串口调试助手 大文件传输

LONG CSCOMMDlg::OnCommunication(WPARAM ch, LPARAM port) { g_ucRecvBuf[g_ulRecvLen++]=UCHAR(ch); if(g_ulRecvLen>=51) { memcpy(&g_ADData,g_ucRecvBuf,51); //return 1; } // return 1; if(g_ulRecvLen<4) return 1; //1表示接收数据长度不够 ULONG ulCheckSum =0; CMDHEADER header; header = *((CMDHEADER *)g_ucRecvBuf); //如果不相等，将Buffer中的每个数据前移动一个位置 if(CMD_SYN_WORD!= header.ulSyncWord) { memmove(g_ucRecvBuf,g_ucRecvBuf+1,3); return 2;//2表示没有接收到同步字 } if(g_ulRecvLen<sizeof(CMDHEADER)) return 3; //3表示没有接收到帧头 CString strTemp; CString strFileName; char szFilePath[MAX_PATH]={0}; switch(header.cmdType) { case CMD_FILEINFO://文件信息(包括名称，大小)命令 if(g_ulRecvLen<header.ulPackLen) return 4; //没有收到完整的文件信息命令 if(g_ulRecvLen==(sizeof(CMDHEADER)+header.ulPackLen)) { FILEINFO fileInfo; fileInfo=*((FILEINFO *)g_ucRecvBuf); ulCheckSum = CheckSum(fileInfo.ucFileName,fileInfo.ulFileNameLen) +fileInfo.lFileLen; if(ulCheckSum!=fileInfo.ulCheckSum) { fileInfo.header.cmdState = CMD_STATE_ERROR; g_lErrorPackNum++; //strTemp.Format("%d",g_lErrorPackNum); } else { fileInfo.header.cmdState = CMD_STATE_OK; //增加接收文件的计时功能 memset(&g_tRecvBegin,0,sizeof(time_t)); time(&g_tRecvBegin); m_bRecvFileIsBegin = TRUE; } m_nCurFileRecvLen=0; m_nFileRecvLen = fileInfo.lFileLen; //文件长度 fileInfo.header.cmdType =CMD_FILEINFO_RESP; m_Port.WriteToPort((char*)&fileInfo.header,sizeof(CMDHEADER)); memcpy(szFilePath,fileInfo.ucFileName,fileInfo.ulFileNameLen); strFileName.Format("%s",szFilePath); m_strCurFilePath= m_strSaveFileDir+strFileName; if(NULL!=g_file.m_hFile) g_file.Close(); g_file.Open(m_strCurFilePath,CFile::modeCreate|CFile::modeReadWrite); TRACE("1,RECV FILEINFO CMD,File Name = %s,g_ulRecvLen = %d\n", fileInfo.ucFileName,g_ulRecvLen); // if(m_nFileRecvLen<1024*1024) // { // strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0); // } // else if(m_nFileRecvLen>1024*1024) // { // strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0/1024.0); // } // //显示"传输总耗时" // const ULONG ulFrameBytes = g_nBaud/10 -(sizeof(CMDHEADER)+4); // long lComm_TimeSum = m_nFileRecvLen/ulFrameBytes; // //传输总耗时间,单位：秒 // // WORD wHour =0; // WORD wMinute =0; // WORD wSecond =0; // // wSecond = lComm_TimeSum%60; // wMinute = lComm_TimeSum/60%60; // wHour = lComm_TimeSum/60/60%60; // // if((0==wSecond)&&(0==wMinute)&&(0==wHour)) // wSecond =1; // strTemp.Format("%02d:%02d:%02d",wHour,wMinute,wSecond); g_ulRecvLen =0; } break; case CMD_FILEDATA: //发送文件中数据的命令 if(g_ulRecvLen<header.ulPackLen) return 5;//没有收到完整的文件数据帧命令 if(g_ulRecvLen == (sizeof(CMDHEADER)+header.ulPackLen)) { FILEDATA fileData; fileData = *((FILEDATA *)g_ucRecvBuf); fileData.pucBuf = new UCHAR[fileData.header.ulPackLen-4]; memset(fileData.pucBuf,0,fileData.header.ulPackLen-4); memcpy(fileData.pucBuf,g_ucRecvBuf+sizeof(CMDHEADER)+4,fileData.header.ulPackLen-4); ulCheckSum=CheckSum(fileData.pucBuf, fileData.header.ulPackLen-4); if(ulCheckSum!