#!/usr/bin/perl

use Getopt::Long;
GetOptions("pid=i" => \$pid, 
           "trace!" => \$trace, 
           "nonet!" => \$nonet);

# print "$pid\n";


$subsys->{UNDEFINED} = 0;
$subsys->{MDC} = 1;
$subsys->{MDS} = 2;
$subsys->{OSC} = 3;
$subsys->{OST} = 4;
$subsys->{CLASS} = 5;
$subsys->{OBDFS} = 6;
$subsys->{LLITE} = 7;
$subsys->{RPC} = 8;
$subsys->{EXT2OBD} = 9;
$subsys->{PORTALS} = 10;
$subsys->{SOCKNAL} = 11;
$subsys->{QSWNAL} = 12;
$subsys->{PINGER} = 13;
$subsys->{FILTER} = 14;
$subsys->{TRACE} = 15; # obdtrace, not to be confused with D_TRACE */
$subsys->{ECHO} = 16;
$subsys->{LDLM} = 17;
$subsys->{LOV} = 18;
$subsys->{GMNAL} = 19;
$subsys->{PTLROUTER} = 20;


$masks->{TRACE} = 1 << 0; # /* ENTRY/EXIT markers */
$masks->{INODE} = 1 << 1; #
$masks->{SUPER} = 1 << 2; #
$masks->{EXT2} = 1 << 3; # /* anything from ext2_debug */
$masks->{MALLOC} = 1 << 4; # /* print malloc, free information */
$masks->{CACHE} = 1 << 5; # /* cache-related items */
$masks->{INFO} = 1 << 6; # /* general information */
$masks->{IOCTL} = 1 << 7; # /* ioctl related information */
$masks->{BLOCKS} = 1 << 8; # /* ext2 block allocation */
$masks->{NET} = 1 << 9; # /* network communications */
$masks->{WARNING} = 1 << 10; #
$masks->{BUFFS} = 1 << 11; #
$masks->{OTHER} = 1 << 12; #
$masks->{DENTRY} = 1 << 13; #
$masks->{PORTALS} = 1 << 14; # /* ENTRY/EXIT markers */
$masks->{PAGE} = 1 << 15; # /* bulk page handling */
$masks->{DLMTRACE} = 1 << 16; #
$masks->{ERROR} = 1 << 17; # /* CERROR} = ...) == CDEBUG} = D_ERROR, ...) */
$masks->{EMERG} = 1 << 18; # /* CEMERG} = ...) == CDEBUG} = D_EMERG, ...) */
$masks->{HA} = 1 << 19; # /* recovery and failover */



sub extractpid
{
    $_ = shift;
#    print "$_\n";
    /l. [0-9]* (.*)\):/;
    return $1;
}

sub entering
{
    $_ = shift;
    $entering = /Process entered/;
}

sub leaving
{
    $_ = shift;
    $entering = /Process leaving/;
}

sub getsubsys
{
    my ($subsys, $mask) = split ":";
    return $subsys;
}

sub getmask
{
    my ($subsys, $mask) = split ":";
    return $mask;
}

while (<STDIN>) {
    $linepid = extractpid($_);
    $linemask = getmask($_);
    $linesubsys = getsubsys($_);

#    printf "---> mask %x subsys %x\n", $linemask, $linesubsys;

    if (leaving($_)) {
        chop $prefix->{$linepid};
        chop $prefix->{$linepid};
    }
    if ( !$pid || $linepid == $pid) {
        next if ($trace && $linemask != $masks->{TRACE});
        next if ($nonet && 
                 (  $linesubsys == $subsys->{RPC} ||
                    $linesubsys == $subsys->{NET} ||
                    $linesubsys == $subsys->{PORTALS} ||
                    $linesubsys == $subsys->{SOCKNAL} ||
                    $linesubsys == $subsys->{QSWNAL} ||
                    $linesubsys == $subsys->{GMNAL}));

#        printf "sub/mask: %s - %s\n", getsubsys($_), getmask($_);

        printf "%s%s", $prefix->{$linepid}, $_;
        last if $count++ > 100;
    }
    if (entering($_)) {
        $prefix->{$linepid} .= '  ';
    } 
}

# printf "argv %s pid %d\n", $ARGV[0], extractpid($ARGV[0]);