dtls: Let sender know when we are flushing
Prevents endless loop during shutdown where we end up sending 0 bytes. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2229>
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@ -565,6 +565,9 @@ sink_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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GST_ELEMENT_ERROR (self, RESOURCE, WRITE, (NULL), ("%s", err->message));
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g_clear_error (&err);
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break;
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case GST_FLOW_FLUSHING:
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GST_INFO_OBJECT (self, "Flushing");
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break;
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default:
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g_assert_not_reached ();
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break;
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@ -680,6 +683,8 @@ on_send_data (GstDtlsConnection * connection, gconstpointer data, gsize length,
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GST_TRACE_OBJECT (self, "send data: releasing lock");
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ret = self->src_ret == GST_FLOW_OK;
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if (self->src_ret == GST_FLOW_FLUSHING)
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gst_dtls_connection_set_flow_return (connection, self->src_ret);
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g_mutex_unlock (&self->queue_lock);
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return ret;
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