Erlang Hot Code Loading

$erl Erlang R16B01 (erts-5.10.2) [source] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

Eshell V5.10.2 (abort with ^G)

%% Complie the Module %%

1> c(hotcodeloading). {ok,hotcodeloading}

%% spawn a built-in function used to create a process%%

%% To create a process, we use BIF spawn/3 which returns the new process PID%%

2> Loop = spawn(hotcodeloading, loop, []). <0.41.0>

%% ! is Send Message Operator %%

%% The Send Operator passes a message to a process %%

3> Loop ! chinnu. This is Original chinnu

%% Change the Code %%

4> Loop ! upgrade. upgrade

%% After Hot Code Loaded Function Result %%

5> Loop ! chinnu. This is Hot Code Loading chinnu 6>