1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
%% -*- erlang-indent-level: 2 -*-
%%-----------------------------------------------------------------------
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2006-2011. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%%-------------------------------------------------------------------
%%% File : dialyzer_coordinator.erl
%%% Authors : Stavros Aronis <[email protected]>
%%%-------------------------------------------------------------------
-module(dialyzer_coordinator).
%%% Export for dialyzer main process
-export([parallel_job/3]).
%%% Exports for all possible workers
-export([wait_activation/0, job_done/3]).
%%% Exports for the typesig and dataflow analysis workers
-export([sccs_to_pids/1, request_activation/1]).
%%% Exports for the compilation workers
-export([get_next_label/2]).
-export_type([coordinator/0, mode/0, init_data/0, result/0]).
%%--------------------------------------------------------------------
-define(MAP, dialyzer_coordinator_map).
-type coordinator() :: {pid(), pid()}. %%opaque
-type scc() :: [mfa_or_funlbl()].
-type mode() :: 'typesig' | 'dataflow' | 'compile' | 'warnings'.
-type compile_jobs() :: [file:filename()].
-type typesig_jobs() :: [scc()].
-type dataflow_jobs() :: [module()].
-type warnings_jobs() :: [module()].
-type compile_init_data() :: dialyzer_analysis_callgraph:compile_init_data().
-type typesig_init_data() :: dialyzer_succ_typings:typesig_init_data().
-type dataflow_init_data() :: dialyzer_succ_typings:dataflow_init_data().
-type warnings_init_data() :: dialyzer_succ_typings:warnings_init_data().
-type compile_result() :: dialyzer_analysis_callgraph:compile_result().
-type typesig_result() :: [mfa_or_funlbl()].
-type dataflow_result() :: [mfa_or_funlbl()].
-type warnings_result() :: [dial_warning()].
-type init_data() :: compile_init_data() | typesig_init_data() |
dataflow_init_data() | warnings_init_data().
-type result() :: compile_result() | typesig_result() |
dataflow_result() | warnings_result().
-type job() :: scc() | module() | file:filename().
-type job_result() :: dialyzer_analysis_callgraph:one_file_result() |
typesig_result() | dataflow_result() | warnings_result().
-record(state, {mode :: mode(),
active = 0 :: integer(),
result :: result(),
next_label = 0 :: integer(),
init_data :: init_data(),
regulator :: pid()
}).
-include("dialyzer.hrl").
%%--------------------------------------------------------------------
-spec parallel_job('compile', compile_jobs(), compile_init_data()) ->
{compile_result(), integer()};
('typesig', typesig_jobs(), typesig_init_data()) ->
typesig_result();
('dataflow', dataflow_jobs(), dataflow_init_data()) ->
dataflow_result();
('warnings', warnings_jobs(), warnings_init_data()) ->
warnings_result().
parallel_job(Mode, Jobs, InitData) ->
State = spawn_jobs(Mode, Jobs, InitData),
collect_result(State).
spawn_jobs(Mode, Jobs, InitData) ->
Collector = self(),
Regulator = spawn_regulator(),
Coordinator = {Collector, Regulator},
TypesigOrDataflow = (Mode =:= 'typesig') orelse (Mode =:= 'dataflow'),
case TypesigOrDataflow of
true ->
?MAP = ets:new(?MAP, [named_table, {read_concurrency, true}]);
false -> ok
end,
Fold =
fun(Job, Count) ->
Pid = dialyzer_worker:launch(Mode, Job, InitData, Coordinator),
case TypesigOrDataflow of
true -> true = ets:insert(?MAP, {Job, Pid});
false -> request_activation(Regulator, Pid)
end,
Count + 1
end,
JobCount = lists:foldl(Fold, 0, Jobs),
Unit =
case Mode of
'typesig' -> "SCCs";
_ -> "modules"
end,
dialyzer_timing:send_size_info(JobCount, Unit),
InitResult =
case Mode of
'compile' -> dialyzer_analysis_callgraph:compile_init_result();
_ -> []
end,
#state{mode = Mode, active = JobCount, result = InitResult, next_label = 0,
init_data = InitData, regulator = Regulator}.
collect_result(#state{mode = Mode, active = Active, result = Result,
next_label = NextLabel, init_data = InitData,
regulator = Regulator} = State) ->
receive
{next_label_request, Estimation, Pid} ->
Pid ! {next_label_reply, NextLabel},
collect_result(State#state{next_label = NextLabel + Estimation});
{done, Job, Data} ->
NewResult = update_result(Mode, InitData, Job, Data, Result),
case Active of
1 ->
kill_regulator(Regulator),
case Mode of
'compile' ->
{NewResult, NextLabel};
X when X =:= 'typesig'; X =:= 'dataflow' ->
ets:delete(?MAP),
NewResult;
'warnings' ->
NewResult
end;
N ->
collect_result(State#state{result = NewResult, active = N - 1})
end
end.
update_result(Mode, InitData, Job, Data, Result) ->
case Mode of
'compile' ->
dialyzer_analysis_callgraph:add_to_result(Job, Data, Result,
InitData);
X when X =:= 'typesig'; X =:= 'dataflow' ->
dialyzer_succ_typings:lookup_names(Data, InitData) ++ Result;
'warnings' ->
Data ++ Result
end.
-spec sccs_to_pids([scc() | module()]) ->
{[dialyzer_worker:worker()], [scc() | module()]}.
sccs_to_pids(SCCs) ->
lists:foldl(fun pid_partition/2, {[], []}, SCCs).
pid_partition(SCC, {Pids, Unknown}) ->
try ets:lookup_element(?MAP, SCC, 2) of
Result -> {[Result|Pids], Unknown}
catch
_:_ -> {Pids, [SCC|Unknown]}
end.
-spec job_done(job(), job_result(), coordinator()) -> ok.
job_done(Job, Result, {Collector, Regulator}) ->
Regulator ! done,
Collector ! {done, Job, Result},
ok.
-spec get_next_label(integer(), coordinator()) -> integer().
get_next_label(EstimatedSize, {Collector, _Regulator}) ->
Collector ! {next_label_request, EstimatedSize, self()},
receive
{next_label_reply, NextLabel} -> NextLabel
end.
-spec wait_activation() -> ok.
wait_activation() ->
receive activate -> ok end.
activate_pid(Pid) ->
Pid ! activate.
-spec request_activation(coordinator()) -> ok.
request_activation({_Collector, Regulator}) ->
Regulator ! {req, self()},
wait_activation().
request_activation(Regulator, Pid) ->
Regulator ! {req, Pid}.
spawn_regulator() ->
InitTickets = dialyzer_utils:parallelism(),
spawn_link(fun() -> regulator_loop(InitTickets, queue:new()) end).
regulator_loop(Tickets, Queue) ->
receive
{req, Pid} ->
case Tickets of
0 ->
regulator_loop(0, queue:in(Pid, Queue));
N ->
activate_pid(Pid),
regulator_loop(N-1, Queue)
end;
done ->
{Waiting, NewQueue} = queue:out(Queue),
NewTickets =
case Waiting of
empty -> Tickets + 1;
{value, Pid} ->
activate_pid(Pid),
Tickets
end,
regulator_loop(NewTickets, NewQueue);
stop -> ok
end.
kill_regulator(Regulator) ->
Regulator ! stop.
|
