Reduce raw block allocs (#258)

* Reduce raw blocks allocations When decoding raw blocks they are passed straight through anyway, so there is no need for a destination buffer.
klauspost · May 21, 2020 · ece7104 · ece7104
1 parent b81237a
commit ece7104
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/zstd/blockdec.go b/zstd/blockdec.go
@@ -156,8 +156,12 @@ func (b *blockDec) reset(br byteBuffer, windowSize uint64) error {
 			}
 			return ErrCompressedSizeTooBig
 		}
-	default:
+	case blockTypeRaw:
 		b.RLESize = 0
+		// We do not need a destination for raw blocks.
+		maxSize = -1
+	default:
+		panic("Invalid block type")
 	}
 
 	// Read block data.