Dan Hecht has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9089 )

Change subject: IMPALA-6215: Removes race when using LibCache.
......................................................................


Patch Set 5:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/9089/5/be/src/runtime/lib-cache.h
File be/src/runtime/lib-cache.h:

http://gerrit.cloudera.org:8080/#/c/9089/5/be/src/runtime/lib-cache.h@78
PS5, Line 78:   /// '*entry' is expected to be null. The caller must call 
DecrementUseCount(*entry)
            :   /// when it is done using 'path'.
is the 'entry' opaque to the caller and only used to decrement the reference 
count? if so, maybe we should make this parameter be a handle class that's 
effectively the scope exit thing and handles the reference counting for us. 
That way, a callsite can't forget to decrement, and each callsite doesn't have 
to define the same scope exit handler code itself.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I9175085201fe8b11424ab8f88d7b992cb7b0daea
Gerrit-Change-Number: 9089
Gerrit-PatchSet: 5
Gerrit-Owner: Vuk Ercegovac <[email protected]>
Gerrit-Reviewer: Bikramjeet Vig <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Vuk Ercegovac <[email protected]>
Gerrit-Comment-Date: Mon, 29 Jan 2018 21:45:41 +0000
Gerrit-HasComments: Yes

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