mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 05:12:09 +00:00
b6df564251
While the default implementation will spawn a thread per new pushed task, this new implementation instead spawns a maximum number of threads, then queues new tasks on existing threads. The thread that the new task will be queued on is picked in a pretty naive fashion, by simply popping the first thread from a queue and pushing it back to the tail, but this is an implementation detail and can always be sophisticated in the future if the need arises. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/692>
487 lines
11 KiB
C
487 lines
11 KiB
C
/* GStreamer
|
|
* Copyright (C) 2005 Thomas Vander Stichele <thomas at apestaart dot org>
|
|
*
|
|
* gsttask.c: Unit test for GstTask
|
|
*
|
|
* 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>
|
|
|
|
static GMutex task_lock;
|
|
static GCond task_cond;
|
|
|
|
static GRecMutex task_mutex;
|
|
|
|
#define TEST_RACE_ITERATIONS 1000
|
|
|
|
static void
|
|
task_resume_func (void *data)
|
|
{
|
|
g_mutex_lock (&task_lock);
|
|
g_cond_signal (&task_cond);
|
|
g_mutex_unlock (&task_lock);
|
|
}
|
|
|
|
GST_START_TEST (test_resume)
|
|
{
|
|
GstTask *t;
|
|
|
|
t = gst_task_new (task_resume_func, &t, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
g_rec_mutex_init (&task_mutex);
|
|
gst_task_set_lock (t, &task_mutex);
|
|
|
|
g_cond_init (&task_cond);
|
|
g_mutex_init (&task_lock);
|
|
|
|
g_mutex_lock (&task_lock);
|
|
|
|
/* Pause the task, and resume it. */
|
|
fail_unless (gst_task_pause (t));
|
|
fail_unless (gst_task_resume (t));
|
|
|
|
while (GST_TASK_STATE (t) != GST_TASK_STARTED)
|
|
g_cond_wait (&task_cond, &task_lock);
|
|
|
|
fail_unless (gst_task_stop (t));
|
|
g_mutex_unlock (&task_lock);
|
|
fail_unless (gst_task_join (t));
|
|
|
|
/* Make sure we cannot resume from stopped. */
|
|
fail_if (gst_task_resume (t));
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
static void
|
|
task_signal_pause_func (void *data)
|
|
{
|
|
GstTask **t = data;
|
|
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("signal");
|
|
g_cond_signal (&task_cond);
|
|
|
|
gst_task_pause (*t);
|
|
g_mutex_unlock (&task_lock);
|
|
}
|
|
|
|
GST_START_TEST (test_pause_stop_race)
|
|
{
|
|
guint it = TEST_RACE_ITERATIONS;
|
|
GstTask *t;
|
|
gboolean ret;
|
|
|
|
t = gst_task_new (task_signal_pause_func, &t, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
g_rec_mutex_init (&task_mutex);
|
|
gst_task_set_lock (t, &task_mutex);
|
|
|
|
g_cond_init (&task_cond);
|
|
g_mutex_init (&task_lock);
|
|
|
|
while (it-- > 0) {
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("starting");
|
|
ret = gst_task_start (t);
|
|
fail_unless (ret == TRUE);
|
|
/* wait for it to spin up */
|
|
GST_DEBUG ("waiting");
|
|
g_cond_wait (&task_cond, &task_lock);
|
|
GST_DEBUG ("done waiting");
