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d3dvideosink: improve concurrency on internal window create/destroy

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Remove timeout and rely on condition variable instead to indicate thread
start.
This commit is contained in:
Aaron Boxer 2019-12-07 09:53:20 -06:00
parent adfbce336a
commit 027eb5ef20
1 changed files with 12 additions and 18 deletions
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30
sys/d3dvideosink/d3dhelpers.c
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@ -2315,20 +2315,21 @@ d3d_internal_window_thread (D3DInternalWindowDat * dat)
g_thread_self ());
/* Create internal window */
g_mutex_lock (&dat->lock);
hWnd = _d3d_create_internal_window (sink);
g_mutex_lock (&dat->lock);
if (!hWnd) {
GST_ERROR_OBJECT (sink, "Failed to create internal window");
dat->error = TRUE;
g_cond_signal (&dat->cond);
g_mutex_unlock (&dat->lock);
goto end;
} else {
dat->hWnd = hWnd;
}
dat->hWnd = hWnd;
g_cond_signal (&dat->cond);
g_mutex_unlock (&dat->lock);
if (dat->error)
goto end;
/*
* Internal window message loop
*/
@ -2351,8 +2352,6 @@ d3d_create_internal_window (GstD3DVideoSink * sink)
{
GThread *thread;
D3DInternalWindowDat dat;
gint64 end_time;
gboolean timeout = FALSE;
dat.sink = sink;
dat.error = FALSE;
@ -2360,30 +2359,25 @@ d3d_create_internal_window (GstD3DVideoSink * sink)
g_mutex_init (&dat.lock);
g_cond_init (&dat.cond);
g_mutex_lock (&dat.lock);
thread =
g_thread_new ("d3dvideosink-window-thread",
(GThreadFunc) d3d_internal_window_thread, &dat);
if (!thread) {
g_mutex_unlock (&dat.lock);
GST_ERROR ("Failed to created internal window thread");
goto clear;
}
sink->internal_window_thread = thread;
end_time = g_get_monotonic_time () + 10 * G_TIME_SPAN_SECOND;
/* Wait 10 seconds for window proc loop to start up */
/* Wait for window proc loop to start up */
g_mutex_lock (&dat.lock);
while (!dat.error && !dat.hWnd) {
if (!g_cond_wait_until (&dat.cond, &dat.lock, end_time)) {
timeout = TRUE;
break;
}
g_cond_wait (&dat.cond, &dat.lock);
}
g_mutex_unlock (&dat.lock);
GST_DEBUG_OBJECT (sink, "Created window: %p (error: %d, timeout: %d)",
dat.hWnd, dat.error, timeout);
GST_DEBUG_OBJECT (sink, "Created window: %p (error: %d)",
dat.hWnd, dat.error);
clear:
{