Linux以下基于TCP多线程聊天室（client）

不怎么会弄这个博客的排版，就直接将代码附上：

主要是使用多线程去等待接受数据和发送数据。以下是client的代码：

tcpsed.h文件

#ifndef RTPSED_H
#define RTPSED_H

#define BUFFSIZE 512

int runcond;

int socketfd;

typedef struct TCP_send_arg
{
    char *tcpserver_addr;
    int tcp_port;
}TCP_send_arg_t;

void tcp_stophandler(int signum);

void *tcppacketsend(void *arg);

void quit(int signum);

#endif

tcpsed.c文件

#include "tcpsed.h"

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <arpa/inet.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <pthread.h>

int socketfd;

void tcp_stophandler(int signum)
{
    runcond = 0;
}

void quit(int signum)
{
    close(socketfd);
    printf("Bye~Bye!
");
    pthread_exit(NULL);
}

void *pth_read(void *arg)
{
    int runcond = 1;
    int result;
    char pth_buf[BUFFSIZE];

    while(runcond)
    {
        if(0 > (result = read(socketfd,pth_buf,BUFFSIZE - 1)))
        {
            fprintf(stderr,"Read Error:%s
",strerror(errno));
        }
        pth_buf[result] = '';
        printf("%s
",pth_buf);
    }
    pthread_exit(NULL);
}

void *tcppacketsend(void *arg)
{
    runcond = 1;
    struct sockaddr_in server_addr;
    char buf[BUFFSIZE] = {0};
    int connfd;
    pthread_t tid;
	
    TCP_send_arg_t *send_arg = (TCP_send_arg_t *)arg;

    memset(&server_addr,0,sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons((*send_arg).tcp_port);
    server_addr.sin_addr.s_addr = inet_addr((*send_arg).tcpserver_addr);
	
    if(-1 == (socketfd = socket(AF_INET,SOCK_STREAM,0)))
    {
        fprintf(stderr,"Socket Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    if(-1 == (connfd = connect(socketfd,(struct sockaddr*)&server_addr,sizeof(server_addr))))
    {
        fprintf(stderr,"Connect Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    printf("You can use "Ctrl + D" to quit.
");
    if(SIG_ERR == signal(SIGUSR1,quit))
    {
        fprintf(stderr,"Can't set SIGUSR1 signal action!
");
        pthread_exit(NULL);
    }

    if(0 != pthread_create(&tid,NULL,(void *)pth_read,(void *)buf))
    {
        fprintf(stderr,"Create pthread Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }

    while(NULL != (fgets(buf,BUFFSIZE,stdin)))
    {
        write(socketfd,buf,strlen(buf) - 1);
    }

    pthread_cancel(tid);
	
    pthread_exit(NULL);
}

client.c文件

#include "tcpsed.h"

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <arpa/inet.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <pthread.h>

int socketfd;

void tcp_stophandler(int signum)
{
    runcond = 0;
}

void quit(int signum)
{
    close(socketfd);
    printf("Bye~Bye!
");
    pthread_exit(NULL);
}

void *pth_read(void *arg)
{
    int runcond = 1;
    int result;
    char pth_buf[BUFFSIZE];

    while(runcond)
    {
        if(0 > (result = read(socketfd,pth_buf,BUFFSIZE - 1)))
        {
            fprintf(stderr,"Read Error:%s
",strerror(errno));
        }
        pth_buf[result] = '';
        printf("%s
",pth_buf);
    }
    pthread_exit(NULL);
}

void *tcppacketsend(void *arg)
{
    runcond = 1;
    struct sockaddr_in server_addr;
    char buf[BUFFSIZE] = {0};
    int connfd;
    pthread_t tid;
	
