adjust sync package

This commit is contained in:
Nikita Sivukhin
2025-09-25 10:52:05 +04:00
parent afbfa98a8d
commit d08bcb6a17
6 changed files with 580 additions and 167 deletions

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@@ -1,23 +1,155 @@
import { SyncOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult } from "@tursodatabase/sync-common";
import { connect as promiseConnect, Database } from "./promise.js";
import { SyncEngine, initThreadPool, MainWorker } from "./index-bundle.js";
import { registerFileAtWorker, unregisterFileAtWorker } from "@tursodatabase/database-browser-common"
import { DatabasePromise } from "@tursodatabase/database-common"
import { ProtocolIo, run, DatabaseOpts as SyncDatabaseOpts, RunOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult, DatabaseStats, SyncEngineGuards } from "@tursodatabase/sync-common";
import { SyncEngine, SyncEngineProtocolVersion, initThreadPool, MainWorker } from "./index-bundle.js";
let BrowserIO: ProtocolIo = {
async read(path: string): Promise<Buffer | Uint8Array | null> {
const result = localStorage.getItem(path);
if (result == null) {
return null;
}
return new TextEncoder().encode(result);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
const array = new Uint8Array(data);
const value = new TextDecoder('utf-8').decode(array);
localStorage.setItem(path, value);
}
};
function memoryIO(): ProtocolIo {
let values = new Map();
return {
async read(path: string): Promise<Buffer | Uint8Array | null> {
return values.get(path);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
values.set(path, data);
}
}
};
async function init(): Promise<Worker> {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
}
class Database extends DatabasePromise {
#runOpts: RunOpts;
#engine: any;
#io: ProtocolIo;
#guards: SyncEngineGuards;
#worker: Worker | null;
constructor(opts: SyncDatabaseOpts) {
const engine = new SyncEngine({
path: opts.path,
clientName: opts.clientName,
useTransform: opts.transform != null,
protocolVersion: SyncEngineProtocolVersion.V1,
longPollTimeoutMs: opts.longPollTimeoutMs,
tracing: opts.tracing,
});
super(engine.db() as unknown as any);
let headers = typeof opts.authToken === "function" ? () => ({
...(opts.authToken != null && { "Authorization": `Bearer ${(opts.authToken as any)()}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
}) : {
...(opts.authToken != null && { "Authorization": `Bearer ${opts.authToken}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
};
this.#runOpts = {
url: opts.url,
headers: headers,
preemptionMs: 1,
transform: opts.transform,
};
this.#engine = engine;
this.#io = this.memory ? memoryIO() : BrowserIO;
this.#guards = new SyncEngineGuards();
}
/**
* connect database and initialize it in case of clean start
*/
override async connect() {
if (!this.memory) {
this.#worker = await init();
await Promise.all([
registerFileAtWorker(this.#worker, this.name),
registerFileAtWorker(this.#worker, `${this.name}-wal`),
registerFileAtWorker(this.#worker, `${this.name}-wal-revert`),
registerFileAtWorker(this.#worker, `${this.name}-info`),
registerFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await run(this.#runOpts, this.#io, this.#engine, this.#engine.connect());
}
/**
* pull new changes from the remote database
* if {@link SyncDatabaseOpts.longPollTimeoutMs} is set - then server will hold the connection open until either new changes will appear in the database or timeout occurs.
* @returns true if new changes were pulled from the remote
*/
async pull() {
const changes = await this.#guards.wait(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.wait()));
if (changes.empty()) {
return false;
}
await this.#guards.apply(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.apply(changes)));
return true;
}
/**
* push new local changes to the remote database
* if {@link SyncDatabaseOpts.transform} is set - then provided callback will be called for every mutation before sending it to the remote
*/
async push() {
await this.#guards.push(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.push()));
}
/**
* checkpoint WAL for local database
*/
async checkpoint() {
await this.#guards.checkpoint(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.checkpoint()));
}
/**
* @returns statistic of current local database
*/
async stats(): Promise<DatabaseStats> {
return (await run(this.#runOpts, this.#io, this.#engine, this.#engine.stats()));
}
/**
* close the database and relevant files
*/
async close() {
if (this.name != null && this.#worker != null) {
await Promise.all([
unregisterFileAtWorker(this.#worker, this.name),
unregisterFileAtWorker(this.#worker, `${this.name}-wal`),
unregisterFileAtWorker(this.#worker, `${this.name}-wal-revert`),
unregisterFileAtWorker(this.#worker, `${this.name}-info`),
unregisterFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await super.close();
this.#engine.close();
}
}
/**
* Creates a new database connection asynchronously.
