require Guardian::Base;
require Guardian::Config;
+require Guardian::Logger;
require Guardian::Parser;
require Guardian::Socket;
use warnings;
+# Disable warnings of unjoinded threads when stopping guardian.
+no warnings 'threads';
+
# Define version.
my $version ="2.0";
# Push the may be given config file argument.
my %mainsettings = &Guardian::Config::UseConfig($cmdargs{"config"});
+# Initialize Logger.
+my $logger = Guardian::Logger->New(%mainsettings);
+$logger->Log("debug", "Logger successfully initialized...");
+
+# Add the logger object to the mainsettings for passing
+# it to the modules.
+$mainsettings{Logger} = $logger;
+
+# Redirect perls "die" messages to the logger before exiting.
+$SIG{__DIE__} = sub { $logger->Log("err", "@_"); };
+
# Shared hash between the main process and all threads. It will store all
# monitored files and their current file position.
my %monitored_files :shared = ();
# Create the main queue. It is used to store and process all events which are
# reported and enqueued by the worker threads.
-my $queue :shared = new Thread::Queue or die "Could not create new, empty queue. $!\n";;
+my $queue :shared = new Thread::Queue or die "Could not create new, empty queue. $!";;
# Array to store all currently running worker objects.
# (Does not include the socket thread)
# Grab the data of the top enqueued event.
my $event = $queue->peek();
- print "Got event: $event\n";
+ # Log processed event.
+ $logger->Log("debug", "QUEUE - Processed event: $event");
# Drop processed event from queue.
$queue->dequeue();
$SIG{'KILL'} = sub { threads->exit(); };
# Create inotify watcher.
- my $watcher = new Linux::Inotify2 or die "Could not use inotify. $!\n";
+ my $watcher = new Linux::Inotify2 or die "Could not use inotify. $!";
# Monitor the specified file.
- $watcher->watch("$file", IN_MODIFY) or die "Could not monitor $file. $!\n";
+ $watcher->watch("$file", IN_MODIFY) or die "Could not monitor $file. $!";
# Switch watcher into non-blocking mode.
$watcher->blocking(0);
+ # Log successfully spawned worker.
+ $logger->Log("debug", "Spawned worker thread for: $file");
+
# Infinite loop.
while(1) {
# Check for any events and perform them, if there
my $fileposition = $monitored_files{$file};
# Open the file.
- open (FILE, $file) or die "Could not open $file. $!\n";
+ open (FILE, $file) or die "Could not open $file. $!";
# Seek to the last known position.
seek (FILE, $fileposition, 0);
# Create the Server socket by calling the responsible function.
my $server = &Guardian::Socket::Server();
+ # Log successfull creation of socket.
+ $logger->Log("debug", "Listening to Socket...");
+
# Accept incomming connections from the socket.
while (my $connection = $server->accept()) {
# Autoflush the socket after the data
# Remove any newlines.
chomp($message);
+ # Log recieved socket command.
+ $logger->Log("debug", "Socket - Recieved message: $message");
+
# Send the recieved data message to the
# socket parser.
my $action = &Guardian::Socket::Message_Parser($message);
# Loop through the hash which contains the monitored files and start
# a worker thread for each single one.
foreach my $file (keys %monitored_files) {
+ $logger->Log("debug", "Starting worker thread for $file");
# Create worker thread for the file.
push @running_workers, threads->create(\&Worker,$file);
}
# thread so perl can do an automatically clean-up.
$worker->kill('KILL');
}
+ $logger->Log("debug", "All workers are stopped now...");
}
#
## reloading all configure options and stopping/starting the worker threads.
#
sub Reload () {
+ # Log reload.
+ $logger->Log("info", "Reload configuration...");
+
# Stop all running workers.
&StopWorkers();
# Re-read configuration file.
%mainsettings = &Guardian::Config::UseConfig($cmdargs{"config"});
+ # Update Logger settings.
+ $logger = Guardian::Logger->Update(%mainsettings);
+
+ # Update logger object in mainsettings hash.
+ $mainsettings{Logger} = $logger;
+
# Re-generate hash of monitored files.
%monitored_files = &Guardian::Base::GenerateMonitoredFiles(\%mainsettings, \%monitored_files);
## by the signal handler when recieving INT (2), QUIT (3) and TERM (15) signals.
#
sub Shutdown () {
+ # Log shutdown.
+ $logger->Log("info", "Shutting down...");
+
# Stop all workers.
&StopWorkers();
# exiting.
sleep(1);
+ # Log good bye message.
+ $logger->Log("debug", "Good Bye!");
+
# Exit guardian.
exit;
}