forked from TrueCloudLab/frostfs-node
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package netmap
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import (
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
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"github.com/nspcc-dev/neofs-node/pkg/morph/event"
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)
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// NewEpoch is a new epoch Neo:Morph event.
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type NewEpoch struct {
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num uint64
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// txHash is used in notary environmental
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// for calculating unique but same for
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// all notification receivers values.
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txHash util.Uint256
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}
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// MorphEvent implements Neo:Morph Event interface.
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func (NewEpoch) MorphEvent() {}
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// EpochNumber returns new epoch number.
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func (s NewEpoch) EpochNumber() uint64 {
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return s.num
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}
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// TxHash returns hash of the TX with new epoch
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// notification.
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func (s NewEpoch) TxHash() util.Uint256 {
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return s.txHash
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}
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// ParseNewEpoch is a parser of new epoch notification event.
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//
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// Result is type of NewEpoch.
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func ParseNewEpoch(e *state.ContainedNotificationEvent) (event.Event, error) {
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params, err := event.ParseStackArray(e)
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if err != nil {
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return nil, fmt.Errorf("could not parse stack items from notify event: %w", err)
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}
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if ln := len(params); ln != 1 {
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return nil, event.WrongNumberOfParameters(1, ln)
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}
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prmEpochNum, err := client.IntFromStackItem(params[0])
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if err != nil {
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return nil, fmt.Errorf("could not get integer epoch number: %w", err)
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}
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return NewEpoch{
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num: uint64(prmEpochNum),
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txHash: e.Container,
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}, nil
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}
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