Send a message to the topic associated with the LBM source

Caution: It is not recommended to call this method from a context thread callback.
Warning (UME only): Calling this method from a context thread callback for stability and confirmation events could cause a deadlock.
Possible OR'd set of flag value include:
SRC_NONBLOCK, SRC_BLOCK, MSG_START_BATCH, MSG_END_BATCH, MSG_COMPLETE_BATCH, and MSG_FLUSHSRC_EVENT_UME_MESSAGE_STABLESRC_EVENT_UME_DELIVERY_CONFIRMATION
Exception | Condition |
---|---|
Certified delivery notification is not enabled | |
Invalid argument or unexpected operational behavior has been encountered by unmanaged LBM C layer function. |