    TCP_send_arg_t *send_arg = (TCP_send_arg_t *)arg;

    memset(&server_addr,0,sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons((*send_arg).tcp_port);
    server_addr.sin_addr.s_addr = inet_addr((*send_arg).tcpserver_addr);
	
    if(-1 == (socketfd = socket(AF_INET,SOCK_STREAM,0)))
    {
        fprintf(stderr,"Socket Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    if(-1 == (connfd = connect(socketfd,(struct sockaddr*)&server_addr,sizeof(server_addr))))
    {
        fprintf(stderr,"Connect Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    printf("You can use "Ctrl + D" to quit.
");
    if(SIG_ERR == signal(SIGUSR1,quit))
    {
        fprintf(stderr,"Can't set SIGUSR1 signal action!
");
        pthread_exit(NULL);
    }

    if(0 != pthread_create(&tid,NULL,(void *)pth_read,(void *)buf))
    {
        fprintf(stderr,"Create pthread Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }

    while(NULL != (fgets(buf,BUFFSIZE,stdin)))
    {
        write(socketfd,buf,strlen(buf) - 1);
    }

    pthread_cancel(tid);
	
    pthread_exit(NULL);
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <errno.h>

#include "tcpsed.h"

#define PORT 8888
#define IP "192.168.1.220"

TCP_send_arg_t send_arg;

int main(int argc,char *argv[])
{
    pthread_t tid;
    void *tret;

    send_arg.tcp_port = PORT;
    send_arg.tcpserver_addr = IP;

    if(0 != pthread_create(&tid,NULL,(void *)tcppacketsend,(void *)&send_arg))
    {
        fprintf(stderr,"Create pthread error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
    printf("OK!
");
    if(0 != pthread_join(tid,&tret))
    {
        fprintf(stderr,"Join thread error:%s
",strerror(errno));
        pthread_exit(NULL);
    }

    return 0;
}

#include "tcpsed.h"

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <arpa/inet.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <pthread.h>

int socketfd;

void tcp_stophandler(int signum)
{
    runcond = 0;
}

void quit(int signum)
{
    close(socketfd);
    printf("Bye~Bye!
");
    pthread_exit(NULL);
}

void *pth_read(void *arg)
{
    int runcond = 1;
    int result;
    char pth_buf[BUFFSIZE];

    while(runcond)
    {
        if(0 > (result = read(socketfd,pth_buf,BUFFSIZE - 1)))
        {
            fprintf(stderr,"Read Error:%s
",strerror(errno));
        }
        pth_buf[result] = '';
        printf("%s
",pth_buf);
    }
    pthread_exit(NULL);
}

void *tcppacketsend(void *arg)
{
    runcond = 1;
    struct sockaddr_in server_addr;
    char buf[BUFFSIZE] = {0};
    int connfd;
    pthread_t tid;
	
    TCP_send_arg_t *send_arg = (TCP_send_arg_t *)arg;

    memset(&server_addr,0,sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons((*send_arg).tcp_port);
    server_addr.sin_addr.s_addr = inet_addr((*send_arg).tcpserver_addr);
	
    if(-1 == (socketfd = socket(AF_INET,SOCK_STREAM,0)))
    {
        fprintf(stderr,"Socket Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    if(-1 == (connfd = connect(socketfd,(struct sockaddr*)&server_addr,sizeof(server_addr))))
    {
        fprintf(stderr,"Connect Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }
	
    printf("You can use "Ctrl + D" to quit.
");
    if(SIG_ERR == signal(SIGUSR1,quit))
    {
        fprintf(stderr,"Can't set SIGUSR1 signal action!
");
        pthread_exit(NULL);
    }

    if(0 != pthread_create(&tid,NULL,(void *)pth_read,(void *)buf))
    {
        fprintf(stderr,"Create pthread Error:%s
",strerror(errno));
        pthread_exit(NULL);
    }

    while(NULL != (fgets(buf,BUFFSIZE,stdin)))
    {
        write(socketfd,buf,strlen(buf) - 1);
    }

    pthread_cancel(tid);
	
    pthread_exit(NULL);
}

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原文地址：https://www.cnblogs.com/lxjshuju/p/7025849.html