| From: Thomas Dickey <[EMAIL PROTECTED]>
| I just tried again, but still no runaway. But it's a couple years old:
|
| Linux bloatware 2.2.16 #8 SMP Fri Dec 8 18:02:22 EST 2000 i686 unknown
|
| -rwxr-xr-x 1 root root 1013224 Mar 21 2000 libc-2.1.3.so
|
| (I recall seeing some discussion over the past few years regarding differing
| implementation of select/poll, so perhaps it's an improvement ;-)
Might be worth doing an strace. On RHL8.0, I get:
select(5, [3 4], [], NULL, {0, 0}) = 1 (in [3], left {0, 0})
select(4, [3], [], [], {0, 0}) = 1 (in [3], left {0, 0})
select(4, [3], [], [], {0, 0}) = 1 (in [3], left {0, 0})
select(4, [3], [], [], {0, 0}) = 1 (in [3], left {0, 0})
Notice that each of these select calls has a timeout specified, and
that timeout is 0 seconds. So these calls never block. Besides that,
there is something available on file descriptor 3 but it is never
being accessed.
What does strace show on your older system?
| > | I'm using
| > | a test-screen in vttest to exercise this feature.
| >
| > Do you mean the feature of hanging, or the feature used properly?
|
| the latter. With Redhat 8.0, I was able to make it run away with a few
| dozen clicks in that test screen.
That sounds bad. I have used JOVE full time for almost 20 years and
usually hit this problem when I lose contact with the machine running
JOVE (think ssh in an xterm).
On the other hand, the ugly echo & click hangs xterm on my machines
first time every time.
| > What do you think about the approach I suggested (act as if a default
| > CSI...T sequence had been received until the real one is)? Perhaps
| > the default should only be used after some timeout.
|
| it's not entirely clear to me what the sequence would be here.
Two obvious ones: the whole xterm region, or an empty region at the
point of the cursor. I'd vote for the empty region: no information
about a subsequent click is lost (the answer will be forced to be the
long form).
Clearly func should be non zero in either case: we don't want to
cancel the mode.
I do suggest that the default only be installed after a brief timeout.
How long? A tenth of a second feels about right.
I also suggest that the default be replaced if and when the explicit
CSI...T sequence is received.
There are other ways to skin this cat. For example, after a longer
timeout, just exit the mode.
Thanks for looking at this,
Hugh Redelmeier
[EMAIL PROTECTED] voice: +1 416 482-8253
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