*
* @param {string} path - Path to the database file.
* @param {Object} opts - Options for database behavior.
* @returns {Promise<Database>} - A promise that resolves to a Database instance.
*/
async function connect(opts: SyncOpts): Promise<Database> {
return await promiseConnect(opts, x => new SyncEngine(x), async () => {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
});
async function connect(opts: SyncDatabaseOpts): Promise<Database> {
const db = new Database(opts);
await db.connect();
return db;
}
export { connect, Database, }
export { connect, Database }
export type { DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult }

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@@ -1,23 +1,155 @@
import { SyncOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult } from "@tursodatabase/sync-common";
import { connect as promiseConnect, Database } from "./promise.js";
import { SyncEngine, initThreadPool, MainWorker } from "./index-default.js";
import { registerFileAtWorker, unregisterFileAtWorker } from "@tursodatabase/database-browser-common"
import { DatabasePromise } from "@tursodatabase/database-common"
import { ProtocolIo, run, DatabaseOpts as SyncDatabaseOpts, RunOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult, DatabaseStats, SyncEngineGuards } from "@tursodatabase/sync-common";
import { SyncEngine, SyncEngineProtocolVersion, initThreadPool, MainWorker } from "./index-default.js";
let BrowserIO: ProtocolIo = {
async read(path: string): Promise<Buffer | Uint8Array | null> {
const result = localStorage.getItem(path);
if (result == null) {
return null;
}
return new TextEncoder().encode(result);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
const array = new Uint8Array(data);
const value = new TextDecoder('utf-8').decode(array);
localStorage.setItem(path, value);
}
};
function memoryIO(): ProtocolIo {
let values = new Map();
return {
async read(path: string): Promise<Buffer | Uint8Array | null> {
return values.get(path);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
values.set(path, data);
}
}
};
async function init(): Promise<Worker> {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
}
class Database extends DatabasePromise {
#runOpts: RunOpts;
#engine: any;
#io: ProtocolIo;
#guards: SyncEngineGuards;
#worker: Worker | null;
constructor(opts: SyncDatabaseOpts) {
const engine = new SyncEngine({
path: opts.path,
clientName: opts.clientName,
useTransform: opts.transform != null,
protocolVersion: SyncEngineProtocolVersion.V1,
longPollTimeoutMs: opts.longPollTimeoutMs,
tracing: opts.tracing,
});
super(engine.db() as unknown as any);
let headers = typeof opts.authToken === "function" ? () => ({
...(opts.authToken != null && { "Authorization": `Bearer ${(opts.authToken as any)()}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
}) : {
...(opts.authToken != null && { "Authorization": `Bearer ${opts.authToken}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
};
this.#runOpts = {
url: opts.url,
headers: headers,
preemptionMs: 1,
transform: opts.transform,
};
this.#engine = engine;
this.#io = this.memory ? memoryIO() : BrowserIO;
this.#guards = new SyncEngineGuards();
}
/**
* connect database and initialize it in case of clean start
*/
override async connect() {
if (!this.memory) {
this.#worker = await init();
await Promise.all([
registerFileAtWorker(this.#worker, this.name),
registerFileAtWorker(this.#worker, `${this.name}-wal`),
registerFileAtWorker(this.#worker, `${this.name}-wal-revert`),
registerFileAtWorker(this.#worker, `${this.name}-info`),
registerFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await run(this.#runOpts, this.#io, this.#engine, this.#engine.connect());
}
/**
* pull new changes from the remote database
* if {@link SyncDatabaseOpts.longPollTimeoutMs} is set - then server will hold the connection open until either new changes will appear in the database or timeout occurs.