|
|
g_mutex_unlock (&task_lock);
|
|
|
|
GST_DEBUG ("starting");
|
|
ret = gst_task_stop (t);
|
|
fail_unless (ret == TRUE);
|
|
|
|
GST_DEBUG ("joining");
|
|
ret = gst_task_join (t);
|
|
fail_unless (ret == TRUE);
|
|
}
|
|
|
|
g_cond_clear (&task_cond);
|
|
g_mutex_clear (&task_lock);
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
static void
|
|
task_func2 (void *data)
|
|
{
|
|
gboolean ret;
|
|
GstTask *t = *((GstTask **) data);
|
|
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("signal");
|
|
g_cond_signal (&task_cond);
|
|
g_mutex_unlock (&task_lock);
|
|
|
|
ASSERT_WARNING (ret = gst_task_join (t));
|
|
fail_unless (ret == FALSE);
|
|
}
|
|
|
|
GST_START_TEST (test_join)
|
|
{
|
|
GstTask *t;
|
|
gboolean ret;
|
|
|
|
t = gst_task_new (task_func2, &t, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
g_rec_mutex_init (&task_mutex);
|
|
gst_task_set_lock (t, &task_mutex);
|
|
|
|
g_cond_init (&task_cond);
|
|
g_mutex_init (&task_lock);
|
|
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("starting");
|
|
ret = gst_task_start (t);
|
|
fail_unless (ret == TRUE);
|
|
/* wait for it to spin up */
|
|
GST_DEBUG ("waiting");
|
|
g_cond_wait (&task_cond, &task_lock);
|
|
GST_DEBUG ("done waiting");
|
|
g_mutex_unlock (&task_lock);
|
|
|
|
GST_DEBUG ("joining");
|
|
ret = gst_task_join (t);
|
|
fail_unless (ret == TRUE);
|
|
|
|
gst_task_cleanup_all ();
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
static void
|
|
task_func (void *data)
|
|
{
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("signal");
|
|
g_cond_signal (&task_cond);
|
|
g_mutex_unlock (&task_lock);
|
|
}
|
|
|
|
GST_START_TEST (test_lock_start)
|
|
{
|
|
GstTask *t;
|
|
gboolean ret;
|
|
|
|
t = gst_task_new (task_func, NULL, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
g_rec_mutex_init (&task_mutex);
|
|
gst_task_set_lock (t, &task_mutex);
|
|
|
|
g_cond_init (&task_cond);
|
|
g_mutex_init (&task_lock);
|
|
|
|
g_mutex_lock (&task_lock);
|
|
GST_DEBUG ("starting");
|
|
ret = gst_task_start (t);
|
|
fail_unless (ret == TRUE);
|
|
/* wait for it to spin up */
|
|
GST_DEBUG ("waiting");
|
|
g_cond_wait (&task_cond, &task_lock);
|
|
GST_DEBUG ("done waiting");
|
|
g_mutex_unlock (&task_lock);
|
|
|
|
/* cannot set mutex now */
|
|
ASSERT_WARNING (gst_task_set_lock (t, &task_mutex));
|
|
|
|
GST_DEBUG ("joining");
|
|
ret = gst_task_join (t);
|
|
fail_unless (ret == TRUE);
|
|
|
|
gst_task_cleanup_all ();
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_lock)
|
|
{
|
|
GstTask *t;
|
|
gboolean ret;
|
|
|
|
t = gst_task_new (task_func, NULL, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
g_rec_mutex_init (&task_mutex);
|
|
gst_task_set_lock (t, &task_mutex);
|
|
|
|
GST_DEBUG ("pause");
|
|
ret = gst_task_pause (t);
|
|
fail_unless (ret == TRUE);
|
|
|
|
g_usleep (1 * G_USEC_PER_SEC / 2);
