示例#1
0
int fuse_loop_mt(struct fuse *f)
{
    if (f == NULL)
        return -1;

    return fuse_session_loop_mt(fuse_get_session(f));
}
示例#2
0
文件: gfuse-loop.c 项目: madbob/FSter
static gboolean manage_fuse_st (GIOChannel *source, GIOCondition condition, gpointer data)
{
    int res;
    char *buf;
    gboolean ret;
    size_t bufsize;
    struct fuse *fuse;
    struct fuse_session *se;
    struct fuse_chan *ch;

    fuse = (struct fuse*) data;
    se = fuse_get_session (fuse);
    ch = fuse_session_next_chan (se, NULL);
    bufsize = fuse_chan_bufsize (ch);
    buf = alloca (bufsize);

    ret = TRUE;
    res = fuse_chan_recv (&ch, buf, bufsize);

    if (res == -EINTR)
        ret = TRUE;
    else if (res <= 0)
        ret = FALSE;
    else
        fuse_session_process (se, buf, res, ch);

    return ret;
}
示例#3
0
文件: main.c 项目: schoentoon/tfs
int main(int argc, char** argv) {
  struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
  char* mountpoint;
  int multithreaded;
  int foreground;
  if (fuse_opt_parse(&args, NULL, tfs_opts, tfs_opt_proc) == -1)
    return 1;
  if (fuse_parse_cmdline(&args, &mountpoint, &multithreaded, &foreground) == -1)
    return 1;
  struct fuse_chan *ch = fuse_mount(mountpoint, &args);
  if (!ch)
    return 1;
  struct fuse *fuse = fuse_new(ch, &args, &tfs_oper, sizeof(struct fuse_operations), NULL);
  if (!fuse) {
    fuse_unmount(mountpoint, ch);
    return 1;
  }
  if (options.debug == 1 ||  foreground == 1) {
    if (fuse_daemonize(foreground) != -1)
      return 1;
  }
  if (fuse_set_signal_handlers(fuse_get_session(fuse)) == -1) {
    fuse_unmount(mountpoint, ch);
    fuse_destroy(fuse);
    return 1;
  }
  initMultiCastListener();
  if (multithreaded)
    return fuse_loop_mt(fuse);
  if (!options.debug)
    fprintf(stderr, "Running single threaded and we are not debugging, your performance may suffer.\n");
  return fuse_loop(fuse);
};
示例#4
0
struct fuse *fuse_setup_common(int argc, char *argv[],
			       const struct fuse_operations *op,
			       size_t op_size,
			       char **mountpoint,
			       int *multithreaded,
			       int *fd,
			       void *user_data,
			       int compat)
{
	struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
	struct fuse_chan *ch;
	struct fuse *fuse;
	int foreground;
	int res;

	res = fuse_parse_cmdline(&args, mountpoint, multithreaded, &foreground);
	if (res == -1)
		return NULL;

#ifdef __APPLE__
	if (!*mountpoint) {
		fprintf(stderr, "fuse: no mount point\n");
		return NULL;
	}
#endif

	ch = fuse_mount_common(*mountpoint, &args);
	if (!ch) {
		fuse_opt_free_args(&args);
		goto err_free;
	}

	fuse = fuse_new_common(ch, &args, op, op_size, user_data, compat);
	fuse_opt_free_args(&args);
	if (fuse == NULL)
		goto err_unmount;

	res = fuse_daemonize(foreground);
	if (res == -1)
		goto err_unmount;

	res = fuse_set_signal_handlers(fuse_get_session(fuse));
	if (res == -1)
		goto err_unmount;

	if (fd)
		*fd = fuse_chan_fd(ch);

	return fuse;

err_unmount:
	fuse_unmount_common(*mountpoint, ch);
	if (fuse)
		fuse_destroy(fuse);
err_free:
	free(*mountpoint);
	return NULL;
}
static void fuse_teardown_common(struct fuse *fuse, char *mountpoint)
{
	struct fuse_session *se = fuse_get_session(fuse);
	struct fuse_chan *ch = fuse_session_next_chan(se, NULL);
	fuse_remove_signal_handlers(se);
	fuse_unmount_common(mountpoint, ch);
	fuse_destroy(fuse);
	free(mountpoint);
}
示例#6
0
void fuse_teardown(struct fuse *fuse, char *mountpoint) {
  struct fuse_session *se = fuse_get_session(fuse);
  struct fuse_chan *ch = se->ch;
  if (fuse->conf.setsignals)
    fuse_remove_signal_handlers(se);
  fuse_unmount(mountpoint, ch);
  fuse_destroy(fuse);
  free(mountpoint);
}
示例#7
0
/* ----------------------------------------------------- */
int main(int argc,char* argv[])
{
	signal(SIGINT, fs_sigint_handler); 
	fs_set_limit_attr();
	if (mpinit(0, 50)) return -1;

