Robbie Gemmell resolved PROTON-985.
       Resolution: Fixed
    Fix Version/s:     (was: proton-c-future)

> Modify pn_transport_tick to explicitly use a monotonic clock, not wall clock 
> time
> ---------------------------------------------------------------------------------
>                 Key: PROTON-985
>                 URL: https://issues.apache.org/jira/browse/PROTON-985
>             Project: Qpid Proton
>          Issue Type: Improvement
>          Components: proton-c
>    Affects Versions: proton-0.10
>            Reporter: Ken Giusti
>            Assignee: Ken Giusti
>            Priority: Major
>             Fix For: proton-c-0.27.0
> The timestamp argument to pn_transport_tick is a pn_timestamp_t.  
> pn_timestamp_t implies real time (wall clock) in that it's expressed as a 
> time value based on epoch.
> As seen in QPID-6698, using a real time value for that argument can lead to 
> problems if the real time is adjusted (eg.  timezone, daylight savings, 
> drift).
> Instead, pn_transport_tick should be passed a monotonic clock source - one 
> that does not reflect changes in real time.
> All documentation and examples should be updated accordingly.

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