[lwip-users] tcp_output functionality

[cat]

Hello,

I am using LwIP 1.4.1 and doing an app that sends small chunks of data.
Since I don't have big buffer I am trying to use tcp_output to force smaller
chunks more promptly. I have disabled naggle, however still does not send
the data. 
What I do is:


A bit of step-by-step debugging shows that tcp_output never does anything
because it exits here:



I don't know enough to understand the comment. Can someone clarify to me
what is 'tcp_input_pcb' and what is the big picture behind this if. Should I
employ some other technique for prompt sending of the segments.

Thank you.



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