Description:
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upsTestSpinLock-fifth OBJECT-TYPE
SYNTAX TestAndIncr
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A spin lock on the test subsystem. The spinlock is
used as follows.
Before starting a test, a manager-station should make
sure that a test is not in progress as follows:
try-again:
get (upsTestSpinLock)
while (upsTestResultsSummary == inProgress) {
/* loop while a test is running for another
manager */
short delay
get (upsTestSpinLock)
}
lock-value = upsTestSpinLock
/* no test in progress, start the test */
set (upsTestSpinLock = lock-value, upsTestId =
requested-test)
if (error-index == 1) { /* (upsTestSpinLock
failed) */
/* if problem is not access control, then
some other manager slipped in ahead of us
*/
goto try-again
}
if (error-index == 2) { /* (upsTestId) */
/* cannot perform the test */
give up
}
/* test started ok */
/* wait for test completion by polling
upsTestResultsSummary */
get (upsTestSpinLock, upsTestResultsSummary,
upsTestResultsDetail)
while (upsTestResultsSummary == inProgress) {
short delay
get (upsTestSpinLock, upsTestResultsSummary,
upsTestResultsDetail)
}
/* when test completes, retrieve any additional
test results */
/* if upsTestSpinLock == lock-value + 1, then
these are our test */
/* results (as opposed to another manager's */
The initial value of upsTestSpinLock at agent
initialization shall
be 1.(*)"
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iso(1)
