forked from TrueCloudLab/frostfs-node
[#234] core/netmap: Extend Source interface
Add GetNetMapByEpoch method. Add Epoch method. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
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2 changed files with 18 additions and 1 deletions
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@ -17,6 +17,21 @@ type Source interface {
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// Implementations must not retain the network map pointer and modify
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// the network map through it.
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GetNetMap(diff uint64) (*netmap.Netmap, error)
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// GetNetMapByEpoch reads network map by the epoch number from the storage.
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// It returns the pointer to requested network map and any error encountered.
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//
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// Must return exactly one non-nil value.
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//
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// Implementations must not retain the network map pointer and modify
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// the network map through it.
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GetNetMapByEpoch(epoch uint64) (*netmap.Netmap, error)
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// Epoch reads current epoch from the storage.
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// It returns number of the current epoch and any error encountered.
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//
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// Must return exactly one non-default value.
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Epoch() (uint64, error)
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}
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// GetLatestNetworkMap requests and returns latest network map from storage.
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