* @returns true if new changes were pulled from the remote
*/
async pull() {
const changes = await this.#guards.wait(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.wait()));
if (changes.empty()) {
return false;
}
await this.#guards.apply(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.apply(changes)));
return true;
}
/**
* push new local changes to the remote database
* if {@link SyncDatabaseOpts.transform} is set - then provided callback will be called for every mutation before sending it to the remote
*/
async push() {
await this.#guards.push(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.push()));
}
/**
* checkpoint WAL for local database
*/
async checkpoint() {
await this.#guards.checkpoint(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.checkpoint()));
}
/**
* @returns statistic of current local database
*/
async stats(): Promise<DatabaseStats> {
return (await run(this.#runOpts, this.#io, this.#engine, this.#engine.stats()));
}
/**
* close the database and relevant files
*/
async close() {
if (this.name != null && this.#worker != null) {
await Promise.all([
unregisterFileAtWorker(this.#worker, this.name),
unregisterFileAtWorker(this.#worker, `${this.name}-wal`),
unregisterFileAtWorker(this.#worker, `${this.name}-wal-revert`),
unregisterFileAtWorker(this.#worker, `${this.name}-info`),
unregisterFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await super.close();
this.#engine.close();
}
}
/**
* Creates a new database connection asynchronously.
*
* @param {string} path - Path to the database file.
* @param {Object} opts - Options for database behavior.
* @returns {Promise<Database>} - A promise that resolves to a Database instance.
*/
async function connect(opts: SyncOpts): Promise<Database> {
return await promiseConnect(opts, x => new SyncEngine(x), async () => {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
});
async function connect(opts: SyncDatabaseOpts): Promise<Database> {
const db = new Database(opts);
await db.connect();
return db;
}
export { connect, Database, }
export { connect, Database }
export type { DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult }

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@@ -1,23 +1,155 @@
import { SyncOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult } from "@tursodatabase/sync-common";
import { connect as promiseConnect, Database } from "./promise.js";
import { SyncEngine, initThreadPool, MainWorker } from "./index-turbopack-hack.js";
import { registerFileAtWorker, unregisterFileAtWorker } from "@tursodatabase/database-browser-common"
import { DatabasePromise } from "@tursodatabase/database-common"
import { ProtocolIo, run, DatabaseOpts as SyncDatabaseOpts, RunOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult, DatabaseStats, SyncEngineGuards } from "@tursodatabase/sync-common";
import { SyncEngine, SyncEngineProtocolVersion, initThreadPool, MainWorker } from "./index-turbopack-hack.js";
let BrowserIO: ProtocolIo = {
async read(path: string): Promise<Buffer | Uint8Array | null> {
const result = localStorage.getItem(path);
if (result == null) {
return null;
}
return new TextEncoder().encode(result);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
const array = new Uint8Array(data);
const value = new TextDecoder('utf-8').decode(array);
localStorage.setItem(path, value);
}
};
function memoryIO(): ProtocolIo {
let values = new Map();
return {
async read(path: string): Promise<Buffer | Uint8Array | null> {
return values.get(path);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
values.set(path, data);
}
}
};
async function init(): Promise<Worker> {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
}
class Database extends DatabasePromise {
#runOpts: RunOpts;
#engine: any;
#io: ProtocolIo;
#guards: SyncEngineGuards;
#worker: Worker | null;
constructor(opts: SyncDatabaseOpts) {
const engine = new SyncEngine({
path: opts.path,
clientName: opts.clientName,
useTransform: opts.transform != null,
protocolVersion: SyncEngineProtocolVersion.V1,
longPollTimeoutMs: opts.longPollTimeoutMs,
tracing: opts.tracing,
});
super(engine.db() as unknown as any);
let headers = typeof opts.authToken === "function" ? () => ({
...(opts.authToken != null && { "Authorization": `Bearer ${(opts.authToken as any)()}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
}) : {
...(opts.authToken != null && { "Authorization": `Bearer ${opts.authToken}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
};
this.#runOpts = {
url: opts.url,
headers: headers,
preemptionMs: 1,
transform: opts.transform,
};
this.#engine = engine;
this.#io = this.memory ? memoryIO() : BrowserIO;
this.#guards = new SyncEngineGuards();
}
/**
* connect database and initialize it in case of clean start
*/
override async connect() {
if (!this.memory) {
this.#worker = await init();
await Promise.all([
registerFileAtWorker(this.#worker, this.name),
registerFileAtWorker(this.#worker, `${this.name}-wal`),
registerFileAtWorker(this.#worker, `${this.name}-wal-revert`),
registerFileAtWorker(this.#worker, `${this.name}-info`),
registerFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await run(this.#runOpts, this.#io, this.#engine, this.#engine.connect());
}
/**
* pull new changes from the remote database
* if {@link SyncDatabaseOpts.longPollTimeoutMs} is set - then server will hold the connection open until either new changes will appear in the database or timeout occurs.
