gstreamer/tests/check/gst/gstpromise.c

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/* GStreamer
*
* unit test for GstPromise
*
* Copyright (C) 2017 Matthew Waters <matthew@centricular.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/check/gstcheck.h>
struct event_queue
{
GMutex lock;
GCond cond;
GThread *thread;
GMainContext *main_context;
GMainLoop *main_loop;
gpointer user_data;
};
static gboolean
_unlock_thread (GMutex * lock)
{
g_mutex_unlock (lock);
return G_SOURCE_REMOVE;
}
static gpointer
_promise_thread (struct event_queue *q)
{
g_mutex_lock (&q->lock);
q->main_context = g_main_context_new ();
q->main_loop = g_main_loop_new (q->main_context, FALSE);
g_cond_broadcast (&q->cond);
g_main_context_invoke (q->main_context, (GSourceFunc) _unlock_thread,
&q->lock);
g_main_loop_run (q->main_loop);
g_mutex_lock (&q->lock);
g_main_context_unref (q->main_context);
q->main_context = NULL;
g_main_loop_unref (q->main_loop);
q->main_loop = NULL;
g_cond_broadcast (&q->cond);
g_mutex_unlock (&q->lock);
return NULL;
}
static void
event_queue_start (struct event_queue *q)
{
g_mutex_lock (&q->lock);
q->thread = g_thread_new ("promise-thread", (GThreadFunc) _promise_thread, q);
while (!q->main_loop)
g_cond_wait (&q->cond, &q->lock);
g_mutex_unlock (&q->lock);
}
static void
event_queue_stop (struct event_queue *q)
{
g_mutex_lock (&q->lock);
if (q->main_loop)
g_main_loop_quit (q->main_loop);
g_mutex_unlock (&q->lock);
}
static void
event_queue_stop_wait (struct event_queue *q)
{
g_mutex_lock (&q->lock);
while (q->main_loop) {
g_main_loop_quit (q->main_loop);
g_cond_wait (&q->cond, &q->lock);
}
g_mutex_unlock (&q->lock);
g_thread_unref (q->thread);
}
static struct event_queue *
event_queue_new (void)
{
struct event_queue *q = g_new0 (struct event_queue, 1);
GST_LOG ("starting event queue %p", q);
g_mutex_init (&q->lock);
g_cond_init (&q->cond);
event_queue_start (q);
return q;
}
static void
event_queue_free (struct event_queue *q)
{
event_queue_stop_wait (q);
g_mutex_clear (&q->lock);
g_cond_clear (&q->cond);
GST_LOG ("stopped event queue %p", q);
g_free (q);
}
static void
_enqueue_task (struct event_queue *q, GSourceFunc func, gpointer data,
GDestroyNotify notify)
{
GSource *source;
source = g_idle_source_new ();
g_source_set_priority (source, G_PRIORITY_DEFAULT);
g_source_set_callback (source, (GSourceFunc) func, data, notify);
g_source_attach (source, q->main_context);
g_source_unref (source);
}
GST_START_TEST (test_reply)
{
GstPromise *r;
r = gst_promise_new ();
gst_promise_reply (r, NULL);
fail_unless (gst_promise_wait (r) == GST_PROMISE_RESULT_REPLIED);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_reply_data)
{
GstPromise *r;
GstStructure *s;
const GstStructure *ret;
r = gst_promise_new ();
s = gst_structure_new ("promise", "test", G_TYPE_INT, 1, NULL);
gst_promise_reply (r, gst_structure_copy (s));
fail_unless (gst_promise_wait (r) == GST_PROMISE_RESULT_REPLIED);
ret = gst_promise_get_reply (r);
fail_unless (gst_structure_is_equal (ret, s));
gst_promise_unref (r);
gst_structure_free (s);
}
GST_END_TEST;
GST_START_TEST (test_reply_immutable)
{
GstPromise *r;
GstStructure *s, *ret;
r = gst_promise_new ();
s = gst_structure_new ("promise", "test", G_TYPE_INT, 1, NULL);
gst_promise_reply (r, s);
ret = (GstStructure *) gst_promise_get_reply (r);
/* immutable result must not be able to modify the reply */
ASSERT_CRITICAL (gst_structure_set (ret, "foo", G_TYPE_STRING, "bar", NULL));
fail_unless (gst_structure_get_string (ret, "foo") == NULL);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_interrupt)
{
GstPromise *r;
r = gst_promise_new ();
gst_promise_interrupt (r);
fail_unless (gst_promise_wait (r) == GST_PROMISE_RESULT_INTERRUPTED);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_expire)
{
GstPromise *r;
r = gst_promise_new ();
