Here is a very rough start on showing how to do a timer event for JHS.
jjs'setTimeout("jdoajax([],\"\",\"a=: 123\");",4000);'
Verb jjs executes javascript sentences. The setTimeout javascript sentence
runs its first arg (a javascript sentence) when 4 seconds has elapsed. The
\" sequence escapes the " and allows "s inside the quoted string.
The next step is to replace the a=: 123 J sentence with a call to your
timer event handler.
This solution is not complete because the ajax execution of the J sentence
is blocked if a J sentence is already running. This can be detected and
dealt with. This could be done by a more complicated jjs sentence that
requeues the setTimeout until it is allowed to execute. A better solution
would be that the core ajax framework recognize a blocked timer event and
to run it immediately after the blocking sentence has finished.
If the above meets your requirements except for the blocking problem I will
clean things up and enhance the ajax request framework to run a blocked
timer event.
On Thu, Jan 5, 2012 at 2:03 PM, Eric Iverson <eric.b.iver...@gmail.com>wrote:
> cd (calls to external libraries) works on all platforms and specifically J
> can use cd to call dylibs on Mac. However, the timer routine you referred
> to is windows only and I don't know of the mac equivalent. A dylib call is
> probably not the way to provide timer events for JHS regardless of server
> platform.
>
>
> On Thu, Jan 5, 2012 at 1:45 PM, David Mitchell <davidmitch...@att.net>wrote:
>
>> You are welcome, Ian.
>>
>> I am a bit curious about J support for dylibs. I currently do not have
>> any way
>> to try it myself, but the J DLL documentation does say:
>>
>> J can call procedures that are compiled in a shared library file. In
>> Windows
>> these files are called DLLs (dynamic link libraries) and have a .dll
>> extension.
>> In Linux they are called shared libraries or shared objects and have a .so
>> extension. In Mac they are called dynamic libraries and have a .dylib
>> extension.
>> The term DLL is used here for all platforms. A procedure in a DLL is
>> called by
>> its name and filename.
>>
>> It is true that there may not be dylib functionality for Darwin that
>> matches
>> what Windows has for timer usage, but I saw a function
>> "dispatch_source_set_timer" in the GCD reference from Apple that seemed
>> as if it
>> might be a start.
>>
>> On 1/5/2012 12:54, 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<davidmitch...@att.net>
>> 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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>> >>>
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>> >
>> ----------------------------------------------------------------------
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>>
>
>
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