sqInt sqShrinkMemoryBy(sqInt oldLimit, sqInt delta)
Parms:
oldLimit current end of oops memory limit
delta how much to shrink by
return: new limit, or old limit if failure
From: Interpreter
Why:
To shrink the oops space
Responsibility:
This logic comes from windows
MacIntosh
os-9/OSXCarbon
Just slide the pointer downwards, exploit sqGrowMemoryBy using a negative number
Cocoa:
See iPhone
iPhone
Just slide the pointer downwards, exploit sqGrowMemoryBy using a negative number
Unix
may use mmap to remap the memory size, but this is unlikely since that logic is turned off by default, otherwise
Just slide the pointer downwards
Windows
Use VirtualFree to free memory, if it fails return the old limit
BUGS
