To Delay Instantiation of a Smart Contract to Save Calculation Resources in IoT

Algorithm 1. Smart contract invocation by a variable.

1: Define smart contract SCA

2: …

3: End Define

4:

5: Define smart contract SCB

6: …

7: End Define

8:

9: Define smart contract SCC

10: //scope begin {

11: // create an instance (new process) of SCA

12: Variable sca = new Variable(”SCA”);

13: invoking method of sca

14: …

15: // create an instance (new process) of SCB

16: Variable scb = new Variable(”SCB”);

17: invoking method of scb

18: //scope end } - sca and scb are ready to terminate (condition a), and those two smart contract instances terminate after their states have been confirmed in blockchain (condition b)

19: End Define

Algorithm 1. Smart contract invocation by a variable.