	voolefs.tc = 10;
	voolefs.tpool = threadpool_init(voolefs.tc ,10);
	voolefs.cinc  = 8;
	voolefs.phost = mpcalloc(sizeof(struct host));
	voolefs.phost->host = inet_addr("123.125.149.11");
	voolefs.phost->port = htons(4869);
	voolefs.hostc = 1; 
	voolefs.semc = 20;

	char* pmpoint = fs_create_mountpoint();
	struct fuse_args args = FUSE_ARGS_INIT(argc, argv);	
	char *fsname =(char*)mpcalloc(256);
	sprintf(fsname,"-osubtype=%s,fsname=%s",argv[0],pmpoint);
	mpfree(pmpoint);
	int ret = fuse_opt_parse(&args, NULL,NULL,NULL /*&voolefs, voolefs_opts, fs_opt_proc*/);
	int multithreaded = 0;
	int foreground = 0;
	ret = fuse_opt_insert_arg(&args,1,fsname);
/*	if (fuse_is_lib_option("ac_attr_timeout="))
		fuse_opt_insert_arg(&args, 1, "-oauto_cache,ac_attr_timeout=0");
*/	ret = fuse_parse_cmdline(&args, &voolefs.mountpoint, &multithreaded, &foreground);
	voolefs.ch = fuse_mount(voolefs.mountpoint, &args);
//	event_reinit(voolefs.ev_base);
	if(voolefs.ch)
	{
		ret = fcntl(fuse_chan_fd(voolefs.ch), F_SETFD, FD_CLOEXEC);
		voolefs.fuse = fuse_new(voolefs.ch,&args,&oper,sizeof(struct fuse_operations),NULL);
		if (voolefs.fuse == NULL)
		{
			fs_cleanup();
			abort();
		}
		fs_daemonize(0);
		voole_net_create();
/*		if( multithreaded)
			ret = fuse_loop_mt(voolefs.fuse);
		else
*/			ret = fuse_loop(voolefs.fuse);
	}
	if( voolefs.fuse )
		fuse_remove_signal_handlers(fuse_get_session(voolefs.fuse));
	mpfree(fsname);
	if( voolefs.peventbase )
	{
		event_base_free(voolefs.peventbase);
		voolefs.peventbase = NULL;
	}
	return ret;
}
示例#8
0
文件: gfuse-loop.c 项目: madbob/FSter
static gboolean manage_fuse_mt (GIOChannel *source, GIOCondition condition, gpointer data)
{
    int res;
    char *buf;
    size_t bufsize;
    struct fuse *fuse;
    struct fuse_session *se;
    struct fuse_chan *ch;
    GThreadPool *pool;
    GError *error;
    ThreadsData *info;

    fuse = (struct fuse*) data;

    error = NULL;
    pool = g_thread_pool_new (manage_request, fuse, -1, FALSE, &error);
    if (pool == NULL) {
        g_warning ("Unable to start thread pool: %s", error->message);
        g_error_free (error);
        return NULL;
    }

    se = fuse_get_session (fuse);
    ch = fuse_session_next_chan (se, NULL);
    bufsize = fuse_chan_bufsize (ch);

    while (1) {
        buf = (char*) malloc (bufsize);
        res = fuse_chan_recv (&ch, buf, bufsize);

        if (res == -EINTR) {
            free (buf);
            continue;
        }
        else if (res <= 0) {
            free (buf);
            break;
        }

        info = do_threads_data (buf, res);

        error = NULL;
        g_thread_pool_push (pool, info, &error);
        if (error != NULL) {
            g_warning ("Unable to start processing request: %s", error->message);
            g_error_free (error);
            free_threads_data (info);
        }
    }

    g_thread_pool_free (pool, TRUE, TRUE);
    return NULL;
}
示例#9
0
文件: gfuse-loop.c 项目: madbob/FSter
static void manage_request (gpointer data, gpointer user)
{
    struct fuse *fuse;
    struct fuse_session *se;
    struct fuse_chan *ch;
    ThreadsData *info;

    fuse = (struct fuse*) user;
    info = (ThreadsData*) data;

    se = fuse_get_session (fuse);
    ch = fuse_session_next_chan (se, NULL);
    fuse_session_process (se, info->buf, info->res, ch);

    free_threads_data (info);
}
示例#10
0
struct fuse *fuse_setup(int argc, char *argv[],
		const struct fuse_operations *op, size_t op_size,
		char **mountpoint, int *multithreaded, void *user_data)
{
	struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
	struct fuse_chan *ch=NULL;
	struct fuse *fuse;
	int foreground;
	int res;

	res = fuse_parse_cmdline(&args, mountpoint, multithreaded, &foreground);
	rDebug("res=%i", res);
	if (res == -1)
		return NULL;

