Chapril/xmpp.chapril.org-ejabberd
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Get rid of p1_mnesia file

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This commit is contained in:
Evgeniy Khramtsov 2014-07-17 08:31:54 +04:00
parent b5c4fe6626
commit 568068c79f
2 changed files with 28 additions and 55 deletions
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34
src/mod_offline.erl
View File

@ -123,10 +123,7 @@ store_offline_msg(_Host, US, Msgs, Len, MaxOfflineMsgs,
mnesia) ->
F = fun () ->
Count = if MaxOfflineMsgs =/= infinity ->
Len +
p1_mnesia:count_records(offline_msg,
#offline_msg{us = US,
_ = '_'});
Len + count_mnesia_records(US);
true -> 0
end,
if Count > MaxOfflineMsgs -> discard_warn_sender(Msgs);
@ -986,8 +983,7 @@ count_offline_messages(User, Server) ->
count_offline_messages(LUser, LServer, mnesia) ->
US = {LUser, LServer},
F = fun () ->
p1_mnesia:count_records(offline_msg,
#offline_msg{us = US, _ = '_'})
count_mnesia_records(US)
end,
case catch mnesia:async_dirty(F) of
I when is_integer(I) -> I;
@ -1016,6 +1012,32 @@ count_offline_messages(_Acc, User, Server) ->
N = count_offline_messages(User, Server),
{stop, N}.
%% Return the number of records matching a given match expression.
%% This function is intended to be used inside a Mnesia transaction.
%% The count has been written to use the fewest possible memory by
%% getting the record by small increment and by using continuation.
-define(BATCHSIZE, 100).
count_mnesia_records(US) ->
MatchExpression = #offline_msg{us = US, _ = '_'},
case mnesia:select(offline_msg, [{MatchExpression, [], [[]]}],
?BATCHSIZE, read) of
{Result, Cont} ->
Count = length(Result),
count_records_cont(Cont, Count);
'$end_of_table' ->
0
end.
count_records_cont(Cont, Count) ->
case mnesia:select(Cont) of
{Result, Cont} ->
NewCount = Count + length(Result),
count_records_cont(Cont, NewCount);
'$end_of_table' ->
Count
end.
offline_msg_schema() ->
{record_info(fields, offline_msg), #offline_msg{}}.

49
src/p1_mnesia.erl
View File

@ -1,49 +0,0 @@
%%% ====================================================================
%%% ``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 via the world wide web 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.
%%%
%%%
%%% The Initial Developer of the Original Code is ProcessOne.
%%% Portions created by ProcessOne are Copyright 2006-2014, ProcessOne
%%% All Rights Reserved.''
%%%
%%% This software is copyright 2006-2014, ProcessOne.
-module(p1_mnesia).
-author('mickael.remond@process-one.net').
-export([count_records/2]).
%% Return the number of records matching a given match expression.
%% This function is intended to be used inside a Mnesia transaction.
%% The count has been written to use the fewest possible memory by
%% getting the record by small increment and by using continuation.
-define(BATCHSIZE, 100).
count_records(Tab, MatchExpression) ->
case mnesia:select(Tab, [{MatchExpression, [], [[]]}],
?BATCHSIZE, read)
of
{Result, Cont} ->
Count = length(Result),
count_records_cont(Cont, Count);
'$end_of_table' -> 0
end.
count_records_cont(Cont, Count) ->
case mnesia:select(Cont) of
{Result, Cont} ->
NewCount = Count + length(Result),
count_records_cont(Cont, NewCount);
'$end_of_table' -> Count
end.