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tests: rtprtx::test_rtxsender_packet_retention: 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 17:17:57 +01:00 committed by Wim Taymans
parent 7011f98d7e
commit 7677aec2fa
1 changed files with 18 additions and 4 deletions
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22
tests/check/elements/rtprtx.c
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@ -1256,12 +1256,26 @@ test_rtxsender_packet_retention (gboolean test_with_time)
/* retransmit all the previous ones */
for (j = 1; j < i; j++) {
res = gst_pad_push_event (sinkpad,
create_rtx_event (j, ssrc, payload_type));
fail_unless_equals_int (res, TRUE);
/* synchronize with the chain() function of the "sinkpad"
* to make sure that rtxsend has pushed the rtx buffer out
* before continuing */
GList *last_out_buffer = g_list_last (buffers);
g_mutex_lock (&check_mutex);
fail_unless_equals_int (gst_pad_push_event (sinkpad,
create_rtx_event (j, ssrc, payload_type)), TRUE);
/* wait for the rtx packet only if we expect the element
* to actually retransmit something */
if (j >= MAX (i - half_buffers, 1)) {
guint64 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 this one, triggering the retransmit in rtxsend's chain() function */
/* push this one */
gst_pad_push (srcpad, gst_buffer_ref (buffer));
node = g_list_next (node);
}