RFR(s): 8223313: Use handshakes for CountStackFrames.

[Reingruber, Richard]

Hi Robbin,

Looks good. Not a reviewer, though.

I like the change also, as it makes crashing because of a racing resume impossible.

Best regards,
Richard.

-----Original Message-----
From: hotspot-runtime-dev <hotspot-runtime-dev-bounces at openjdk.java.net> On Behalf Of Robbin Ehn
Sent: Mittwoch, 15. Mai 2019 13:17
To: hotspot-runtime-dev at openjdk.java.net
Subject: RFR(s): 8223313: Use handshakes for CountStackFrames.

Hi all please review.

This change is part of parent issue:
Utilize handshakes instead of is_thread_fully_suspended
https://bugs.openjdk.java.net/browse/JDK-8223312

Issue:
https://bugs.openjdk.java.net/browse/JDK-8223313
Change-set:
http://cr.openjdk.java.net/~rehn/8223313/webrev/

The only test using this seems to be CountStackFramesAtExit.java which passes fine.

Thanks, Robbin