fd_set iteration

[Jags]

Hi -- got a quickie (I hope) for you guys:

I saw an example of doing this (on Unix, select.h) but I dont remember much except the result..

Basically, this is what I'm interested in doing (pseudo-code wise):

fd_set myset
FD_ZERO(&myset)
for (i=0; i<32; i++)
printf myset[i]\n , or myset.fds_bits[i].. or whatever

FD_ISSET() checks the status of each bit, but I want to actually access/print their values. The desired output:

0
0
0
0
0
.... (32 times)

So, who knows how I can gut the internal organs of an fd_set?

Thanks

[FillYourBrain]

you could loop, using the FD_ISSET macro.

I believe the descriptor set is defined as an array of unsigned ints, however I don't believe you should make that assumption and use it that way. the loop with FD_ISSET is much safer.

[Jags]

Hmm.. FD_ISSET would return 1 if set, 0 if not set.. I'm not sure that's what I was thinking of. I believe I saw the output of some bits expressed in base2->base10 -- but 1 set bit (00000001) in an fd_set is still "1" in decimal right, sooo.. maybe I'm not remembering accurately. Thanks anyway.. I'll have to stew on this a bit longer.

[quzah]

I'm not sure why you need to stew about anything.

for( x = 0; x < highestdescriptor; x++ )
{
    printf( "%d", FD_ISSET( descriptors, x ) );
}
printf( "\n" );

So what exactly are you having problems with?


Quzah.