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Merge pipewire-pulseaudio subtree

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Arun Raghavan 2019-11-03 15:20:57 +01:00
commit 37a72b2531
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114
pipewire-pulseaudio/src/mainloop-signal.c Normal file
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/* PipeWire
* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <errno.h>
#include <spa/utils/list.h>
#include <spa/support/loop.h>
#include <pipewire/log.h>
#include <pipewire/loop.h>
#include <pulse/mainloop-signal.h>
#include "internal.h"
static pa_mainloop_api *api = NULL;
static struct spa_list signals;
static struct pw_loop *loop = NULL;
struct pa_signal_event {
struct spa_list link;
struct spa_source *source;
pa_signal_cb_t callback;
pa_signal_destroy_cb_t destroy;
void *userdata;
};
SPA_EXPORT
int pa_signal_init(pa_mainloop_api *a)
{
pa_assert(a);
pa_assert(!api);
api = a;
spa_list_init(&signals);
loop = a->userdata;
return 0;
}
SPA_EXPORT
void pa_signal_done(void)
{
pa_signal_event *ev, *t;
pa_assert(api);
spa_list_for_each_safe(ev, t, &signals, link)
pa_signal_free(ev);
spa_list_init(&signals);
api = NULL;
}
static void source_signal_func (void *data, int signal_number)
{
pa_signal_event *ev = data;
if (ev->callback)
ev->callback(api, ev, signal_number, ev->userdata);
}
SPA_EXPORT
pa_signal_event* pa_signal_new(int sig, pa_signal_cb_t callback, void *userdata)
{
pa_signal_event *ev;
pa_assert(sig > 0);
pa_assert(callback);
ev = calloc(1, sizeof(pa_signal_event));
ev->source = spa_loop_utils_add_signal(loop->utils, sig, source_signal_func, ev);
ev->callback = callback;
ev->userdata = userdata;
spa_list_append(&signals, &ev->link);
return ev;
}
SPA_EXPORT
void pa_signal_free(pa_signal_event *e)
{
pa_assert(e);
spa_list_remove(&e->link);
spa_loop_utils_destroy_source(loop->utils, e->source);
if (e->destroy)
e->destroy(api, e, e->userdata);
free(e);
}
SPA_EXPORT
void pa_signal_set_destroy(pa_signal_event *e, pa_signal_destroy_cb_t callback)
{
pa_assert(e);
e->destroy = callback;
}