多线程并发执行方法
#include <myhead.h>
#define PORT 4444
#define IP "192.168.252.200"
typedef struct
{
int newfd;//文件描述符
struct sockaddr_in cin;//客户端数据信息
}SB;
void *fun1 (void *a)
{
int newfd = ((SB *)a)->newfd;
struct sockaddr_in cin = ((SB *)a)->cin;
char buff[1024];
while(1)
{
bzero(buff,sizeof(buff));
recv(newfd,buff,sizeof(buff),0);
printf("收到%s::%d的信息\n",inet_ntoa(cin.sin_addr),ntohs(cin.sin_port));
printf("信息:%s\n",buff);
strcat(buff," 666");
send(newfd,buff,sizeof(buff),0);
}
pthread_exit(NULL);
}
int main(int argc, const char *argv[])
{
int oldfd = socket(AF_INET,SOCK_STREAM,0);
int kkk =888;
if(setsockopt(oldfd,SOL_SOCKET,SO_REUSEADDR,&kkk,sizeof(kkk)) == -1)
{
perror("setsockopt");
return -1;
}
struct sockaddr_in sin =
{
.sin_family = AF_INET,
.sin_port = htons(PORT),
.sin_addr.s_addr = inet_addr(IP)
};
if(bind(oldfd,(struct sockaddr *)&sin,sizeof(sin)) == -1)
{
perror("bind");
return -1;
}
if(listen(oldfd,10) == -1)
{
perror("listen");
return -1;
}
struct sockaddr_in cin ;
int len = sizeof(cin);
SB DSB;
while(1)
{
int newfd = accept(oldfd,(struct sockaddr *)&cin,&len);
pthread_t tid;
DSB.newfd = newfd;
DSB.cin = cin;
if(pthread_create(&tid,NULL,fun1,&DSB) != 0)
{
perror("pthread_creat");
return -1;
}
pthread_detach(tid);
}
close(oldfd);
//printf("");
return 0;
}
多进程并发执行
#include <myhead.h>
#define PORT 5555
#define ID "192.168.252.200"
void hande (int sss)
{
if(sss == SIGCHLD)
{
while(waitpid(-1,NULL,WNOHANG)!=-1);
}//回收僵尸进程
}
int main(int argc, const char *argv[])
{
if(signal(SIGCHLD,hande)==SIG_ERR)
{
perror("signal");
return -1;
}//捕捉子进程的退出信号
int oldfd = socket(AF_INET,SOCK_STREAM,0);
int kkk = 666 ;
if(setsockopt(oldfd,SOL_SOCKET,SO_REUSEADDR,&kkk,sizeof(kkk)) == -1)
{
perror("setsockopt");
return -1;
}//端口号快速复用
struct sockaddr_in sin =
{
.sin_family = AF_INET,
.sin_port = htons(PORT),
.sin_addr.s_addr = inet_addr(ID)
};
if(bind(oldfd,(struct sockaddr *)&sin,sizeof(sin))==-1)
{
perror("bind");
return -1;
}
if(listen(oldfd,10) == -1)
{
perror("listen");
return -1;
}
struct sockaddr_in cin;
int len = sizeof(cin);
while(1)
{
pid_t pit = fork();
int newfd = accept(oldfd,(struct sockaddr *)&cin,&len);
printf("接收到%s :: %d的连接\n",inet_ntoa(cin.sin_addr),ntohs(cin.sin_port));
if(pit>0)
{
close(newfd);
}
else if(pit == 0)
{
//close(oldfd);
char buff[1024];
while(1)
{
bzero(buff,sizeof(buff));
int len1 = recv(newfd,buff,sizeof(buff),0);
printf("接收到%s :: %d的消息\n",inet_ntoa(cin.sin_addr),ntohs(cin.sin_port));
printf("消息：%s\n",buff);
if(len1 == 0)
{
printf("已无连接\n");
break;
}
strcat(buff,"666");
send(newfd,buff,sizeof(buff),0);
printf("操作完成\n");
printf("-----------------------\n");
}
//close(newfd);
exit(0);
}
}
close(oldfd);
//printf("");
return 0;
}