Question

My application is acting as client for a banks server, sending request and getting response from that server. After response processing is done in database which takes some time, so If sever send response in 0.5 second and db operation takes 1 sec after which only my application again try to receive data from server through begin receive then should data will be accumulated somewhere and if yes where it will be stored. Is there will be some limitation so that data will be overflowed and if it happen whether it will closed this socket. I am declaring my socket buffer size to 1024. If anyone also have some article which clear my doubts please share it.

Answer 1

Can you control what the server is sending to you? In most cases when the receiver operates on the received data, sending an application-level ACK upon finishing the work will allow the sender to know when to send the next request. This will ensure no data is lost (since TCP will make sure it does not get lost in the network).

If you can’t change the way the server sends you data, you can consider running the receiver in a different thread, where it will save every incoming request to a cache (either only in RAM or to the HD). Then, a worker thread (or multiple threads) will read requests from that cache and do the work you need. This way you will have full control of the buffering of the data.