ipfs-cluster/monitor/metrics/util.go
Hector Sanjuan 6447ea51d2 Remove *Serial types. Use pointers for all types.
This takes advantange of the latest features in go-cid, peer.ID and
go-multiaddr and makes the Go types serializable by default.

This means we no longer need to copy between Pin <-> PinSerial, or ID <->
IDSerial etc. We can now efficiently binary-encode these types using short
field keys and without parsing/stringifying (in many cases it just a cast).

We still get the same json output as before (with minor modifications for
Cids).

This should greatly improve Cluster performance and memory usage when dealing
with large collections of items.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2019-02-27 17:04:35 +00:00

29 lines
566 B
Go

package metrics
import (
"github.com/ipfs/ipfs-cluster/api"
peer "github.com/libp2p/go-libp2p-peer"
)
// PeersetFilter removes all metrics not belonging to the given
// peerset
func PeersetFilter(metrics []*api.Metric, peerset []peer.ID) []*api.Metric {
peerMap := make(map[peer.ID]struct{})
for _, pid := range peerset {
peerMap[pid] = struct{}{}
}
filtered := make([]*api.Metric, 0, len(metrics))
for _, metric := range metrics {
_, ok := peerMap[metric.Peer]
if !ok {
continue
}
filtered = append(filtered, metric)
}
return filtered
}