	ch = fuse_mount(*mountpoint, &args);

	fuse = fuse_new(ch, &args, op, op_size, user_data);
	fuse_opt_free_args(&args);
	if (fuse == NULL || ch==NULL)
		goto err_unmount;

	res = fuse_daemonize(foreground);
	rDebug("res=%i", res);
	if (res == -1)
		goto err_unmount;

	if (fuse->conf.setsignals)
	{
		res = fuse_set_signal_handlers(fuse_get_session(fuse));
		rDebug("res=%i", res);
		if (res == -1)
			goto err_unmount;
	}

	return fuse;

err_unmount:
	fuse_unmount(*mountpoint, ch);
	if (fuse)
		fuse_destroy(fuse);
	free(*mountpoint);
	return NULL;
}
示例#11
0
文件: gfuse-loop.c 项目: madbob/FSter
/**
 * gfuse_loop_run:
 * @loop: the #GFuseLoop to run
 *
 * Runs a #GFuseLoop, mounting it and adding polling of the FUSE channel in
 * the mainloop. If multi-thread is required, also allocates all working
 * threads
 */
void gfuse_loop_run (GFuseLoop *loop)
{
    int thread;
    struct fuse_session *se;
    struct fuse_chan *ch;
    struct fuse *fuse_session;

    if (loop->priv->real_ops == NULL) {
        g_warning ("Invalid initialization of GFuseLoop, no operations loaded");
        return;
    }

    loop->priv->runtime_data = g_new0 (PrivateDataBlock, 1);
    loop->priv->runtime_data->loop = loop;

    loop->priv->shadow_ops = g_new0 (struct fuse_operations, 1);
    memcpy (loop->priv->shadow_ops, loop->priv->real_ops, sizeof (struct fuse_operations));
    loop->priv->shadow_ops->init = internal_init_wrapper;

    fuse_session = fuse_setup (loop->priv->startup_argc, loop->priv->startup_argv,
                               loop->priv->shadow_ops, sizeof (struct fuse_operations),
                               &loop->priv->mountpoint, &thread, loop->priv->runtime_data);

    loop->priv->threads = (thread != 0);
    se = fuse_get_session (fuse_session);
    ch = fuse_session_next_chan (se, NULL);
    loop->priv->fuse_fd = g_io_channel_unix_new (fuse_chan_fd (ch));

    /**
        TODO    Provide implementation also for multi-threads
    */

    /*
    if (thread)
        g_io_add_watch (loop->priv->fuse_fd, G_IO_IN, manage_fuse_mt, fuse_session);
    else
        g_io_add_watch (loop->priv->fuse_fd, G_IO_IN, manage_fuse_st, fuse_session);
    */

    g_io_add_watch (loop->priv->fuse_fd, G_IO_IN, manage_fuse_st, fuse_session);
}
示例#12
0
int fuse_loop_mt_proc(struct fuse *f, fuse_processor_t proc, void *data)
{
    int res;
    struct procdata pd;
    struct fuse_session *prevse = fuse_get_session(f);
    struct fuse_session *se;
    struct fuse_chan *prevch = fuse_session_next_chan(prevse, NULL);
    struct fuse_chan *ch;
    struct fuse_session_ops sop = {
        .exit = mt_session_exit,
        .exited = mt_session_exited,
        .process = mt_session_proc,
    };
    struct fuse_chan_ops cop = {
        .receive = mt_chan_receive,
        .send = mt_chan_send,
    };

    pd.f = f;
    pd.prevch = prevch;
    pd.prevse = prevse;
    pd.proc = proc;
    pd.data = data;

    se = fuse_session_new(&sop, &pd);
    if (se == NULL)
        return -1;

    ch = fuse_chan_new(&cop, fuse_chan_fd(prevch), sizeof(struct fuse_cmd *),
                       &pd);
    if (ch == NULL) {
        fuse_session_destroy(se);
        return -1;
    }
    fuse_session_add_chan(se, ch);
    res = fuse_session_loop_mt(se);
    fuse_session_destroy(se);
    return res;
}
示例#13
0
// run fskit with fuse
int fskit_fuse_main( struct fskit_fuse_state* state, int argc, char** argv ) {

   int rc = 0;

   // set up FUSE
   struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
   struct fuse_chan* ch = NULL;
   struct fuse* fs = NULL;
   int multithreaded = 1;
   int foreground = 0;
   char* mountpoint = NULL;

   // parse command-line...
   rc = fuse_parse_cmdline( &args, &mountpoint, &multithreaded, &foreground );
   if( rc < 0 ) {

      fskit_error("fuse_parse_cmdline rc = %d\n", rc );
      fuse_opt_free_args(&args);

      return rc;
   }

   if( mountpoint == NULL ) {

      fskit_error("%s", "No mountpoint given\n");
      fuse_opt_free_args(&args);

      return rc;
   }

   state->mountpoint = strdup( mountpoint );

