70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
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* Copyright 2003-2020 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_INOTIFY_SOURCE_HXX
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#define MPD_INOTIFY_SOURCE_HXX
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#include "event/SocketMonitor.hxx"
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typedef void (*mpd_inotify_callback_t)(int wd, unsigned mask,
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const char *name, void *ctx);
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class InotifySource final : private SocketMonitor {
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mpd_inotify_callback_t callback;
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void *callback_ctx;
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public:
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/**
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* Creates a new inotify source and registers it in the
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* #EventLoop.
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*
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* Throws #std::system_error on error.
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*
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* @param callback a callback invoked for events received from
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* the kernel
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*/
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InotifySource(EventLoop &_loop,
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mpd_inotify_callback_t callback, void *ctx);
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~InotifySource() noexcept {
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Close();
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}
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/**
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* Adds a path to the notify list.
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*
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* Throws #std::system_error on error.
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*
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* @return a watch descriptor
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*/
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int Add(const char *path_fs, unsigned mask);
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/**
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* Removes a path from the notify list.
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*
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* @param wd the watch descriptor returned by mpd_inotify_source_add()
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*/
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void Remove(unsigned wd) noexcept;
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private:
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bool OnSocketReady(unsigned flags) noexcept override;
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};
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#endif
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