Re: NSMutableData and Pinned Memory buffers..
Re: NSMutableData and Pinned Memory buffers..
- Subject: Re: NSMutableData and Pinned Memory buffers..
- From: Melissa J Turner <email@hidden>
- Date: Thu, 13 Dec 2012 16:33:00 -0800
On Dec 13, 2012, at 4:28 PM, Kevin Perry <email@hidden> wrote:
>
> On Dec 13, 2012, at 4:24 PM, Greg Parker <email@hidden> wrote:
>
>> On Dec 13, 2012, at 4:13 PM, Robert Monaghan <email@hidden> wrote:
>>> I went ahead and created a really crude subclass of NSMutableData. It seems to work for my situation.
>>> Attached is the code, for posterity. (I am sure I won't be the only one working around this.)
>>>
>>> Any suggestions to make this a bit more "Proper" are welcome.
>>
>> If that's all you need then you should wrap the buffer in an immutable NSData. NSData won't mind if you poke directly at the contents of the buffer.
>
> Except that he's probably expecting to be able to invoke -mutableBytes and modify the buffer's contents without changing the length. Immutable NSData objects don't respond to -mutableBytes.
There's no reason he needs to invoke -mutableBytes. For his purposes, -bytes would do just as well, since the length won't be changing.
+Melissa
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