ClientIdle.cxx 1.76 KB
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/*
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 * Copyright (C) 2003-2013 The Music Player Daemon Project
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 * 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.
 */

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#include "config.h"
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#include "ClientInternal.hxx"
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#include "Idle.hxx"
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#include <assert.h>

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void
Client::IdleNotify()
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{
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	assert(idle_waiting);
	assert(idle_flags != 0);
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	unsigned flags = idle_flags;
	idle_flags = 0;
	idle_waiting = false;
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	const char *const*idle_names = idle_get_names();
	for (unsigned i = 0; idle_names[i]; ++i) {
		if (flags & (1 << i) & idle_subscriptions)
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			client_printf(*this, "changed: %s\n",
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				      idle_names[i]);
	}

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	client_puts(*this, "OK\n");
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	TimeoutMonitor::ScheduleSeconds(client_timeout);
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}

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void
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Client::IdleAdd(unsigned flags)
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{
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	if (IsExpired())
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		return;

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	idle_flags |= flags;
	if (idle_waiting && (idle_flags & idle_subscriptions))
		IdleNotify();
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}

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bool
Client::IdleWait(unsigned flags)
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{
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	assert(!idle_waiting);
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	idle_waiting = true;
	idle_subscriptions = flags;
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	if (idle_flags & idle_subscriptions) {
		IdleNotify();
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		return true;
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	} else {
		/* disable timeouts while in "idle" */
		TimeoutMonitor::Cancel();
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		return false;
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	}
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}