refac(bitswap) extract const

640fa135 · Brian Tiger Chow · 55e53181 · 640fa135
Commit 640fa135 authored Sep 18, 2014 by Brian Tiger Chow
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bitswap.go bitswap.go +4 -1

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--- a/bitswap.go
+++ b/bitswap.go
@@ -63,9 +63,12 @@ type bitswap struct {
 // GetBlock attempts to retrieve a particular block from peers within the
 // deadline enforced by the context
+//
+// TODO ensure only one active request per key
 func (bs *bitswap) Block(ctx context.Context, k u.Key) (*blocks.Block, error) {
-	provs_ch := bs.routing.FindProvidersAsync(ctx, k, 20)
+	const maxProviders = 20
+	provs_ch := bs.routing.FindProvidersAsync(ctx, k, maxProviders)
 	blockChannel := make(chan blocks.Block)