// incCmd adds one to the value of c.key in the env and writes
// it to the db. If c.key isn't in the db, writes 1.
func incCmd(c *cmd, txn *client.Txn, t *testing.T) *roachpb.Error {
r, pErr := txn.Inc(c.getKey(), 1)
if pErr != nil {
return pErr
}
c.env[c.key] = r.ValueInt()
c.debug = fmt.Sprintf("[%d]", r.ValueInt())
return nil
}
// sumCmd sums the values of all keys != c.key read during the transaction and
// writes the result to the db.
func sumCmd(c *cmd, txn *client.Txn, t *testing.T) *roachpb.Error {
sum := int64(0)
for k, v := range c.env {
if k != c.key {
sum += v
}
}
r, pErr := txn.Inc(c.getKey(), sum)
c.debug = fmt.Sprintf("[%d ts=%d]", sum, r.Timestamp())
return pErr
}