epoch1970;603556 Wrote:
> I you think my suggestion is worth your time, feel free to implement it
> in a sane way for everyone in the plugin. And thanks again for spotting
> the bug on bytes/pkts ;)
> BTW, I think I've been using "pack" inappropriately. What I believe but
> never got to implement and test is, in plain terms: i. pipes should be
> efficiently stored as bytes with 1/0 measures as bits; ii. once this is
> done making endianness enter the dance when evaluating the pipe would
> make for a smarter vote.
>
> There are 2 independent issues indeed. I figured bwm-ng was nice,
> despite its improbable name, due to the fact it was ported to so many
> platforms. On the mac the best I can do for now is calling "netstat -s
> -f inet". Not too bad, but you can start cooking another set of
> map/grep
> Maybe you want to stick to calling this util (or some other, or derive
> from this base, or
) ?
Ok, I'm working on "binary pipes". I'm a little confused as to how 32
bit perl handles shifts left greater than 32. E.g.:
Code:
--------------------
#!/usr/bin/perl -w
my $topbit1 = (1 << 31);
my $topbit2 = (1 << 32);
printf("topb1: %#010llx %#064llb %015llu\n", $topbit1, $topbit1,
$topbit1 );
printf("topb2: %#010llx %#064llb %015llu\n", $topbit2, $topbit2,
$topbit2 );
if ($topbit2 >= $topbit1) {
print "Hey!\n";
}
$topbit1 = 0xFFFFFFFF;
$topbit2 = $topbit1;
$topbit2 <<= 1;
$topbit2 |= 1;
printf("topb1: %#010llx %#064llb %015llu\n", $topbit1, $topbit1,
$topbit1 );
printf("topb2: %#010llx %#064llb %015llu\n", $topbit2, $topbit2,
$topbit2 );
if ($topbit2 > $topbit1) {
print "Hey!\n";
}
--------------------
..yields:
Code:
--------------------
topb1: 0x80000000
0b00000000000000000000000000000010000000000000000000000000000000
000002147483648
topb2: 0x00000001
0b00000000000000000000000000000000000000000000000000000000000001
000000000000001
topb1: 0xffffffff
0b00000000000000000000000000000011111111111111111111111111111111
000004294967295
topb2: 0xffffffff
0b00000000000000000000000000000011111111111111111111111111111111
000004294967295
--------------------
So...I think we're stuck in the world of 32bit unsigned ints. Which
means that if we want a pipe "window" larger than 32, we're talking
about using an array of 2 or more unsigned ints for the pipe.
--
gharris999
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