tcp socket program puzzle

--- Quote Start ---

Can I just use the limited buffer to carry out large data transmission? For example, send several times?(I have tested, but still can't find good methods..

--- Quote End ---

you can reuse your buffers...

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=20816)</div>

--- Quote End ---

Thanks again, kind helmchen.

I have tried to reuse the buffers, for example, server send two times and client receive two times. But the result is not right..

I only found a method that is(TCP):

After send and receive once, client close the connection. And then establish another connetion and perform another transmition..

So in this way, If I need reuse my buffer ten times to finish the transmition, I have to establish and close the connection ten times..

Below is a segment of the client program to help you understand me.

----------------------------------------------------------------------

//The first connection, receive 1500 bytes

sockfd = socket(AF_INET,SOCK_STREAM,0);

bzero((struct sockaddr*)&serveraddr,sizeof(serveraddr));

serveraddr.sin_family=AF_INET;

serveraddr.sin_port=htons(5000);

inet_pton(AF_INET,argv[1],&(serveraddr.sin_addr));

if((connect(sockfd,((struct sockaddr*)&serveraddr),sizeof(serveraddr)))<0)

printf("connect error!!\n");

recvbyte=recv(sockfd,recvbuff,1500,0);

printf("recvbyte1=%d\n",recvbyte);

close(sockfd);

//The second connection,receive 1500 bytes.

sockfd = socket(AF_INET,SOCK_STREAM,0);

bzero((struct sockaddr*)&serveraddr,sizeof(serveraddr));

serveraddr.sin_family=AF_INET;

serveraddr.sin_port=htons(5000);

inet_pton(AF_INET,argv[1],&(serveraddr.sin_addr));

if((connect(sockfd,((struct sockaddr*)&serveraddr),sizeof(serveraddr)))<0)

printf("connect error!!\n");

recvbyte=recv(sockfd,recvbuff,1500,0);

printf("recvbyte2=%d\n",recvbyte);

close(sockfd);

...

---------------------------------------------------------------------

I think it&#39;s not a good way, so I am searching the good ways to reuse buffer. Do you have any good suggestions?