freebsd-ports/devel/p5-B-COW/pkg-descr
Stefan Eßer fb16dfecae Remove WWW entries moved into port Makefiles
Commit b7f05445c0 has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)
2022-09-07 23:58:51 +02:00

10 lines
587 B
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B::COW provides some naive additional B helpers to check the COW status of one
SvPV.
A COWed SvPV is sharing its string (the PV) with other SvPVs. It's a (kind of)
Read Only C string, that would be Copied On Write (COW). More than one SV can
share the same PV, but when one PV need to alter it, it would perform a copy of
it, decrease the COWREFCNT counter. One SV can then drop the COW flag when it's
the only one holding a pointer to the PV. The COWREFCNT is stored at the end of
the PV, after the the "\0". That value is limited to 255, when we reach 255, a
new PV would be created,