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harness: unref sink/src caps after deactivating pads

Browse source 
Otherwise, access to the harness' sink/src caps is racy between any caps
query performed by an element and gst_harness_teardown().

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/794
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/574>
This commit is contained in:
Matthew Waters 2020-07-23 14:51:51 +10:00
parent cd6bc944f9
commit 39aa702659
1 changed files with 21 additions and 10 deletions
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31
libs/gst/check/gstharness.c
View file

@ -1063,23 +1063,17 @@ gst_harness_teardown (GstHarness * h)
g_mutex_unlock (&priv->blocking_push_mutex);
}
if (h->src_harness) {
if (h->src_harness)
gst_harness_teardown (h->src_harness);
}
h->src_harness = NULL;
HARNESS_LOCK (h);
gst_object_replace ((GstObject **) & priv->sink_forward_pad, NULL);
HARNESS_UNLOCK (h);
if (h->sink_harness) {
if (h->sink_harness)
gst_harness_teardown (h->sink_harness);
}
if (priv->src_caps)
gst_caps_unref (priv->src_caps);
if (priv->sink_caps)
gst_caps_unref (priv->sink_caps);
h->sink_harness = NULL;
if (h->srcpad) {
if (gst_pad_is_request_pad (GST_PAD_PEER (h->srcpad)))
@ -1097,6 +1091,7 @@ gst_harness_teardown (GstHarness * h)
gst_object_unref (h->srcpad);
}
h->srcpad = NULL;
if (h->sinkpad) {
if (gst_pad_is_request_pad (GST_PAD_PEER (h->sinkpad)))
@ -1115,6 +1110,15 @@ gst_harness_teardown (GstHarness * h)
gst_object_unref (h->sinkpad);
}
h->sinkpad = NULL;
if (priv->src_caps)
gst_caps_unref (priv->src_caps);
priv->src_caps = NULL;
if (priv->sink_caps)
gst_caps_unref (priv->sink_caps);
priv->sink_caps = NULL;
gst_object_replace ((GstObject **) & priv->propose_allocator, NULL);
gst_object_replace ((GstObject **) & priv->allocator, NULL);
@ -1122,6 +1126,7 @@ gst_harness_teardown (GstHarness * h)
if (priv->propose_allocation_metas)
g_array_unref (priv->propose_allocation_metas);
priv->propose_allocation_metas = NULL;
/* if we hold the last ref, set to NULL */
if (gst_harness_element_unref (h) == 0) {
@ -1143,16 +1148,22 @@ gst_harness_teardown (GstHarness * h)
priv->eos_received = FALSE;
g_async_queue_unref (priv->buffer_queue);
priv->buffer_queue = NULL;
g_async_queue_unref (priv->src_event_queue);
priv->src_event_queue = NULL;
g_async_queue_unref (priv->sink_event_queue);
priv->sink_event_queue = NULL;
g_ptr_array_unref (priv->stress);
priv->stress = NULL;
gst_object_unref (h->element);
h->element = NULL;
gst_object_replace ((GstObject **) & priv->testclock, NULL);
g_free (h->priv);
h->priv = NULL;
g_free (h);
}