   // mount
   ch = fuse_mount( mountpoint, &args );
   if( ch == NULL ) {

      rc = -errno;
      fskit_error("fuse_mount failed, errno = %d\n", rc );

      fuse_opt_free_args(&args);

      if( rc == 0 ) {
          rc = -EPERM;
      }

      return rc;
   }

   // create the filesystem
   fs = fuse_new( ch, &args, &state->ops, sizeof(state->ops), state );
   fuse_opt_free_args(&args);

   if( fs == NULL ) {

      // failed
      rc = -errno;
      fskit_error("fuse_new failed, errno = %d\n", rc );

      fuse_unmount( mountpoint, ch );

      if( rc == 0 ) {
          rc = -EPERM;
      }

      return rc;
   }

   // daemonize if running in the background
   fskit_debug("FUSE daemonize: foreground=%d\n", foreground);
   rc = fuse_daemonize( foreground );
   if( rc != 0 ) {

      // failed
      fskit_error("fuse_daemonize(%d) rc = %d\n", foreground, rc );

      fuse_unmount( mountpoint, ch );
      fuse_destroy( fs );

      return rc;
   }

   // set up FUSE signal handlers
   rc = fuse_set_signal_handlers( fuse_get_session(fs) );
   if( rc < 0 ) {

      // failed
      fskit_error("fuse_set_signal_handlers rc = %d\n", rc );

      fuse_unmount( mountpoint, ch );
      fuse_destroy( fs );
      return rc;
   }

   // if we have a post-mount callback, call it now, since FUSE is ready to receive requests
   if( state->postmount != NULL ) {

      rc = (*state->postmount)( state, state->postmount_cls );
      if( rc != 0 ) {

         fskit_error("fskit postmount callback rc = %d\n", rc );

         fuse_unmount( mountpoint, ch );
         fuse_destroy( fs );

         return rc;
      }
   }

   // run the filesystem--start processing requests
   fskit_debug("%s", "FUSE main loop entered\n");
   if( multithreaded ) {
      rc = fuse_loop_mt( fs );
   }
   else {
      rc = fuse_loop( fs );
   }

   fskit_debug("%s", "FUSE main loop finished\n");
   fuse_teardown( fs, mountpoint );

   return rc;
}
示例#14
0
int main(int argc, char* argv[])
{
	struct fuse_args mount_args = FUSE_ARGS_INIT(0, NULL);
	struct fuse_args newfs_args = FUSE_ARGS_INIT(0, NULL);
	const char* spec = NULL;
	const char* mount_point = NULL;
	char* mount_options;
	int debug = 0;
	struct fuse_chan* fc = NULL;
	struct fuse* fh = NULL;
	int opt;

	printf("FUSE exfat %u.%u.%u\n",
			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);

	mount_options = strdup(default_options);
	if (mount_options == NULL)
	{
		exfat_error("failed to allocate options string");
		return 1;
	}

	while ((opt = getopt(argc, argv, "dno:Vv")) != -1)
	{
		switch (opt)
		{
		case 'd':
			debug = 1;
			break;
		case 'n':
			break;
		case 'o':
			mount_options = add_option(mount_options, optarg, NULL);
			if (mount_options == NULL)
				return 1;
			break;
		case 'V':
			free(mount_options);
			puts("Copyright (C) 2010-2014  Andrew Nayenko");
			return 0;
		case 'v':
			break;
		default:
			free(mount_options);
			usage(argv[0]);
			break;
		}
	}
	if (argc - optind != 2)
	{
		free(mount_options);
		usage(argv[0]);
	}
	spec = argv[optind];
	mount_point = argv[optind + 1];

	if (exfat_mount(&ef, spec, mount_options) != 0)
	{
		free(mount_options);
		return 1;
	}

	if (ef.ro == -1) /* read-only fallback was used */
	{
		mount_options = add_option(mount_options, "ro", NULL);
		if (mount_options == NULL)
		{
			exfat_unmount(&ef);
			return 1;
		}
	}

	mount_options = add_fuse_options(mount_options, spec);
	if (mount_options == NULL)
	{
		exfat_unmount(&ef);
		return 1;
	}

	/* create arguments for fuse_mount() */
	if (fuse_opt_add_arg(&mount_args, "exfat") != 0 ||
		fuse_opt_add_arg(&mount_args, "-o") != 0 ||
		fuse_opt_add_arg(&mount_args, mount_options) != 0)
	{
		exfat_unmount(&ef);
		free(mount_options);
		return 1;
	}

	free(mount_options);

