\u7acb\u8fde\u63a5\u7684\u8bf7\u6c42
\n InetAddr serverAddr(server_ip, server_port);
\n int n = connect(sockfd, serverAddr.NetAddrPtr(), serverAddr.NetAddrLen());
\n if (n < 0)
\n {
\n LOG(LogLevel::FATAL) << "connect error";
\n exit(CONNECT_ERR);
\n }
\n LOG(LogLevel::INFO) << "connect success";<\/p>\n

\/\/ 3. echo client
\n while (true)
\n {
\n \/\/ 3.1 \u53d1\u6d88\u606f
\n std::string line;
\n std::cout << "Please Enter# ";
\n std::getline(std::cin, line);
\n if (line.empty())
\n continue;
\n write(sockfd, line.c_str(), line.size());<\/p>\n

\/\/ 3.2 \u6536\u6d88\u606f
\n char buffer[1024];
\n ssize_t s = read(sockfd, buffer, sizeof(buffer) – 1);
\n if (s > 0)
\n {
\n buffer[s] = 0;
\n std::cout << buffer << std::endl;
\n }
\n }
\n return 0;
\n} <\/p>\n

2.4 TcpServer.hpp<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6e90\u6587\u4ef6\u4e3a\u56de\u663e\u670d\u52a1\u5668\u7684\u5c01\u88c5\u6587\u4ef6，\u5176\u4e2d\u7ed9\u51fa\u4e86\u56de\u663e\u670d\u52a1\u5668\u7684\u591a\u8fdb\u7a0b\u7248\u672c，\u591a\u7ebf\u7a0b\u7248\u672c\u4ee5\u53ca\u7ebf\u7a0b\u6c60\u7248\u672c\u3002\u8fd9\u91cc\u9009\u62e9\u7ebf\u7a0b\u6c60\u7248\u672c\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n

#pragma once<\/p>\n

#include "Common.hpp"
\n#include "InetAddr.hpp"
\n#include <iostream>
\n#include <functional><\/p>\n

using func_t = std::function<std::string(const std::string &, InetAddr &)>;
\nusing task_t = std::function<void()>;<\/p>\n

const static int defaultSockfd = -1;
\nconst static int backlog = 8;<\/p>\n

\/\/ \u670d\u52a1\u5668\u5f80\u5f80\u662f\u7981\u6b62\u62f7\u8d1d\u7684
\nclass TcpServer
\n{
\npublic:
\n \/\/ \u77ed\u670d\u52a1 — \u5904\u7406\u4e00\u6b21\u4e4b\u540e\u9000\u51fa
\n \/\/ \u957f\u670d\u52a1 — \u5ba2\u6237\u7aef\u4e0d\u9000\u51fa\u670d\u52a1\u7aef\u4e0d\u9000\u51fa
\n void Service(int sockfd, InetAddr peer)
\n {
\n char buffer[1024];
\n while (true)
\n {
\n \/\/ 1. \u8bfb\u53d6\u6570\u636e
\n ssize_t n = read(sockfd, buffer, sizeof(buffer) – 1);
\n if (n > 0) \/\/ \u8bfb\u53d6\u6210\u529f
\n {
\n buffer[n] = 0;
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " # " << buffer;
\n std::string echo_string = "echo @ ";
\n echo_string += buffer;<\/p>\n

\/\/ 2. \u5199\u56de\u6570\u636e
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n }
\n else if (n == 0) \/\/ \u5ba2\u6237\u7aef\u628a\u8fde\u63a5\u5173\u95ed\u4e86，\u8bfb\u5230\u6587\u4ef6\u7684\u7ed3\u5c3e，\u7c7b\u4f3c pipe
\n {
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " \u9000\u51fa\u4e86…";
\n close(sockfd);
\n break;
\n }
\n else \/\/ \u8bfb\u53d6\u5f02\u5e38
\n {
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " \u8bfb\u53d6\u5f02\u5e38…";
\n close(sockfd);
\n break;
\n }
\n }
\n }<\/p>\n

