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[ 源代码: libb-cow-perl  ]

软件包:libb-cow-perl(0.007-1 以及其他的)

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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,

标签: 软件开发: Perl 开发, 函数库, 实做语言: implemented-in::c, implemented-in::perl, 角色: 开发用函数库

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下载 libb-cow-perl

下载可用于所有硬件架构的
硬件架构 版本 软件包大小 安装后大小 文件
alpha (非官方移植版) 0.007-1+b2 8.9 kB95.0 kB [文件列表]
amd64 0.007-1+b2 8.9 kB43.0 kB [文件列表]
arm64 0.007-1+b2 8.9 kB95.0 kB [文件列表]
armel 0.007-1+b2 8.6 kB35.0 kB [文件列表]
armhf 0.007-1+b2 8.5 kB35.0 kB [文件列表]
hppa (非官方移植版) 0.007-1+b2 9.2 kB39.0 kB [文件列表]
i386 0.007-1+b2 8.9 kB43.0 kB [文件列表]
ia64 (非官方移植版) 0.007-1+b2 9.5 kB38.0 kB [文件列表]
m68k (非官方移植版) 0.007-1+b2 8.6 kB39.0 kB [文件列表]
mips64el 0.007-1+b2 8.9 kB96.0 kB [文件列表]
ppc64 (非官方移植版) 0.007-1+b2 9.2 kB96.0 kB [文件列表]
ppc64el 0.007-1+b2 9.1 kB95.0 kB [文件列表]
riscv64 0.007-1+b2 8.7 kB35.0 kB [文件列表]
s390x 0.007-1+b2 8.9 kB39.0 kB [文件列表]
sh4 (非官方移植版) 0.007-1+b2 8.8 kB95.0 kB [文件列表]
sparc64 (非官方移植版) 0.007-1+b2 8.9 kB1,056.0 kB [文件列表]
x32 (非官方移植版) 0.007-1+b2 8.8 kB43.0 kB [文件列表]