	/* create FUSE mount point */
	fc = fuse_mount(mount_point, &mount_args);
	fuse_opt_free_args(&mount_args);
	if (fc == NULL)
	{
		exfat_unmount(&ef);
		return 1;
	}

	/* create arguments for fuse_new() */
	if (fuse_opt_add_arg(&newfs_args, "") != 0 ||
		(debug && fuse_opt_add_arg(&newfs_args, "-d") != 0))
	{
		fuse_unmount(mount_point, fc);
		exfat_unmount(&ef);
		return 1;
	}

	/* create new FUSE file system */
	fh = fuse_new(fc, &newfs_args, &fuse_exfat_ops,
			sizeof(struct fuse_operations), NULL);
	fuse_opt_free_args(&newfs_args);
	if (fh == NULL)
	{
		fuse_unmount(mount_point, fc);
		exfat_unmount(&ef);
		return 1;
	}

	/* exit session on HUP, TERM and INT signals and ignore PIPE signal */
	if (fuse_set_signal_handlers(fuse_get_session(fh)) != 0)
	{
		fuse_unmount(mount_point, fc);
		fuse_destroy(fh);
		exfat_unmount(&ef);
		exfat_error("failed to set signal handlers");
		return 1;
	}

	/* go to background (unless "-d" option is passed) and run FUSE
	   main loop */
	if (fuse_daemonize(debug) == 0)
	{
		if (fuse_loop(fh) != 0)
			exfat_error("FUSE loop failure");
	}
	else
		exfat_error("failed to daemonize");

	fuse_remove_signal_handlers(fuse_get_session(fh));
	/* note that fuse_unmount() must be called BEFORE fuse_destroy() */
	fuse_unmount(mount_point, fc);
	fuse_destroy(fh);
	return 0;
}
示例#15
0
int main(int argc, char *argv[])
{
	int ret = -1;
	int lockfd = -1;

	gboolean foreground = FALSE;
	gboolean force_local_mode = FALSE;
	gboolean wrote_pidfile = FALSE;
	memdb_t *memdb = NULL;
	dfsm_t *dcdb = NULL;
	dfsm_t *status_fsm = NULL;

	qb_log_init("pmxcfs", LOG_DAEMON, LOG_DEBUG);
	/* remove default filter */
	qb_log_filter_ctl(QB_LOG_SYSLOG, QB_LOG_FILTER_REMOVE, 
			  QB_LOG_FILTER_FILE, "*", LOG_DEBUG);

 	qb_log_tags_stringify_fn_set(log_tags_stringify);

	qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_TRUE);

	update_qb_log_settings();

	g_set_print_handler(glib_print_handler);
	g_set_printerr_handler(glib_print_handler);
	g_log_set_default_handler(glib_log_handler, NULL);

	GOptionContext *context;

	GOptionEntry entries[] = {
		{ "debug", 'd', 0, G_OPTION_ARG_NONE, &cfs.debug, "Turn on debug messages", NULL },
		{ "foreground", 'f', 0, G_OPTION_ARG_NONE, &foreground, "Do not daemonize server", NULL },
		{ "local", 'l', 0, G_OPTION_ARG_NONE, &force_local_mode, 
		  "Force local mode (ignore cluster.conf, force quorum)", NULL },
		{ NULL },
	};

	context = g_option_context_new ("");
	g_option_context_add_main_entries (context, entries, NULL);

	GError *err = NULL;
	if (!g_option_context_parse (context, &argc, &argv, &err))
	{
		cfs_critical("option parsing failed: %s", err->message);
		g_error_free (err);
		qb_log_fini();
		exit (1);
	}
	g_option_context_free(context);

	if (optind < argc) {
		cfs_critical("too many arguments");
		qb_log_fini();
		exit(-1);
	}

	if (cfs.debug) {
		update_qb_log_settings();
	}

	struct utsname utsname;
	if (uname(&utsname) != 0) {
		cfs_critical("Unable to read local node name");
		qb_log_fini();
		exit (-1);
	}
	
	for (int i=0; i < sizeof(utsname.nodename); i++) {
		if (utsname.nodename[i] =='.') utsname.nodename[i] = 0;
	}

	cfs.nodename = g_strdup(utsname.nodename);

	if (!(cfs.ip = lookup_node_ip(cfs.nodename))) { 
		cfs_critical("Unable to get local IP address");
		qb_log_fini();
		exit(-1);
	}

	struct group *www_data = getgrnam("www-data");
	if (!www_data) {
		cfs_critical("Unable to get www-data group ID");
		qb_log_fini();
		exit (-1);
	}
	cfs.gid = www_data->gr_gid;

	g_thread_init(NULL);

	umask(027);

	mkdir(VARLIBDIR, 0755);

