Hi,
Please review the following small patch to improve the support for
prefixes in unified logging.
Instead of the previous format and value/callback, a prefix is now
defined as a function that receives the log buffer as argument,
allowing it to fill in an arbitrary (or empty!) prefix. (This enables
GCId-prefixing to be skipped when GCId is undefined, for example.)
Webrev:
http://cr.openjdk.java.net/~mlarsson/8142482/webrev.00/
Issue:
https://bugs.openjdk.java.net/browse/JDK-8142482
Thanks,
Marcus
