TestAndIncr problem

I'm trying to implement a TestAndIncr object as a column in table.

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



In an initial scenario, the table will be empty. I create a row using

Snmpset ColumnName.1 s  "Name 1" lockObject i 0.



The lock object will be incremented to 1.



So, if I want to update ColumnName.1, I should use :

Snmpset ColumnName.1 s  "Name 1 updated" lockObject i 1





I managed to implement this behavior, in the initial scenario the lockObject
is incremented, but in the following updates the lockObject remains 1.



The definition for the lock (it's a leaf in a table) is :

lockObject OBJECT-TYPE

        SYNTAX  TestAndIncr

        MAX-ACCESS read-create

        STATUS  current





I created the agent using the dataset helper and alter the table handler.

In the MODE_SET_RESERVE1 I check if the value passed is equal to the one
stored in the mib.



In the MODE_SET_ACTION, I get the lockObject in the mib, increment it and
store the value in the mib:



setspinLock = *((long *) data->data.voidp);

setspinLock++;

*((long*)data->data.voidp) =  setspinLock;



This works fine the firs time.

The following tries, the value isn't increased. I put a simple debug and it
shows :



In the first time :

setspinLock : before increment: 0

setspinLock : after increment: 1

*((long*)data->data.voidp) = 1



In the next try:



setspinLock : before increment: 1

setspinLock : after increment: 2

*((long*)data->data.voidp) = 2



But, if I do a snmpset to the lock object, the value returned is 1.



Can you please tell what I'm doing wrong?

Thank you all.
























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