* @returns true if new changes were pulled from the remote
*/
async pull() {
const changes = await this.#guards.wait(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.wait()));
if (changes.empty()) {
return false;
}
await this.#guards.apply(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.apply(changes)));
return true;
}
/**
* push new local changes to the remote database
* if {@link SyncDatabaseOpts.transform} is set - then provided callback will be called for every mutation before sending it to the remote
*/
async push() {
await this.#guards.push(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.push()));
}
/**
* checkpoint WAL for local database
*/
async checkpoint() {
await this.#guards.checkpoint(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.checkpoint()));
}
/**
* @returns statistic of current local database
*/
async stats(): Promise<DatabaseStats> {
return (await run(this.#runOpts, this.#io, this.#engine, this.#engine.stats()));
}
/**
* close the database and relevant files
*/
async close() {
if (this.name != null && this.#worker != null) {
await Promise.all([
unregisterFileAtWorker(this.#worker, this.name),
unregisterFileAtWorker(this.#worker, `${this.name}-wal`),
unregisterFileAtWorker(this.#worker, `${this.name}-wal-revert`),
unregisterFileAtWorker(this.#worker, `${this.name}-info`),
unregisterFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await super.close();
this.#engine.close();
}
}
/**
* Creates a new database connection asynchronously.
*
* @param {string} path - Path to the database file.
* @param {Object} opts - Options for database behavior.
* @returns {Promise<Database>} - A promise that resolves to a Database instance.
*/
async function connect(opts: SyncOpts): Promise<Database> {
return await promiseConnect(opts, x => new SyncEngine(x), async () => {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
});
async function connect(opts: SyncDatabaseOpts): Promise<Database> {
const db = new Database(opts);
await db.connect();
return db;
}
export { connect, Database, }
export { connect, Database }
export type { DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult }

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@@ -1,23 +1,155 @@
import { SyncOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult } from "@tursodatabase/sync-common";
import { connect as promiseConnect, Database } from "./promise.js";
import { SyncEngine, initThreadPool, MainWorker } from "./index-vite-dev-hack.js";
import { registerFileAtWorker, unregisterFileAtWorker } from "@tursodatabase/database-browser-common"
import { DatabasePromise } from "@tursodatabase/database-common"
import { ProtocolIo, run, DatabaseOpts as SyncDatabaseOpts, RunOpts, DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult, DatabaseStats, SyncEngineGuards } from "@tursodatabase/sync-common";
import { SyncEngine, SyncEngineProtocolVersion, initThreadPool, MainWorker } from "./index-vite-dev-hack.js";
let BrowserIO: ProtocolIo = {
async read(path: string): Promise<Buffer | Uint8Array | null> {
const result = localStorage.getItem(path);
if (result == null) {
return null;
}
return new TextEncoder().encode(result);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
const array = new Uint8Array(data);
const value = new TextDecoder('utf-8').decode(array);
localStorage.setItem(path, value);
}
};
function memoryIO(): ProtocolIo {
let values = new Map();
return {
async read(path: string): Promise<Buffer | Uint8Array | null> {
return values.get(path);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
values.set(path, data);
}
}
};
async function init(): Promise<Worker> {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
}
class Database extends DatabasePromise {
#runOpts: RunOpts;
#engine: any;
#io: ProtocolIo;
#guards: SyncEngineGuards;
#worker: Worker | null;
constructor(opts: SyncDatabaseOpts) {
const engine = new SyncEngine({
path: opts.path,
clientName: opts.clientName,
useTransform: opts.transform != null,