gst_promise_expire (r);
fail_unless (gst_promise_wait (r) == GST_PROMISE_RESULT_EXPIRED);
gst_promise_unref (r);
}
GST_END_TEST;
struct change_data
{
int change_count;
GstPromiseResult result;
};
static void
on_change (GstPromise * promise, gpointer user_data)
{
struct change_data *res = user_data;
res->result = gst_promise_wait (promise);
res->change_count += 1;
}
GST_START_TEST (test_change_func)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_reply (r, NULL);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_reply_expire)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_reply (r, NULL);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_reply_discard)
{
GstPromise *r;
/* NULL promise => discard reply */
r = NULL;
/* no-op, we don't want a reply */
gst_promise_reply (r, NULL);
if (r)
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_reply_interrupt)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_reply (r, NULL);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_interrupt (r);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_reply_reply)
{
GstPromise *r;
GstStructure *s;
struct change_data data = { 0, };
const GstStructure *ret;
r = gst_promise_new_with_change_func (on_change, &data, NULL);
s = gst_structure_new ("promise", "test", G_TYPE_INT, 1, NULL);
gst_promise_reply (r, s);
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
ASSERT_CRITICAL (gst_promise_reply (r, NULL));
fail_unless (gst_promise_wait (r) == GST_PROMISE_RESULT_REPLIED);
ret = gst_promise_get_reply (r);
fail_unless (gst_structure_is_equal (ret, s));
fail_unless (data.result == GST_PROMISE_RESULT_REPLIED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_interrupt_expire)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_interrupt (r);
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_interrupt_reply)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_interrupt (r);
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
gst_promise_reply (r, NULL);
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_interrupt_interrupt)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_interrupt (r);
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
ASSERT_CRITICAL (gst_promise_interrupt (r));
fail_unless (data.result == GST_PROMISE_RESULT_INTERRUPTED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_expire_expire)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_expire_interrupt)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
ASSERT_CRITICAL (gst_promise_interrupt (r));
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
GST_START_TEST (test_expire_reply)
{
GstPromise *r;
struct change_data data = { 0, };
r = gst_promise_new_with_change_func (on_change, &data, NULL);
gst_promise_expire (r);
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
ASSERT_CRITICAL (gst_promise_reply (r, NULL));
fail_unless (data.result == GST_PROMISE_RESULT_EXPIRED);
fail_unless (data.change_count == 1);
gst_promise_unref (r);
}
GST_END_TEST;
struct stress_item
{
struct event_queue *q;
GstPromise *promise;
GstPromiseResult result;
};
static void
stress_reply (struct stress_item *item)
{
switch (item->result) {
case GST_PROMISE_RESULT_REPLIED:
gst_promise_reply (item->promise, NULL);
break;
case GST_PROMISE_RESULT_INTERRUPTED:
gst_promise_interrupt (item->promise);
break;
case GST_PROMISE_RESULT_EXPIRED:
gst_promise_expire (item->promise);
break;
default:
g_assert_not_reached ();
}
}
struct stress_queues
{
GAsyncQueue *push_queue;
GAsyncQueue *wait_queue;
guint64 push_count;
};
static gboolean
_push_random_promise (struct event_queue *q)
{
struct stress_queues *s_q = q->user_data;
struct stress_item *item;
item = g_new0 (struct stress_item, 1);
item->promise = gst_promise_new ();
while (item->result == GST_PROMISE_RESULT_PENDING)
item->result = g_random_int () % 4;
