{"id":16938,"date":"2025-04-18T23:23:18","date_gmt":"2025-04-18T15:23:18","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/16938.html"},"modified":"2025-04-18T23:23:18","modified_gmt":"2025-04-18T15:23:18","slug":"%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e4%b9%8b%e5%ae%a2%e6%88%b7%e7%ab%af%e9%80%9a%e8%bf%87%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%8f%a6%e5%a4%96%e4%b8%80%e4%b8%aa%e5%ae%a2%e6%88%b7%e7%ab%af%e4%ba%a4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/16938.html","title":{"rendered":"\u7f51\u7edc\u7f16\u7a0b\u4e4b\u5ba2\u6237\u7aef\u901a\u8fc7\u670d\u52a1\u5668\u4e0e\u53e6\u5916\u4e00\u4e2a\u5ba2\u6237\u7aef\u4ea4\u6d41"},"content":{"rendered":"

\u670d\u52a1\u5668\u4f7f\u7528select\u6a21\u578b\u642d\u5efa，\u5ba2\u6237\u7aef1\u4f7f\u7528\u7ebf\u7a0b\u642d\u5efa，\u5ba2\u6237\u7aef2\u4f7f\u7528poll\u6a21\u578b\u642d\u5efa，<\/p>\n

\u4f7f\u7528\u65f6\u9700\u8981\u5148\u8fd0\u884c\u670d\u52a1\u5668，\u5177\u4f53\u7f16\u8bd1\u53ef\u770b\u6211\u6700\u540e\u7684\u56fe\u7247<\/p>\n<\/p>\n

\u00a0head.h\u5934\u6587\u4ef6<\/h2>\n

#ifndef __HEAD_H_ #define __HEAD_H_<\/p>\n

#include <stdio.h> #include <string.h> #include <stdlib.h> #include <time.h> #include <unistd.h> #include <sys\/types.h> #include <sys\/stat.h> #include <fcntl.h> #include <sys\/stat.h> #include <pwd.h> #include <dirent.h> #include <wait.h> #include <errno.h> #include <pthread.h> #include <semaphore.h> #include <sys\/ipc.h> #include <sys\/msg.h> #include <sys\/shm.h> #include <sys\/sem.h> #include <sys\/socket.h> #include <netinet\/in.h> #include <arpa\/inet.h> \u00a0#include <poll.h> #include <signal.h> #define PRINTF_ERROR(a) {perror(a);return -1;} #endif<\/p>\n<\/p>\n

\u00a0\u670d\u52a1\u5668\u642d\u5efa\u4ee3\u7801<\/h2>\n

server_select.c<\/h3>\n

#include <head.h> enum Type{ \u00a0\u00a0\u00a0 TYPE_LOGIN, \u00a0\u00a0\u00a0 TYPE_REDIST }; typedef struct Pack{ \/\/\u534f\u8bae\u5305 \u00a0\u00a0\u00a0 int packsize; \u00a0\u00a0\u00a0 enum Type type; \u00a0\u00a0\u00a0 char buf[4096]; \u00a0\u00a0\u00a0 int used;<\/p>\n

}pack_t;\u00a0 \u00a0 void freeList(char** list){ \u00a0\u00a0\u00a0 for(int i=0;list[i]!=NULL;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 free(list[i]); \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 free(list); }<\/p>\n

char** analysis(pack_t pack){\u00a0 \u00a0 \u00a0\/\/\u89e3\u6790\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u534f\u8bae\u5305 \u00a0\u00a0\u00a0 char* buf=pack.buf; \u00a0\u00a0\u00a0 int readed_size=0; \u00a0\u00a0\u00a0 char** list = calloc(1,80); \u00a0\u00a0\u00a0 int i=0;\/\/ \u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 short size = *(short*)(buf+readed_size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(size==0) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 break; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=2; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char temp[size+1]; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memset(temp,0,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memcpy(temp,buf+readed_size,size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=size;<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 list[i]=calloc(1,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 strcpy(list[i],temp); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 i++; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 return list;<\/p>\n

