The Trunk: Kernel-ct.1685.mcz

[email protected] Wed, 10 Jun 2026 13:23:22 0000

Newsgroups	gmane.comp.lang.smalltalk.squeak.general
Message-ID	<[email protected]>

Christoph Thiede uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-ct.1685.mcz

==================== Summary ====================

Name: Kernel-ct.1685
Author: ct
Time: 9 June 2026, 2:13:28.808754 am
UUID: 031940e3-22fe-45f8-a346-bcc675d245cd
Ancestors: Kernel-ct.1683

Documents limitation of Process>>priority: in older VMs that do not support primitive 567. Please review.

=============== Diff against Kernel-ct.1683 ===============

Item was changed:
  ----- Method: Process>>priority: (in category 'accessing') -----
  priority: anInteger
  	"Set the receiver's priority to anInteger. The primitive allows the VM to reschedule if and as necessary."
  	<primitive: 567 error: ec>
+ 	"Fallback code: This changes the priority of the receiver but does not trigger the VM to reschedule if another runnable process now has a higher priority. When running BlockClosure>>valueAt: or BlockClosure>>valueUnpreemptively in a VM that does not implement primitive 567, execution might not reschedule correctly when they return."
  	(anInteger between: Processor lowestPriority and: Processor highestPriority)
  		ifTrue: [priority := anInteger]
  		ifFalse: [self error: 'Invalid priority: ', anInteger printString]!

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