RFR: 8349083: Factor out filename handling code from logging

Tue Feb 4 13:53:12 UTC 2025

On Tue, 4 Feb 2025 10:38:10 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Sorry then I have misunderstood the refactoring of this. I was expecting "%t" to always mean the VM start time - otherwise what time is it?
>
> The time the file was created? The time the file name was "constructed"? Or ?

The API does not dictate what timestamp value to use, caller can pass in the timestamp it wants to use. When no value is provided, it uses "current timestamp".

In followup CRs, I don't intend to change the current timestamp sources if there are any.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23410#discussion_r1941210801