46bab7e4b9
This change adds two configuration options: --with-eventloop=[glib|internal|auto] --with-pollmethod=[epoll|auto] First allows switching between GLib event loop and internal one. Second chooses backend to use for internal event loop. Conditional compilation symbols are changed accordingly. Additional helper macro MPD_OPTIONAL_FUNC_NODEF is added as well.
94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
/*
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* Copyright (C) 2003-2013 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_SOCKET_IDLE_MONITOR_HXX
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#define MPD_SOCKET_IDLE_MONITOR_HXX
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#include "check.h"
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#ifdef USE_GLIB_EVENTLOOP
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#include <glib.h>
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#endif
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class EventLoop;
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/**
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* An event that runs when the EventLoop has become idle, before
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* waiting for more events. This class is not thread-safe; all
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* methods must be run from EventLoop's thread.
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*/
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class IdleMonitor {
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#ifdef USE_INTERNAL_EVENTLOOP
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friend class EventLoop;
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#endif
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EventLoop &loop;
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#ifdef USE_INTERNAL_EVENTLOOP
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bool active;
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#endif
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#ifdef USE_GLIB_EVENTLOOP
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guint source_id;
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#endif
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public:
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#ifdef USE_INTERNAL_EVENTLOOP
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IdleMonitor(EventLoop &_loop)
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:loop(_loop), active(false) {}
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#endif
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#ifdef USE_GLIB_EVENTLOOP
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IdleMonitor(EventLoop &_loop)
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:loop(_loop), source_id(0) {}
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#endif
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~IdleMonitor() {
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Cancel();
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}
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EventLoop &GetEventLoop() const {
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return loop;
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}
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bool IsActive() const {
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#ifdef USE_INTERNAL_EVENTLOOP
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return active;
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#endif
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#ifdef USE_GLIB_EVENTLOOP
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return source_id != 0;
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#endif
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}
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void Schedule();
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void Cancel();
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protected:
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virtual void OnIdle() = 0;
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private:
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void Run();
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#ifdef USE_GLIB_EVENTLOOP
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static gboolean Callback(gpointer data);
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#endif
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};
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#endif /* MAIN_NOTIFY_H */
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