public static void ReplaceExisting()
{
Log.Always("Attempting to replace another beagled.");
do
{
ShutdownRequest request = new ShutdownRequest();
Logger.Log.Info("Sending Shutdown");
request.Send();
// Give it a second to shut down the messaging server
Thread.Sleep(1000);
} while (!StartServer());
}
private static void DoMain(string [] args)
{
SystemInformation.SetProcessName("beagled-helper");
bool run_by_hand = (Environment.GetEnvironmentVariable("BEAGLE_RUN_HELPER_BY_HAND") != null);
bool log_in_fg = (Environment.GetEnvironmentVariable("BEAGLE_LOG_IN_THE_FOREGROUND_PLEASE") != null);
bool debug = false, disable_textcache = false;
foreach (string arg in args)
{
if (arg == "--disable-text-cache")
{
disable_textcache = true;
}
else if (arg == "--debug")
{
debug = true;
}
}
last_activity = DateTime.Now;
Log.Initialize(PathFinder.LogDir,
"IndexHelper",
debug ? LogLevel.Debug : LogLevel.Warn,
run_by_hand || log_in_fg);
Log.Always("Starting Index Helper process (version {0})", ExternalStringsHack.Version);
Log.Always("Running on {0}", SystemInformation.MonoRuntimeVersion);
Log.Always("Extended attributes are {0}", ExtendedAttribute.Supported ? "supported" : "not supported");
Log.Always("Command Line: {0}",
Environment.CommandLine != null ? Environment.CommandLine : "(null)");
if (disable_textcache)
{
Log.Always("Text cache is disabled.");
}
// Initialize GObject type system
g_type_init();
// Set the IO priority to idle, nice ourselves, and set
// a batch scheduling policy so we that we play nice
// on the system
if (Environment.GetEnvironmentVariable("BEAGLE_EXERCISE_THE_DOG") != null)
{
Log.Always("BEAGLE_EXERCISE_THE_DOG is set");
}
SystemPriorities.ReduceIoPriority();
int nice_to_set;
// We set different nice values because the
// internal implementation of SCHED_BATCH
// unconditionally imposes a +5 penalty on
// processes, and we want to be at nice +17,
// because it has a nice timeslice.
if (SystemPriorities.SetSchedulerPolicyBatch())
{
nice_to_set = 12;
}
else
{
nice_to_set = 17;
}
SystemPriorities.Renice(nice_to_set);
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);
// Start the server
Log.Debug("Starting messaging server");
bool server_has_been_started = false;
try {
server = new Server("socket-helper", true, false);
server.Start();
server_has_been_started = true;
} catch (InvalidOperationException ex) {
Logger.Log.Error(ex, "Couldn't start server. Exiting immediately.");
}
if (server_has_been_started)
{
// Whether we should generate heap-shot snapshots
heap_shot = (Environment.GetEnvironmentVariable("_HEY_LETS_DO_A_HEAP_SHOT") != null);
if (!run_by_hand)
{
// Start the monitor thread, which keeps an eye on memory usage and idle time.
ExceptionHandlingThread.Start(new ThreadStart(MemoryAndIdleMonitorWorker));
// Start a thread that watches the daemon and begins a shutdown
// if it terminates.
ExceptionHandlingThread.Start(new ThreadStart(DaemonMonitorWorker));
}
// Start the main loop
main_loop.Run();
ExceptionHandlingThread.JoinAllThreads();
// If we placed our sockets in a temp directory, try to clean it up
// Note: this may fail because the daemon is still running
if (PathFinder.GetRemoteStorageDir(false) != PathFinder.StorageDir)
{
try {
Directory.Delete(PathFinder.GetRemoteStorageDir(false));
} catch (IOException) { }
}
Log.Always("Index helper process shut down cleanly.");
}
}
public static void DoMain(string[] args)
{
SystemInformation.InternalCallInitializer.Init();
SystemInformation.SetProcessName("beagled");
// 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("Beagle 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 beagle using sudo. This can cause problems with");
Console.WriteLine("permissions in your .beagle and .wapi directories if you later try to run");
Console.WriteLine("as an unprivileged user. If you need to run beagle 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 beagle as root. Beagle 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 beagle-build-index tool.");
Console.WriteLine();
Console.WriteLine("You can override this setting using the beagle-config or beagle-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;
Log.Initialize(PathFinder.LogDir, "Beagle", arg_debug ? LogLevel.Debug : LogLevel.Warn, arg_fg);
Log.Always("Starting Beagle 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 BEAGLE_EXERCISE_THE_DOG_HARDER-related processing.
ExerciseTheDogHarder();
// Initialize GObject type system
g_type_init();
if (SystemInformation.XssInit())
{
Logger.Log.Debug("Established a connection to the X server");
}
else
{
Logger.Log.Debug("Unable to establish a connection to the X server");
}
XSetIOErrorHandler(BeagleXIOErrorHandler);
// 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("Beagle daemon process shut down cleanly.");
}