private static void HandleSignal(int signal)
{
Log.Warn("Handling signal {0} ({1})", signal, (Mono.Unix.Native.Signum)signal);
// If we get SIGUSR1, turn the debugging level up.
if ((Mono.Unix.Native.Signum)signal == Mono.Unix.Native.Signum.SIGUSR1)
{
LogLevel old_level = Log.Level;
Log.Level = LogLevel.Debug;
Log.Debug("Moving from log level {0} to Debug", old_level);
}
string span = StringFu.TimeSpanToString(DateTime.Now - last_activity);
if (CurrentDisplayUri == null)
{
Log.Warn("Filtering status ({0} ago): no document is currently being filtered.", span);
}
else if (CurrentFilter == null)
{
Log.Warn("Filtering status ({0} ago): determining filter and extracting properties for {1} ({2})", span, CurrentDisplayUri, CurrentContentUri);
}
else
{
Log.Warn("Filtering status ({0} ago): extracting text from {1} ({2}) with {3}", span, CurrentDisplayUri, CurrentContentUri, CurrentFilter);
}
// Don't shut down on information signals (SIGUSR1 and SIGUSR2)
if ((Mono.Unix.Native.Signum)signal == Mono.Unix.Native.Signum.SIGUSR1 ||
(Mono.Unix.Native.Signum)signal == Mono.Unix.Native.Signum.SIGUSR2)
{
return;
}
Logger.Log.Debug("Initiating shutdown in response to signal.");
Shutdown.BeginShutdown();
}
public static void DoMain(string[] args)
{
SystemInformation.InternalCallInitializer.Init();
SystemInformation.SetProcessName("beagrepd");
// Process the command-line arguments
bool arg_debug = false;
bool arg_debug_memory = false;
bool arg_fg = false;
int i = 0;
while (i < args.Length)
{
string arg = args [i];
++i;
string next_arg = i < args.Length ? args [i] : null;
switch (arg)
{
case "-h":
case "--help":
PrintUsage();
Environment.Exit(0);
break;
case "--mdb":
case "--mono-debug":
// Silently ignore these arguments: they get handled
// in the wrapper script.
break;
case "--list-backends":
Console.WriteLine("Current available backends:");
Console.Write(QueryDriver.ListBackends());
Environment.Exit(0);
break;
case "--fg":
case "--foreground":
arg_fg = true;
break;
case "--bg":
case "--background":
arg_fg = false;
break;
case "--replace":
arg_replace = true;
break;
case "--debug":
arg_debug = true;
break;
case "--heap-shot":
arg_heap_shot = true;
arg_debug = true;
arg_debug_memory = true;
break;
case "--no-snapshots":
case "--no-snapshot":
arg_heap_shot_snapshots = false;
break;
case "--heap-buddy":
case "--debug-memory":
arg_debug = true;
arg_debug_memory = true;
break;
case "--indexing-test-mode":
arg_indexing_test_mode = true;
arg_fg = true;
break;
case "--backend":
if (next_arg == null)
{
Console.WriteLine("--backend requires a backend name");
Environment.Exit(1);
break;
}
if (next_arg.StartsWith("--"))
{
Console.WriteLine("--backend requires a backend name. Invalid name '{0}'", next_arg);
Environment.Exit(1);
break;
}
if (next_arg [0] != '+' && next_arg [0] != '-')
{
QueryDriver.OnlyAllow(next_arg);
}
else
{
if (next_arg [0] == '+')
{
QueryDriver.Allow(next_arg.Substring(1));
}
else
{
QueryDriver.Deny(next_arg.Substring(1));
}
}
++i; // we used next_arg
break;
case "--add-static-backend":
if (next_arg != null)
{
QueryDriver.AddStaticQueryable(next_arg);
}
++i;
break;
case "--disable-scheduler":
arg_disable_scheduler = true;
break;
case "--indexing-delay":
if (next_arg != null)
{
try {
QueryDriver.IndexingDelay = Int32.Parse(next_arg);
} catch {
Console.WriteLine("'{0}' is not a valid number of seconds", next_arg);
Environment.Exit(1);
}
}
++i;
break;
case "--autostarted":
// FIXME: This option is deprecated and will be removed in a future release.