|
|
|
|
GST_DEBUG ("joining");
|
|
ret = gst_task_join (t);
|
|
fail_unless (ret == TRUE);
|
|
|
|
g_usleep (1 * G_USEC_PER_SEC / 2);
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_no_lock)
|
|
{
|
|
GstTask *t;
|
|
gboolean ret;
|
|
|
|
t = gst_task_new (task_func, NULL, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
/* stop should be possible without lock */
|
|
gst_task_stop (t);
|
|
|
|
/* pause should give a warning */
|
|
ASSERT_WARNING (ret = gst_task_pause (t));
|
|
fail_unless (ret == FALSE);
|
|
|
|
/* start should give a warning */
|
|
ASSERT_WARNING (ret = gst_task_start (t));
|
|
fail_unless (ret == FALSE);
|
|
|
|
/* stop should be possible without lock */
|
|
gst_task_stop (t);
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_create)
|
|
{
|
|
GstTask *t;
|
|
|
|
t = gst_task_new (task_func, NULL, NULL);
|
|
fail_if (t == NULL);
|
|
|
|
gst_object_unref (t);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
typedef struct
|
|
{
|
|
gboolean called;
|
|
gpointer caller_thread;
|
|
|
|
GCond blocked_cond;
|
|
GMutex blocked_lock;
|
|
gboolean blocked;
|
|
|
|
GCond unblock_cond;
|
|
GMutex unblock_lock;
|
|
gboolean unblock;
|
|
} TaskData;
|
|
|
|
static void
|
|
task_cb (TaskData * tdata)
|
|
{
|
|
tdata->called = TRUE;
|
|
tdata->caller_thread = g_thread_self ();
|
|
|
|
g_mutex_lock (&tdata->blocked_lock);
|
|
tdata->blocked = TRUE;
|
|
g_cond_signal (&tdata->blocked_cond);
|
|
g_mutex_unlock (&tdata->blocked_lock);
|
|
|
|
g_mutex_lock (&tdata->unblock_lock);
|
|
while (!tdata->unblock)
|
|
g_cond_wait (&tdata->unblock_cond, &tdata->unblock_lock);
|
|
|
|
g_mutex_unlock (&tdata->unblock_lock);
|
|
}
|
|
|
|
static void
|
|
init_task_data (TaskData * tdata)
|
|
{
|
|
tdata->called = FALSE;
|
|
tdata->caller_thread = NULL;
|
|
tdata->unblock = FALSE;
|
|
g_cond_init (&tdata->unblock_cond);
|
|
g_mutex_init (&tdata->unblock_lock);
|
|
|
|
tdata->blocked = FALSE;
|
|
g_cond_init (&tdata->blocked_cond);
|
|
g_mutex_init (&tdata->blocked_lock);
|
|
}
|
|
|
|
static void
|
|
cleanup_task_data (TaskData * tdata)
|
|
{
|
|
g_mutex_clear (&tdata->unblock_lock);
|
|
g_cond_clear (&tdata->unblock_cond);
|
|
g_mutex_clear (&tdata->blocked_lock);
|
|
g_cond_clear (&tdata->blocked_cond);
|
|
}
|
|
|
|
/* In this test, we use a shared task pool with max-threads=1 and verify
|
|
* that the caller thread for two tasks is the same */
|
|
GST_START_TEST (test_shared_task_pool_shared_thread)
|
|
{
|
|
GstTaskPool *pool;
|
|
gpointer handle, handle2;
|
|
GError *err = NULL;
|
|
TaskData tdata, tdata2;
|
|
|
|
init_task_data (&tdata);
|
|
init_task_data (&tdata2);
|
|
|
|
pool = gst_shared_task_pool_new ();
|
|
gst_task_pool_prepare (pool, &err);
|
|
|
|
fail_unless (err == NULL);
|
|
|
|
/* We request that two tasks be executed, and our task function is blocking.