} void insert_client(int* arr,int client,int* len){ \/\/\u5c06\u5ba2\u6237\u7aef\u7684\u63cf\u8ff0\u7b26\u653e\u5165\u6570\u7ec4 \u00a0\u00a0\u00a0 arr[*len]=client; \u00a0\u00a0\u00a0 (*len)++; } void remove_client(int* arr,int client,int* len){ \u00a0\u00a0\u00a0 int i=0,j=0; \u00a0\u00a0\u00a0 for(i=0;i<*len;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(arr[i]==client) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 break; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 if(i==*len) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return; \u00a0\u00a0\u00a0 for(j=i;j<*len;j++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 arr[j]=arr[j+1]; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 arr[j]=0; \u00a0\u00a0\u00a0 (*len–); } int main(int argc, const char *argv[]) { \u00a0\u00a0\u00a0 if(argc<2){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u8bf7\u8f93\u5165\u7aef\u53e3\u53f7:\\\\n"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 1; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 int port = atoi(argv[1]); \u00a0\u00a0\u00a0 int server = socket(AF_INET,SOCK_STREAM,0); \u00a0\u00a0\u00a0 struct sockaddr_in addr = {0};<\/p>\n

\u00a0\u00a0\u00a0 addr.sin_family = AF_INET; \u00a0\u00a0\u00a0 addr.sin_port = htons(port); \u00a0\u00a0\u00a0 addr.sin_addr.s_addr = inet_addr("0.0.0.0"); \u00a0\u00a0\u00a0 if(bind(server,(struct sockaddr*)&addr,sizeof(addr))==-1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 perror("bind"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return -1; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 listen(server,50);<\/p>\n

\u00a0\u00a0\u00a0 int\u00a0 client_arr[64]={0};\/\/\u5b58\u653e\u6240\u6709\u5ba2\u6237\u7aef\u5957\u63a5\u5b57\u7684\u6570\u7ec4 \u00a0\u00a0\u00a0 int arr_len=0;\/\/\u8bb0\u5f55\u6570\u7ec4\u7684\u957f\u5ea6 \u00a0\u00a0\u00a0 fd_set readfds;\/\/\u521b\u5efa\u4e00\u4e2aselect\u7684\u76d1\u542c\u5217\u8868 \u00a0\u00a0\u00a0 FD_ZERO(&readfds);\/\/\u521d\u59cb\u5316\u76d1\u542c\u5217\u8868 \u00a0\u00a0\u00a0 FD_SET(server,&readfds);\/\/\u5c06\u670d\u52a1\u5668\u5957\u63a5\u5b57\u653e\u5165\u76d1\u542c\u5217\u8868\u4e2d \u00a0\u00a0\u00a0 FD_SET(STDIN_FILENO,&readfds);\/\/\u5c06\u6807\u51c6\u8f93\u5165\u6d41\u653e\u5165\u76d1\u542c\u5217\u8868\u4e2d<\/p>\n<\/p>\n

\u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 fd_set temp=readfds; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 select(1024,&temp,0,0,0); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(FD_ISSET(0,&temp)){\u00a0 \u8f93\u5165\u6d41\u6fc0\u6d3b \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char buf[1024]=""; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 scanf("%s",buf); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 getchar(); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u952e\u76d8\u8f93\u5165\u6570\u636e:%s\\\\n",buf); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(FD_ISSET(server,&temp)){\u00a0 \u670d\u52a1\u5668\u6fc0\u6d3b \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int client=accept(server,0,0); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u6709\u5ba2\u6237\u7aef\u94fe\u63a5\\\\n"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FD_SET(client,&readfds); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 insert_client(client_arr,client,&arr_len); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i=0;i<arr_len;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int client = client_arr[i]; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(FD_ISSET(client,&temp)){ \/\/\u5ba2\u6237\u7aef\u6fc0\u6d3b<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack_t pack={0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int size=0; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int res=read(client,&size,4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(res ==0){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u5ba2\u6237\u7aef\u65ad\u5f00\u94fe\u63a5\\\\n"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FD_CLR(client,&readfds); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 remove_client(client_arr,client,&arr_len); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 close(client); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 break; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack.packsize=size; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 read(client,(char*)&pack+4,size-4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char** list=analysis(pack); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int j=0;j<arr_len;j++){\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(client_arr[i]!=client_arr[j]){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(write(client_arr[j],&pack,size)<=0) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 PRINTF_ERROR("write error"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("%s\\\\n",list[0]); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 freeList(list);<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 return 0; }<\/p>\n

