forked from TrueCloudLab/frostfs-node
66 lines
1,007 B
Go
66 lines
1,007 B
Go
package placement
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import (
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"sync"
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"github.com/nspcc-dev/neofs-node/lib/netmap"
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)
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type (
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// NetMap is a type alias of
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// NetMap from netmap package.
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NetMap = netmap.NetMap
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netMapStore struct {
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*sync.RWMutex
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items map[uint64]*NetMap
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curEpoch uint64
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}
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)
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func newNetMapStore() *netMapStore {
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return &netMapStore{
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RWMutex: new(sync.RWMutex),
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items: make(map[uint64]*NetMap),
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}
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}
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func (s *netMapStore) put(epoch uint64, nm *NetMap) {
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s.Lock()
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s.items[epoch] = nm
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s.curEpoch = epoch
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s.Unlock()
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}
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func (s *netMapStore) get(epoch uint64) *NetMap {
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s.RLock()
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nm := s.items[epoch]
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s.RUnlock()
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return nm
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}
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// trim cleans all network states elder than epoch.
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func (s *netMapStore) trim(epoch uint64) {
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s.Lock()
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m := make(map[uint64]struct{}, len(s.items))
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for e := range s.items {
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if e < epoch {
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m[e] = struct{}{}
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}
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}
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for e := range m {
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delete(s.items, e)
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}
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s.Unlock()
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}
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func (s *netMapStore) epoch() uint64 {
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s.RLock()
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defer s.RUnlock()
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return s.curEpoch
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}
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