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|
use Socket;
use Fcntl;
#
# Clean up if this is the second load.
#
# Don't close anything so we can be loaded twice.
#
#if($PUKEFd != undef){
# &remsel($PUKEFd);
# close($PUKEFd);
# sleep(1);
# $PUKEFd = undef;
#}
#
# Puke timeout waiting for messages
$PUKE_TIMEOUT = 10;
#
# Setup flag fo syncronous operation
# 1 for sync
# 0 for async/fly by the seat of your pants
#
$SYNC = 0;
#
# Setup debugging logger, comment out for production use
#
$DEBUG = 0;
if($DEBUG){
open(LOG, ">msg-log") || warn "Failed to open log file: $!\n";
select(LOG); $| = 1; select(STDOUT);
print LOG "Start time: ". `date`;
}
#
# Multi operation level handler, winId Based.
#
# PUKE_HANDLER{Cmd}{winId} = sub();
%PUKE_HANDLER = ();
#
# Default handler is called if no handler defined
# Default handlers defined in commands-handler.pl
# Single level PUKE_DEF_HANDLER{$cmd};
#
#%PUKE_DEF_HANDLER = ();
#require 'commands-perl.pl';
&docommand("/load commands-perl.pl");
#require 'commands-handler.pl';
&docommand("/load commands-handler.pl");
$PukeHeader = 42; # Alternating 1010 for 32 bits
$PukePacking = "Iiiiia*"; # 4 ints, followed by any number of of characters
$PukeMSize = length(pack($PukePacking, $PukeHeader, 0, 0, 0, 0, ""));
if(!$ENV{'PUKE_SOCKET'}) {
$sock = $ENV{'HOME'} . "/.ksirc.socket";
}
else {
$sock = $ENV{'PUKE_SOCKET'};
}
if($PUKEFd == undef){
$PUKEFd = &newfh;
$proto = getprotobyname('tcp');
socket($PUKEFd, PF_UNIX, SOCK_STREAM, 0) || print "PUKE: Sock failed: $!\n";
$sun = sockaddr_un($sock);
print "*P* PUKE: Connecting to $sock\n";
connect($PUKEFd,$sun) || (die "Puke: Connect failed: $!\n",$PUKEFailed=1);
select($PUKEFd); $| = 1; select(STDOUT);
#fcntl($PUKEFd, F_SETFL, O_NONBLOCK);
}
# Arg1: Command
# Arg2: WinId
# Arg3: iArg
# Arg4: cArg
sub PukeSendMessage {
my($cmd, $winid, $iarg, $carg, $handler, $waitfor) = @_;
# print("PUKE: cArg message too long $cArg\n") if(length($carg) > 50);
$PUKE_HANDLER{$cmd}{$winid} = $handler if $handler != undef;
my $msg = pack($PukePacking, $PukeHeader, $cmd, $winid, $iarg, length($carg), $carg);
syswrite($PUKEFd, $msg, length($msg));
# print STDERR "*** " . $msg . "\n";
print LOG kgettimeofday() . " SEND message: CMD: $PUKE_NUM2NAME{$cmd} WIN: $winid IARG: $iarg LEN: " . length($carg) . " CARG: $carg\n" if $DEBUG;
if($SYNC == 1 || $waitfor == 1){
return &sel_PukeRecvMessage(1, $winid, -$cmd, $carg);
}
return ();
}
sub sel_PukeRecvMessage {
($wait, $wait_winid, $wait_cmd, $wait_carg) = @_;
my($m);
my($cmd, $winid, $iarg, $carg, $junk);
while(1){
my $old_a = $SIG{'alarm'};
$SIG{'alarm'} = sub { die "alarm\n"; };
my $old_time = alarm($PUKE_TIMEOUT);
eval {
$len = sysread($PUKEFd, $m, $PukeMSize);
};
if($@){
print "*E* Timeout waiting for data for first sysread\n";
$SIG{ALRM} = $old_a;
alarm($old_time);
return;
}
$SIG{ALRM} = $old_a;
alarm($old_time);
if($len== 0){
&remsel($PUKEFd);
close($PUKEFd);
return;
}
# print "Length: $len " . length($m) . "\n";
($header, $cmd, $winid, $iarg, $length, $carg) = unpack($PukePacking, $m);
