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
|
-module(fabric_util).
-export([submit_jobs/3, recv/4, receive_loop/4, receive_loop/6]).
-include("fabric.hrl").
submit_jobs(Shards, EndPoint, ExtraArgs) ->
lists:map(fun(#shard{node=Node, name=ShardName} = Shard) ->
io:format("submitting ~p ~p~n", [Node, {fabric_rpc, EndPoint, [ShardName | ExtraArgs]}]),
Ref = rexi:cast(Node, {fabric_rpc, EndPoint, [ShardName | ExtraArgs]}),
Shard#shard{ref = Ref}
end, Shards).
recv(Workers, Keypos, Fun, Acc0) ->
receive_loop(Workers, Keypos, Fun, Acc0).
receive_loop(Workers, Keypos, Fun, Acc0) ->
case couch_config:get("fabric", "request_timeout", "10000") of
"infinity" ->
Timeout = infinity;
N ->
Timeout = list_to_integer(N)
end,
receive_loop(Workers, Keypos, Fun, Acc0, Timeout, infinity).
%% @doc set up the receive loop with an overall timeout
-spec receive_loop([any()], integer(), function(), any(), timeout(), timeout()) ->
{ok, any()}.
receive_loop(RefPartMap, Keypos, Fun, Acc0, GlobalTimeout, PerMsgTO) ->
TimeoutRef = erlang:make_ref(),
{ok, TRef} = timer:send_after(GlobalTimeout, {timeout, TimeoutRef}),
try
process_mailbox(RefPartMap, Keypos, Fun, Acc0, TimeoutRef, PerMsgTO)
after
timer:cancel(TRef)
end.
process_mailbox(RefList, Keypos, Fun, Acc0, TimeoutRef, PerMsgTO) ->
case process_message(RefList, Keypos, Fun, Acc0, TimeoutRef, PerMsgTO) of
{ok, Acc} ->
process_mailbox(RefList, Keypos, Fun, Acc, TimeoutRef, PerMsgTO);
{stop, Acc} ->
{ok, Acc};
Error ->
Error
end.
process_message(RefList, Keypos, Fun, Acc0, TimeoutRef, PerMsgTO) ->
receive
{timeout, TimeoutRef} ->
timeout;
{Ref, Msg} ->
io:format("process_message ~p ~p~n", [Ref, Msg]),
case lists:keyfind(Ref, Keypos, RefList) of
false ->
% this was some non-matching message which we will ignore
{ok, Acc0};
Worker ->
Fun(Msg, Worker, Acc0)
end;
{Ref, From, Msg} ->
io:format("process sync_reply {~p,~p} ~p~n", [Ref, From, Msg]),
case lists:keyfind(Ref, Keypos, RefList) of
false ->
{ok, Acc0};
Worker ->
Fun(Msg, {Worker, From}, Acc0)
end;
{rexi_DOWN, _RexiMonPid, ServerPid, Reason} = Msg ->
showroom_log:message(alert, "rexi_DOWN ~p ~p", [ServerPid, Reason]),
Fun(nil, Msg, Acc0)
after PerMsgTO ->
timeout
end.
|
