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117 lignes
3.9 KiB
117 lignes
3.9 KiB
-module(agAgencyUtils).
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-include("agHttpCli.hrl").
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-compile(inline).
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-compile({inline_size, 128}).
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-export([
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getQueue/1
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, addQueue/2
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, delQueue/1
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, clearQueue/0
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, cancelTimer/1
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, dealClose/3
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, reconnectTimer/2
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, agencyReply/2
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, agencyReply/4
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, initReconnectState/3
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, resetReconnectState/1
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, updateReconnectState/1
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]).
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-spec getQueue(pos_integer()) -> undefined | miRequest().
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getQueue(RequestsIn) ->
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erlang:get(RequestsIn).
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-spec addQueue(pos_integer(), miRequest()) -> undefined.
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addQueue(RequestsIn, MiRequest) ->
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erlang:put(RequestsIn, MiRequest).
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-spec delQueue(pos_integer()) -> miRequest().
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delQueue(RequestsIn) ->
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erlang:erase(RequestsIn).
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-spec clearQueue() -> term().
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clearQueue() ->
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erlang:erase().
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-spec dealClose(srvState(), cliState(), term()) -> {ok, srvState(), cliState()}.
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dealClose(SrvState, #cliState{curInfo = CurInfo} = ClientState, Reply) ->
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agencyReply(CurInfo, Reply),
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agencyReplyAll(Reply),
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reconnectTimer(SrvState, ClientState#cliState{requestsIn = 1, requestsOut = 0, backlogNum = 0, status = leisure, curInfo = undefined, recvState = undefined}).
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-spec reconnectTimer(srvState(), cliState()) -> {ok, srvState(), cliState()}.
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reconnectTimer(#srvState{reconnectState = undefined} = SrvState, CliState) ->
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{ok, {SrvState#srvState{socket = undefined}, CliState}};
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reconnectTimer(#srvState{reconnectState = ReconnectState} = SrvState, CliState) ->
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#reconnectState{current = Current} = MewReconnectState = agAgencyUtils:updateReconnectState(ReconnectState),
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TimerRef = erlang:send_after(Current, self(), ?miDoNetConnect),
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{ok, SrvState#srvState{reconnectState = MewReconnectState, socket = undefined, timerRef = TimerRef}, CliState}.
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-spec agencyReply(term(), term()) -> ok.
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agencyReply({undefined, _RequestId, TimerRef}, _Reply) ->
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agAgencyUtils:cancelTimer(TimerRef);
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agencyReply({PidForm, RequestId, TimerRef}, Reply) ->
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agAgencyUtils:cancelTimer(TimerRef),
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catch PidForm ! #miRequestRet{requestId = RequestId, reply = Reply},
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ok;
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agencyReply(undefined, _RequestRet) ->
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ok.
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-spec agencyReply(undefined | pid(), requestId(), undefined | reference(), term()) -> ok.
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agencyReply(undefined, _RequestId, TimerRef, _Reply) ->
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agAgencyUtils:cancelTimer(TimerRef),
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ok;
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agencyReply(FormPid, RequestId, TimerRef, Reply) ->
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agAgencyUtils:cancelTimer(TimerRef),
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catch FormPid ! #miRequestRet{requestId = RequestId, reply = Reply},
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ok.
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-spec agencyReplyAll(term()) -> ok.
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agencyReplyAll(Reply) ->
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AllList = agAgencyUtils:clearQueue(),
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[agencyReply(FormPid, RequestId, undefined, Reply) || #miRequest{requestId = RequestId, fromPid = FormPid} <- AllList],
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ok.
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-spec cancelTimer(undefined | reference()) -> ok.
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cancelTimer(undefined) -> ok;
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cancelTimer(TimerRef) ->
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case erlang:cancel_timer(TimerRef) of
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false ->
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%% 找不到计时器，我们还没有看到超时消息
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receive
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{timeout, TimerRef, _Msg} ->
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%% 丢弃该超时消息
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ok
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after 0 ->
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ok
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end;
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_ ->
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%% Timer 已经运行了
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ok
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end.
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-spec initReconnectState(boolean(), pos_integer(), pos_integer()) -> reconnectState() | undefined.
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initReconnectState(IsReconnect, Min, Max) ->
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case IsReconnect of
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true ->
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#reconnectState{min = Min, max = Max, current = Min};
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false ->
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undefined
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end.
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-spec resetReconnectState(undefined | reconnectState()) -> reconnectState() | undefined.
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resetReconnectState(#reconnectState{min = Min} = ReconnectState) ->
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ReconnectState#reconnectState{current = Min}.
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-spec updateReconnectState(reconnectState()) -> reconnectState().
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updateReconnectState(#reconnectState{current = Current, max = Max} = ReconnectState) ->
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NewCurrent = Current + Current,
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ReconnectState#reconnectState{current = minCur(NewCurrent, Max)}.
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minCur(A, B) when B >= A ->
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A;
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minCur(_, B) ->
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B.
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