Passing a unique structure through the functions of customer/ServerTCPRead/write and making sure that all data is transferred

I use the CVI TCP media kit at my request and I am curious about the following code:

ClientTCPRead

char * buffer;
int messageSize;
int bytesToRead;
int
bytesRead;

/ * Find messageSize and allocate a buffer properly... * /.

bytesToRead = messageSize;

While (bytesToRead > 0)

{

bytesRead = ClientTCPRead (connection handle,
(& buffer [messageSize - bytesToRead], bytesToRead, 0);

bytesToRead = bytesRead;

}

OK, this works if you tank elements of the array, but what happens if you pass a structure of arbitrary size?  If you read/write the bytes read or written and that you get all the data that you have asked, what do you do at this point to get the rest of subsequent data?  For example, replace the "buffer" of type char with a structure of a type defined by the user with a size of 100 bytes or something to that extent.  You make a request for read/write and read/wrote less than 100 bytes.  How do you get the rest of the data?  ICB doing something in the background?  I could use this code with several structures, but then again, a particular Member of a structure is not the size of a byte as a tank.

Much appreciated,

Chris

The solution is to use a pointer to char sunk to allocate the data transmitted.  The only problem is that this buffer must be a pointer to the data type of the structure before a tank troop can be used for a successful program compilation. Thank you for your help.

Chris

Tags: NI Software

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