break;
case "--disable-text-cache":
disable_textcache = true;
break;
case "--version":
VersionFu.PrintVersion();
Environment.Exit(0);
break;
default:
Console.WriteLine("Unknown argument '{0}'", arg);
Environment.Exit(1);
break;
}
}
if (Environment.GetEnvironmentVariable("SABAYON_SESSION_RUNNING") == "yes")
{
Console.WriteLine("Beagrep is running underneath Sabayon, exiting.");
Environment.Exit(0);
}
if (arg_indexing_test_mode)
{
LuceneQueryable.OptimizeRightAway = true;
}
// Bail out if we are trying to run as root
if (Environment.UserName == "root" && Environment.GetEnvironmentVariable("SUDO_USER") != null)
{
Console.WriteLine("You appear to be running beagrep using sudo. This can cause problems with");
Console.WriteLine("permissions in your .beagrep and .wapi directories if you later try to run");
Console.WriteLine("as an unprivileged user. If you need to run beagrep as root, please use");
Console.WriteLine("'su -c' instead.");
Environment.Exit(-1);
}
if (Environment.UserName == "root" && !Conf.Daemon.GetOption(Conf.Names.AllowRoot, false))
{
Console.WriteLine("You can not run beagrep as root. Beagrep is designed to run from your own");
Console.WriteLine("user account. If you want to create multiuser or system-wide indexes, use");
Console.WriteLine("the beagrep-build-index tool.");
Console.WriteLine();
Console.WriteLine("You can override this setting using the beagrep-config or beagrep-settings tools.");
Environment.Exit(-1);
}
try {
string tmp = PathFinder.HomeDir;
} catch (Exception e) {
Console.WriteLine("Unable to start the daemon: {0}", e.Message);
Environment.Exit(-1);
}
MainLoopThread = Thread.CurrentThread;
// FIXME: We always turn on full debugging output! We are still
// debugging this code, after all...
// arg_debug ? LogLevel.Debug : LogLevel.Warn
Log.Initialize(PathFinder.LogDir, "Beagrep", LogLevel.Debug, arg_fg);
Log.Always("Starting Beagrep Daemon (version {0})", ExternalStringsHack.Version);
Log.Always("Running on {0}", SystemInformation.MonoRuntimeVersion);
Log.Always("Command Line: {0}",
Environment.CommandLine != null ? Environment.CommandLine : "(null)");
if (!ExtendedAttribute.Supported)
{
Logger.Log.Warn("Extended attributes are not supported on this filesystem. " +
"Performance will suffer as a result.");
}
if (disable_textcache)
{
Log.Warn("Running with text-cache disabled!");
Log.Warn("*** Snippets will not be returned for documents indexed in this session.");
}
// Check if global configuration files are installed
if (!Conf.CheckGlobalConfig())
{
Console.WriteLine("Global configuration files not found in '{0}'", PathFinder.ConfigDataDir);
Environment.Exit(-1);
}
// Start our memory-logging thread
if (arg_debug_memory)
{
ExceptionHandlingThread.Start(new ThreadStart(LogMemoryUsage));
}
// Do BEAGREP_EXERCISE_THE_DOG_HARDER-related processing.
ExerciseTheDogHarder();
// Initialize GObject type system
g_type_init();
// Lower our CPU priority
SystemPriorities.Renice(7);
QueryDriver.Init();
Server.Init();
#if MONO_1_9
Shutdown.SetupSignalHandlers(new Shutdown.SignalHandler(HandleSignal));
#else
SetupSignalHandlers();
#endif
Shutdown.ShutdownEvent += OnShutdown;
main_loop = new MainLoop();
Shutdown.RegisterMainLoop(main_loop);
// Defer all actual startup until the main loop is
// running. That way shutdowns during the startup
// process work correctly.
GLib.Idle.Add(new GLib.IdleHandler(StartupProcess));
// Start our event loop.
main_loop.Run();
// We're out of the main loop now, join all the
// running threads so we can exit cleanly.
ExceptionHandlingThread.JoinAllThreads();
// If we placed our sockets in a temp directory, try to clean it up
// Note: this may fail because the helper is still running
if (PathFinder.GetRemoteStorageDir(false) != PathFinder.StorageDir)
{
try {
Directory.Delete(PathFinder.GetRemoteStorageDir(false));
} catch (IOException) { }
}
Log.Always("Beagrep daemon process shut down cleanly.");
}