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net/art: document valid values of strideTable.prefix

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Updates #7781

Signed-off-by: David Anderson <danderson@tailscale.com>
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David Anderson 2023-07-24 11:07:09 -07:00 committed by Dave Anderson
parent 736a44264f
commit de5c6ed4be
1 changed files with 5 additions and 2 deletions
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net/art/stride_table.go
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@ -38,8 +38,11 @@ type strideEntry[T any] struct {
// The leaves of the binary tree are host routes (/8s). Each parent is a // The leaves of the binary tree are host routes (/8s). Each parent is a
// successively larger prefix that encompasses its children (/7 through /0). // successively larger prefix that encompasses its children (/7 through /0).
type strideTable[T any] struct { type strideTable[T any] struct {
// prefix is the prefix represented by the 0/0 route of this strideTable. It // prefix is the prefix represented by the 0/0 route of this
// is used in multi-level tables to support path compression. // strideTable. It is used in multi-level tables to support path
// compression. All strideTables must have a valid prefix
// (non-zero value, passes IsValid()) whose length is a multiple
// of 8 (e.g. /8, /16, but not /15).
prefix netip.Prefix prefix netip.Prefix
// entries is the nodes of the binary tree, laid out in a flattened array. // entries is the nodes of the binary tree, laid out in a flattened array.
// //