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Inside Macintosh: Memory /

Chapter 2 - Memory Manager / Memory Manager Reference

Memory Manager Routines

Grow-Zone Operations

You can implement a grow-zone function that the Memory Manager calls when it cannot fulfill a memory request. You should use the grow-zone function only as a last resort to free memory when all else fails. For explanations of how grow-zone functions work and an example of a memory-management scheme that uses a grow-zone function, see the discussion of low-memory conditions in the chapter "Introduction to Memory Management" in this book.

The SetGrowZone procedure specifies which function the Memory Manager should use for the current zone. The grow-zone function should call the GZSaveHnd function to receive a handle to a relocatable block that the grow-zone function must not move
or purge.

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Subtopics

SetGrowZone

GZSaveHnd