Compaq AAR04BCTE - Manual (Page 73)

eSNMP API Routines
esnmp_are_you_there
esnmp_are_you_there
Requests the master agent to report immediately that it is up and functioning.
Format
int esnmp_are_you_there ( ) ;
Description
The esnmp_are_you_there routine does not block waiting for a response. The
routine is intended to cause the master agent to reply immediately. The response
should be processed by calling the
esnmp_poll routine.
If a response is not received within the timeout period, the application code
should restart the eSNMP protocol by calling the
esnmp_init routine. No timers
are maintained by the eSNMP library.
Return Values
ESNMP_LIB_OK The request was sent.
ESNMP_LIB_LOST_
CONNECTION The request cannot be sent because the master
agent is down.
eSNMP API Routines 5–15