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
|
%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(rabbit_ha_test_producer).
-export([await_response/1, start/6, create/5, create/6]).
-include_lib("amqp_client/include/amqp_client.hrl").
await_response(ProducerPid) ->
error_logger:info_msg("waiting for producer pid ~p~n", [ProducerPid]),
case receive {ProducerPid, Response} -> Response end of
ok -> ok;
{error, _} = Else -> exit(Else);
Else -> exit({weird_response, Else})
end.
create(Channel, Queue, TestPid, Confirm, MsgsToSend) ->
create(Channel, Queue, TestPid, Confirm, MsgsToSend, acks).
create(Channel, Queue, TestPid, Confirm, MsgsToSend, Mode) ->
AckNackMsgs = case Mode of
acks -> {ok, {error, received_nacks}};
nacks -> {{error, received_acks}, ok}
end,
ProducerPid = spawn_link(?MODULE, start, [Channel, Queue, TestPid,
Confirm, MsgsToSend, AckNackMsgs]),
receive
{ProducerPid, started} -> ProducerPid
end.
start(Channel, Queue, TestPid, Confirm, MsgsToSend, AckNackMsgs) ->
ConfirmState =
case Confirm of
true -> amqp_channel:register_confirm_handler(Channel, self()),
#'confirm.select_ok'{} =
amqp_channel:call(Channel, #'confirm.select'{}),
gb_trees:empty();
false -> none
end,
TestPid ! {self(), started},
error_logger:info_msg("publishing ~w msgs on ~p~n", [MsgsToSend, Channel]),
producer(Channel, Queue, TestPid, ConfirmState, MsgsToSend, AckNackMsgs).
%%
%% Private API
%%
producer(_Channel, _Queue, TestPid, none, 0, _AckNackMsgs) ->
TestPid ! {self(), ok};
producer(Channel, _Queue, TestPid, ConfirmState, 0, {AckMsg, NackMsg}) ->
error_logger:info_msg("awaiting confirms on channel ~p~n", [Channel]),
Msg = case drain_confirms(none, ConfirmState) of
%% No acks or nacks
acks -> AckMsg;
nacks -> NackMsg;
mix -> {error, received_both_acks_and_nacks};
{Nacks, CS} -> {error, {missing_confirms, Nacks,
lists:sort(gb_trees:keys(CS))}}
end,
TestPid ! {self(), Msg};
producer(Channel, Queue, TestPid, ConfirmState, MsgsToSend, AckNackMsgs) ->
Method = #'basic.publish'{exchange = <<"">>,
routing_key = Queue,
mandatory = false,
immediate = false},
ConfirmState1 = maybe_record_confirm(ConfirmState, Channel, MsgsToSend),
amqp_channel:call(Channel, Method,
#amqp_msg{props = #'P_basic'{delivery_mode = 2},
payload = list_to_binary(
integer_to_list(MsgsToSend))}),
producer(Channel, Queue, TestPid, ConfirmState1, MsgsToSend - 1, AckNackMsgs).
maybe_record_confirm(none, _, _) ->
none;
maybe_record_confirm(ConfirmState, Channel, MsgsToSend) ->
SeqNo = amqp_channel:next_publish_seqno(Channel),
gb_trees:insert(SeqNo, MsgsToSend, ConfirmState).
drain_confirms(Collected, ConfirmState) ->
case gb_trees:is_empty(ConfirmState) of
true -> Collected;
false -> receive
#'basic.ack'{delivery_tag = DeliveryTag,
multiple = IsMulti} ->
Collected1 = case Collected of
none -> acks;
acks -> acks;
nacks -> mix;
mix -> mix
end,
drain_confirms(Collected1,
delete_confirms(DeliveryTag, IsMulti,
ConfirmState));
#'basic.nack'{delivery_tag = DeliveryTag,
multiple = IsMulti} ->
Collected1 = case Collected of
none -> nacks;
nacks -> nacks;
acks -> mix;
mix -> mix
end,
drain_confirms(Collected1,
delete_confirms(DeliveryTag, IsMulti,
ConfirmState))
after
60000 -> {Collected, ConfirmState}
end
end.
delete_confirms(DeliveryTag, false, ConfirmState) ->
gb_trees:delete(DeliveryTag, ConfirmState);
delete_confirms(DeliveryTag, true, ConfirmState) ->
multi_confirm(DeliveryTag, ConfirmState).
multi_confirm(DeliveryTag, ConfirmState) ->
case gb_trees:is_empty(ConfirmState) of
true -> ConfirmState;
false -> {Key, _, ConfirmState1} = gb_trees:take_smallest(ConfirmState),
case Key =< DeliveryTag of
true -> multi_confirm(DeliveryTag, ConfirmState1);
false -> ConfirmState
end
end.
|
