I have reverted to my former position.
There is something I don't understand about the RexxQueue class. It
seems counterintuitive to me.
Something in the area of the distinction between the name of the Queue
and the instance of the class.
The new method returns an instance that has a string value of the name
of the queue, which you are then
meant to supply as a handle to the other methods.
It might help to know whether there is intended to be a 1->1
relationship between instances of the RexxQueue class
and named Rexx external queues. Some of the methods seem to suggest a
1->1 relationship, others a serial
1->many relationship or a concurrent 1->many relationship.
Reading the above para I could make that clearer. is it that:
a) A RexxQueue instance can manage one Rexx named external queue
b) A RexxQueue instance can manage many Rexx named external queues,
but only one at a time or
c) A RexxQueue instance can manage many Rexx named external queues,
all at the same time
If someone could knock up a 10 line example of creating, populating,
pulling and deleting a RexxQueue
I could take it from there.
The manual definitely needs an example as I'm sure we can find a few
other users at least as
dense and obtuse as I am.
thanks,
Jon
2008/8/11 Rick McGuire <[EMAIL PROTECTED]>:
> busted!!!!!! :-)
>
> Rick
>
> On Mon, Aug 11, 2008 at 6:53 AM, Sahananda (Jon) Wolfers
> <[EMAIL PROTECTED]> wrote:
>> Thanks Rick,
>>
>> I will look into it! This is just a cunning way to show me that
>> learning c++ would be fun isn't it.
>>
>> Jon
>>
>> 2008/8/11 Rick McGuire <[EMAIL PROTECTED]>:
>>> John,
>>>
>>> Note that in 4.0, the clear method (probably should be "empty" to be
>>> consistent with the other collection classes) would be best
>>> implemented by C code using the RexxClearQueue() API I just added.
>>> The file in question is interpreter/classes/RexxQueueMethods.cpp. The
>>> code would be basically this:
>>>
>>>
>>>
>>> /********************************************************************************************/
>>> /* Rexx_clear_queue
>>> */
>>> /********************************************************************************************/
>>> RexxMethod0(int, rexx_clear_queue)
>>> {
>>>
>>> /* get the queue name */
>>> RexxObjectPtr queue_name = context->GetObjectVariable("NAMED_QUEUE");
>>> /* pull a line
>>> */
>>> return RexxClearQueue(context->ObjectToStringValue(queue_name));
>>> }
>>>
>>> You should be able to add that at the end of the RexxQueueMethods.cpp
>>> file, then in the RexxQueue ooRexx code, you reference that using:
>>>
>>> ::METHOD empty EXTERNAL 'LIBRARY REXX rexx_clear_queue'
>>>
>>> Rick
>>>
>>>
>>> On Mon, Aug 11, 2008 at 1:58 AM, Sahananda (Jon) Wolfers
>>> <[EMAIL PROTECTED]> wrote:
>>>> I could take on the rfe's for the RexxQueue class. Although the base
>>>> methods are written in C++ it looks like I could add MareArray and Clear in
>>>> Rexx in STreamClasses.orx.
>>>>
>>>> Only drawback is that I don't know what a Rexx External Queue is.
>>>>
>>>> I understand Queues (ie: the Queue Collection class) and from my VM days I
>>>> understand 'The Stack' which I use in oorexx by piping output to RxQueue
>>>> and
>>>> retrieve using parse pull.
>>>>
>>>> I've looked in the manuals and googled a bit. Can anyone give me a short
>>>> easy code sample using the RexxQueue class please.
>>>>
>>>> thanks,
>>>>
>>>> Jon
>>>>
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