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global-functions: $NetMask6: implement simple caching

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Christian Hesse 2025-10-16 15:13:14 +02:00
parent a9e4702346
commit 78e2cb2d47
1 changed files with 13 additions and 1 deletions
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14
global-functions.rsc
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@ -1008,13 +1008,25 @@
:global MAX;
:global MIN;
:global NetMask6Cache;
:if ([ :typeof ($NetMask6Cache->$CIDR) ] = "ip6") do={
:return ($NetMask6Cache->$CIDR);
}
:if ([ :typeof $NetMask6Cache ] = "nothing") do={
:set NetMask6Cache ({});
}
:local Mask "";
:for I from=0 to=7 do={
:set Mask ($Mask . \
[ :convert from=num to=hex (0xffff - (0xffff >> [ :tonum [ $MIN [ $MAX ($CIDR - (16 * $I)) 0 ] 16 ] ])) ] . \
[ $IfThenElse ($I < 7) ":" ]);
}
:return [ :toip6 $Mask ];
:set Mask [ :toip6 $Mask ];
:set ($NetMask6Cache->$CIDR) $Mask;
:return $Mask;
}
# prepare NotificationFunctions array