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тАО03-30-2011 03:03 AM
тАО03-30-2011 03:03 AM
I do some number of
SYS$QIO(......)
without waiting for complete.
Can I get a number of noncompleted QIO somehere in program when needed?
Solved! Go to Solution.
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тАО03-30-2011 03:29 AM
тАО03-30-2011 03:29 AM
Solutionno. Not from the program itself. You need to do your own counting of the outstanding QIOs.
You could possibly see them with SDA> SHOW DEVICE x (if your QIOs are still outstanding on that device) or indirectly via SDA> SHOW PROC as a difference between either Buffered (or Direct) I/O count/limit.
Volker.
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тАО03-30-2011 03:51 AM
тАО03-30-2011 03:51 AM
Re: get number SYS$QIO calls for channel
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тАО03-30-2011 04:13 AM
тАО03-30-2011 04:13 AM
Re: get number SYS$QIO calls for channel
Dan
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тАО03-30-2011 12:40 PM
тАО03-30-2011 12:40 PM
Re: get number SYS$QIO calls for channel
> I do some number of
>SYS$QIO(......)
>without waiting for complete.
Hang on! You MUST be issuing each $QIO with an unique IOSB and buffer, yes? (This is NOT negotiable, if they're not unique, your I/Os WILL break).
Since you therefore have to manage the allocation and deallocation of IOSBs and buffers, there's a place in your code to count and keep track of outstanding buffers, which is the same as tracking outstanding $QIOs.
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тАО03-30-2011 01:39 PM
тАО03-30-2011 01:39 PM
Re: get number SYS$QIO calls for channel
I agree with John. Each simultaneous IO needs an individual IOSB. It is a straightforward matter to make the IOSB part of a larger structure that in turn is counted (or part of a chain).
Checking quotas is not reliable, as they are process-wide and may reflect other operations that are independent of your code.
- Bob Gezelter, http://www.rlgsc.com
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тАО04-04-2011 09:11 AM
тАО04-04-2011 09:11 AM
Re: get number SYS$QIO calls for channel
What kind of device are you writting to?
I seem to remember long ago I wrote a quick little program to check mailbox queues.
Have Fun,
twhjr