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Any way to discard received samples (instead of refill)?

Question asked by LeroyKii on Nov 24, 2016
Latest reply on Nov 24, 2016 by LeroyKii

Hello everyone,

 

We have strict time requirements in our project and we need a tight buffer syncronization we are achieving with some software tricks, not letting the libioo kbuffers ever underflow or overflow.

 

We'd like to read only samples when needed (let's say 10% of the time), but as far as I understand looking at the libiio code, refill() makes a memcpy internally, even though 90% of those memcpy are meaningless to us. Is there any way to discard 1 kbuffer and jump to the next one avoiding those useless memory operations?

 

In the opposite side, transmission, the only way I managed to don't lose buffer synchronization is to push() zeros when I don't want to transmit useful data, also having an overhead by zeroing the txbuf struct. I think this is harder to dodge, but If anyone have any tip...

Regards,
Leroy.

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