public:
\n TcpServer(uint16_t port)
\n : _port(port),
\n _listen_sockfd(defaultSockfd),
\n _isrunning(false)
\n {
\n }<\/p>\n

void Init()
\n {
\n \/\/ signal(SIGCHLD, SIG_IGN); \/\/ \u5b50\u8fdb\u7a0b\u9000\u51fa，\u81ea\u52a8\u56de\u6536
\n \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6
\n _listen_sockfd = socket(AF_INET, SOCK_STREAM, 0);
\n if (_listen_sockfd < 0)
\n {
\n LOG(LogLevel::FATAL) << "socket error";
\n exit(SOCKET_ERR);
\n }
\n LOG(LogLevel::INFO) << "socket success: " << _listen_sockfd;<\/p>\n

\/\/ 2. bind \u7aef\u53e3\u53f7，\u670d\u52a1\u5668 ip \u4e0d\u663e\u793a\u7ed1\u5b9a
\n InetAddr local(_port);
\n int n = bind(_listen_sockfd, local.NetAddrPtr(), local.NetAddrLen());
\n if (n < 0)
\n {
\n LOG(LogLevel::FATAL) << "bind error";
\n exit(BIND_ERR);
\n }
\n LOG(LogLevel::INFO) << "bind success: " << _listen_sockfd;<\/p>\n

\/\/ 3. \u8bbe\u7f6e _listen_sockfd \u4e3a listen \u72b6\u6001
\n n = listen(_listen_sockfd, backlog);
\n if (n < 0)
\n {
\n LOG(LogLevel::FATAL) << "listen error";
\n exit(LISTEN_ERR);
\n }
\n LOG(LogLevel::INFO) << "listen success: " << _listen_sockfd;
\n }<\/p>\n

class ThreadData
\n {
\n public:
\n ThreadData(int sockfd, InetAddr addr, TcpServer *tsvr)
\n : _sockfd(sockfd),
\n _addr(addr),
\n _tsvr(tsvr)
\n {
\n }<\/p>\n

public:
\n int _sockfd;
\n InetAddr _addr;
\n TcpServer *_tsvr;
\n };<\/p>\n

static void *Routine(void *args)
\n {
\n \/\/ \u5206\u79bb\u7ebf\u7a0b，\u5b50\u7ebf\u7a0b\u9000\u51fa\u81ea\u52a8\u56de\u6536
\n pthread_detach(pthread_self());
\n ThreadData* td = static_cast<ThreadData *>(args);
\n td->_tsvr->Service(td->_sockfd, td->_addr);
\n delete td;
\n return nullptr;
\n }<\/p>\n

void Run()
\n {
\n _isrunning = true;
\n while (_isrunning)
\n {
\n \/\/ 1. \u83b7\u53d6\u8fde\u63a5
\n struct sockaddr_in peer;
\n socklen_t len = sizeof(peer);
\n int sockfd = accept(_listen_sockfd, CONV(peer), &len); \/\/ \u5982\u679c\u6ca1\u6709\u8fde\u63a5，accept \u4f1a\u963b\u585e
\n if (sockfd < 0)
\n {
\n LOG(LogLevel::WARNING) << "accept error";
\n continue;
\n }
\n InetAddr addr(peer);
\n LOG(LogLevel::INFO) << "accept success, peer addr : " << addr.StringAddr() << " sockfd: " << sockfd;<\/p>\n

\/\/ 2.1 version0 — test version — \u53ea\u80fd\u7ed9\u4e00\u4e2a\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1 — \u4e0d\u4f1a\u5b58\u5728
\n \/\/ Service(sockfd, addr);<\/p>\n

