Configurable progress reporting

ebin/gmhive_client.app

@@ -1,6 +1,6 @@
 {application,gmhive_client,
              [{description,"Gajumaru Hive Client"},
-              {vsn,"0.5.1"},
+              {vsn,"0.6.0"},
               {registered,[]},
               {applications,[kernel,stdlib,sasl,gproc,inets,ssl,enoise,
                              gmconfig,gmhive_protocol,gmhive_worker]},

src/gmhc_app.erl

@@ -1,6 +1,6 @@
 %% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
 -module(gmhc_app).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -behaviour(application).
 
@@ -49,4 +49,13 @@ set_things_up() ->
     gmhc_config:load_config(),
     logger:set_module_level([gmhw_pow_cuckoo], notice),
     ?LOG_DEBUG("Config: ~p", [gmconfig:user_config()]),
+    case gmhc_config:get_config([<<"report">>]) of
+        <<"debug">> ->
+            ?LOG_NOTICE("Starting debug reporter", []),
+            gmhc_events:debug();
+        <<"progress">> ->
+            ?LOG_NOTICE("Starting progress reporter", []),
+            gmhc_events:progress();
+        _ -> ok
+    end,
     ok.

src/gmhc_config.erl

@@ -1,5 +1,5 @@
 -module(gmhc_config).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([ load_config/0
         , get_config/1

src/gmhc_config_schema.erl

@@ -1,5 +1,5 @@
 -module(gmhc_config_schema).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([ schema/0
         , to_json/0 ]).
@@ -39,6 +39,9 @@ schema() ->
          , pool => pool()
          , pool_admin => pool_admin()
          , workers => workers()
+         , report => str(#{ enum  => [<<"debug">>, <<"progress">>, <<"silent">>]
+                          , default => <<"silent">>
+                          , description => <<"Progress reporting">> })
          }).
 
 pool() ->

src/gmhc_connector.erl

@@ -1,5 +1,5 @@
 -module(gmhc_connector).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -behaviour(gen_server).
 

src/gmhc_connectors_sup.erl

@@ -1,5 +1,5 @@
 -module(gmhc_connectors_sup).
--vsn("0.4.8").
+-vsn("0.6.0").
 -behavior(supervisor).
 
 -export([ start_link/0

src/gmhc_counters.erl

@@ -1,5 +1,5 @@
 -module(gmhc_counters).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([ initialize/0 ]).
 

src/gmhc_eureka.erl

@@ -1,5 +1,5 @@
 -module(gmhc_eureka).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([get_pool_address/0]).
 

src/gmhc_events.erl

@@ -1,5 +1,5 @@
 -module(gmhc_events).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([subscribe/1,
          ensure_subscribed/1,
@@ -7,7 +7,17 @@
          ensure_unsubscribed/1,
          publish/2]).
 
--export([debug/0]).
+-export([debug/0,
+         progress/0,
+         stop/0]).
+
+-export([rpt_debug/2,
+         rpt_progress/2]).
+
+%% internal
+-export([init_reporter/2]).
+
+-include_lib("kernel/include/logger.hrl").
 
 -export_type([event/0]).
 
@@ -60,23 +70,100 @@ ensure_unsubscribed(Event) ->
 
 debug() ->
     ok = application:ensure_started(gproc),
-    spawn(fun() ->
+    spawn_reporter(fun() ->
-                  subscribe(pool_notification),
+                           sub(),
-                  subscribe({pool_notification, new_generation}),
+                           gmhive_worker:subscribe_returns(),
-                  subscribe(connected),
+                           loop(fun rpt_debug/2, false)
-                  subscribe(puzzle),
+                   end).
-                  subscribe(result),
-                  subscribe(error),
-                  subscribe(disconnected),
-                  gmhive_worker:subscribe_returns(),
-                  loop()
-          end).
 
