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[ Bron: libb-cow-perl  ]

Pakket: libb-cow-perl (0.007-1 en anderen)

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additional B helpers to check COW status

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 "\0".

That value is limited to 255, after that a new PV would be created,

Tags: Softwareontwikkeling: Ontwikkelen in Perl, Bibliotheken, Implemented in: implemented-in::c, implemented-in::perl, Role: Development Library

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libb-cow-perl downloaden

Pakket downloaden voor alle beschikbare platforms
Platform Versie Pakketgrootte Geïnstalleerde grootte Bestanden
alpha (unofficial port) 0.007-1+b2 8,9 kB95,0 kB [overzicht]
amd64 0.007-1+b2 8,9 kB43,0 kB [overzicht]
arm64 0.007-1+b2 8,9 kB95,0 kB [overzicht]
armel 0.007-1+b2 8,6 kB35,0 kB [overzicht]
armhf 0.007-1+b2 8,5 kB35,0 kB [overzicht]
hppa (unofficial port) 0.007-1+b2 9,2 kB39,0 kB [overzicht]
i386 0.007-1+b2 8,9 kB43,0 kB [overzicht]
ia64 (unofficial port) 0.007-1+b2 9,5 kB38,0 kB [overzicht]
m68k (unofficial port) 0.007-1+b2 8,6 kB39,0 kB [overzicht]
mips64el 0.007-1+b2 8,9 kB96,0 kB [overzicht]
ppc64 (unofficial port) 0.007-1+b2 9,2 kB96,0 kB [overzicht]
ppc64el 0.007-1+b2 9,1 kB95,0 kB [overzicht]
riscv64 0.007-1+b2 8,7 kB35,0 kB [overzicht]
s390x 0.007-1+b2 8,9 kB39,0 kB [overzicht]
sh4 (unofficial port) 0.007-1+b2 8,8 kB95,0 kB [overzicht]
sparc64 (unofficial port) 0.007-1+b2 8,9 kB1.056,0 kB [overzicht]
x32 (unofficial port) 0.007-1+b2 8,8 kB43,0 kB [overzicht]