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| 1 | +'use strict'; |
| 2 | +require('../common'); |
| 3 | +const tmpdir = require('../common/tmpdir'); |
| 4 | +const { join } = require('node:path'); |
| 5 | +const { DatabaseSync } = require('node:sqlite'); |
| 6 | +const { test } = require('node:test'); |
| 7 | +const { once } = require('node:events'); |
| 8 | +const { Worker } = require('node:worker_threads'); |
| 9 | +let cnt = 0; |
| 10 | + |
| 11 | +tmpdir.refresh(); |
| 12 | + |
| 13 | +function nextDb() { |
| 14 | + return join(tmpdir.path, `database-${cnt++}.db`); |
| 15 | +} |
| 16 | + |
| 17 | +test('waits to acquire lock', async (t) => { |
| 18 | + const DB_PATH = nextDb(); |
| 19 | + const conn = new DatabaseSync(DB_PATH); |
| 20 | + t.after(() => { |
| 21 | + try { |
| 22 | + conn.close(); |
| 23 | + } catch { |
| 24 | + // Ignore. |
| 25 | + } |
| 26 | + }); |
| 27 | + |
| 28 | + conn.exec('CREATE TABLE IF NOT EXISTS data (value TEXT)'); |
| 29 | + conn.exec('BEGIN EXCLUSIVE;'); |
| 30 | + const worker = new Worker(` |
| 31 | + 'use strict'; |
| 32 | + const { DatabaseSync } = require('node:sqlite'); |
| 33 | + const { workerData } = require('node:worker_threads'); |
| 34 | + const conn = new DatabaseSync(workerData.database, { timeout: 30000 }); |
| 35 | + conn.exec('SELECT * FROM data'); |
| 36 | + conn.close(); |
| 37 | + `, { |
| 38 | + eval: true, |
| 39 | + workerData: { |
| 40 | + database: DB_PATH, |
| 41 | + } |
| 42 | + }); |
| 43 | + await once(worker, 'online'); |
| 44 | + conn.exec('COMMIT;'); |
| 45 | + await once(worker, 'exit'); |
| 46 | +}); |
| 47 | + |
| 48 | +test('throws if the lock cannot be acquired before timeout', (t) => { |
| 49 | + const DB_PATH = nextDb(); |
| 50 | + const conn1 = new DatabaseSync(DB_PATH); |
| 51 | + t.after(() => { |
| 52 | + try { |
| 53 | + conn1.close(); |
| 54 | + } catch { |
| 55 | + // Ignore. |
| 56 | + } |
| 57 | + }); |
| 58 | + const conn2 = new DatabaseSync(DB_PATH, { timeout: 1 }); |
| 59 | + t.after(() => { |
| 60 | + try { |
| 61 | + conn2.close(); |
| 62 | + } catch { |
| 63 | + // Ignore. |
| 64 | + } |
| 65 | + }); |
| 66 | + |
| 67 | + conn1.exec('CREATE TABLE IF NOT EXISTS data (value TEXT)'); |
| 68 | + conn1.exec('PRAGMA locking_mode = EXCLUSIVE; BEGIN EXCLUSIVE;'); |
| 69 | + t.assert.throws(() => { |
| 70 | + conn2.exec('SELECT * FROM data'); |
| 71 | + }, /database is locked/); |
| 72 | +}); |
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