4:25 a.m.
APPROVE 21.5
Will commit in a few days if there is no objection.
Vin, I don't know about implications for 21.4; I'll try to remember to
check before I commit.
I'd especially like feedback from people on the Windows platform;
Adrian had some trouble which I don't know was ever identified with a
patch to similar code in lstream.c. The semantics of the patch were
quite different, but it makes me nervous. :-)
>>>> "tbennett" == tbennett
<tbennett(a)nvidia.com> writes:
tbennett> Maybe the following patch will help you. It makes
tbennett> running subprocesses (eg: man) much faster for me. This
tbennett> patch was in XEmacs 21.5 somewhere around 21.5.19 I
tbennett> think, but was reverted a few versions back for some
tbennett> reason.
As promised, Tony! Any objections or changes to the ChangeLog you'd
like to make? NB: I did change the comment to C style.
2006-03-24 Tony Bennett <tbennett(a)nvidia.com>
* process-unix.c (Faccept_process_output): Reduce timeout.
*** src/process-unix.c~ Sat Mar 1 02:25:36 2003
--- src/process-unix.c Mon Jul 12 22:00:37 2004
***************
*** 1530,1536 ****
/* Buffer is full. Wait, accepting input;
that may allow the program
to finish doing output and read more. */
! Faccept_process_output (Qnil, make_int (1), Qnil);
/* It could have *really* finished, deleting the process */
if (NILP(p->pipe_outstream))
return;
--- 1530,1537 ----
/* Buffer is full. Wait, accepting input;
that may allow the program
to finish doing output and read more. */
! /* Faccept_process_output (Qnil, make_int (1), Qnil); */
! Faccept_process_output (Qnil, Qnil, make_int (10));
/* It could have *really* finished, deleting the process */
if (NILP(p->pipe_outstream))
return;
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
9:30 a.m.
New subject: [A21.5] Reduce timeout in Faccept_process_output
>>>> "sjt" == Stephen J Turnbull
<stephen(a)xemacs.org> writes:
sjt> I'd especially like feedback from people on the Windows
sjt> platform;
Oops. As Adrian points out on xemacs-beta, this has nothing to do
with Windows. I don't know anything about the Windows version of the
code, unfortunately.
sjt> 2006-03-24 Tony Bennett <tbennett(a)nvidia.com>
sjt> * process-unix.c (Faccept_process_output): Reduce timeout.
When I actually made the change I used C-x 4 a to generate the log,
and found out that it's actually in unix_send_process(). I've made
the correction in the workspace I'll be committing from.
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
5:18 p.m.
New subject: [A21.5] Reduce timeout in Faccept_process_output
SUPERSEDES APPROVE COMMIT 21.5 RECOMMEND 21.4
Vin: The patch applies as is to 21.4:
patching file src/ChangeLog
patching file src/process-unix.c
Hunk #1 succeeded at 1327 (offset -218 lines).
>>>> "sjt" == Stephen J Turnbull
<stephen(a)xemacs.org> writes:
sjt> As promised, Tony! Any objections or changes to the
sjt> ChangeLog you'd like to make? NB: I did change the comment
sjt> to C style.
sjt> 2006-03-24 Tony Bennett <tbennett(a)nvidia.com>
sjt> * process-unix.c (Faccept_process_output): Reduce timeout.
My apologies (mostly to Skip) for not getting it into the 21.5.26
release. Brain needs a patch, I think.... The rationale for delay
was that I wanted to think about implementing the strategy used in
process-nt.c here, too, but that seems like overkill for now.
The semantics are the same as the original patch. I've fixed the
reference in the changelog, added a comment about the increasing
timeout strategy in the code, and added some rationale to the
changelog per Tony's request.
Index: src/ChangeLog
===================================================================
RCS file: /pack/xemacscvs/XEmacs/xemacs/src/ChangeLog,v
retrieving revision 1.940
diff -u -r1.940 ChangeLog
--- src/ChangeLog 31 Mar 2006 19:20:45 -0000 1.940
+++ src/ChangeLog 1 Apr 2006 15:59:22 -0000
＠＠ -0,0 +1,7 ＠＠
+2006-03-23 Tony Bennett <tbennett(a)nvidia.com>
+
+ * process-unix.c (unix_send_process): Reduce timeout for
+ Faccept_process_output to 10ms. This dramatically speeds up many
+ functions that read from processes, eg, inferior interpreter
+ processes as in ilisp or python-mode.
+
Index: src/process-unix.c
===================================================================
RCS file: /pack/xemacscvs/XEmacs/xemacs/src/process-unix.c,v
retrieving revision 1.57
diff -u -r1.57 process-unix.c
--- src/process-unix.c 4 Feb 2005 04:06:34 -0000 1.57
+++ src/process-unix.c 1 Apr 2006 15:59:22 -0000
＠＠ -1545,10 +1545,13 ＠＠
}
while (Lstream_was_blocked_p (XLSTREAM (p->pipe_outstream)))
{
- /* Buffer is full. Wait, accepting input;
- that may allow the program
- to finish doing output and read more. */
- Faccept_process_output (Qnil, make_int (1), Qnil);
+ /* Buffer is full. Wait 10ms, accepting input; that may
+ allow the program to finish doing output and read more.
+ Used to be 1s, but that's excruciating. nt_send_process
+ uses geometrically increasing timeouts (up to 1s). This
+ might be a good idea here.
+ N.B. timeout_secs = Qnil is faster than Qzero. */
+ Faccept_process_output (Qnil, Qnil, make_int (10));
/* It could have *really* finished, deleting the process */
if (NILP(p->pipe_outstream))
return;
--
School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
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Stephen J. Turnbull