Atomicity problem on IC

Explanation

The transaction must either fully happen or not happen at all. It must not complete partially.

For more details: source code

Deploy a local canister

$ make local

Perform update calls

$ for i in {0..99};
  do dfx canister call block_on update&
done

Verify

$ dfx canister call block_on query

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
src		src
.gitignore		.gitignore
Cargo.lock		Cargo.lock
Cargo.toml		Cargo.toml
LICENSE		LICENSE
Makefile		Makefile
README.MD		README.MD
block_on.did		block_on.did
dfx.json		dfx.json