
Storing multiple sessions in a single indexeddb record is prone to clobbering data due to races between requests to update multiple device sessions for the same number, since you have to read the current state of the device->session map and update it. Splitting the records up makes it so that those updates can be made in parallel. Selecting all the sessions for a given number can still be done efficiently thanks to indexeddb range queries.
47 lines
2.1 KiB
JavaScript
47 lines
2.1 KiB
JavaScript
/* vim: ts=4:sw=4:expandtab
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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(function () {
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'use strict';
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window.Whisper = window.Whisper || {};
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window.Whisper.Database = window.Whisper.Database || {};
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window.Whisper.Database.id = window.Whisper.Database.id || 'signal';
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Whisper.Database.migrations = [
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{
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version: "1.0",
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migrate: function(transaction, next) {
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console.log('migration 1.0');
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var messages = transaction.db.createObjectStore("messages");
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messages.createIndex("conversation", ["conversationId", "received_at"], { unique: false });
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messages.createIndex("receipt", "sent_at", { unique: false });
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var conversations = transaction.db.createObjectStore("conversations");
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conversations.createIndex("inbox", "active_at", { unique: false });
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conversations.createIndex("group", "members", { unique: false, multiEntry: true });
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conversations.createIndex("type", "type", { unique: false });
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var sessions = transaction.db.createObjectStore('sessions');
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var identityKeys = transaction.db.createObjectStore('identityKeys');
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var preKeys = transaction.db.createObjectStore("preKeys");
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var signedPreKeys = transaction.db.createObjectStore("signedPreKeys");
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next();
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}
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}
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];
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}());
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