|
|
* This means no new thread is available to spawn, and the second task should
|
|
* be queued up on the first thread */
|
|
handle =
|
|
gst_task_pool_push (pool, (GstTaskPoolFunction) task_cb, &tdata, &err);
|
|
fail_unless (err == NULL);
|
|
handle2 =
|
|
gst_task_pool_push (pool, (GstTaskPoolFunction) task_cb, &tdata2, &err);
|
|
fail_unless (err == NULL);
|
|
|
|
g_mutex_lock (&tdata.unblock_lock);
|
|
tdata.unblock = TRUE;
|
|
g_cond_signal (&tdata.unblock_cond);
|
|
g_mutex_unlock (&tdata.unblock_lock);
|
|
|
|
g_mutex_lock (&tdata2.unblock_lock);
|
|
tdata2.unblock = TRUE;
|
|
g_cond_signal (&tdata2.unblock_cond);
|
|
g_mutex_unlock (&tdata2.unblock_lock);
|
|
|
|
gst_task_pool_join (pool, handle);
|
|
gst_task_pool_join (pool, handle2);
|
|
|
|
fail_unless (tdata.called == TRUE);
|
|
fail_unless (tdata2.called == TRUE);
|
|
fail_unless (tdata.caller_thread == tdata2.caller_thread);
|
|
|
|
cleanup_task_data (&tdata);
|
|
cleanup_task_data (&tdata2);
|
|
|
|
gst_task_pool_cleanup (pool);
|
|
|
|
g_object_unref (pool);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
/* In this test, we use a shared task pool with max-threads=2 and verify
|
|
* that the caller thread for two tasks is different */
|
|
GST_START_TEST (test_shared_task_pool_two_threads)
|
|
{
|
|
GstTaskPool *pool;
|
|
gpointer handle, handle2;
|
|
GError *err = NULL;
|
|
TaskData tdata, tdata2;
|
|
|
|
init_task_data (&tdata);
|
|
init_task_data (&tdata2);
|
|
|
|
pool = gst_shared_task_pool_new ();
|
|
gst_shared_task_pool_set_max_threads (GST_SHARED_TASK_POOL (pool), 2);
|
|
gst_task_pool_prepare (pool, &err);
|
|
|
|
fail_unless (err == NULL);
|
|
|
|
/* We request that two tasks be executed, and our task function is blocking.
|
|
* This means the pool will have to spawn a new thread to handle the task */
|
|
handle =
|
|
gst_task_pool_push (pool, (GstTaskPoolFunction) task_cb, &tdata, &err);
|
|
fail_unless (err == NULL);
|
|
handle2 =
|
|
gst_task_pool_push (pool, (GstTaskPoolFunction) task_cb, &tdata2, &err);
|
|
fail_unless (err == NULL);
|
|
|
|
/* Make sure that the second task has started executing before unblocking */
|
|
g_mutex_lock (&tdata2.blocked_lock);
|
|
while (!tdata2.blocked) {
|
|
g_cond_wait (&tdata2.blocked_cond, &tdata2.blocked_lock);
|
|
}
|
|
g_mutex_unlock (&tdata2.blocked_lock);
|
|
|
|
g_mutex_lock (&tdata.unblock_lock);
|
|
tdata.unblock = TRUE;
|
|
g_cond_signal (&tdata.unblock_cond);
|
|
g_mutex_unlock (&tdata.unblock_lock);
|
|
|
|
g_mutex_lock (&tdata2.unblock_lock);
|
|
tdata2.unblock = TRUE;
|
|
g_cond_signal (&tdata2.unblock_cond);
|
|
g_mutex_unlock (&tdata2.unblock_lock);
|
|
|
|
gst_task_pool_join (pool, handle);
|
|
gst_task_pool_join (pool, handle2);
|
|
|
|
fail_unless (tdata.called == TRUE);
|
|
fail_unless (tdata2.called == TRUE);
|
|
|
|
fail_unless (tdata.caller_thread != tdata2.caller_thread);
|
|
|
|
cleanup_task_data (&tdata);
|
|
cleanup_task_data (&tdata2);
|
|
|
|
gst_task_pool_cleanup (pool);
|
|
|
|
g_object_unref (pool);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
static Suite *
|
|
gst_task_suite (void)
|
|
{
|
|
Suite *s = suite_create ("GstTask");
|
|
TCase *tc_chain = tcase_create ("task tests");
|
|
|
|
suite_add_tcase (s, tc_chain);
|
|
tcase_add_test (tc_chain, test_create);
|
|
tcase_add_test (tc_chain, test_no_lock);
|
|
tcase_add_test (tc_chain, test_lock);
|
|
tcase_add_test (tc_chain, test_lock_start);
|
|
tcase_add_test (tc_chain, test_join);
|
|
tcase_add_test (tc_chain, test_pause_stop_race);
|
|
tcase_add_test (tc_chain, test_resume);
|
|
tcase_add_test (tc_chain, test_shared_task_pool_shared_thread);
|
|
tcase_add_test (tc_chain, test_shared_task_pool_two_threads);
|
|
|
|
return s;
|
|
}
|
|
|
|
GST_CHECK_MAIN (gst_task);
|