if($header != $PukeHeader){
print("*E* Invalid message received! Discarding! Got: $header wanted: $PukeHeader\n");
# return;
}
if($length > 0){
my $old_a = $SIG{'alarm'};
$SIG{'alarm'} = sub { die "alarm\n"; };
my $old_time = alarm($PUKE_TIMEOUT);
eval {
$clen = sysread($PUKEFd, $m2, $length);
};
if($@){
print "*E* Timeout waiting for cArg data\n";
}
$SIG{ALRM} = $old_a;
alarm($old_time);
if($length != $clen){
print "\n*E* Warning: wanted to read: $length got $clen\n";
}
$m .= $m2;
($header, $cmd, $winid, $iarg, $length, $carg) = unpack($PukePacking, $m);
}
# print("PUKE: Got => $PUKE_NUM2NAME{$cmd}/$cmd\n");
# print("PUKE: Got: $cmd, $winid, $iarg, $length, $carg\n");
# print("\n");
if($winid == undef){ $winid = 0; }
$blah = $carg;
$blah =~ s/\000//g;
print LOG kgettimeofday() . " GOT message: CMD: $PUKE_NUM2NAME{$cmd} WIN: $winid IARG: $iarg LEN: $length CARG: $blah\n" if $DEBUG;
#
# Check both $cmd and the correct reply -$cmd
#
my(%ARG) = ('iCommand' => $cmd,
'iWinId' => $winid,
'iArg' => $iarg,
'cArg' => $carg);
# print "*I* Def handler: $PUKE_DEF_HANDLER{$cmd}\n";
if($wait == 1 && $winid == $wait_winid && $wait_cmd == $cmd){
print LOG kgettimeofday() . " WAIT message: CMD: $PUKE_NUM2NAME{$cmd} WIN: $winid IARG: $iarg LEN: $length CARG: $blah\n" if $DEBUG;
($wait, $wait_winid, $wait_cmd, $wait_carg) = ();
return %ARG;
}
if($PUKE_HANDLER{-$cmd}{$winid}){ # one shot/command handler
&{$PUKE_HANDLER{-$cmd}{$winid}}(\%ARG);
} elsif ($PUKE_HANDLER{$cmd}{$winid}){
&{$PUKE_HANDLER{$cmd}{$winid}}(\%ARG);
} elsif ($PUKE_W_HANDLER{$cmd}{$winid}) { # widget specific handler
&{$PUKE_W_HANDLER{$cmd}{$winid}}(\%ARG);
} elsif ($PUKE_DEF_HANDLER{"$cmd"}) {# catch all
&{$PUKE_DEF_HANDLER{"$cmd"}}(\%ARG);
}
else {
#
# If there was no handler this is a widget creation falling throuhg
#
if($wait == 1 && (substr($wait_carg,0,7) eq substr($carg,0,7))){
print LOG kgettimeofday() . " WAI2 message: CMD: $PUKE_NUM2NAME{$cmd} WIN: $winid IARG: $iarg LEN: $length CARG: $blah\n" if $DEBUG;
($wait, $wait_winid, $wait_cmd, $wait_carg) = ();
return %ARG;
}
# No handler at all, unkown reply
print("*E* PUKE: Got unkown command: $cmd/$PUKE_NUM2NAME{$cmd}\n");
# print("PUKE: Got: $cmd, $winid, $iarg, $carg\n");
}
#
# If we're not waiting for a message, return
#
if(!$wait){
($wait, $wait_winid, $wait_cmd, $wait_carg) = ();
return ();
}
my($rin, $rout) =('', '');
vec($rin,fileno($PUKEFd),1) = 1;
$nfound = select($rout=$rin, undef, undef, 1);
if($nfound < 1){
print "*E* PUKE: Timed out waiting for reply, returning null\n";
print LOG kgettimeofday() . " FAIL message: CMD: $PUKE_NUM2NAME{$wait_cmd} WIN: $wait_winid IARG: ### LEN: $length CARG: $wait_carg\n" if $DEBUG;
return ();
}
}
}
&addsel($PUKEFd, "PukeRecvMessage", 0);
# Basics are up and running, now init Puke/Ksirc Interface.
my(%ARG) = &PukeSendMessage($PUKE_SETUP, $::PUKE_CONTROLLER, 0, $server, undef, 1);
$PukeMSize = $ARG{'iArg'};
print "*P* Puke: Initial Setup complete\n";
print "*P* Puke: Communications operational\n";
|
