sharding/client: Add utils.go for blob serialization(prysmaticlabs#92)

sharding/client/utils.go

@@ -0,0 +1,39 @@
+package client
+
+import (
+	"fmt"
+)
+
+type collationbody []byte
+
+var (
+	collationsizelimit = int64(2 * *20)
+	chunkSize          = int64(32)
+	indicatorSize      = int64(1)
+	chunkDataSize      = chunkSize - indicatorSize
+)
+
+func (c *collationbody) validateBody() bool {
+	return len(c) < 2^20 && len(c) > 0
+}
+
+func createChunks(c collationbody) {
+	validCollation, err := c.validateBody
+	if err != nil {
+		fmt.Errorf("Error %v", err)
+	}
+	if !validCollation {
+		fmt.Errorf("Error %v", err)
+	}
+	index := int64(len(c)) / chunkDataSize
+
+	/*
+	   for i = 0; i < index; i++ {
+	   serialisedblob[i*chunksize] = 0
+	    for f = 0; f <chunkdatasize ; f++ {
+	   serialisedblob[(f+1) + i*chunksize] = collationbody[f + i*chunkdatasize]
+	   }
+	   serialisedblob[index*chunksize ] = len(collationbody) – index*chunkdatasize
+	   }*/
+
+}