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Diffstat (limited to '')
-rw-r--r-- | src/db/update/InotifySource.hxx | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/db/update/InotifySource.hxx b/src/db/update/InotifySource.hxx new file mode 100644 index 000000000..77c11093c --- /dev/null +++ b/src/db/update/InotifySource.hxx @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2003-2014 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPD_INOTIFY_SOURCE_HXX +#define MPD_INOTIFY_SOURCE_HXX + +#include "event/SocketMonitor.hxx" +#include "util/FifoBuffer.hxx" + +class Error; + +typedef void (*mpd_inotify_callback_t)(int wd, unsigned mask, + const char *name, void *ctx); + +class InotifySource final : private SocketMonitor { + mpd_inotify_callback_t callback; + void *callback_ctx; + + FifoBuffer<uint8_t, 4096> buffer; + + InotifySource(EventLoop &_loop, + mpd_inotify_callback_t callback, void *ctx, int fd); + +public: + ~InotifySource() { + Close(); + } + + /** + * Creates a new inotify source and registers it in the GLib main + * loop. + * + * @param a callback invoked for events received from the kernel + */ + static InotifySource *Create(EventLoop &_loop, + mpd_inotify_callback_t callback, + void *ctx, + Error &error); + + /** + * Adds a path to the notify list. + * + * @return a watch descriptor or -1 on error + */ + int Add(const char *path_fs, unsigned mask, Error &error); + + /** + * Removes a path from the notify list. + * + * @param wd the watch descriptor returned by mpd_inotify_source_add() + */ + void Remove(unsigned wd); + +private: + virtual bool OnSocketReady(unsigned flags) override; +}; + +#endif |