Nathan Scott 8ac8542b6e Handle interrupted sampling from within libpcp PDU transfers
This situation can arise if pcp-htop screen is resized right
at the same time sampling from pmcd(1) is happening.  Have a
couple more goes at it before giving up entirely; once there
is no data available though we cannot proceed into accessing
the sample result data structure (segv will result) so a new
short-circuit guard is added there also.
2021-10-05 15:53:18 +11:00
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