mpd/src/idle.c
Marc Pavot 0bad84066b command: allow clients to subscribe to specific idle events
The client may provide the names of idle events as arguments to the
"idle" command to inform MPD that it is only interested in these
events.
2008-11-22 13:26:21 +01:00

75 lines
1.6 KiB
C

/* the Music Player Daemon (MPD)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Support library for the "idle" command.
*
*/
#include "idle.h"
#include "main_notify.h"
#include <assert.h>
#include <pthread.h>
static unsigned idle_flags;
static pthread_mutex_t idle_mutex = PTHREAD_MUTEX_INITIALIZER;
static const char *const idle_names[] = {
"database",
"stored_playlist",
"playlist",
"player",
"mixer",
"output",
"options",
"elapsed",
NULL
};
void
idle_add(unsigned flags)
{
assert(flags != 0);
pthread_mutex_lock(&idle_mutex);
idle_flags |= flags;
pthread_mutex_unlock(&idle_mutex);
wakeup_main_task();
}
unsigned
idle_get(void)
{
unsigned flags;
pthread_mutex_lock(&idle_mutex);
flags = idle_flags;
idle_flags = 0;
pthread_mutex_unlock(&idle_mutex);
return flags;
}
const char*const*
idle_get_names(void)
{
return idle_names;
}