g_async_queue_push (s_q->wait_queue, item);
g_async_queue_push (s_q->push_queue, item);
s_q->push_count++;
return G_SOURCE_CONTINUE;
}
static void
_push_stop_promise (struct event_queue *q)
{
struct stress_queues *s_q = q->user_data;
gpointer item = GINT_TO_POINTER (1);
g_async_queue_push (s_q->wait_queue, item);
g_async_queue_push (s_q->push_queue, item);
}
static gboolean
_pop_promise (struct event_queue *q)
{
struct stress_queues *s_q = q->user_data;
struct stress_item *item;
item = g_async_queue_pop (s_q->push_queue);
if (item == (void *) 1)
return G_SOURCE_REMOVE;
stress_reply (item);
return G_SOURCE_CONTINUE;
}
static gboolean
_wait_promise (struct event_queue *q)
{
struct stress_queues *s_q = q->user_data;
struct stress_item *item;
item = g_async_queue_pop (s_q->wait_queue);
if (item == (void *) 1)
return G_SOURCE_REMOVE;
fail_unless (gst_promise_wait (item->promise) == item->result);
gst_promise_unref (item->promise);
g_free (item);
return G_SOURCE_CONTINUE;
}
GST_START_TEST (test_stress)
{
#define N_QUEUES 3
struct event_queue *pushers[N_QUEUES];
struct event_queue *poppers[N_QUEUES];
struct event_queue *waiters[N_QUEUES];
struct stress_queues s_q = { 0, };
int i;
s_q.push_queue = g_async_queue_new ();
s_q.wait_queue = g_async_queue_new ();
for (i = 0; i < N_QUEUES; i++) {
pushers[i] = event_queue_new ();
pushers[i]->user_data = &s_q;
_enqueue_task (pushers[i], (GSourceFunc) _push_random_promise, pushers[i],
NULL);
waiters[i] = event_queue_new ();
waiters[i]->user_data = &s_q;
_enqueue_task (waiters[i], (GSourceFunc) _wait_promise, waiters[i], NULL);
poppers[i] = event_queue_new ();
poppers[i]->user_data = &s_q;
_enqueue_task (poppers[i], (GSourceFunc) _pop_promise, poppers[i], NULL);
}
GST_INFO ("all set up, waiting.");
g_usleep (100000);
GST_INFO ("wait done, cleaning up the test.");
{
struct stress_item *item;
int push_size;
for (i = 0; i < N_QUEUES; i++) {
event_queue_stop (pushers[i]);
event_queue_stop (poppers[i]);
event_queue_stop (waiters[i]);
_push_stop_promise (pushers[i]);
}
for (i = 0; i < N_QUEUES; i++) {
event_queue_free (pushers[i]);
event_queue_free (poppers[i]);
}
push_size = g_async_queue_length (s_q.push_queue);
/* push through all the promises so all the waits will complete */
while ((item = g_async_queue_try_pop (s_q.push_queue))) {
if (item == (void *) 1)
continue;
stress_reply (item);
}
for (i = 0; i < N_QUEUES; i++)
event_queue_free (waiters[i]);
GST_INFO ("pushed %" G_GUINT64_FORMAT ", %d leftover in push queue, "
"%d leftover in wait queue", s_q.push_count, push_size,
g_async_queue_length (s_q.wait_queue));
while ((item = g_async_queue_try_pop (s_q.wait_queue))) {
if (item == (void *) 1)
continue;
fail_unless (gst_promise_wait (item->promise) == item->result);
gst_promise_unref (item->promise);
g_free (item);
}
}
g_async_queue_unref (s_q.push_queue);
g_async_queue_unref (s_q.wait_queue);
}
GST_END_TEST;
static Suite *
gst_promise_suite (void)
{
Suite *s = suite_create ("GstPromise");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_reply);
tcase_add_test (tc_chain, test_reply_data);
tcase_add_test (tc_chain, test_reply_immutable);
tcase_add_test (tc_chain, test_interrupt);
tcase_add_test (tc_chain, test_expire);
tcase_add_test (tc_chain, test_change_func);
tcase_add_test (tc_chain, test_reply_expire);
tcase_add_test (tc_chain, test_reply_discard);
tcase_add_test (tc_chain, test_reply_interrupt);
tcase_add_test (tc_chain, test_reply_reply);
tcase_add_test (tc_chain, test_interrupt_reply);
tcase_add_test (tc_chain, test_interrupt_expire);
tcase_add_test (tc_chain, test_interrupt_interrupt);
tcase_add_test (tc_chain, test_expire_expire);
tcase_add_test (tc_chain, test_expire_interrupt);
tcase_add_test (tc_chain, test_expire_reply);
tcase_add_test (tc_chain, test_stress);
return s;
}
GST_CHECK_MAIN (gst_promise);