[Erlang] Día 3 (1/2)

1 files changed, 20 insertions, 0 deletions

diff --git a/erlang/monitor_doctor.erl b/erlang/monitor_doctor.erl
new file mode 100644
index 0000000..537f59a
--- /dev/null
+++ b/erlang/monitor_doctor.erl
@@ -0,0 +1,20 @@
+-module(monitor_doctor).
+-export([loop/0]).
+
+loop() ->
+	process_flag(trap_exit, true),
+	receive
+		die -> exit(mon);
+		{monitorize, Doctor} ->
+			io:format("Monitor: monitoring ~p.~n", [Doctor]),
+			link(Doctor);
+		new_doc ->
+			io:format("Monitor: starting new doctor.~n"),
+			register(doc, spawn_link(doctor, loop, [])),
+			doc ! {monitorize, self()},
+			doc ! new_rev;
+		{'EXIT', From, _} ->
+			io:format("Monitor: doctor ~p died, restarting.~n", [From]),
+			self() ! new_doc
+	end,
+	loop().