	if ((lockfd = open(LOCKFILE, O_RDWR|O_CREAT|O_APPEND)) == -1) {
		cfs_critical("unable to create lock '%s': %s", LOCKFILE, strerror (errno));
		goto err;
	}

	for (int i = 10; i >= 0; i--) {
		if (flock(lockfd, LOCK_EX|LOCK_NB) != 0) {
			if (!i) {
				cfs_critical("unable to aquire pmxcfs lock: %s", strerror (errno));
				goto err;
			}
			if (i == 10)
				cfs_message("unable to aquire pmxcfs lock - trying again");

			sleep(1);
		}
	}

	cfs_status_init();

	gboolean create = !g_file_test(DBFILENAME, G_FILE_TEST_EXISTS);

	if (!(memdb = memdb_open (DBFILENAME))) {
		cfs_critical("memdb_open failed - unable to open database '%s'", DBFILENAME);
		goto err;
	}

	// automatically import cluster.conf from host
	if (create && !force_local_mode) {
		char *cdata = NULL;
		gsize clen = 0;
		if (g_file_get_contents(HOST_CLUSTER_CONF_FN, &cdata, &clen, NULL)) {

			guint32 mtime = time(NULL);

			memdb_create(memdb, "/cluster.conf", 0, mtime);
			if (memdb_write(memdb, "/cluster.conf", 0, mtime, cdata, clen, 0, 1) < 0) {
				cfs_critical("memdb_write failed - unable to import cluster.conf");
				goto err;
			}
		}
	}

	// does cluster.conf exist?
	gpointer conf_data = NULL;
	int len = memdb_read(memdb, "cluster.conf", &conf_data);
	if (len >= 0) {
		if (force_local_mode) {
			cfs_message("forcing local mode (althought cluster.conf exists)");
			cfs_set_quorate(1, TRUE);
		} else {
			if (!(dcdb = dcdb_new(memdb)))
				goto err;
			dcdb_sync_cluster_conf(memdb, 1);
		}
	} else {
		cfs_debug("using local mode (cluster.conf does not exist)");
		cfs_set_quorate(1, TRUE);
	}
	if (conf_data) g_free(conf_data);

	cfs_plug_memdb_t *config = cfs_plug_memdb_new("memdb", memdb, dcdb);
	
	cfs_plug_base_t *bplug = cfs_plug_base_new("", (cfs_plug_t *)config);

	create_symlinks(bplug, cfs.nodename);

	root_plug = (cfs_plug_t *)bplug;

	system("umount -f " CFSDIR " >/dev/null 2>&1");

	char *fa[] = { "-f", "-odefault_permissions", "-oallow_other", NULL};

	struct fuse_args fuse_args = FUSE_ARGS_INIT(sizeof (fa)/sizeof(gpointer) - 1, fa); 
	
	struct fuse_chan *fuse_chan = fuse_mount(CFSDIR, &fuse_args);
	if (!fuse_chan) {
		cfs_critical("fuse_mount error: %s", strerror(errno));
		goto err;
	}

	if (!(fuse = fuse_new(fuse_chan, &fuse_args, &fuse_ops, sizeof(fuse_ops), NULL))) {
		cfs_critical("fuse_new error: %s", strerror(errno));
		goto err;
	}

	fuse_set_signal_handlers(fuse_get_session(fuse));

	if (!foreground) {
		pid_t cpid = fork();

		if (cpid == -1) {
			cfs_critical("failed to daemonize program - %s", strerror (errno));
			goto err;
		} else if (cpid) {
			write_pidfile(cpid);
			qb_log_fini();
			_exit (0);
		} else {
			int nullfd;

			chroot("/");

			if ((nullfd = open("/dev/null", O_RDWR, 0)) != -1) {
				dup2(nullfd, 0);
				dup2(nullfd, 1);
				dup2(nullfd, 2);
				if (nullfd > 2)
					close (nullfd);
			}

			// do not print to the console after this point
			qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_FALSE);

			setsid();
		}
	} else {
		write_pidfile(getpid());
	}

	wrote_pidfile = TRUE;

	cfs_loop_t *corosync_loop = cfs_loop_new(fuse);

	cfs_service_t *service_quorum = NULL;
	cfs_service_t *service_confdb = NULL;
	cfs_service_t *service_dcdb = NULL;
	cfs_service_t *service_status = NULL;

	if (dcdb) {

		service_quorum = service_quorum_new();

		cfs_loop_add_service(corosync_loop, service_quorum, QB_LOOP_HIGH);

		service_confdb = service_confdb_new();

		cfs_loop_add_service(corosync_loop, service_confdb, QB_LOOP_MED);

		service_dcdb = service_dfsm_new(dcdb);
		cfs_service_set_timer(service_dcdb, DCDB_VERIFY_TIME);

		cfs_loop_add_service(corosync_loop, service_dcdb, QB_LOOP_MED);

		status_fsm = cfs_status_dfsm_new();
		service_status = service_dfsm_new(status_fsm);

		cfs_loop_add_service(corosync_loop, service_status, QB_LOOP_LOW);

