mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-12 13:30:10 -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FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this.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.
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 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 published
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by the Free Software Foundation; either version 2.1 of the License,
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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 License
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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 <pulsecore/flist.h>
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#include <pulse/fork-detect.h>
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#include "internal.h"
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#include "operation.h"
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PA_STATIC_FLIST_DECLARE(operations, 0, pa_xfree);
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pa_operation *pa_operation_new(pa_context *c, pa_stream *s, pa_operation_cb_t cb, void *userdata) {
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pa_operation *o;
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pa_assert(c);
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if (!(o = pa_flist_pop(PA_STATIC_FLIST_GET(operations))))
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o = pa_xnew(pa_operation, 1);
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pa_zero(*o);
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PA_REFCNT_INIT(o);
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o->context = c;
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o->stream = s;
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o->state = PA_OPERATION_RUNNING;
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o->callback = cb;
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o->userdata = userdata;
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/* Refcounting is strictly one-way: from the "bigger" to the "smaller" object. */
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PA_LLIST_PREPEND(pa_operation, c->operations, o);
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pa_operation_ref(o);
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return o;
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}
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pa_operation *pa_operation_ref(pa_operation *o) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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PA_REFCNT_INC(o);
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return o;
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}
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void pa_operation_unref(pa_operation *o) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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if (PA_REFCNT_DEC(o) <= 0) {
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pa_assert(!o->context);
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pa_assert(!o->stream);
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if (pa_flist_push(PA_STATIC_FLIST_GET(operations), o) < 0)
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pa_xfree(o);
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}
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}
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static void operation_unlink(pa_operation *o) {
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pa_assert(o);
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if (o->context) {
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pa_assert(PA_REFCNT_VALUE(o) >= 2);
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PA_LLIST_REMOVE(pa_operation, o->context->operations, o);
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pa_operation_unref(o);
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o->context = NULL;
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}
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o->stream = NULL;
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o->callback = NULL;
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o->userdata = NULL;
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o->state_callback = NULL;
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o->state_userdata = NULL;
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}
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static void operation_set_state(pa_operation *o, pa_operation_state_t st) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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if (st == o->state)
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return;
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pa_operation_ref(o);
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o->state = st;
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if (o->state_callback)
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o->state_callback(o, o->state_userdata);
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if ((o->state == PA_OPERATION_DONE) || (o->state == PA_OPERATION_CANCELED))
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operation_unlink(o);
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pa_operation_unref(o);
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}
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void pa_operation_cancel(pa_operation *o) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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operation_set_state(o, PA_OPERATION_CANCELED);
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}
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void pa_operation_done(pa_operation *o) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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operation_set_state(o, PA_OPERATION_DONE);
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}
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pa_operation_state_t pa_operation_get_state(pa_operation *o) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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return o->state;
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}
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void pa_operation_set_state_callback(pa_operation *o, pa_operation_notify_cb_t cb, void *userdata) {
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pa_assert(o);
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pa_assert(PA_REFCNT_VALUE(o) >= 1);
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if (pa_detect_fork())
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return;
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if (o->state == PA_OPERATION_DONE || o->state == PA_OPERATION_CANCELED)
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return;
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o->state_callback = cb;
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o->state_userdata = userdata;
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}
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