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https://gitlab.freedesktop.org/pipewire/pipewire.git
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5feedbfd42
Make sure we are watching the registry before we try to enumerate objects. When we wait for new object info, resync the pending operations because they might depend on the info.
165 lines
3.6 KiB
C
165 lines
3.6 KiB
C
/* PipeWire
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* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <errno.h>
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#include <spa/utils/list.h>
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#include <pipewire/log.h>
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#include <pulse/operation.h>
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#include "internal.h"
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pa_operation *pa_operation_new(pa_context *c, pa_stream *s, pa_operation_cb_t cb, size_t userdata_size) {
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pa_operation *o;
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pa_assert(c);
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o = calloc(1, sizeof(pa_operation) + userdata_size);
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o->refcount = 1;
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o->context = c;
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o->stream = s ? pa_stream_ref(s) : NULL;
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o->seq = SPA_ID_INVALID;
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o->state = PA_OPERATION_RUNNING;
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o->callback = cb;
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o->userdata = SPA_MEMBER(o, sizeof(pa_operation), void);
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spa_list_append(&c->operations, &o->link);
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pa_operation_ref(o);
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pw_log_debug("new %p", o);
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return o;
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}
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int pa_operation_sync(pa_operation *o)
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{
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pa_context *c = o->context;
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o->seq = pw_core_sync(c->core, PW_ID_CORE, 0);
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pw_log_debug("operation %p: sync %d", o, o->seq);
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return 0;
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}
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SPA_EXPORT
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pa_operation *pa_operation_ref(pa_operation *o)
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{
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pa_assert(o);
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pa_assert(o->refcount >= 1);
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o->refcount++;
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return o;
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}
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static void operation_free(pa_operation *o)
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{
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pa_assert(!o->context);
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pa_assert(!o->stream);
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pw_log_debug("%p %d", o, o->seq);
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free(o);
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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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pw_log_debug("%p %d", o, o->seq);
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if (o->context) {
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pa_assert(o->refcount >= 2);
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spa_list_remove(&o->link);
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pa_operation_unref(o);
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o->context = NULL;
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}
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if (o->stream)
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pa_stream_unref(o->stream);
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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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SPA_EXPORT
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void pa_operation_unref(pa_operation *o)
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{
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pa_assert(o);
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pa_assert(o->refcount >= 1);
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if (--o->refcount == 0)
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operation_free(o);
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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(o->refcount >= 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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pw_log_debug("new state %p %d %d", o, o->seq, st);
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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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SPA_EXPORT
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void pa_operation_cancel(pa_operation *o)
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{
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pa_assert(o);
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pa_assert(o->refcount >= 1);
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pw_log_debug("%p %d", o, o->seq);
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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(o->refcount >= 1);
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operation_set_state(o, PA_OPERATION_DONE);
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}
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SPA_EXPORT
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pa_operation_state_t pa_operation_get_state(PA_CONST pa_operation *o)
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{
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pa_assert(o);
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pa_assert(o->refcount >= 1);
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return o->state;
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}
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SPA_EXPORT
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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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{
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pa_assert(o);
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pa_assert(o->refcount >= 1);
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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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