# Created: 20000124
#
-if (&IsParam("useStrict")) { use strict; }
-
use POSIX qw(_exit);
sub openSHM {
my $IPC_PRIVATE = 0;
my $size = 2000;
+ if (&IsParam("noSHM")) {
+ &status("Created shared memory: disabled. [bot may become unreliable]");
+ return 0;
+ }
+
if (defined( $_ = shmget($IPC_PRIVATE, $size, 0777) )) {
&status("Created shared memory (shm) key: [$_]");
return $_;
my $size = 3*80;
my $retval = '';
+ return '' if (&IsParam("noSHM"));
+
if (shmread($key,$retval,$position,$size)) {
return $retval;
} else {
my $position = 0;
my $size = 80*3;
+ return if (&IsParam("noSHM"));
+
# NULL hack.
### TODO: create shmClear to deal with this.
if ($str !~ /^$/) {
}
foreach (keys %forked) {
- my $time = time() - $forked{$_}{Time};
+ my $n = $_;
+ my $time = time() - $forked{$n}{Time};
next unless ($time > $forker_timeout);
### TODO: use &time2string()?
- &WARN("Fork: looks like we lost '$_', executed $time ago.");
- delete $forked{$_};
+ &WARN("Fork: looks like we lost '$n', executed $time ago");
+
+ my $pid = $forked{$n}{PID};
+ if (!defined $pid) {
+ &WARN("Fork: no pid for $n.");
+ delete $forked{$n};
+ next;
+ }
+
+ # don't kill parent!
+ if ($pid == $$) {
+ &status("Fork: pid == \$\$ ($$)");
+ next;
+ }
+
+ if ( -d "/proc/$pid") {
+ &status("Fork: killing $name ($pid)");
+ kill 9, $pid;
+ }
+
+ delete $forked{$n};
}
my $count = 0;
$count++;
}
- if (exists $forked{$name}) {
+ if (exists $forked{$name} and !scalar keys %{ $forked{$name} }) {
+ &WARN("addF: forked{$name} exists but is empty; deleting.");
+ undef $forked{$name};
+ }
+
+ if (exists $forked{$name} and scalar keys %{ $forked{$name} }) {
my $time = $forked{$name}{Time};
my $continue = 0;
- if (-d "/proc/$forked{$name}{PID}") {
+ $continue++ if ($forked{$name}{PID} == $$);
+
+ if ($continue) {
+ &WARN("hrm.. fork pid == mypid == $$; how did this happen?");
+
+ } elsif ( -d "/proc/$forked{$name}{PID}") {
&status("fork: still running; good. BAIL OUT.");
+ return 0;
+
} else {
&WARN("Found dead fork; removing and resetting.");
$continue = 1;
if ($continue) {
# NOTHING.
+
} elsif (time() - $time > 900) { # stale fork > 15m.
&status("forked: forked{$name} presumably exited without notifying us.");
+
} else { # fresh fork.
&msg($who, "$name is already running ". &Time2String(time() - $time));
return 0;
}
$forked{$name}{Time} = time();
+ $forked{$name}{PID} = $$;
$forkedtime = time();
$count{'Fork'}++;
return 1;
POSIX::_exit(0);
}
+sub shmFlush {
+ return if ($$ != $::bot_pid); # fork protection.
+
+ if (@_) {
+ &ScheduleThis(5, "shmFlush");
+ return if ($_[0] eq "2");
+ }
+
+ my $time;
+ my $shmmsg = &shmRead($shm);
+ $shmmsg =~ s/\0//g; # remove padded \0's.
+ if ($shmmsg =~ s/^(\d+): //) {
+ $time = $1;
+ }
+
+ foreach (split '\|\|', $shmmsg) {
+ next if (/^$/);
+ &VERB("shm: Processing '$_'.",2);
+
+ if (/^DCC SEND (\S+) (\S+)$/) {
+ my ($nick,$file) = ($1,$2);
+ if (exists $dcc{'SEND'}{$who}) {
+ &msg($nick, "DCC already active.");
+ } else {
+ &DEBUG("shm: dcc sending $2 to $1.");
+ $conn->new_send($1,$2);
+ $dcc{'SEND'}{$who} = time();
+ }
+ } elsif (/^SET FORKPID (\S+) (\S+)/) {
+ $forked{$1}{PID} = $2;
+ } elsif (/^DELETE FORK (\S+)$/) {
+ delete $forked{$1};
+ } elsif (/^EVAL (.*)$/) {
+ &DEBUG("evaling '$1'.");
+ eval $1;
+ } else {
+ &DEBUG("shm: unknown msg. ($_)");
+ }
+ }
+
+ &shmWrite($shm,"") if ($shmmsg ne "");
+}
+
1;