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ValueWait - wait for a test value to equal or exceed the database value
ValueWait monitors a datapoint by polling dbman for its value
once per second. The datapoint is polled for a maximum number of tries or
until the datapoint has met or exceeded the test value.
This function should
only be used on a database connection where no subscriptions have been
posted. If a parameter has been subscribed to and a change occurs while
this function is in use the resulting message from dbman will confuse operation.
rmtReqParAns(3rmt)
is used to communicate with dbman.
This function is part
of libmngr.
int ValueWait(
int DBchanAux,
CONFLIST *CFpTST,
double TestValue,
int Tries
);
The file descriptor of the dbman connection.
pointer
to the CONFLIST entry to use to obtain the tagname of the parameter to
monitor
The value to compare the database to.
The number of
times to test the state of the datapoint.
0 is returned on success.
1 is returned on failure.
errors from rmtReqParAns(3rmt)
are note checked.
libmngr(3mngr)
$Id: ValueWait.3,v 1.1 2002/04/07
18:35:52 kitchen Exp $
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