preallocate map in sameAddrs

vyzo · vyzo · commit 6b859d6b8d2f · 2019-04-19T19:39:00.000+03:00
diff --git a/p2p/host/basic/basic_host.go b/p2p/host/basic/basic_host.go
@@ -323,7 +323,7 @@ func sameAddrs(a, b []ma.Multiaddr) bool {
 		return false
 	}
 
-	bmap := make(map[string]struct{})
+	bmap := make(map[string]struct{}, len(b))
 	for _, addr := range b {
 		bmap[string(addr.Bytes())] = struct{}{}
 	}

Original file line number	Diff line number	Diff line change
`@@ -323,7 +323,7 @@ func sameAddrs(a, b []ma.Multiaddr) bool {`
`323`	`323`	`return false`
`324`	`324`	`}`
`325`	`325`
`326`		`- bmap := make(map[string]struct{})`
	`326`	`+ bmap := make(map[string]struct{}, len(b))`
`327`	`327`	`for _, addr := range b {`
`328`	`328`	`bmap[string(addr.Bytes())] = struct{}{}`
`329`	`329`	`}`