Use buffered channels in AllKeysChan to increase performance.

License: MIT
Signed-off-by: Kevin Atkinson <k@kevina.org>

filestore/filestore.go

@@ -7,6 +7,7 @@ import (
 	"github.com/ipfs/go-ipfs/blocks/blockstore"
 	posinfo "github.com/ipfs/go-ipfs/thirdparty/posinfo"
 
+	dsq "gx/ipfs/QmRWDav6mzWseLWeYfVd5fvUKiVe9xNH29YfMF438fG364/go-datastore/query"
 	logging "gx/ipfs/QmSpJByNKFX1sCsHBEp3R73FL4NF6FnQTEGyNAXHm2GS52/go-log"
 	cid "gx/ipfs/QmV5gPoRsjN1Gid3LMdNZTyfCtP2DsvqEbMAmz82RmmiGk/go-cid"
 )
@@ -30,7 +31,7 @@ func (f *Filestore) AllKeysChan(ctx context.Context) (<-chan *cid.Cid, error) {
 		return nil, err
 	}
 
-	out := make(chan *cid.Cid)
+	out := make(chan *cid.Cid, dsq.KeysOnlyBufSize)
 	go func() {
 		defer cancel()
 		defer close(out)

filestore/fsrefstore.go

@@ -48,7 +48,7 @@ func (f *FileManager) AllKeysChan(ctx context.Context) (<-chan *cid.Cid, error)
 		return nil, err
 	}
 
-	out := make(chan *cid.Cid)
+	out := make(chan *cid.Cid, dsq.KeysOnlyBufSize)
 	go func() {
 		defer close(out)
 		for {