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sgsn: delay f_gmm_attach() by 50ms 

Packets sent by f_gmm_attach() might take too long via layers to reach
the SGSN. The GMM_ATTACH_COMPL in f_gmm_attach() took soo long,
that it arrived after packets, which has been sent after calling f_gmm_attach().
This behaviour was found in TC hlr_location_cancel_request_update().

Change-Id: I0209c86e16fe616284d753e9e003f2e4d9ec9ea5
This commit is contained in:
Alexander Couzens 2019-10-08 16:29:26 +02:00 committed by lynxis lazus
parent 202c2f7486
commit 42d3cadb05
1 changed files with 8 additions and 0 deletions
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8
sgsn/SGSN_Tests.ttcn
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@ -784,6 +784,14 @@ friend function f_gmm_attach(boolean umts_aka_challenge, boolean force_gsm_sres,
if (is_iu(ran_index)) {
as_iu_release_compl_disc();
}
/* Race condition
* It has shown, that GMM_ATTACH_COMPL might take some time to arrive at the SGSN through the layers.
* In TC hlr_location_cancel_request_update, the GMM_ATTACH_COMPL came 2ms too late, so that the Location Cancel Request
* arrived before it. This results in a test case failure.
* Delay execution by 50 ms
*/
f_sleep(0.05);
}
private function f_TC_attach(charstring id) runs on BSSGP_ConnHdlr {