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Perl select() and fd_set differences

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September 23, 2009 19:46
Perl select() and fd_set differences
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Hi all,
Trying to port the ASSP app to NetWare, and found that NetWare has an 
fd_set typedef somewhat different to most:

> typedef struct fd_set
> {
>    int   fd_count;
>    int   fd_array[FD_SETSIZE];
> } fd_set;

where fd_count is the numeric size of the active portion of the fd_array 
for both input and output. It does have the FD_CLR, FD_SET, FD_ZERO and 
FD_ISSET macro's.

AFAICT this is a 'different' approach to that used by Perl pp_sselect(), 
(pp_sys.c) which uses a bit-map vector method.

Can anyone suggest what changes are needed to get IO::Select working 
with this 'fd_set' structure on Perl (5.8.9)? Any assistance would be 
much appreciated, and a working diff will be made available if I can get 
it working.

Cheers, and thanks in advance.

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