Change in libosmocore[master]: add gsm23236: MSC pooling: TMSI and NRI utility functions

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neels gerrit-no-reply at lists.osmocom.org
Wed Jun 3 14:20:11 UTC 2020


neels has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/18506 )

Change subject: add gsm23236: MSC pooling: TMSI and NRI utility functions
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Patch Set 4:

(1 comment)

https://gerrit.osmocom.org/c/libosmocore/+/18506/2/src/gsm/gsm23236.c 
File src/gsm/gsm23236.c:

https://gerrit.osmocom.org/c/libosmocore/+/18506/2/src/gsm/gsm23236.c@36 
PS2, Line 36: int16_t
> The function itself returns an error code: […]
whether this function fails or not is a separate aspect of whether, say, osmo-bsc's VTY config wants to indicate that a stored nri_v is invalid or not. For example, we may need to configure a separate NULL-NRI for each MSC. If I want to indicate in the config that some MSC has no NULL-NRI configured, I can set it negative (or need a separate bool). So I choose to have negative NRI to indicate invalid, and then of course I want to have one consistent data type everywhere. We can also use uint16_t with a #define OSMO_NRI_INVALID, if you prefer that, but using a signed integer is less code. Or I could add 'typedef int16_t osmo_nri_v'?

Before, I had the nri_v as return value, being negative on error, but some review didn't like that. It is IMHO also nicer with a separate return value, consistently for both this and osmo_tmsi_nri_set(). So I will not go back to returning the nri_v.

re "confusing": the api doc explains everything, which part do you find confusing? Should I add "is always positive" to the 'nri_v' api doc?



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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: Icb57a2dd9323c7ea11b34003eccc7e68a0247bf5
Gerrit-Change-Number: 18506
Gerrit-PatchSet: 4
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-CC: Vadim Yanitskiy <vyanitskiy at sysmocom.de>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-Comment-Date: Wed, 03 Jun 2020 14:20:11 +0000
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Comment-In-Reply-To: Vadim Yanitskiy <vyanitskiy at sysmocom.de>
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