// The remote Connections whant to start the transfer.
void MyIOCP::PackageStartFileTransfer(CIOCPBuffer *pOverlapBuff,int nSize,ClientContext *pContext)
{
#ifdef TRANSFERFILEFUNCTIONALITY
StartSendFile(pContext->m_Socket);
#endif
}
//函数：接收文件套接字
//功能：在客户端向服务器请求下载或上传之后，服务器会主动与客户机连接，该函数即处理该连接的建立
//
void CPRJ3_0613Dlg::AcceptDataSocket(SOCKET s)
{
int i;
int retval;
int addrlen;
sockaddr_in remote;
SOCKET new_sock;
char* recv_buf;
addrlen = sizeof(remote);
new_sock = accept(s, (sockaddr*)&remote, &addrlen);
if (new_sock == SOCKET_ERROR){
MessageBox(TEXT("连接意外关闭！"), TEXT("接收连接错误"), MB_OK);
return;
}
//接收到一个新的数据连接
MessageBox(TEXT("接收到一个新的数据连接！"), TEXT("服务器"), MB_OK);
recv_buf = (char *)malloc(BUF_SIZE);
retval = recv(new_sock, recv_buf, BUF_SIZE, 0);
if (retval <= 0){
//接收错误
MessageBox(TEXT("数据连接意外关闭！"), TEXT("数据连接错误"), MB_OK);
closesocket(new_sock);
return;
}
recv_buf[retval] = 0;
FilePDU *file_pdu;
file_pdu = (FilePDU*)recv_buf;
if (file_pdu->type != FILE_PDU_TYPE){
//数据连接收到错误PDU
MessageBox(TEXT("数据连接收到错误PDU！"), TEXT("数据连接连接错误"), MB_OK);
closesocket(new_sock);
return;
}
if (file_pdu->No == GET_FILELIST_START){
retval = StartRecvFileList(new_sock, file_pdu);
return;
}
for (i = 0; i < SOCK_LIST_SIZE; i++){
if (FileName[i] == file_pdu->buf){
break;
}
}
if (i == SOCK_LIST_SIZE){
//报错，未找到
MessageBox(TEXT("数据连接收到PDU中的文件名错误！"), TEXT("数据连接连接错误"), MB_OK);
closesocket(new_sock);
return;
}
sock_list[i] = new_sock;
switch (file_pdu->No){
case UP_FILE_START:
StartSendFile(new_sock, i);
break;
case DOWN_FILE_START:
StartRecvFile(new_sock, i);
break;
}
free(recv_buf);
}