wip

1 files changed, 41 insertions, 0 deletions

diff --git a/learn-you-some-erlang/band_supervisor.erl b/learn-you-some-erlang/band_supervisor.erl
new file mode 100644
index 0000000..dd17ba8
--- /dev/null
+++ b/learn-you-some-erlang/band_supervisor.erl
@@ -0,0 +1,41 @@
+-module(band_supervisor).
+-behaviour(supervisor).
+
+-export([start_link/1]).
+-export([init/1]).
+
+start_link(Type) ->
+    supervisor:start_link({local,?MODULE}, ?MODULE, Type).
+
+%% The band supervisor will allow its band members to make a few
+%% mistakes before shutting down all operations, based on what
+%% mood he's in. A lenient supervisor will tolerate more mistakes
+%% than an angry supervisor, who'll tolerate more than a
+%% complete jerk supervisor
+init(lenient) ->
+    init({one_for_one, 3, 60});
+init(angry) ->
+    init({rest_for_one, 2, 60});
+init(jerk) ->
+    init({one_for_all, 1, 60});
+init(jamband) ->
+    {ok, {{simple_one_for_one, 3, 60},
+         [{jam_musician,
+           {musicians, start_link, []},
+           temporary, 1000, worker, [musicians]}
+         ]}};
+init({RestartStrategy, MaxRestart, MaxTime}) ->
+    {ok, {{RestartStrategy, MaxRestart, MaxTime},
+         [{singer,
+           {musicians, start_link, [singer, good]},
+           permanent, 1000, worker, [musicians]},
+          {bass,
+           {musicians, start_link, [bass, good]},
+           temporary, 1000, worker, [musicians]},
+          {drum,
+           {musicians, start_link, [drum, bad]},
+           transient, 1000, worker, [musicians]},
+          {keytar,
+           {musicians, start_link, [keytar, good]},
+           transient, 1000, worker, [musicians]}
+         ]}}.