• Max Kellermann's avatar
    idle: added "update" event · d4914fc9
    Max Kellermann authored
    Some clients have visual feedback for "database update is running".
    Using the "database" idle event is unreliable, because it is only
    emitted when the database was actually modified.  This patch adds the
    "update" event, which is emitted when the update is started, and again
    when the update is finished, disregarding whether it has been
    modified.
    d4914fc9
idle.c 1.73 KB
/*
 * Copyright (C) 2003-2009 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.
 */

/*
 * Support library for the "idle" command.
 *
 */

#include "idle.h"
#include "event_pipe.h"

#include <assert.h>
#include <glib.h>

static unsigned idle_flags;
static GMutex *idle_mutex = NULL;

static const char *const idle_names[] = {
	"database",
	"stored_playlist",
	"playlist",
	"player",
	"mixer",
	"output",
	"options",
	"sticker",
	"update",
        NULL
};

void
idle_init(void)
{
	g_assert(idle_mutex == NULL);
	idle_mutex = g_mutex_new();
}

void
idle_deinit(void)
{
	g_assert(idle_mutex != NULL);
	g_mutex_free(idle_mutex);
	idle_mutex = NULL;
}

void
idle_add(unsigned flags)
{
	assert(flags != 0);

	g_mutex_lock(idle_mutex);
	idle_flags |= flags;
	g_mutex_unlock(idle_mutex);

	event_pipe_emit(PIPE_EVENT_IDLE);
}

unsigned
idle_get(void)
{
	unsigned flags;

	g_mutex_lock(idle_mutex);
	flags = idle_flags;
	idle_flags = 0;
	g_mutex_unlock(idle_mutex);

	return flags;
}

const char*const*
idle_get_names(void)
{
        return idle_names;
}