\/\/ 2.2 version1 — \u591a\u8fdb\u7a0b\u7248\u672c
\n \/\/ pid_t id = fork();
\n \/\/ if (id < 0)
\n \/\/ {
\n \/\/ LOG(LogLevel::FATAL) << "fork error";
\n \/\/ exit(FORK_ERR);
\n \/\/ }
\n \/\/ else if (id == 0)
\n \/\/ {
\n \/\/ \/\/ \u5b50\u8fdb\u7a0b
\n \/\/ close(_listen_sockfd);
\n \/\/ if (fork() > 0) \/\/ \u5b50\u8fdb\u7a0b
\n \/\/ exit(OK);<\/p>\n

\/\/ \/\/ \u5b59\u8fdb\u7a0b
\n \/\/ Service(sockfd, addr); \/\/ \u5f53\u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u53d8\u6210\u5b64\u513f\u8fdb\u7a0b，\u670d\u52a1\u7ed3\u675f\u7cfb\u7edf\u8fdb\u884c\u56de\u6536
\n \/\/ exit(OK);
\n \/\/ }
\n \/\/ else
\n \/\/ {
\n \/\/ \/\/ \u7236\u8fdb\u7a0b
\n \/\/ close(sockfd);
\n \/\/ pid_t rid = waitpid(id, nullptr, 0);
\n \/\/ (void)rid;
\n \/\/ }<\/p>\n

\/\/ 2.3 version2 — \u591a\u7ebf\u7a0b\u7248\u672c
\n \/\/ ThreadData *td = new ThreadData(sockfd, addr, this);
\n \/\/ pthread_t tid;
\n \/\/ pthread_create(&tid, nullptr, Routine, td);<\/p>\n

\/\/ 2.4 version3 — \u7ebf\u7a0b\u6c60\u7248\u672c — \u7ebf\u7a0b\u6c60\u4e00\u822c\u6bd4\u8f83\u9002\u5408\u5904\u7406\u77ed\u670d\u52a1
\n ThreadPool<task_t>::GetInstance()->Enqueue([this, sockfd, addr](){
\n \/\/ LOG(LogLevel::DEBUG) << "\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u5165\u7ebf\u7a0b\u6c60";
\n this->Service(sockfd, addr);
\n });
\n }
\n _isrunning = false;
\n }
\n ~TcpServer() {}<\/p>\n

private:
\n uint16_t _port;
\n int _listen_sockfd; \/\/ \u76d1\u542csocket
\n bool _isrunning;
\n \/\/ func_t _func; \/\/ \u56de\u8c03\u5904\u7406\u51fd\u6570
\n}; <\/p>\n

2.5 TcpServer.cc<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8be5\u6e90\u6587\u4ef6\u4e3a\u670d\u52a1\u7aef\u7684\u6587\u4ef6\u3002<\/p>\n

#include "TcpServer.hpp"
\n#include "Common.hpp"<\/p>\n

void Usage(std::string proc)
\n{
\n std::cerr << "Usage: " << proc << " port" << std::endl;
\n}<\/p>\n

\/\/ .\/tcpserver server_port
\nint main(int argc, char *argv[])
\n{
\n if (argc != 2)
\n {
\n Usage(argv[0]);
\n exit(USAGE_ERR);
\n }<\/p>\n

uint16_t port = std::stoi(argv[1]);
\n Enable_Console_Log_Strategy();<\/p>\n

\/\/ 1. \u521b\u5efa\u901a\u4fe1\u5bf9\u8c61
\n std::unique_ptr<TcpServer> tsvr = std::make_unique<TcpServer>(port);<\/p>\n