	}

	cfs_loop_start_worker(corosync_loop);

	server_start(memdb);

	ret = fuse_loop_mt(fuse);

	cfs_message("teardown filesystem");

	server_stop();

	fuse_unmount(CFSDIR, fuse_chan);

	fuse_destroy(fuse);

	cfs_debug("set stop event loop flag");

	cfs_loop_stop_worker(corosync_loop);

	cfs_loop_destroy(corosync_loop);

	cfs_debug("worker finished");

	if (service_dcdb)
		service_dfsm_destroy(service_dcdb);

	if (service_confdb)
		service_confdb_destroy(service_confdb);

	if (service_quorum)
		service_quorum_destroy(service_quorum);

	if (service_status)
		service_dfsm_destroy(service_status);

	sleep(1); /* do not restart too fast */
 ret:

	if (status_fsm) 
		dfsm_destroy(status_fsm);

	if (dcdb)
		dfsm_destroy(dcdb);

	if (memdb) 
		memdb_close(memdb);

	if (wrote_pidfile)
		unlink(CFS_PID_FN);

	cfs_message("exit proxmox configuration filesystem (%d)", ret);

	cfs_status_cleanup();

	qb_log_fini();

	exit(ret);

 err:
	goto ret;
}
/*
 * Class:     org_catacombae_jfuse_FUSE
 * Method:    mountNative26
 * Signature: (Lorg/catacombae/jfuse/FUSE26FileSystem;Ljava/lang/String;[Ljava/lang/String;Lorg/catacombae/jfuse/FUSE26Capabilities;Lorg/catacombae/jfuse/MacFUSE20Capabilities;)Z
 */
JNIEXPORT jboolean JNICALL Java_org_catacombae_jfuse_FUSE_mountNative26(
        JNIEnv *env, jclass cls, jobject fileSystem, jstring mountPoint,
        jobjectArray optionStrings, jobject fuseCapabilities,
        jobject macFuseCapabilities) {
#define _FNAME_ "Java_org_catacombae_jfuse_FUSE_mountNative26"
    CSLogTraceEnter(_FNAME_ "(%p, %p, %p, %p, %p, %p, %p)", env, cls,
            fileSystem, mountPoint, optionStrings, fuseCapabilities,
            macFuseCapabilities);

    jboolean res = JNI_FALSE;

    jFUSEContext *context = new jFUSEContext(env, fileSystem);

    if(!fillFUSE26Operations(env, fuseCapabilities, &jfuse_operations))
        CSPanicWithMessage("Could not fill FUSE 2.6 operations!");
    else
        CSLogDebug("Filled FUSE 2.6 operations.");

    if(jfuse_operations.init != NULL) {
        context->setInitEnabled(true);
    }

#if defined(__APPLE__) || defined(__DARWIN__)
#if (__FreeBSD__ >= 10)
    if(macFuseCapabilities != NULL) {
        if(!fillMacFUSE20Operations(env, macFuseCapabilities,
                &jfuse_operations))
            CSPanicWithMessage("Could not fill MacFUSE 2.0 operations!");
        else {
            CSLogDebug("Filled MacFUSE 2.0 operations.");
            if(jfuse_operations.getxtimes != NULL ||
                    jfuse_operations.setbkuptime != NULL ||
                    jfuse_operations.setcrtime != NULL ||
                    jfuse_operations.setchgtime != NULL) {
                CSLogDebug("Requesting enabling of xtimes.");
                context->setXtimesEnabled(true);
                if(jfuse_operations.init == NULL) {
                    CSLogDebug("Adding operation 'init' to fuse_operations for "
                            "support enabling of xtimes...");
                    jfuse_operations.init = jfuse_init;
                }
            }
        }
    }
    else
        CSLogDebug("No MacFUSE 2.0 operations to fill.");
#endif /*__FreeBSD__ >= 10 */
#endif /* defined(__APPLE__) || defined(__DARWIN__) */

    /* Read mountpoint. */
    jboolean isCopy;
    const char *utf8MountPoint = env->GetStringUTFChars(mountPoint, &isCopy);

    /* Read options. */
    struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
    if(fuse_opt_add_arg(&args, utf8MountPoint) != 0)
        CSPanicWithMessage("fuse_opt_add_arg failed unexpectedly.");

    jsize optionStringsLength = env->GetArrayLength(optionStrings);
    CSLogDebug("Reading option strings (length=%ld)...", (long)optionStringsLength);
    for(int i = 0; i < optionStringsLength; ++i) {
        jstring cur = (jstring)env->GetObjectArrayElement(optionStrings, i);
        const char *utfChars = env->GetStringUTFChars(cur, NULL);

