7 This file is part of PulseAudio.
9 Copyright 2004-2006 Lennart Poettering
11 PulseAudio is free software; you can redistribute it and/or modify
12 it under the terms of the GNU Lesser General Public License as
13 published by the Free Software Foundation; either version 2.1 of the
14 License, or (at your option) any later version.
16 PulseAudio is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 Lesser General Public License for more details.
21 You should have received a copy of the GNU Lesser General Public
22 License along with PulseAudio; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 typedef struct pa_queue pa_queue;
29 /* A simple implementation of the abstract data type queue. Stores
30 * pointers as members. The memory has to be managed by the caller. */
32 pa_queue* pa_queue_new(void);
34 /* Free the queue and run the specified callback function for every remaining entry. The callback function may be NULL. */
35 void pa_queue_free(pa_queue* q, void (*destroy)(void *p, void *userdata), void *userdata);
37 void pa_queue_push(pa_queue *q, void *p);
38 void* pa_queue_pop(pa_queue *q);
40 int pa_queue_is_empty(pa_queue *q);