[Coco] OS-9 environment variables?

[Roger Taylor]

At 11:08 AM 4/15/2009, you wrote:
>Non-6809 OS-9 versions do have environment variable space.
>
>It would be trivial to write a getenv/setenv library... How soon would
>you need it?

That's a nice offer.  No major rush!

Is the data guaranteed to be there after hitting Reset?  I know 
nothing is truly guaranteed, but you get the idea.  Some untoucable 
space, and I'm sure there's a lot there right now without having to 
make the environment routines, but it sure would be nice to have them 
persist across a Reset, and just have the routines in the first place 
so programs can at least share a few pieces of information in style.  :)








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>On Apr 15, 2009, at 11:04 AM, Roger Taylor <operator at coco3.com> wrote:
>
>>At 10:37 PM 4/14/2009, you wrote:
>>>On Apr 14, 2009, at 10:30 PM, Roger Taylor wrote:
>>>
>>>>Is there a way in OS-9 to store a few bytes or a string from one
>>>>module and access that data from another module by nickname or some
>>>>other global handle?
>>>
>>>There is a DATA MODULE type, where the body of the module can be
>>>linked to from multiple processes, then each gets a pointer and
>>>access
>>>to the body area and can read/write that data. That is the OS-9
>>>mechanism for data sharing.
>>>
>>>You can fix the CRC and save the module out, load it on reboot, and
>>>the variables would be back.
>>>
>>>I should write some code for that. (Semaphores, I am not sure of,
>>>under OS-9/6809.)
>>>
>>>Boisy, you know?
>>
>>
>>
>>
>>I think OS-9 should have had some SetEnv and GetEnv routines a long
>>time ago.  One of the seed modules that are still there after you
>>hit reset could just open up some static space, just enough to not
>>hurt the os9boot size issue but to allow 4 to 8 variables to be set
>>by nickname and retreived the same.  I guess this would involve
>>adding 2 new system calls?
>>
>>
>>
>>
>>
>>
>>--
>>Roger Taylor
>>
>>http://www.wordofthedayonline.com
>>
>>
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>
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-- 
Roger Taylor

http://www.wordofthedayonline.com