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tests: rtprtx::test_rtxreceive_data_reconstruction: fix race condition

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Now with rtprtxsend pushing rtx buffers from a different thread,
this is necessary to ensure that the result of the test is deterministic.

This code makes use of GstCheck's global GMutex and GCond that are
being used inside GstCheck's sink pad chain() function in order
to synchronize with it.
This commit is contained in:
George Kiagiadakis 2014-01-15 17:27:19 +01:00 committed by Wim Taymans
parent 7677aec2fa
commit 184553151d
1 changed files with 22 additions and 3 deletions
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25
tests/check/elements/rtprtx.c
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@ -1447,12 +1447,31 @@ GST_START_TEST (test_rtxreceive_data_reconstruction)
gst_check_setup_events (srcpad, rtxsend, caps, GST_FORMAT_TIME);
gst_caps_unref (caps);
/* push buffer and retransmission request */
/* push buffer */
buffer = gst_buffer_ref (GST_BUFFER (in_buffers->data));
fail_unless_equals_int (gst_pad_push (srcpad, gst_buffer_ref (buffer)),
GST_FLOW_OK);
fail_unless_equals_int (gst_pad_push_event (sinkpad,
create_rtx_event (1, ssrc, payload_type)), TRUE);
/* push retransmission request */
{
GList *last_out_buffer;
guint64 end_time;
gboolean res;
/* synchronize with the chain() function of the "sinkpad"
* to make sure that rtxsend has pushed the rtx buffer out
* before continuing */
last_out_buffer = g_list_last (buffers);
g_mutex_lock (&check_mutex);
fail_unless_equals_int (gst_pad_push_event (sinkpad,
create_rtx_event (1, ssrc, payload_type)), TRUE);
end_time = g_get_monotonic_time () + G_TIME_SPAN_SECOND;
do
res = g_cond_wait_until (&check_cond, &check_mutex, end_time);
while (res == TRUE && last_out_buffer == g_list_last (buffers));
fail_unless_equals_int (res, TRUE);
g_mutex_unlock (&check_mutex);
}
/* push with the next seqnum to trigger retransmission in rtxsend */
buffer = gst_buffer_make_writable (buffer);