OpenDOF Project
void DOS_NodeDown ( void  )

Send a Node Down notification to the network, indicating that any operations with the node's Source ID or originating from the node's transport address should be cancelled.

This should be called at startup if there is a chance the same Source ID is being reused from a previous run (e.g., after reboot). This is automatically called for the default multicast address as part of DOS_Shutdown. The application should call this for transports where the default multicast address will not cause it to be sent.

DOSContext must be cleared, and the following fields may optionally be set prior to this call: Session, Address

Note
Specification DPP.3 states that the node should wait at least 16 seconds after this is sent to prevent operation aliasing problems in the network. It is the responsibility of the application to enforce this delay.
core-c-cos Version 7.0.1 Build 0
2018-02-08