[coldsync-hackers] Regression testing / scripting POSE

[Michael Hope <michael.hope@starfish.com>]

Hello all.

I dont know if this has been discussed, but I thought you might be 
interested in the scripting capabilities of POSE for testing coldsync.  I 
only recently came across this, and have found no reference to it on the 
net, but there are a set of libraries in the Scripting/ directory of the 
latest POSE that let you run arbitrary commands via RPC, including enough 
support to start a serial sync or a network sync.

I was also wondering if anyone can recommend a reference for the HotSync 
protocol (DLP and below).  I'm unsure about how the SLP XID and 
fragmentation in PADP tie together, and how error handling should be 
implemented.  libpalm.texi covers some of this, but not the interesting 
parts :)

This is what I currently understand:
1.  All ACKs to the fragments contain the XID of the first fragment, and 
not the XID of the just sent fragment.  Does this mean that all fragments 
should have the same XID? (Seems silly)
2.  Retransmission should occur after 2s.  According to Kevin Flynn in 
"UNIX and Pilots part IV: The PADP Layer" [Handheld Systems 5.4 1997], its 
quite random.  Basically:
    a.  Losing a packet or ack during the middle of transmission (ie LAST 
is not set) means a retransmit and an ACK from the Pilot.
    b.  Losing the ACK to the last fragment (LAST set) means that the 
starting fragment of the response should be treated as the ACK.  The other 
end should not ACK a duplicate last fragment.

-- Michael Hope


-- Michael


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