[crac] RFR: Report checkpoint processing to jcmd [v31]

[Anton Kozlov]

On Thu, 3 Nov 2022 15:52:26 GMT, Ilarion Nakonechnyy <inakonechnyy at openjdk.org> wrote:

>> pass output stream from diagnosticCommand.cpp through java code into os_linux.cpp::VM_crac::doit()
>
> Ilarion Nakonechnyy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Style fix

Marked as reviewed by akozlov (Lead).

src/hotspot/share/services/diagnosticCommand.cpp line 1062:

> 1060:         tty->print("%s", output_buf.as_string());
> 1061:       } else {
> 1062:         output()->print("%s", output_buf.as_string());

Nit-picking: it looks like you may avoid the intermediate buffer by choosing a stream in advance

outputStream stream = ... ? output() : tty
stream->println("An exception during a checkpoint operation:");
stream->println("%s", out);

-------------

PR: https://git.openjdk.org/crac/pull/10