From: Brian Elliott Finley on behalf of Brian Elliott Finley
Sent: Sat 31/12/2005 11:19
To: Bernard Li
Subject: Re: Help with flamethrowerd
Go ahead and check your code into the flamethrower
trunk.
I'm betting that what you're getting stuck on is a perl fork
related concept.
I've attached a very simple forking perl daemon as an
example.
Again, please send these to the -devel list too. Others
may have good
feedback on things like this also.
Cheers,
-Brian
Thus spake Bernard Li ([EMAIL PROTECTED]):
>Hi
Brian:
>
>I'm integrating the BitTorrent transport into Flamethrower
and could use your help explaining the cast() subrountine in
flamethrowerd.
>
>Instead of running "build_udp_sender_cmd", I
created a new subrountine called "build_bittorrent_cmd" which calls the
bittorrent-console command. This command is used to seed the torrent and
is expected to be started when flamethrowerd is started and not stopped until
flamethrowerd is stopped.
>
>I have added a call to subroutine
maketorrent() which creates the torrent inside the cast subroutine which is
called prior to build_bittorrent_cmd().
>
>Here's the code snippet
from cast():
>
> # Make torrent if using the
BitTorrent transport
> if ($transport eq "bittorrent")
{
>
maketorrent($module);
> }
> #
Fork and cast
> if ($parent_pid = fork)
{
> record_pid($parent_file,
$parent_pid);
> } elsif (defined $parent_pid) { # send
the forked child off
> setsid or
die "Can't start a new session:
$!";
> print "casting $module\n"
if($debug);
> my $cmd =
"";
> if ($transport eq
"bittorrent")
{
> $cmd
=
build_bittorrent_cmd($module);
>
} else
{
> $cmd
=
build_udp_sender_cmd($module);
>
}
>
>It basically loops through each module, making the torrent and
seeding it, however, it gets stuck in the middle until I kill the process of the
previous module (the pid is recorded in
/var/state/systemimager/flamethrower).
>
>Perhaps if I understand
the cast() subroutine better, then I will be able to figure this
out.
>
>Thanks,
>
>Bernard
--
Brian Elliott
Finley
Mobile: 630.631.6621