tsvr->Init();
\n tsvr->Run();
\n return 0;
\n} <\/p>\n

2.6 demo \u6d4b\u8bd5<\/h3>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5982\u4e0a\u56fe\u6240\u793a，\u542f\u52a8\u670d\u52a1\u7aef，\u7ed1\u5b9a\u7aef\u53e3\u53f7 8888，\u5148\u521b\u5efa\u5957\u63a5\u5b57，\u7136\u540e\u8fdb\u884c\u7ed1\u5b9a，\u5728\u5c06\u670d\u52a1\u5668\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001，\u4f7f\u5ba2\u6237\u7aef\u80fd\u591f\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5\u7684\u65f6\u5019，\u9996\u6b21\u4f7f\u7528\u7ebf\u7a0b\u6c60，\u5219\u521b\u5efa\u7ebf\u7a0b\u6c60\u5355\u4f8b\u5e76\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b\u7ed9\u8be5\u5ba2\u6237\u7aef\u8fdb\u884c\u670d\u52a1\u3002\u5f53\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5\u7684\u65f6\u5019，\u4e0d\u7528\u518d\u521b\u5efa\u7ebf\u7a0b\u6c60\u4e86，\u5219\u5524\u9192\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7ed9\u8be5\u5ba2\u6237\u7aef\u63d0\u4f9b\u670d\u52a1\u3002\u00a0<\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u9000\u51fa\u4e4b\u540e，\u8be5\u7ebf\u7a0b\u7ed3\u675f\u670d\u52a1，\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002<\/p>\n

\"\"<\/p>\n

3. TCP \u7ffb\u8bd1\u670d\u52a1\u5668<\/h2>\n

\u00a0 \u8fd9\u91cc\u7ffb\u8bd1\u7684\u5b57\u5178\u6587\u4ef6\u4ee5\u53ca\u5b57\u5178\u7ed3\u6784\u4f53\u7684\u5c01\u88c5\u53c2\u8003Linux \u7684 UDP \u7f51\u7edc\u7f16\u7a0b — \u56de\u663e\u670d\u52a1\u5668，\u7ffb\u8bd1\u670d\u52a1\u5668\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4ec5\u4ec5\u4fee\u6539 TcpServer.cc \u4ee5\u53ca TcpServer.hpp \u6587\u4ef6\u5373\u53ef，\u8fd9\u91cc\u7684\u670d\u52a1\u5668\u4f7f\u7528\u591a\u7ebf\u7a0b\u7248\u672c，\u5c06\u56de\u663e\u670d\u52a1\u4ece\u670d\u52a1\u5668\u4e2d\u5206\u5c42\u5230\u5e94\u7528\u5c42，\u5e76\u66ff\u6362\u4e3a\u7ffb\u8bd1\u670d\u52a1\u3002<\/p>\n

\/\/ TcpServer.hpp
\n#pragma once<\/p>\n

#include "Common.hpp"
\n#include "InetAddr.hpp"
\n#include <iostream>
\n#include <functional><\/p>\n

using func_t = std::function<std::string(const std::string &, InetAddr &)>;
\nusing task_t = std::function<void()>;<\/p>\n

const static int defaultSockfd = -1;
\nconst static int backlog = 8;<\/p>\n

class TcpServer
\n{
\npublic:
\n void Service(int sockfd, InetAddr peer)
\n {
\n char buffer[1024];
\n while (true)
\n {
\n \/\/ 1. \u8bfb\u53d6\u82f1\u6587\u5355\u8bcd\u6570\u636e
\n ssize_t n = read(sockfd, buffer, sizeof(buffer) – 1);
\n if (n > 0) \/\/ \u8bfb\u53d6\u6210\u529f
\n {
\n buffer[n] = 0;
\n std::string echo_string = _func(buffer, peer);
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " # " << buffer;<\/p>\n

\/\/ 2. \u5199\u56de\u4e2d\u6587\u6570\u636e
\n write(sockfd, echo_string.c_str(), echo_string.size());
\n }
\n else if (n == 0)
\n {
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " \u9000\u51fa\u4e86…";
\n close(sockfd);
\n break;
\n }
\n else \/\/ \u8bfb\u53d6\u5f02\u5e38
\n {
\n LOG(LogLevel::DEBUG) << peer.StringAddr() << " \u8bfb\u53d6\u5f02\u5e38…";
\n close(sockfd);
\n break;
\n }
\n }
\n }<\/p>\n

public:
\n TcpServer(uint16_t port, func_t func)
\n : _port(port),
\n _listen_sockfd(defaultSockfd),
\n _isrunning(false),
\n _func(func)
\n {
\n }<\/p>\n

void Init()
\n {
\n \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57\u6587\u4ef6
\n _listen_sockfd = socket(AF_INET, SOCK_STREAM, 0);
\n if (_listen_sockfd < 0)
\n {
\n LOG(LogLevel::FATAL) << "socket error";
\n exit(SOCKET_ERR);
\n }
\n LOG(LogLevel::INFO) << "socket success: " << _listen_sockfd;<\/p>\n