        CSLogDebug("  Adding option %d: \"%s\"", i, utfChars);
        int addArgRetval = fuse_opt_add_arg(&args, utfChars);
        if(addArgRetval != 0)
            CSPanicWithMessage("fuse_opt_add_arg failed unexpectedly with "
                    "retval=%d, errno: %d (%s)", addArgRetval, errno,
                    strerror(errno));

        env->ReleaseStringUTFChars(cur, utfChars);
        env->DeleteLocalRef(cur);
    }

    if(fuse_parse_cmdline(&args, NULL, NULL, NULL) != 0)
        CSLogError("fuse_parse_cmdline didn't return 0.");
    else {
        /*
         * FUSE regular mount procedure:
         *
         * Init:
         * - fuse_mount:
         *     (char *mountpoint, struct fuse_args *args)-> (struct fuse_chan*)
         * - fuse_new:
         *     (struct fuse_chan *ch, struct fuse_args *args,
         *      struct fuse_operations *op, size_t op_size, void *user_data)
         *     ->(struct fuse*)
         * Running:
         * - fuse_loop / fuse_loop_mt:
         *     (struct fuse*)->(int)
         *   Main loop, running until file system is unmounted.
         * Cleanup:
         * - fuse_unmount:
         *     (char *mountpoint, struct fuse_chan *ch)->(void)
         * - fuse_destroy:
         *     (struct fuse* f)->(void)
         *
         *
         * FUSE lowlevel mount procedure:
         *
         * Init:
         * - fuse_mount:
         *     (char *mountpoint, struct fuse_args *args)->(struct fuse_chan*)
         * - fuse_lowlevel_new:
         *     (struct fuse_args *args, struct fuse_lowlevel_ops *op,
         *       size_t op_size, void *userdata) -> (struct fuse_session*)
         * - fuse_session_add_chan:
         *     (struct fuse_session *se, struct fuse_chan *ch)->(void)
         * Running:
         * - fuse_session_loop / fuse_session_loop_mt:
         *     (struct fuse_session *se)->(int)
         * Cleanup:
         * - fuse_session_remove_chan:
         *     (struct fuse_chan *ch)->(void)
         * - fuse_session_destroy:
         *     (struct fuse_session *se)->(void)
         * - fuse_unmount:
         *     (char *mountpoint, struct fuse_chan *ch)->(void)
         */
        fuse_chan *chan = NULL;
        fuse *fh = NULL;

        CSLogDebug("Invoking fuse_mount...");
        chan = fuse_mount(utf8MountPoint, &args);
        CSLogDebug("   done. result=%p", chan);
        if(chan != NULL) {
            CSLogDebug("Invoking fuse_new...");
            fh = fuse_new(chan, &args, &jfuse_operations,
                    sizeof (jfuse_operations), context);
            CSLogDebug("   done. result=%p", fh);
            if(fh != NULL) {
#if defined(__NetBSD__)
	        int sighandler_res = 0;
#else
                int sighandler_res =
		  fuse_set_signal_handlers(fuse_get_session(fh));
#endif /* defined(__NetBSD__) */
		if(sighandler_res == 0) {
                    CSLogDebug("Invoking fuse_loop...");
                    int fuseLoopRetval = fuse_loop(fh);
                    CSLogDebug("  done. result=%d", fuseLoopRetval);
                    if(fuseLoopRetval != 0)
                        CSLogError("fuse_loop exited with a non-zero value: %d "
                            "(errno is %d (%s)", fuseLoopRetval, errno,
                            strerror(errno));
                    else
                        res = JNI_TRUE;

#if !defined(__NetBSD__)
                    fuse_remove_signal_handlers(fuse_get_session(fh));
#endif
                }
                else
                    CSLogError("Couldn't set signal handlers!");
            }
            else
                CSLogError("fuse_new exited with an error. (errno is %d (%s))",
                    errno, strerror(errno));
        }
        else
            CSLogError("fuse_mount exited with an error. (errno is %d (%s))",
                errno, strerror(errno));

        fuse_opt_free_args(&args);

        if(chan != NULL) {
            CSLogDebug("Unmounting \"%s\"... (chan=%p)", utf8MountPoint, chan);
            fuse_unmount(utf8MountPoint, chan);
        }
        if(fh != NULL) {
            CSLogDebug("Destroying fuse filehandle %p...", fh);
            fuse_destroy(fh);
        }

        delete context;
    }

    CSLogTraceLeave(_FNAME_ "(%p, %p, %p, %p, %p, %p, %p): %d", env, cls,
            fileSystem, mountPoint, optionStrings, fuseCapabilities,
            macFuseCapabilities, res);
    return res;
#undef _FNAME_
}