Re: TestAndIncr problem

On 18/01/2008, vsaavedra <vsaavedra@maisis.pt> wrote:
> I'm trying to implement a TestAndIncr object as a column in table.

So you need a separate spinlock object for each row of the table?
That feels a bit overkill - it's more common to have a single scalar
TestAndIncr object that controls the whole table.

There is a helper routine netsnmp_register_watched_spinlock()
which implements this behaviour (for a scalar MIB object).
All you have to do is provide the integer variable to hold the spinlock
value, and the helper does the rest.

See 'mibgroup/mibII/setSerialNo.c' for an example of this.

You might be able to use the helper's handler routine to implement
a column-based version of this, if you really must work at the level
of per-row granularity.




> This table as an OCTET STRING column, and I want to be able to increment the
> TestAndIncr object, if the column name is updated.

That's not how TestAndIncr works.
The value is incremented when the spinlock value itself is SET (successfully).
Not some other MIB object.

Please re-read the description of this syntax type for the defined behaviour.


Dave

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