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Re: Patch for fields of `struct buffer'
From: |
Richard Stallman |
Subject: |
Re: Patch for fields of `struct buffer' |
Date: |
Mon, 31 Jan 2011 14:38:15 -0500 |
One easy one is whether a new thread should inherit thread-local
bindings from its parent thread. Our initial implementation did
inherit, but later I found out that this is not common in the Lisp
world.
I.E., what should this display?
(defvar var 0)
(let ((var 1))
(run-in-thread (lambda () (message "%d" var))))
You are talking about ordinary local bindings. They would be
per-thread, but not specifically related to threading.
I would expect "thread-local bindings" to refer to a feature similar
to buffer-local bindings, and controlled through a similar set of
functions. I think these should never be copied to a new thread,
just as buffer-local bindings are never copied to a new buffer.
As for local bindings in the thread, it might make sense to copy them
into the new thread when the function is a lambda, and not copy them
when the function is a symbol. Or perhaps have two functions to start
a thread, `run-in-nested-thread' and `run-in-global-thread', to make
both options available.
Or maybe have a macro to start a new thread and copy the local bindings,
(with-temp-thread body...)
while using a function to start a new thread with no local bindings.
--
Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org
- Re: Patch for fields of `struct buffer', (continued)
- Re: Patch for fields of `struct buffer', Stefan Monnier, 2011/01/31
- Re: Patch for fields of `struct buffer', Tom Tromey, 2011/01/31
- Re: Patch for fields of `struct buffer', Stefan Monnier, 2011/01/31
- Re: Patch for fields of `struct buffer', David De La Harpe Golden, 2011/01/31
- Re: Patch for fields of `struct buffer', Tom Tromey, 2011/01/31
- Re: Patch for fields of `struct buffer', David De La Harpe Golden, 2011/01/31
- Re: Patch for fields of `struct buffer',
Richard Stallman <=
- Re: Patch for fields of `struct buffer', Richard Stallman, 2011/01/31
- Re: Patch for fields of `struct buffer', Tom Tromey, 2011/01/31
- Re: Patch for fields of `struct buffer', Tom Tromey, 2011/01/31
- Re: Patch for fields of `struct buffer', Eli Zaretskii, 2011/01/31
- Re: Patch for fields of `struct buffer', Stefan Monnier, 2011/01/31
- Re: Patch for fields of `struct buffer', Tom Tromey, 2011/01/31
- Re: Patch for fields of `struct buffer', Stefan Monnier, 2011/01/31