| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: using explicit_bzero |
| Date: | 2019-07-22 18:35:32 |
| Message-ID: | 9903.1563820532@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)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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