func (sm *StackMachine) testLocality() {
tr, e := db.CreateTransaction()
if e != nil {
panic(e)
}
tr.Options().SetReadSystemKeys()
boundaryKeys, e := db.LocalityGetBoundaryKeys(fdb.KeyRange{fdb.Key(""), fdb.Key("\xff\xff")}, 0, 0)
if e != nil {
panic(e)
}
for i := 0; i < len(boundaryKeys)-1; i++ {
start := boundaryKeys[i]
end := tr.GetKey(fdb.LastLessThan(boundaryKeys[i+1])).MustGet()
startAddresses := tr.LocalityGetAddressesForKey(start).MustGet()
endAddresses := tr.LocalityGetAddressesForKey(end).MustGet()
for _, address1 := range startAddresses {
found := false
for _, address2 := range endAddresses {
if address1 == address2 {
found = true
break
}
}
if !found {
panic("Locality not internally consistent.")
}
}
}
}
func GetLastKeyFuture(tr KeyReader, space subspace.Subspace) *LastKeyFuture {
_, end := space.FDBRangeKeys()
key := tr.GetKey(fdb.LastLessThan(end))
return &LastKeyFuture{key, space}
}