Re: using explicit_bzero - Mailing list pgsql-hackers

From Tom Lane
Subject Re: using explicit_bzero
Date
Msg-id 9903.1563820532@sss.pgh.pa.us
Whole thread Raw
In response to Re: using explicit_bzero  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
Responses Re: using explicit_bzero  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
List pgsql-hackers
Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> On 2019-07-18 00:45, Tom Lane wrote:
>> +1 for using the C11-standard name, even if that's not anywhere
>> in the real world yet.

> ISTM that a problem is that you cannot implement a replacement
> memset_s() as a wrapper around explicit_bzero(), unless you also want to
> implement the bound checking stuff.  (The "s"/safe in this family of
> functions refers to the bound checking, not the cannot-be-optimized-away
> property.)  The other way around it is easier.

Oh, hm.

> Also, the "s" family of functions appears to be a quagmire of
> controversy and incompatibility, so it's perhaps better to stay away
> from it for the time being.

Fair enough.

            regards, tom lane



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