CODEWITHSUNDEEP
c++qtsocketstcp
Nyaruko
Nyaruko

Reputation: 4499

Qt, tcp/ip communication checksum

I am writing a data display program where I receive the data through a serial port. The listener is written by others and it is quite complex. Now I need to transfer the received data to another program/pc. So I am thinking of the standard tcp communication from Qt. Is there any class that come along with the tcp classes that does job like checksum? If I am transmitting an array of 10 doubles each time but at high frequency. How could I write a client that received all the data correctly without writing those complex algorithms to check the validity of received data bytes?

Upvotes: 0

Views: 722

Answers (1)

K. Barresi
K. Barresi

Reputation: 1315

TCP/IP includes these checks as part of the protocol itself. This includes guarantees for data integrity, as well as the correct re-assembly of data (i.e it will definitely be in the same order). You mentioned that TCP chops the datastream into packets; this is true, but it will re-assemble the packets in the correct order on the receiving end, or request a re-transmission if it needs to do so. All of this is taken care of by the Qt networking classes.

Upvotes: 2

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