Ian - a good place to study j use of dylib in Darwin would be in
~/addons/data/jmf.ijs Maybe you can find happiness there.
Meanwhile, I'm a little unclear on what you are trying to do. I assume
you have a continuously available j task that picks up things to do from
some queue - but you don't want it to be in a dead loop checking the
queue. I run a task like that in my Linux server and it has the lines:
while. * 6!:3 ] 1 do.
if. (work to do) do.
massage some data (actually quite a lot... but sporadic)
end.
end.
This task runs as a #! jconsole shell and I just looked to see that it
has been running for 100 days and has accumulated 20 minutes and 15
seconds of CPU time (on a 400 Mhz pentium - so pretty small overhead).
Of course, the CPU usage is dependent on the work that gets done - but
since (as you pointed out in a different message) j is single threaded,
this seems to me to be a way to approach the kind of thing you seem to
be describing.
On 2012/01/05 09:54 , Ian Clark wrote:
> Thanks, David.
>
> But this uses 'dll'. AFAIK there's no comparable way of calling dylibs
> in Darwin.
>
> On Thu, Jan 5, 2012 at 5:44 PM, David Mitchell<[email protected]> wrote:
>> Here is a version that works with J602 and J701 jconsole. It does not work
>> with
>> jhs or jgtk. I have not tested it extensively and it may have side effects
>> or
>> bugs that I haven't found yet.
>>
>> http://www.jsoftware.com/jwiki/Scripts/WindowsTimer
>>
>> On 1/5/2012 8:27, Ian Clark wrote:
>>> How do I get a timer in j701 jhs (or jconsole)?
>>>
>>> I've been assuming wd (11!:0) doesn't work at all in j701 (in j602
>>> you'd do: 11!:0 'timer 3' for a callback in 3 secs).
>>>
>>> BTW J701 help (http://www.jsoftware.com/docs/help701/dictionary/dx011.htm)
>>> still refers to 11!:0 but I assume that's just because it's been
>>> overlooked...?
>>>
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