Iterator break-free ?

Iterator break-free ?

[Jay Bhukhanwala]

When traversing the entire tree using fdt_next_node, will the iterator
break if I change the blob structure, due to, say, addition/deletion
of a node/property or changing a property ?
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Re: Iterator break-free ?

[David Gibson]

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On Thu, Sep 11, 2014 at 10:21:11PM -0700, Jay Bhukhanwala wrote:
> When traversing the entire tree using fdt_next_node, will the iterator
> break if I change the blob structure, due to, say, addition/deletion
> of a node/property or changing a property ?

In general yes, it will break.

however there's one very common special case where the iteration will
keep working:
   if between one call to fdt_next_node() and the next, the *only*
   insertions or deletions are of nodes or properties within the node
   returned by the first call to fdt_next_node(), then you're ok.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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