\/\/ 2. bind \u7aef\u53e3\u53f7，\u670d\u52a1\u5668 ip \u4e0d\u663e\u793a\u7ed1\u5b9a
\n InetAddr local(_port);
\n int n = bind(_listen_sockfd, local.NetAddrPtr(), local.NetAddrLen());
\n if (n < 0)
\n {
\n LOG(LogLevel::FATAL) << "bind error";
\n exit(BIND_ERR);
\n }
\n LOG(LogLevel::INFO) << "bind success: " << _listen_sockfd;<\/p>\n

\/\/ 3. \u8bbe\u7f6e _listen_sockfd \u4e3a listen \u72b6\u6001
\n n = listen(_listen_sockfd, backlog);
\n if (n < 0)
\n {
\n LOG(LogLevel::FATAL) << "listen error";
\n exit(LISTEN_ERR);
\n }
\n LOG(LogLevel::INFO) << "listen success: " << _listen_sockfd;
\n }<\/p>\n

class ThreadData
\n {
\n public:
\n ThreadData(int sockfd, InetAddr addr, TcpServer *tsvr)
\n : _sockfd(sockfd),
\n _addr(addr),
\n _tsvr(tsvr)
\n {
\n }<\/p>\n

public:
\n int _sockfd;
\n InetAddr _addr;
\n TcpServer *_tsvr;
\n };<\/p>\n

static void *Routine(void *args)
\n {
\n \/\/ \u5206\u79bb\u7ebf\u7a0b，\u5b50\u7ebf\u7a0b\u9000\u51fa\u81ea\u52a8\u56de\u6536
\n pthread_detach(pthread_self());
\n ThreadData* td = static_cast<ThreadData *>(args);
\n td->_tsvr->Service(td->_sockfd, td->_addr);
\n delete td;
\n return nullptr;
\n }<\/p>\n

void Run()
\n {
\n _isrunning = true;
\n while (_isrunning)
\n {
\n \/\/ 1. \u83b7\u53d6\u8fde\u63a5
\n struct sockaddr_in peer;
\n socklen_t len = sizeof(peer);
\n int sockfd = accept(_listen_sockfd, CONV(peer), &len); \/\/ \u5982\u679c\u6ca1\u6709\u8fde\u63a5，accept \u4f1a\u963b\u585e
\n if (sockfd < 0)
\n {
\n LOG(LogLevel::WARNING) << "accept error";
\n continue;
\n }
\n InetAddr addr(peer);
\n LOG(LogLevel::INFO) << "accept success, peer addr : " << addr.StringAddr() << " sockfd: " << sockfd;<\/p>\n

\/\/ 2.3 \u591a\u7ebf\u7a0b\u7248\u672c
\n ThreadData *td = new ThreadData(sockfd, addr, this);
\n pthread_t tid;
\n pthread_create(&tid, nullptr, Routine, td);
\n }
\n _isrunning = false;
\n }<\/p>\n

~TcpServer() {}<\/p>\n

private:
\n uint16_t _port;
\n int _listen_sockfd; \/\/ \u76d1\u542csocket
\n bool _isrunning;
\n func_t _func; \/\/ \u56de\u8c03\u5904\u7406\u51fd\u6570
\n};
\n\/\/ TcpServer.cc
\n#include "TcpServer.hpp"
\n#include "Common.hpp"
\n#include "Dict.hpp"<\/p>\n

void Usage(std::string proc)
\n{
\n std::cerr << "Usage: " << proc << " port" << std::endl;
\n}<\/p>\n