-loop() ->
+progress() ->
+    ok = application:ensure_started(gproc),
+    spawn_reporter(fun() ->
+                           sub(),
+                           loop(fun rpt_progress/2, true)
+                   end).
+
+spawn_reporter(F) ->
+    Parent = self(),
+    proc_lib:start_link(?MODULE, init_reporter, [F, Parent]).
+
+init_reporter(F, Parent) ->
+    try_register_reporter(),
+    proc_lib:init_ack(Parent, self()),
+    F().
+
+stop() ->
+    case whereis(gmhc_reporter) of
+        undefined ->
+            not_running;
+        Pid ->
+            exit(Pid, kill)
+    end.
+
+sub() ->
+    subscribe(pool_notification),
+    subscribe({pool_notification, new_generation}),
+    subscribe(connected),
+    subscribe(puzzle),
+    subscribe(result),
+    subscribe(error),
+    subscribe(disconnected).
+
+loop(F, Ts) ->
     receive
         stop -> ok;
         {gproc_ps_event, E, Data} ->
-            io:fwrite("EVENT ~p: ~p~n", [E, Data]),
+            maybe_print(F(E, Data), Ts),
-            loop()
+            loop(F, Ts)
     end.
 
+try_register_reporter() ->
+    try register(gmhc_reporter, self())
+    catch
+        error:_ ->
+            ?LOG_ERROR("Reporter already running. Try gmhc_events:stop().", []),
+            error(already_running)
+    end.
+
+maybe_print([], _) ->
+    ok;
+maybe_print(String, Ts) when is_boolean(Ts) ->
+    TSstr = [[ts(), " "] || Ts],
+    io:put_chars([TSstr, String, "\n"]).
+
+ts() ->
+    calendar:system_time_to_rfc3339(erlang:system_time(millisecond),
+                                    [{unit, millisecond}, {offset, "Z"}]).
+
+rpt_debug(E, Data) ->
+    io_lib:fwrite("EVENT ~p: ~p", [E, Data]).
+
+rpt_progress(puzzle, #{info := {_Data, _Target, Nonce, _Config}}) ->
+    w("Trying nonce: ~p", [Nonce]);
+rpt_progress(result, #{info := Info}) ->
+    case Info of
+        {error, no_solution} ->
+            [];
+        {ok, Cycles} ->
+            w("Found! Reporting ~w cycles to leader.", [length(Cycles)]);
+        Other ->
+            w("Unexpected 'result': ~tp", [Other])
+    end;
+rpt_progress(pool_notification, #{info := #{msg := Msg}}) ->
+    case Msg of
+        #{solution_accepted := #{seq := Seq}} ->
+            w("The hive has produced a solution! Sequence: ~w", [Seq]);
+        #{new_generation := _} -> [];
+        #{candidate := _}      -> [];
+        Other ->
+            w("Unexpected 'pool_notification': ~tp", [Other])
+    end;
+rpt_progress(connected, _) ->
+    w("Connected!", []);
+rpt_progress(disconnected, _) ->
+    w("Disconnected!", []);
+rpt_progress(_, _) ->
+    [].
+
+w(Fmt, Args) ->
+    io_lib:fwrite(Fmt, Args).

src/gmhc_handler.erl

@@ -1,5 +1,5 @@
 -module(gmhc_handler).
--vsn("0.4.8").
+-vsn("0.6.0").
 -behavior(gen_server).
 
 -export([ start_link/0

src/gmhc_server.erl

@@ -1,5 +1,5 @@
 -module(gmhc_server).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -behaviour(gen_server).
 

src/gmhc_sup.erl

@@ -1,6 +1,6 @@
 %% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
 -module(gmhc_sup).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -behaviour(supervisor).
 

src/gmhc_workers.erl

@@ -8,7 +8,7 @@
 %%%-------------------------------------------------------------------
 
 -module(gmhc_workers).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([
           get_worker_configs/0

src/gmhive_client.erl

@@ -1,5 +1,5 @@
 -module(gmhive_client).
--vsn("0.4.8").
+-vsn("0.6.0").
 
 -export([ connect/1
         , disconnect/1

zomp.meta

@@ -2,9 +2,9 @@
 {type,app}.
 {modules,[]}.
 {prefix,"gmhc"}.
-{desc,"Gajumaru Hive Client"}.
 {author,"Ulf Wiger, QPQ AG"}.
-{package_id,{"uwiger","gmhive_client",{0,5,1}}}.
+{desc,"Gajumaru Hive Client"}.
+{package_id,{"uwiger","gmhive_client",{0,6,0}}}.
 {deps,[{"uwiger","gmhive_worker",{0,5,1}},
        {"uwiger","gmcuckoo",{1,2,4}},
        {"otpr","eblake2",{1,0,1}},