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cfdpclock - Online in the Cloud

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cfdpclock - CFDP daemon task for managing scheduled events




cfdpclock is a background "daemon" task that periodically performs scheduled CFDP
activities. It is spawned automatically by cfdpadmin in response to the 's' command that
starts operation of the CFDP protocol, and it is terminated by cfdpadmin in response to an
'x' (STOP) command.

Once per second, cfdpclock takes the following action:

First it scans all inbound file delivery units (FDUs). For each one whose check
timeout deadline has passed, it increments the check timeout count and resets the
check timeout deadline. For each one whose check timeout count exceeds the limit
configured for this node, it invokes the Check Limit Reached fault handling procedure.

Then it scans all outbound FDUs. For each one that has been Canceled, it cancels all
extant PDU bundles and sets transmission progress to the size of the file, simulating
the completion of transmission. It destroys each outbound FDU whose transmission is


"0" cfdpclock terminated, for reasons noted in the ion.log file. If this termination was
not commanded, investigate and solve the problem identified in the log file and use
cfdpadmin to restart cfdpclock.

"1" cfdpclock was unable to attach to CFDP protocol operations, probably because cfdpadmin
has not yet been run.

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