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Re: non blocking memory allocation api

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Re: non blocking memory allocation api

Subject: Re: non blocking memory allocation api
From: Mike Smith <email@hidden>
Date: Mon, 21 Mar 2005 01:52:20 -0800

Yes, I'm digging up old threads. But this one deserves a vigorous reply:

On Jan 26, 2005, at 11:53 PM, Parav Pandit wrote:

I am seaching for API in IOKit which provides non
blocking memory allocation functionallity.
But I think IOkit has only IOMalloc one,

is there any non blocking api available through i can
allocate memory, when i held the spin lock?


Don't do this.

Don't go looking for a non-blocking memory allocation primitive.

Fix your algorithm so that you don't need to do this with your spinlock held.

As a general rule, *never* call out of your code while you hold an exclusive lock.

 = Mike

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