llnl / llnl/UnifyFS

range_server_bget_op() inconsistent logic for op == MDHIM_GET_NEXT

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C
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Description

On this line we have if (op != MDHIM_GET_NEXT) {

https://github.com/LLNL/UnifyCR/blob/2cc38254e3bf25a07c2619bf5fdc577725568869/meta/src/range_server.c#L1029

Yet inside the if body there is code to handle op == MDHIM_GET_NEXT:

https://github.com/LLNL/UnifyCR/blob/2cc38254e3bf25a07c2619bf5fdc577725568869/meta/src/range_server.c#L1042
and
https://github.com/LLNL/UnifyCR/blob/2cc38254e3bf25a07c2619bf5fdc577725568869/meta/src/range_server.c#L1055

I'd like to restructure this function to reduce the nesting level and improve readability. Resolving the above inconsistency will help guide the restructuring. Should the handlers for MDHIM_GET_NEXT within the if body be removed, or is the if conditional statement just wrong? Is there a way to test whether this operation is being handled correctly?

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Research direction

Start in meta/src/range_server.c at range_server_bget_op(), especially the condition near lines 1029, 1042, and 1055. Trace the MDHIM_GET_NEXT path and determine whether the condition or its handlers match the intended behavior; done means the control flow is consistent, nesting is clearer, and the operation has regression coverage.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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