forked from TrueCloudLab/frostfs-node
48 lines
990 B
Go
48 lines
990 B
Go
package loadroute
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import (
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"bytes"
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"errors"
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"github.com/nspcc-dev/neofs-sdk-go/container"
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)
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var errWrongRoute = errors.New("wrong route")
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// CheckRoute checks if the route is a route correctly constructed by the builder for value a.
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//
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// Returns nil if route is correct, otherwise an error clarifying the inconsistency.
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func CheckRoute(builder Builder, a container.SizeEstimation, route []ServerInfo) error {
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for i := 1; i < len(route); i++ {
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servers, err := builder.NextStage(a, route[:i])
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if err != nil {
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return err
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} else if len(servers) == 0 {
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break
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}
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found := false
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for j := range servers {
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if servers[j] == nil {
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// nil route point means that
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// (i-1)-th node in the route
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// must, among other things,
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// save the announcement to its
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// local memory
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continue
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}
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if bytes.Equal(servers[j].PublicKey(), route[i].PublicKey()) {
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found = true
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break
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}
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}
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if !found {
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return errWrongRoute
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}
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}
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return nil
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}
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