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net/art: add debug hooks to strideTable

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Updates #7781

Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson 2023-07-13 12:25:08 -07:00 committed by Dave Anderson
parent fcf4d044fa
commit ac657caaf1
2 changed files with 17 additions and 4 deletions
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5
net/art/stride_table.go
View File

@ -13,6 +13,11 @@ import (
"strings" "strings"
) )
const (
debugStrideInsert = false
debugStrideDelete = false
)
// strideEntry is a strideTable entry. // strideEntry is a strideTable entry.
type strideEntry[T any] struct { type strideEntry[T any] struct {
// prefixIndex is the prefixIndex(...) value that caused this stride entry's // prefixIndex is the prefixIndex(...) value that caused this stride entry's

16
net/art/stride_table_test.go
View File

@ -52,11 +52,15 @@ func TestStrideTableInsert(t *testing.T) {
slow := slowTable[int]{pfxs} slow := slowTable[int]{pfxs}
fast := strideTable[int]{} fast := strideTable[int]{}
t.Logf("slow table:\n%s", slow.String()) if debugStrideInsert {
t.Logf("slow table:\n%s", slow.String())
}
for _, pfx := range pfxs { for _, pfx := range pfxs {
fast.insert(pfx.addr, pfx.len, pfx.val) fast.insert(pfx.addr, pfx.len, pfx.val)
t.Logf("after insert %d/%d:\n%s", pfx.addr, pfx.len, fast.tableDebugString()) if debugStrideInsert {
t.Logf("after insert %d/%d:\n%s", pfx.addr, pfx.len, fast.tableDebugString())
}
} }
for i := 0; i < 256; i++ { for i := 0; i < 256; i++ {
@ -122,11 +126,15 @@ func TestStrideTableDelete(t *testing.T) {
slow := slowTable[int]{pfxs} slow := slowTable[int]{pfxs}
fast := strideTable[int]{} fast := strideTable[int]{}
t.Logf("slow table:\n%s", slow.String()) if debugStrideDelete {
t.Logf("slow table:\n%s", slow.String())
}
for _, pfx := range pfxs { for _, pfx := range pfxs {
fast.insert(pfx.addr, pfx.len, pfx.val) fast.insert(pfx.addr, pfx.len, pfx.val)
t.Logf("after insert %d/%d:\n%s", pfx.addr, pfx.len, fast.tableDebugString()) if debugStrideDelete {
t.Logf("after insert %d/%d:\n%s", pfx.addr, pfx.len, fast.tableDebugString())
}
} }
toDelete := pfxs[:50] toDelete := pfxs[:50]