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Co-authored-by: scott@signal.org
Co-authored-by: ken@signal.org
This commit is contained in:
Ken Powers 2019-05-16 15:32:11 -07:00 • committed by Scott Nonnenberg
parent 8c8856785b
commit 29de50c12a
100 changed files with 7572 additions and 693 deletions
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8
app/sql_channel.js
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@ -1,4 +1,5 @@
const electron = require('electron');
const Queue = require('p-queue');
const sql = require('./sql');
const { remove: removeUserConfig } = require('./user_config');
const { remove: removeEphemeralConfig } = require('./ephemeral_config');
@ -14,6 +15,8 @@ let initialized = false;
const SQL_CHANNEL_KEY = 'sql-channel';
const ERASE_SQL_KEY = 'erase-sql-key';
const queue = new Queue({ concurrency: 1 });
function initialize() {
if (initialized) {
throw new Error('sqlChannels: already initialized!');
@ -29,7 +32,10 @@ function initialize() {
);
}
const result = await fn(...args);
// Note: we queue here to keep multi-query operations atomic. Without it, any
// multistage data operation (even within a BEGIN/COMMIT) can become interleaved,
// since all requests share one database connection.
const result = await queue.add(() => fn(...args));
event.sender.send(`${SQL_CHANNEL_KEY}-done`, jobId, null, result);
} catch (error) {
const errorForDisplay = error && error.stack ? error.stack : error;