去除多余的代码。

TestWizard/TestWizard/SynSerial.cpp

@@ -281,12 +281,9 @@ DWORD CSynSerial::WriteComm(IN BYTE * pWirteBuf, IN CONST INT32 nWriteSize)
 			while(!GetOverlappedResult(m_hSerialPort, &m_wrOverlapped, &dwBytesWritten, FALSE)){
 				dwError = GetLastError();
 				if ( ERROR_IO_PENDING == dwError || dwError == ERROR_IO_INCOMPLETE ) {
-					printf("等待\n");
 					continue;
 				}
 				else {
-					// 发生错误;
-					printf("发生错误：%d\n", dwError);
 					ClearCommError(m_hSerialPort, &dwError, NULL);
 					break;
 				}
@@ -309,43 +306,6 @@ DWORD CSynSerial::ReadComm(IN BYTE *pReadBuf, IN CONST DWORD& dwReadSize, WORD t
 	}
 
 	DWORD dwError = 0;
-	DWORD dwBytesRead = 0;
-	DWORD dwErrorFlags = 0;
-#if 0
-	// ReadFile前，使用ClearCommError清除错误;
-	COMSTAT ComStat = {0};
-	DWORD dwLastLen = 0;
-	ULONGLONG ulTick = GetTickCount64();	
-	// 直到有数据为止，超时3秒;
-	while (true)
-	{// cbInQue表示输入缓冲区的字节数; 
-		Sleep(timeout);
-		ClearCommError(m_hSerialPort, &dwErrorFlags, &ComStat);
-		if (GetTickCount64() - ulTick > 3000)
-			break;
-		// 防止读一次没读完，再读一次;二次长度一样表示读完;
-		if (ComStat.cbInQue != 0 && dwLastLen == ComStat.cbInQue)
-			break;
-		dwLastLen = ComStat.cbInQue;
-	}
-
-	if (ComStat.cbInQue == 0)
-	{
-		// 串口超时，无数据返回;
-		return 0;
-	}
-
-	dwBytesRead = ComStat.cbInQue;
-	if (dwReadSize < dwBytesRead)
-	{
-		dwBytesRead = dwReadSize;
-	}
-
-	if (ReadFile(m_hSerialPort, pReadBuf, dwBytesRead, &dwBytesRead, NULL))
-	{
-		return (INT)dwBytesRead;
-	}
-#else
 	DWORD dwRealRead;
 	if ( !ClearCommError(m_hSerialPort, &dwError, NULL) ) {
 		PurgeComm(m_hSerialPort, PURGE_TXABORT|PURGE_TXCLEAR);
@@ -355,13 +315,10 @@ DWORD CSynSerial::ReadComm(IN BYTE *pReadBuf, IN CONST DWORD& dwReadSize, WORD t
 		if ( GetLastError() == ERROR_IO_PENDING ) {
 			while(!GetOverlappedResult(m_hSerialPort, &m_wrOverlapped, &dwRealRead, FALSE)){
 				dwError = GetLastError();
-				printf("码值=%d, 长度=%d, 内容=%s\n", dwError, dwRealRead, pReadBuf);
+				printf("\t 码值=%d, 长度=%d, 内容=%s \n\n", dwError, dwRealRead, pReadBuf);
 			}
 		}
 	}
 
-	pReadBuf[dwRealRead] = '\0';
-#endif
-
 	return dwRealRead;
 }