[Vm-dev] CogMT

[gettimothy]

For us clueless end users and application tier coders, what will we see when this is done?


A folllow up newbie question...

Squeak in morphic is, I assume, single threaded -- Test runner must run to completion before morphic events are processed-- for example.

Does this MT FFI create a possibility of  two xterm based Squeeak REPLs  interacting , correctly, with Cog/Spur ?





---- On Sat, 31 Jul 2021 15:13:15 -0400 bera.clement at gmail.com wrote ----


It's about threaded FFI implemented in the VM.


On Thu, Jul 29, 2021 at 4:29 PM Marcel Taeumel <marcel.taeumel at hpi.de> wrote:

 
Hi all!


Here is a rather broad question: What is "CogMT" about? For whom are those multiple threads (MT)? :-)


The only build configuration I can find is build.linux64ARMv8/squeak.cogmt.spur. There is an issue with the type of sqOSSemaphore. That got me interested in the idea of CogMT ... which predates ARMv8 by a lot, right?


Best,
Marcel


*** 


2021-07-29T11:17:34.6297654Z In file included from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogitARMv8.c:16,
2021-07-29T11:17:34.6305778Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogit.c:11:
2021-07-29T11:17:34.6312562Z /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/platforms/unix/vm/sqPlatformSpecific.h:75:4: error: conflicting types for 'sqOSSemaphore'
2021-07-29T11:17:34.6323676Z   } sqOSSemaphore;
2021-07-29T11:17:34.6324255Z     ^~~~~~~~~~~~~
2021-07-29T11:17:34.6325724Z In file included from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/platforms/Cross/vm/sqMemoryAccess.h:472,
2021-07-29T11:17:34.6327528Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/platforms/unix/vm/sqPlatformSpecific.h:35,
2021-07-29T11:17:34.6329210Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogitARMv8.c:16,
2021-07-29T11:17:34.6330958Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogit.c:11:
2021-07-29T11:17:34.6332629Z /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/platforms/unix/vm/sqPlatformSpecific.h:75:4: note: previous declaration of 'sqOSSemaphore' was here
2021-07-29T11:17:34.6333826Z   } sqOSSemaphore;
2021-07-29T11:17:34.6334219Z     ^~~~~~~~~~~~~
2021-07-29T11:17:34.9588384Z In file included from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/platforms/Cross/vm/dispdbg.h:8,
2021-07-29T11:17:34.9589908Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogitARMv8.c:19,
2021-07-29T11:17:34.9591283Z                  from /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogit.c:11:
2021-07-29T11:17:34.9593124Z /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogitARMv8.c: In function 'allMachineCodeObjectReferencesValid':
2021-07-29T11:17:34.9605356Z /home/runner/work/opensmalltalk-vm/opensmalltalk-vm/spur64src/vm/cogitARMv8.c:7855:52: warning: passing argument 2 of 'mapForperformUntilarg' from incompatible pointer type [-Wincompatible-pointer-types]
2021-07-29T11:17:34.9607673Z     if (!(asserta((mapForperformUntilarg(cogMethod, checkIfValidOopRefAndTargetpccogMethod, cogMethod)) == 0))) {
2021-07-29T11:17:34.9608918Z                                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




--

Clément Béra
https://clementbera.github.io/
https://clementbera.wordpress.com/
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