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Re: [lwip-users] LW IP - TCP instantaneous data transmission

From: Noam Weissman
Subject: Re: [lwip-users] LW IP - TCP instantaneous data transmission
Date: Wed, 31 Aug 2016 18:56:34 +0000

Hi Anand,

I do not know what HTTP server you use but what I sent earlier is just a skeleton or pseudo code

for you to get an idea on how to send a large buffer in chunks.

If you cannot send the hole buffer (make sense) and you are limited with memory you must wait

for the TCP stack to free the buffer it used to send your data before you can send more. Here comes

the sent call back in hand... it synchronizes sending and freeing of memory.

Do you understand that  ?

Try and follow the code I wrote in an earlier reply.

Good luck,


From: lwip-users <lwip-users-bounces+address@hidden> on behalf of address@hidden <address@hidden>
Sent: Wednesday, August 31, 2016 9:31 PM
To: Mailing list for lwIP users
Subject: Re: [lwip-users] LW IP - TCP instantaneous data transmission
anand arjunan wrote:
> Should I do something in the http_sent callback to make room for next
> set of data ?

I'm afraid I don't really understand your questions. As Noam said, have
a look at the http server, I guess you can learn everything you need
from there.


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