[lwip-devel] [patch #3796] api_lib.c: patch for netconn_write(), fixes a possible race condition

[Simon Goldschmidt]

Follow-up Comment #5, patch #3796 (project lwip):

Funny, I did not read this patch before, but last weekend I was worried about
exactly that bit of code, accessing the pdb->snd_buf from the user thread.
As to your questions, Kieran:

- I don't think the patch is a solution, it only reduces the number of
possible conflicts as sndbuf is not read as often as before

- the two threads seem to be tcpip_thread and an application thread using
sockets or netconn-api.

- I think this IS a major problem, but it can only be solved by (at least
slightly) redesigning the netconn/socket api

I'm interested in going into this, but it could take some time...

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