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Subject: Re: Arbitrary limit on timeouts?
From: Eric Norum <wenorum@lbl.gov>
To: Michael Davidsaver <mdavidsaver@gmail.com>
Cc: EPICS mailing list <tech-talk@aps.anl.gov>
Date: Wed, 7 Jun 2017 10:44:25 -0700
Thanks for checking the provenance of this.
I can see the usefulness of the sanity check limit to non-negative timeouts but the arbitrary upper limit seems like a bad idea. Maybe it’s too late to change now — there may be some existing code that depends on this.   At the very least the behaviour should be noted in the application developers guide.  

On Jun 7, 2017, at 10:38 AM, Michael Davidsaver <mdavidsaver@gmail.com> wrote:

On 06/07/2017 06:50 PM, Eric Norum wrote:
Why are timeouts for things like epicsEventWaitWithTImeout() limited to
1 hour?
This is for R3.15.4, but I suspect the code is the same in lots of versions.

Since at least 2000 (first occurrence I find).  The commit message
doesn't give any clues.

https://github.com/epics-base/epics-base/commit/8c60195f4b463bff42f6f967da8bc19d6f5ad11d#diff-583652b37e7f98cf7b720e489744ce88R57

Seems rather arbitrary, so I think this could be removed (or enlarged).


Replies:
Re: Arbitrary limit on timeouts? Johnson, Andrew N.
References:
Arbitrary limit on timeouts? Eric Norum
Re: Arbitrary limit on timeouts? Michael Davidsaver

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