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123 lines
3.1 KiB
Perl
123 lines
3.1 KiB
Perl
# freebsd-lib.pl
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# Functions for parsing freebsd ps output
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use IO::Handle;
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sub list_processes
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{
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local($pcmd, $line, $i, %pidmap, @plist);
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$pcmd = @_ ? "-p $_[0]" : "";
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open(PS, "ps -axwwww -o pid,ppid,user,vsz,%cpu,time,nice,tty,ruser,rgid,pgid,lstart,lim,command $pcmd |");
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for($i=0; $line=<PS>; $i++) {
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chop($line);
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if ($line =~ /ps -axwwww/ || $line =~ /^\s*PID/) { $i--; next; }
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$line =~ /^\s*(\d+)\s+(\d+)\s+(\S+)\s+(\d+)\s+([\d\.]+)\s+(\S+)\s+(-?\d+)\s+(\S+)\s+(\S+)\s+(\d+)\s+(\d+)\s+(-|\S+\s+\S+\s+\d+\s+\S+\s+\d+|\d+)\s+(\S+)\s+(.*)$/;
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$plist[$i]->{"pid"} = $1;
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$plist[$i]->{"ppid"} = $2;
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$plist[$i]->{"user"} = $3;
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$plist[$i]->{"size"} = "$4 kB";
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$plist[$i]->{"cpu"} = $5;
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$plist[$i]->{"time"} = $6;
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$plist[$i]->{"nice"} = $7;
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$plist[$i]->{"_tty"} = $8;
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$plist[$i]->{"_ruser"} = $9;
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$plist[$i]->{"_rgroup"} = getgrgid($10);
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$plist[$i]->{"_pgid"} = $11;
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$plist[$i]->{"_stime"} = $12;
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$plist[$i]->{"_lim"} = $13 eq "-" ? "Unlimited" : $13;
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$plist[$i]->{"args"} = $14;
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}
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close(PS);
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return @plist;
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}
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# renice_proc(pid, nice)
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sub renice_proc
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{
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return undef if (&is_readonly_mode());
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local $out = &backquote_logged("renice $_[1] -p $_[0] 2>&1");
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if ($?) { return $out; }
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return undef;
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}
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foreach $ia (keys %text) {
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if ($ia =~ /^freebsd(_\S+)/) {
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$info_arg_map{$1} = $text{$ia};
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}
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}
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@nice_range = (-20 .. 20);
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$has_fuser_command = 0;
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# get_new_pty()
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# Returns the filehandles and names for a pty and tty
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sub get_new_pty
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{
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local @ptys;
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opendir(DEV, "/dev");
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@ptys = map { "/dev/$_" } (grep { /^pty/ } readdir(DEV));
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closedir(DEV);
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local ($pty, $tty);
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foreach $pty (@ptys) {
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open(PTY, "+>$pty") || next;
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local $tty = $pty;
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$tty =~ s/pty/tty/;
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open(TTY, "+>$tty") || next;
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local $old = select(PTY); $| = 1;
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select(TTY); $| = 1; select($old);
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return (*PTY, *TTY, $pty, $tty);
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}
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return ();
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}
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# close_controlling_pty()
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# Disconnects this process from it's controlling PTY, if connected
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sub close_controlling_pty
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{
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if (open(DEVTTY, "/dev/tty")) {
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# Special ioctl to disconnect (TIOCNOTTY)
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ioctl(DEVTTY, 536900721, 0);
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close(DEVTTY);
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}
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}
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# open_controlling_pty(ptyfh, ttyfh, ptyfile, ttyfile)
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# Makes a PTY returned from get_new_pty the controlling TTY (/dev/tty) for
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# this process.
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sub open_controlling_pty
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{
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local ($ptyfh, $ttyfh, $pty, $tty) = @_;
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# Call special ioctl to attach /dev/tty to this new tty (TIOCSCTTY)
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ioctl($ttyfh, 536900705, 0);
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}
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# get_memory_info()
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# Returns a list containing the real mem, free real mem, swap and free swap
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# (In kilobytes).
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sub get_memory_info
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{
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my $sysctl = {};
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my $sysctl_output = &backquote_command("/sbin/sysctl -a 2>/dev/null");
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return ( ) if ($?);
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foreach my $line (split(/\n/, $sysctl_output)) {
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if ($line =~ m/^([^:]+):\s+(.+)\s*$/s) {
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$sysctl->{$1} = $2;
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}
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}
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return ( ) if (!$sysctl->{"hw.physmem"});
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my $mem_inactive = $sysctl->{"vm.stats.vm.v_inactive_count"} *
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$sysctl->{"hw.pagesize"};
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my $mem_cache = $sysctl->{"vm.stats.vm.v_cache_count"} *
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$sysctl->{"hw.pagesize"};
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my $mem_free = $sysctl->{"vm.stats.vm.v_free_count"} *
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$sysctl->{"hw.pagesize"};
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return ( $sysctl->{"hw.physmem"} / 1024,
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($mem_inactive + $mem_cache + $mem_free) / 1024 );
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}
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1;
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