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Re: "Handles don't move on Mac OS X"

On Jul 28, 2005, at 12:07 PM, David Duncan wrote:

You shrink it with SetHandleSize() first.

h = NewHandle( 1000 );
SetHandleSize( h, 100 );
SetHandleSize( h, 1000 ); <- no allocation necessary.


There is also the potential that your original allocation was rounded up. I think the current threshold is 12K - allocations greater than that are page rounded, so if you asked for say 13K, then your allocation would be 16K - if you never grow beyond 16K the handle won't move.

Have we crossed back over the line, yet, into implementation details that can't be counted on?

I'm willing to believe there is documentation saying "handles in Mac OS X will never move unless you grow them, so you pretty much never need HLock any more" but is anything beyond that actually guaranteed?

Cheers,

--Dave

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 >Re: ResolveAlias leads to crash (From: Laurence Harris <email@hidden>)
 >Re: ResolveAlias leads to crash (From: David Duncan <email@hidden>)



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