ipld-eth-server/vendor/github.com/libp2p/go-libp2p-peerstore/pstoremem/metadata.go
Elizabeth Engelman 36533f7c3f Update vendor directory and make necessary code changes
Fixes for new geth version
2019-09-25 16:32:27 -05:00

46 lines
899 B
Go

package pstoremem
import (
"sync"
peer "github.com/libp2p/go-libp2p-peer"
pstore "github.com/libp2p/go-libp2p-peerstore"
)
type metakey struct {
id peer.ID
key string
}
type memoryPeerMetadata struct {
// store other data, like versions
//ds ds.ThreadSafeDatastore
ds map[metakey]interface{}
dslock sync.RWMutex
}
var _ pstore.PeerMetadata = (*memoryPeerMetadata)(nil)
func NewPeerMetadata() pstore.PeerMetadata {
return &memoryPeerMetadata{
ds: make(map[metakey]interface{}),
}
}
func (ps *memoryPeerMetadata) Put(p peer.ID, key string, val interface{}) error {
ps.dslock.Lock()
defer ps.dslock.Unlock()
ps.ds[metakey{p, key}] = val
return nil
}
func (ps *memoryPeerMetadata) Get(p peer.ID, key string) (interface{}, error) {
ps.dslock.RLock()
defer ps.dslock.RUnlock()
i, ok := ps.ds[metakey{p, key}]
if !ok {
return nil, pstore.ErrNotFound
}
return i, nil
}