\/\/ .\/tcpserver server_port
\nint main(int argc, char *argv[])
\n{
\n if (argc != 2)
\n {
\n Usage(argv[0]);
\n exit(USAGE_ERR);
\n }<\/p>\n

uint16_t port = std::stoi(argv[1]);
\n Enable_Console_Log_Strategy();<\/p>\n

\/\/ 1. \u521b\u5efa\u5b57\u5178\u5bf9\u8c61
\n Dict d;
\n d.LoadDict();<\/p>\n

\/\/ 2. \u521b\u5efa\u901a\u4fe1\u5bf9\u8c61
\n std::unique_ptr<TcpServer> tsvr = std::make_unique<TcpServer>(port, [&d](const std::string &word, InetAddr &client)->std::string{
\n return d.Translate(word, client);
\n });<\/p>\n

tsvr->Init();
\n tsvr->Run();
\n return 0;
\n} <\/p>\n

3.1 demo \u6d4b\u8bd5<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u542f\u52a8\u670d\u52a1\u5668\u5e76\u7ed1\u5b9a 8888 \u53f7\u7aef\u53e3，\u5e76\u52a0\u8f7d\u5b57\u5178\u6587\u4ef6\u5230\u5185\u5b58\u4e2d，\u5c06\u7ed1\u5b9a\u5957\u63a5\u5b57\u5e76\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001\u3002<\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u542f\u52a8\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5，\u5e76\u8f93\u5165\u5b57\u7b26\u4e32\u8bf7\u6c42\u670d\u52a1\u7aef\u670d\u52a1\u3002<\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u91cc\u518d\u670d\u52a1\u7aef\u53ef\u4ee5\u770b\u5230\u670d\u52a1\u5668\u7684\u8fd0\u884c\u4fe1\u606f\u3002<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb952\u6b21\uff0c\u70b9\u8d5e19\u6b21\uff0c\u6536\u85cf10\u6b21\u3002\u672c\u6587\u4ecb\u7ecd\u4e86TCP\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u5173\u952e\u51fd\u6570\u53ca\u5176\u5e94\u7528\uff0c\u5305\u62eclisten()\u3001accept()\u548cconnect()\uff0c\u5e76\u8be6\u7ec6\u63cf\u8ff0\u4e86\u5982\u4f55\u5b9e\u73b0TCP\u56de\u663e\u670d\u52a1\u5668\u548cTCP\u7ffb\u8bd1\u670d\u52a1\u5668\u3002listen()\u7528\u4e8e\u5c06\u5957\u63a5\u5b57\u8bbe\u7f6e\u4e3a\u76d1\u542c\u72b6\u6001\uff0caccept()\u7528\u4e8e\u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5\uff0cconnect()\u7528\u4e8e\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u3002\u6587\u7ae0\u8fd8\u5c55\u793a\u4e86\u5982\u4f55\u901a\u8fc7\u591a\u7ebf\u7a0b\u548c\u7ebf\u7a0b\u6c60\u6280\u672f\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u5e76\u63d0\u4f9b\u4e86\u4ee3\u7801\u793a\u4f8b\u548c\u6d4b\u8bd5\u65b9\u6cd5\u3002TCP\u56de\u663e\u670d\u52a1\u5668\u901a\u8fc7\u7ebf\u7a0b\u6c60\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u800cTCP\u7ffb\u8bd1\u670d\u52a1\u5668\u5219\u901a\u8fc7\u591a\u7ebf\u7a0b\u6280\u672f\u5b9e\u73b0\u82f1\u6587\u5230\u4e2d\u6587\u7684\u7ffb\u8bd1\u529f\u80fd\u3002<\/p>\n","protected":false},"author":2,"featured_media":39534,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,44],"topic":[],"class_list":["post-39540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-43","tag-44"],"yoast_head":"\nLinux \u7684 TCP \u7f51\u7edc\u7f16\u7a0b - 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