[lwip-devel] [patch #7702] Include ability to increase the socket number with defined offset

[Nick van IJzendoorn]

Follow-up Comment #2, patch #7702 (project lwip):

You should be cautious with that since you can easily make an configuration
error if (LWIP_SOCKET_MAX - LWIP_SOCKET_MIN) < (MEMP_NUM_RAW_PCB +
MEMP_NUM_UDP_PCB + MEMP_NUM_TCP_PCB + MEMP_NUM_TCP_PCB_LISTEN)

Another idea would be to force the LWIP_SOCKET_MIN / LWIP_SOCKET_OFFSET to be
byte alignment so you can reduce the performance loss on redirecting the
FD_SET in select to the appropriate drivers. Since you can then quickly check
each byte and copy it to an shadow FD_SET.

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