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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
PulseAudio 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <pulse/xmalloc.h>
#include <pulse/gccmacro.h>
#include <pulsecore/macro.h>
#include "mainloop-api.h"
struct once_info {
void (*callback)(pa_mainloop_api*m, void *userdata);
void *userdata;
};
static void once_callback(pa_mainloop_api *m, pa_defer_event *e, void *userdata) {
struct once_info *i = userdata;
pa_assert(m);
pa_assert(i);
pa_assert(i->callback);
i->callback(m, i->userdata);
pa_assert(m->defer_free);
m->defer_free(e);
}
static void free_callback(pa_mainloop_api *m, PA_GCC_UNUSED pa_defer_event *e, void *userdata) {
struct once_info *i = userdata;
pa_assert(m);
pa_assert(i);
pa_xfree(i);
}
void pa_mainloop_api_once(pa_mainloop_api* m, void (*callback)(pa_mainloop_api *m, void *userdata), void *userdata) {
struct once_info *i;
pa_defer_event *e;
pa_assert(m);
pa_assert(callback);
i = pa_xnew(struct once_info, 1);
i->callback = callback;
i->userdata = userdata;
pa_assert(m->defer_new);
pa_assert_se(e = m->defer_new(m, once_callback, i));
m->defer_set_destroy(e, free_callback);
}
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