I used to set timeout on socket with the following code: 

my $timeout = pack( 'L!L!', $seconds, 0 );
defined $socket->sockopt( SO_RCVTIMEO, $timeout )
  or die "Couldn't set timeout: $!";

[download]

And it worked just fine till they released NetBSD 6.0. It uses 64-bit time_t on all architectures, so I'm getting failures from cpan testers for NetBSD 6.0 on i386. Now I'm looking for a new elegant way to pack timeval. I can easily do it in C: 

use 5.010;
use strict;
use warnings;

use Inline C => 'DATA';

my $timeval = pack_timeval(2,0);

__DATA__
__C__

SV* pack_timeval(time_t tv_sec, long tv_usec) {
    struct timeval tv;

    tv.tv_sec = tv_sec;
    tv.tv_usec = tv_usec;
    return newSVpv((char *) &tv, sizeof(struct timeval));
}

[download]
But I don't see any way to get size of time_t using pure Perl, it seems Config doesn't provide this parameter.

In reply to Packing struct timeval by zwon

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