socket多线程并发异步通讯

/**//*
作者：雷云
email:bowaytec@yahoo.com.cn
qq：52192976
日期：2007-5-20
一下代码可供linux爱好者提供借鉴，如有不足之处请斧正

project:socket多线程异步通讯例程
*/

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<pthread.h>
#include<arpa/inet.h>
#include<sys/types.h>
#include<sys/time.h>
#include<errno.h>

#define BUFFSIZE 1024
#define PORT 1120
#define BACKLOG 5
#define MAXFD 5

void doClientRequest(int client_sock)
...{
    char buff[BUFSIZ];
    int result;
    fd_set readfd;//,writefd;
    struct timeval tv;
    tv.tv_sec=1;
    tv.tv_usec=0;    
    for(;;)
    ...{
        bzero(buff,sizeof(buff));
        FD_ZERO(&readfd);
        //FD_ZERO(&writefd);
        FD_SET(0,&readfd);
        FD_SET(client_sock,&readfd);
        if((result=select(client_sock+1,&readfd,NULL,NULL,&tv))==-1)//开始等待输入输出操作
        ...{
            perror("server select:");
            exit(-1);
        }else if(result==0)...{
            //printf("FD_ISSET(0,&readfd)=%d",FD_ISSET(0,&readfd));
            //printf("FD_ISSET(client_sock,&readfd)=%d",FD_ISSET(client_sock,&readfd));
            //printf("have no message comming ");
        //    sleep(3);
            continue;
        }else...{
            if(FD_ISSET(0,&readfd))
            ...{
                /**//*用户按键事件响应*/
                fgets(buff,sizeof(buff),stdin);
                if(!strncasecmp(buff,"quit",4))
                ...{
                    printf("%d client customer exit chat ",client_sock);
                    break;
                }
                result=send(client_sock,buff,strlen(buff)+1,0);
                if(result>0)
                ...{
                    printf("send %d byte %s ",result,buff);
                    }
                else...{
                    printf("消息'%s'发送失败！错误代码是%d，错误信息是'%s' ",buff, errno, strerror(errno));
                    break;
                    }                
            }
            if(FD_ISSET(client_sock,&readfd))
            ...{
                /**//*客户端接收数据事件*/
                result=recv(client_sock,buff,BUFSIZ,0);
                if(result>0)
                ...{
                    printf("accepte message success:%s ,counter %d byte ",buff,result);
                }else...{
                    if(result<0)
                    ...{
                        printf("message recive failse ");
                    }else...{
                        printf("%d client customer exit ",client_sock);
                    }
                    break;
                }
            }
        }
            
    }
}
void doClientThread(void *pParam)
...{
  int clientSocket=(int)pParam;
  doClientRequest(clientSocket);
  close(clientSocket);
  printf("%d >client socket close ok  ",clientSocket);
}

int main(void)
...{
        int server_sock,client_sock,result,len;
        struct sockaddr_in serveraddr;
        pthread_t pt;

        if((server_sock=socket(AF_INET,SOCK_STREAM,0))<0)
        ...{
            perror("server socket:");
    exit(-1);
        }
   puts("server socket is OK!");
   bzero(&serveraddr,sizeof(serveraddr));
   serveraddr.sin_family=AF_INET;
   serveraddr.sin_addr.s_addr=htonl(INADDR_ANY);
   serveraddr.sin_port=htons(PORT);
        len=sizeof(serveraddr);
   if((result=bind(server_sock,(struct sockaddr*)&serveraddr,sizeof(serveraddr)))<0)
        ...{
            perror("server bind:");
            exit(-1);
        }
   puts("server bind is OK!");

   if((result=listen(server_sock,BACKLOG))<0)
        ...{
            perror("server listen:");
            exit(-1);
        }
        puts("server listen is OK!");
        
        for(;;)
        ...{
            if((client_sock=accept(server_sock,(struct sockaddr*)&serveraddr,(socklen_t*)&len))==0)
            ...{
                perror("server accept:");
                exit(-1);
            }
            
            if((result=pthread_create(&pt,NULL,doClientThread,(void *)client_sock))!=0)
            ...{
                perror("pthread create:");
                exit(-1);
            }
            printf("%d create thread ok ",client_sock);
        }
        exit(0);
}