1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/libfsserver/include/fsserver/file_notifier_registry.h Fri Sep 10 23:16:41 2021 +0200
1.3 @@ -0,0 +1,59 @@
1.4 +/*
1.5 + * A registry of objects supporting notifications.
1.6 + *
1.7 + * Copyright (C) 2021 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#pragma once
1.26 +
1.27 +#include <map>
1.28 +#include <mutex>
1.29 +
1.30 +#include <fsserver/file_notification.h>
1.31 +#include <mem/types.h>
1.32 +
1.33 +
1.34 +
1.35 +/* Mapping type from file identifiers to notification managers. */
1.36 +
1.37 +typedef std::map<fileid_t, FileNotification *> FileNotifiers;
1.38 +typedef std::map<fileid_t, FileNotification *> FileNotifierEntry;
1.39 +
1.40 +
1.41 +
1.42 +/* A registry of directory access objects. */
1.43 +
1.44 +class FileNotifierRegistry
1.45 +{
1.46 +protected:
1.47 + FileNotifiers _notifiers;
1.48 + std::mutex _lock;
1.49 +
1.50 + FileNotification *_get(fileid_t fileid);
1.51 +
1.52 +public:
1.53 + explicit FileNotifierRegistry();
1.54 +
1.55 + void attach(fileid_t fileid);
1.56 +
1.57 + void detach(fileid_t fileid);
1.58 +
1.59 + FileNotification *get(fileid_t fileid);
1.60 +};
1.61 +
1.62 +// vim: tabstop=4 expandtab shiftwidth=4