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* Handle interrupted sampling from within libpcp PDU transfersNathan Scott2021-10-051-1/+4
| | | | | | | | | 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.
* Update license headers to explicitly say GPLv2+Daniel Lange2021-09-221-1/+1
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* PCP: PCPMetric.[ch] MdouleSohaib2021-08-161-0/+177
Split the PCP Metric API (functions `Metric_*`) into their own module. as @BenBE suggested.

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