Date: Wed, 10 Nov 2010 00:12:13 -0800
From: YC
On Wed, Nov 10, 2010 at 12:00 AM, Taylor R Campbell
> wrote:
> I am completely lost in the documentation and implementation of ports.
> Is there a document giving a high-level overview of the design of the
> port ab
I am completely lost in the documentation and implementation of ports.
Is there a document giving a high-level overview of the design of the
port abstraction in Racket, and its rationale, ideally with motivating
examples of tasks requiring all the various bizarre knobs and buttons
of the abstractio
Date: Sun, 7 Nov 2010 19:01:40 -0700
From: Matthew Flatt
Here's the only potential problem that I see offhand. Imagine that
there are multiple `sync' steps in communicating with `t'. The relevant
events for each `sync' must be protected using
`with-thread-resume-evt', which mean
Date: Mon, 8 Nov 2010 01:31:45 +
From: Taylor R Campbell
What about a case of (thread-resume t (current-thread)) where t is not
^^^
needed for more than a known dynamic extent or for one sync operation?
Oops
Date: Sun, 7 Nov 2010 18:17:48 -0700
From: Matthew Flatt
So far, I don't think I've run into a case in practice where the second
argument to `thread-resume' wasn't `(current-thread)'.
What about a case of (thread-resume t (current-thread)) where t is not
needed for more than a known
(Sorry for the duplicate -- I sent from the wrong address the first
time.)
Date: Sun, 7 Nov 2010 14:27:11 -0700
From: Jay McCarthy
Read:
http://www.cs.utah.edu/plt/kill-safe/
I read that, and grepped through the code, and the Racket 5.0 sources.
Every use I found outside of some co
When might one pass a benefactor other than the current thread as the
second argument to THREAD-RESUME?
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Date: Sat, 10 Jul 2010 20:45:29 +
From: Taylor R Campbell
What should I do if I want to preclude only multiple uses of the
continuation, but still allow single uses even if they are non-local?
Sorry, should've spent half a minute thinking about that before making
my message
Date: Sat, 10 Jul 2010 07:42:56 -0600
From: Matthew Flatt
At Fri, 9 Jul 2010 14:56:16 +, Taylor R Campbell wrote:
> First, is there any document generally describing the rationale for
> the design of continuation barriers and advice about when to use them?
No, so her
(I am not subscribed to this list, so please cc me in replies.)
I have several questions about continuation barriers. I have tested
some examples in PLT Scheme v4.2.4, because that's what I have handy;
if the semantics has changed significantly in Racket, let me know
before wasting time with the
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