mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-03 09:01:50 -05:00
5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <pulse/xmalloc.h>
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#include <pulsecore/macro.h>
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#include "hook-list.h"
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void pa_hook_init(pa_hook *hook, void *data) {
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pa_assert(hook);
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PA_LLIST_HEAD_INIT(pa_hook_slot, hook->slots);
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hook->n_dead = hook->n_firing = 0;
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hook->data = data;
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}
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static void slot_free(pa_hook *hook, pa_hook_slot *slot) {
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pa_assert(hook);
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pa_assert(slot);
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PA_LLIST_REMOVE(pa_hook_slot, hook->slots, slot);
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pa_xfree(slot);
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}
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void pa_hook_done(pa_hook *hook) {
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pa_assert(hook);
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pa_assert(hook->n_firing == 0);
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while (hook->slots)
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slot_free(hook, hook->slots);
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pa_hook_init(hook, NULL);
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}
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pa_hook_slot* pa_hook_connect(pa_hook *hook, pa_hook_priority_t prio, pa_hook_cb_t cb, void *data) {
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pa_hook_slot *slot, *where, *prev;
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pa_assert(cb);
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slot = pa_xnew(pa_hook_slot, 1);
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slot->hook = hook;
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slot->dead = false;
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slot->callback = cb;
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slot->data = data;
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slot->priority = prio;
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prev = NULL;
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for (where = hook->slots; where; where = where->next) {
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if (prio < where->priority)
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break;
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prev = where;
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}
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PA_LLIST_INSERT_AFTER(pa_hook_slot, hook->slots, prev, slot);
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return slot;
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}
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void pa_hook_slot_free(pa_hook_slot *slot) {
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pa_assert(slot);
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pa_assert(!slot->dead);
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if (slot->hook->n_firing > 0) {
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slot->dead = true;
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slot->hook->n_dead++;
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} else
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slot_free(slot->hook, slot);
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}
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pa_hook_result_t pa_hook_fire(pa_hook *hook, void *data) {
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pa_hook_slot *slot, *next;
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pa_hook_result_t result = PA_HOOK_OK;
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pa_assert(hook);
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hook->n_firing ++;
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PA_LLIST_FOREACH(slot, hook->slots) {
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if (slot->dead)
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continue;
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if ((result = slot->callback(hook->data, data, slot->data)) != PA_HOOK_OK)
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break;
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}
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hook->n_firing --;
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pa_assert(hook->n_firing >= 0);
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for (slot = hook->slots; hook->n_dead > 0 && slot; slot = next) {
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next = slot->next;
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if (slot->dead) {
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slot_free(hook, slot);
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hook->n_dead--;
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}
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}
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pa_assert(hook->n_dead == 0);
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return result;
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}
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bool pa_hook_is_firing(pa_hook *hook) {
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pa_assert(hook);
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return hook->n_firing > 0;
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}
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