RFR: 8286180: Enable construction of LogStreamImpl from LogMessageImpl [v5]

[Johan Sjölén]

On Tue, 24 May 2022 07:08:15 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Johan Sjölén has updated the pull request incrementally with three additional commits since the last revision:
>> 
>>  - Use unary not instead of comparing to false
>>  - Sort includes
>>  - Style changes
>
> src/hotspot/share/logging/logStream.hpp line 160:
> 
>> 158:   const size_t minimum_capacity_needed = _pos + len + 1;
>> 159:   try_ensure_cap(minimum_capacity_needed);
>> 160:   // try_ensure_cap may not have enlarged the capacity to the full requested
> 
> Would it be worth having `try_ensure_cap` return a boolean to indicate whether it was able to  expand to the size requested?

I did this and also took the time to refactor `try_ensure_cap`, I think it reads more easily now.

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PR: https://git.openjdk.java.net/jdk/pull/8748