= fileData.ulCheckSum) { fileData.header.cmdState =CMD_STATE_ERROR; g_lErrorPackNum++; strTemp.Format("%d",g_lErrorPackNum); //m_editErrorFrames } else fileData.header.cmdState =CMD_STATE_OK; fileData.header.cmdType = CMD_FILEDATA_RESP; g_file.Write(fileData.pucBuf,fileData.header.ulPackLen-4); //fileData.header.ulPackLen-4, DELETE_ARRAYOBJS(fileData.pucBuf); g_ulRecvLen=0; m_Port.WriteToPort((char*)&fileData.header,sizeof(CMDHEADER)); m_nCurFileRecvLen+=fileData.header.ulPackLen-4; strTemp.Format("%0.2f",(float)m_nCurFileRecvLen/(float)m_nFileRecvLen*100); strTemp+=_T("%"); float step = (float)m_nCurFileRecvLen/(float)m_nFileRecvLen*100; // m_progress.SetPos((int)step); /*if(m_nFileRecvLen<1024*1024) { strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0); } else if(m_nFileRecvLen>1024*1024) { strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0/1024.0); }*/ } break; case CMD_FILEEOF://文件发送结束命令 if(g_ulRecvLen<header.ulPackLen) return 6;//没有发到完整的文件发送结束命令 if(g_ulRecvLen == (sizeof(CMDHEADER)+header.ulPackLen)) { FILEEOF fileEOF; fileEOF= *((FILEEOF *)g_ucRecvBuf); fileEOF.pucBuf = new UCHAR[fileEOF.header.ulPackLen-4]; memset(fileEOF.pucBuf,0,fileEOF.header.ulPackLen-4); memcpy(fileEOF.pucBuf,g_ucRecvBuf+sizeof(CMDHEADER)+4,fileEOF.header.ulPackLen-4); ulCheckSum = CheckSum(fileEOF.pucBuf,fileEOF.header.ulPackLen-4); if(ulCheckSum!=fileEOF.ulCheckSum) { fileEOF.header.cmdState=CMD_STATE_ERROR; g_lErrorPackNum++; strTemp.Format("%d",g_lErrorPackNum); } else { fileEOF.header.cmdState =CMD_STATE_OK; m_bRecvFileIsBegin = FALSE;//接收文件完成，停止显示时间 } fileEOF.header.cmdType =CMD_FILEEOF_RESP; g_file.Write(fileEOF.pucBuf,fileEOF.header.ulPackLen-4); g_file.Close(); //解决大文件发送时，第二个文件打开错误原因是没“置0”原因 g_file.m_hFile=NULL; DELETE_ARRAYOBJS(fileEOF.pucBuf); g_ulRecvLen=0; m_Port.WriteToPort((char*)&fileEOF.header,sizeof(CMDHEADER)); m_nCurFileRecvLen += fileEOF.header.ulPackLen-4; if(m_nFileRecvLen<=0) { strTemp=_T("0%"); } else { strTemp.Format("%0.2f", (float)m_nCurFileRecvLen/(float)m_nFileRecvLen*100); strTemp+=_T("%"); } if(m_nFileRecvLen<1024*1024) { strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0); } else if(m_nFileRecvLen>1024*1024) { strTemp.Format("%0.3fKB",m_nFileRecvLen/1024.0/1024.0); } } break; //=================处理接收端的响应信息 begin 信息头================= case CMD_FILEINFO_RESP://发送文件信息命令后，发到接收端的响应信息 if(CMD_STATE_OK==header.cmdState) { m_bFileInfoIsOK = TRUE; g_ulRecvLen = 0; g_bIsRecvData = TRUE; } else if(CMD_STATE_ERROR==header.cmdState) { m_bFileInfoIsOK = FALSE; g_ulRecvLen=0; SendFileInfo(); } break; //=================处理接收端的响应信息 文件数据================= case CMD_FILEDATA_RESP://发送文件体命令后，发到接收端的响应信息 if(CMD_STATE_OK==header.cmdState) m_bFileDataIsOK = TRUE; else if(CMD_STATE_ERROR==header.cmdState) m_bFileDataIsOK = FALSE; g_ulRecvLen =0; g_bIsRecvData = TRUE; break; //=================处理接收端的响应信息 文件结尾================= case CMD_FILEEOF_RESP://发送文件尾命令后，发到接收端的响应信息 if(CMD_STATE_OK==header.cmdState) { m_bFileEOFIsOK = TRUE; g_bFileSendEnd = TRUE; } else if (CMD_STATE_ERROR == header.cmdState) { m_bFileEOFIsOK = FALSE; m_bSendFileIsBegin = FALSE; } g_ulRecvLen = 0; g_bIsRecvData = TRUE; break; //====================默认处理================= default:break; } //设置信号量 SetEvent(m_hRecvMsgEvent); return 0; //返回0表示正确 }