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Re: [lwip-users] LWIP Process Model confusion:

From: Rishi Khan
Subject: Re: [lwip-users] LWIP Process Model confusion:
Date: Sun, 14 Dec 2008 19:03:04 -0500

I don't think the core would have to free anything in the case of the threaded code. If you are a one machine system, don't actually copy the data in the mbox_post: Ignore the size.

If you are a multiprocess machine, you have to allocate the space in the sys_mbox_post code on the other client machine (or process), and it might be a little tricky. The sender's (or poster) side should be easy. I have to think about the recv/fetch side.

On Dec 14, 2008, at 3:31 PM, address@hidden wrote:

Rishi Khan wrote:
Does it really need to know the 'type' of message, or does it just need the size of the message.

Hmm, good idea, might be worth a try! But that would also mean that data taken out of an mbox must be explicitly freed (since it is duplicated by sending it through the mbox). This means there is code to be added to the core files.

Still, this might be the simplest way to achieve multiprocess- compatibility.


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