\u00a0\u5ba2\u6237\u7aef1<\/h2>\n

client1.c<\/h3>\n

#include <head.h> #include <pthread.h> enum Type{ \u00a0\u00a0\u00a0 TYPE_REGIST, \u00a0\u00a0\u00a0 TYPE_LOGIN };<\/p>\n

typedef struct Pack{ \u00a0\u00a0\u00a0 int packsize; \u00a0\u00a0\u00a0 enum Type type; \u00a0\u00a0\u00a0 char buf[4096]; \u00a0\u00a0\u00a0 int used; }pack_t;<\/p>\n

void append(pack_t* pack,const char* str){ \u00a0\u00a0\u00a0 char* buf=pack->buf; \u00a0\u00a0\u00a0 short size=strlen(str); \u00a0\u00a0\u00a0 *(short*)(buf+pack->used)=size; \u00a0\u00a0\u00a0 pack->used+=2; \u00a0\u00a0\u00a0 memcpy(buf+pack->used,str,size); \u00a0\u00a0\u00a0 pack->used+=size; \u00a0\u00a0\u00a0 pack->packsize=pack->used+8; } void freeList(char** list){ \u00a0\u00a0\u00a0 for(int i=0;list[i]!=NULL;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 free(list[i]); \u00a0\u00a0\u00a0 }\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 free(list); }<\/p>\n

char** analysis(pack_t pack){ \u00a0\u00a0\u00a0 char* buf=pack.buf; \u00a0\u00a0\u00a0 int readed_size=0; \u00a0\u00a0\u00a0 char** list = calloc(1,80); \u00a0\u00a0\u00a0 int i=0;\/\/ \u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 short size = *(short*)(buf+readed_size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(size==0) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 break; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=2; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char temp[size+1]; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memset(temp,0,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memcpy(temp,buf+readed_size,size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=size;<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 list[i]=calloc(1,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 strcpy(list[i],temp); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 i++; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 return list;<\/p>\n

}<\/p>\n

void* Write(void* arg){ \u00a0\u00a0\u00a0 int client =*(int *)arg; \u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char str[20]=""; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack_t pack={0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack.type=TYPE_REGIST; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 scanf("%19s",str); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 getchar(); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 append(&pack,str); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 write(client,&pack,pack.packsize); \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 pthread_exit(NULL);<\/p>\n

} void* Read(void* arg){ \u00a0\u00a0\u00a0 int client =*(int *)arg; \u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack_t pack1={0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int size=0; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 read(client,&size,4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 read(client,(char*)&pack1+4,size-4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char** list=analysis(pack1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u5ba2\u6237\u7aef1:%s\\\\n",list[0]); \u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 freeList(list);<\/p>\n

\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 pthread_exit(NULL); } int main(int argc, const char *argv[]) { \u00a0\u00a0\u00a0 if(argc<2){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u8bf7\u8f93\u5165\u7aef\u53e3\u53f7\\\\n"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return -1; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 int port=atoi(argv[1]); \u00a0\u00a0\u00a0 int client=socket(AF_INET,SOCK_STREAM,0);<\/p>\n

\u00a0\u00a0\u00a0 struct sockaddr_in addr={0}; \u00a0\u00a0\u00a0 addr.sin_family=AF_INET; \u00a0\u00a0\u00a0 addr.sin_port=htons(port); \u00a0\u00a0\u00a0 addr.sin_addr.s_addr=inet_addr("0.0.0.0"); \u00a0\u00a0\u00a0 if(connect(client,(struct sockaddr*)&addr,sizeof(addr))==-1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 PRINTF_ERROR("bind error"); \u00a0\u00a0\u00a0 }<\/p>\n<\/p>\n

\u00a0\u00a0\u00a0 pthread_t tid1,tid2; \u00a0\u00a0\u00a0 pthread_create(&tid1,NULL,Write,&client); \u00a0\u00a0\u00a0 pthread_create(&tid2,NULL,Read,&client); \u00a0\u00a0\u00a0 pthread_join(tid1,NULL); \u00a0\u00a0\u00a0 pthread_join(tid2,NULL);<\/p>\n<\/p>\n

\u00a0\u00a0\u00a0 return 0; }<\/p>\n

\u5ba2\u6237\u7aef2<\/h2>\n

client2.c<\/h3>\n

#include <head.h> enum Type{ \u00a0\u00a0\u00a0 TYPE_LOGIN, \u00a0\u00a0\u00a0 TYPE_REDIST }; typedef struct Pack{ \u00a0\u00a0\u00a0 int packsize; \u00a0\u00a0\u00a0 enum Type type; \u00a0\u00a0\u00a0 char buf[4096]; \u00a0\u00a0\u00a0 int used;<\/p>\n

