RFR: 8229517: Support for optional asynchronous/buffered logging [v17]

[Xin Liu]

On Fri, 21 May 2021 05:18:14 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Xin Liu has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Update according to reviewer's feedback.
>
> src/hotspot/share/logging/logAsyncWriter.cpp line 76:
> 
>> 74: 
>> 75: // LogMessageBuffer consists of a multiple-part/multiple-line messsages.
>> 76: // the mutex here gurantees its integrity.
> 
> typo: gurantees -> guarantees

Reminder for myself: should replace Mutex with lock.  Implementation has changed.

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PR: https://git.openjdk.java.net/jdk/pull/3135