57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package dht
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import "sync"
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type peer struct {
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node Node
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//<lastPublished>,
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//<originallyPublished>
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// <originalPublisherID>
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}
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type peerStore struct {
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// map of blob hashes to (map of node IDs to bools)
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nodeIDs map[bitmap]map[bitmap]bool
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// map of node IDs to peers
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nodeInfo map[bitmap]peer
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lock sync.RWMutex
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}
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func newPeerStore() *peerStore {
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return &peerStore{
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nodeIDs: make(map[bitmap]map[bitmap]bool),
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nodeInfo: make(map[bitmap]peer),
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}
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}
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func (s *peerStore) Upsert(blobHash bitmap, node Node) {
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s.lock.Lock()
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defer s.lock.Unlock()
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if _, ok := s.nodeIDs[blobHash]; !ok {
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s.nodeIDs[blobHash] = make(map[bitmap]bool)
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}
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s.nodeIDs[blobHash][node.id] = true
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s.nodeInfo[node.id] = peer{node: node}
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}
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func (s *peerStore) Get(blobHash bitmap) []Node {
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s.lock.RLock()
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defer s.lock.RUnlock()
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var nodes []Node
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if ids, ok := s.nodeIDs[blobHash]; ok {
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for id := range ids {
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peer, ok := s.nodeInfo[id]
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if !ok {
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panic("node id in IDs list, but not in nodeInfo")
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}
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nodes = append(nodes, peer.node)
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}
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}
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return nodes
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}
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func (s *peerStore) CountKnownNodes() int {
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s.lock.RLock()
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defer s.lock.RUnlock()
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return len(s.nodeInfo)
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}
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