}pack_t; void append(pack_t* pack,const char* str){ \u00a0\u00a0\u00a0 char* buf = pack->buf; \u00a0\u00a0\u00a0 short size = strlen(str); \u00a0\u00a0\u00a0 *(short*)(buf+pack->used) = size; \u00a0\u00a0\u00a0 pack->used +=2; \u00a0\u00a0\u00a0 memcpy(buf+pack->used,str,size); \u00a0\u00a0\u00a0 pack->used+=size; \u00a0\u00a0\u00a0 pack->packsize=pack->used+8; } \/\/ \u8be5\u51fd\u6570\u529f\u80fd\u4e3a：\u5c06client\u5b58\u5165\u6570\u7ec4arr\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u4e0b\u6807\u4f4d\u7f6e\u4e0a，\u5b58\u5b8c\u4e4b\u540e，arr\u6570\u7ec4\u7684\u957f\u5ea6\u8bb0\u5f97\u81ea\u589e void insert_client(struct pollfd* arr,struct pollfd client,int* len){ \u00a0\u00a0\u00a0 arr[*len] = client; \u00a0\u00a0\u00a0 (*len)++; }<\/p>\n

\/\/ \u5c06client\u4ece\u6570\u7ec4arr\u4e2d\u79fb\u9664，\u79fb\u9664\u540e\u8bb0\u5f97\u6570\u7ec4\u957f\u5ea6-1 void remove_client(struct pollfd* arr,int client,int* len){ \u00a0\u00a0\u00a0 int i = 0,j = 0; \u00a0\u00a0\u00a0 for(i=0;i<*len;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(arr[i].fd == client){break;} \u00a0\u00a0\u00a0 }\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 if(i == *len){return;} \u00a0\u00a0\u00a0 for(j=i;j<*len-1;j++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 arr[j] = arr[j+1]; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 \/\/arr[j] = 0; \u00a0\u00a0\u00a0 (*len)–; } void freeList(char** list){ \u00a0\u00a0\u00a0 for(int i=0;list[i]!=NULL;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 free(list[i]); \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 free(list); }<\/p>\n

char** analysis(pack_t pack){ \u00a0\u00a0\u00a0 char* buf=pack.buf; \u00a0\u00a0\u00a0 int readed_size=0; \u00a0\u00a0\u00a0 char** list = calloc(1,80); \u00a0\u00a0\u00a0 int i=0;\/\/ \u00a0\u00a0\u00a0 while(1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 short size = *(short*)(buf+readed_size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(size==0) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 break; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=2; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char temp[size+1]; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memset(temp,0,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 memcpy(temp,buf+readed_size,size); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 readed_size+=size;<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 list[i]=calloc(1,size+1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 strcpy(list[i],temp); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 i++; \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 return list;<\/p>\n

}<\/p>\n

int main(int argc, const char *argv[]) { \u00a0\u00a0\u00a0 if(argc<2){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u8bf7\u8f93\u5165\u7aef\u53e3\u53f7:\\\\n"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 1;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 int port = atoi(argv[1]);<\/p>\n

\u00a0\u00a0\u00a0 int client = socket(AF_INET,SOCK_STREAM,0); \u00a0\u00a0\u00a0 struct sockaddr_in addr = {0}; \u00a0\u00a0\u00a0 addr.sin_family = AF_INET; \u00a0\u00a0\u00a0 addr.sin_port = htons(port); \u00a0\u00a0\u00a0 addr.sin_addr.s_addr = inet_addr("0.0.0.0"); \u00a0\u00a0\u00a0 if(connect(client,(struct sockaddr*)&addr,sizeof(addr))==-1){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 perror("connect"); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return -1; \u00a0\u00a0\u00a0 }<\/p>\n

\u00a0\u00a0\u00a0 struct pollfd list[50]={0}; \u00a0\u00a0\u00a0 int list_len=0; \u00a0\u00a0\u00a0 struct pollfd client_fd={fd:client,events:POLLIN,revents:0}; \u00a0\u00a0\u00a0 struct pollfd stdin_fd={fd:0,events:POLLIN,revents:0};<\/p>\n

\u00a0\u00a0\u00a0 insert_client(list,client_fd,&list_len);<\/p>\n

\u00a0\u00a0\u00a0 insert_client(list,stdin_fd,&list_len);<\/p>\n

\u00a0\u00a0\u00a0 while(1){<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 poll(list,list_len,-1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int i=0; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(i=0;i<list_len;i++){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(list[i].revents==0){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 continue; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int fd=list[i].fd; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(fd==0){ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char str[20]=""; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack_t pack = {0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack.type=TYPE_REDIST; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 scanf("%19s",str); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 getchar(); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 append(&pack,str); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 write(client,&pack,pack.packsize); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{ \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pack_t pack1={0}; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int size=0; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 read(client,&size,4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 read(client,(char*)&pack1+4,size-4); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char** list=analysis(pack1); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf("\u5ba2\u6237\u7aef2：%s\\\\n",list[0]); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 freeList(list);<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0\u00a0\u00a0 }<\/p>\n

\u00a0\u00a0\u00a0 return 0; }<\/p>\n

\u00a0\u7ed3\u679c<\/h2>\n

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