protocolVersion: SyncEngineProtocolVersion.V1,
longPollTimeoutMs: opts.longPollTimeoutMs,
tracing: opts.tracing,
});
super(engine.db() as unknown as any);
let headers = typeof opts.authToken === "function" ? () => ({
...(opts.authToken != null && { "Authorization": `Bearer ${(opts.authToken as any)()}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
}) : {
...(opts.authToken != null && { "Authorization": `Bearer ${opts.authToken}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
};
this.#runOpts = {
url: opts.url,
headers: headers,
preemptionMs: 1,
transform: opts.transform,
};
this.#engine = engine;
this.#io = this.memory ? memoryIO() : BrowserIO;
this.#guards = new SyncEngineGuards();
}
/**
* connect database and initialize it in case of clean start
*/
override async connect() {
if (!this.memory) {
this.#worker = await init();
await Promise.all([
registerFileAtWorker(this.#worker, this.name),
registerFileAtWorker(this.#worker, `${this.name}-wal`),
registerFileAtWorker(this.#worker, `${this.name}-wal-revert`),
registerFileAtWorker(this.#worker, `${this.name}-info`),
registerFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await run(this.#runOpts, this.#io, this.#engine, this.#engine.connect());
}
/**
* pull new changes from the remote database
* if {@link SyncDatabaseOpts.longPollTimeoutMs} is set - then server will hold the connection open until either new changes will appear in the database or timeout occurs.
* @returns true if new changes were pulled from the remote
*/
async pull() {
const changes = await this.#guards.wait(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.wait()));
if (changes.empty()) {
return false;
}
await this.#guards.apply(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.apply(changes)));
return true;
}
/**
* push new local changes to the remote database
* if {@link SyncDatabaseOpts.transform} is set - then provided callback will be called for every mutation before sending it to the remote
*/
async push() {
await this.#guards.push(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.push()));
}
/**
* checkpoint WAL for local database
*/
async checkpoint() {
await this.#guards.checkpoint(async () => await run(this.#runOpts, this.#io, this.#engine, this.#engine.checkpoint()));
}
/**
* @returns statistic of current local database
*/
async stats(): Promise<DatabaseStats> {
return (await run(this.#runOpts, this.#io, this.#engine, this.#engine.stats()));
}
/**
* close the database and relevant files
*/
async close() {
if (this.name != null && this.#worker != null) {
await Promise.all([
unregisterFileAtWorker(this.#worker, this.name),
unregisterFileAtWorker(this.#worker, `${this.name}-wal`),
unregisterFileAtWorker(this.#worker, `${this.name}-wal-revert`),
unregisterFileAtWorker(this.#worker, `${this.name}-info`),
unregisterFileAtWorker(this.#worker, `${this.name}-changes`),
]);
}
await super.close();
this.#engine.close();
}
}
/**
* Creates a new database connection asynchronously.
*
* @param {string} path - Path to the database file.
* @param {Object} opts - Options for database behavior.
* @returns {Promise<Database>} - A promise that resolves to a Database instance.
*/
async function connect(opts: SyncOpts): Promise<Database> {
return await promiseConnect(opts, x => new SyncEngine(x), async () => {
await initThreadPool();
if (MainWorker == null) {
throw new Error("panic: MainWorker is not initialized");
}
return MainWorker;
});
async function connect(opts: SyncDatabaseOpts): Promise<Database> {
const db = new Database(opts);
await db.connect();
return db;
}
export { connect, Database, }
export { connect, Database }
export type { DatabaseRowMutation, DatabaseRowStatement, DatabaseRowTransformResult }

View File

@@ -331,7 +331,6 @@ test('concurrent-updates', { timeout: 60000 }, async () => {
}
async function pull(db, i) {
try {
console.info('pull', i);
await db.pull();
} catch (e) {
console.error('pull', i, e);
@@ -343,7 +342,6 @@ test('concurrent-updates', { timeout: 60000 }, async () => {
}
async function push(db, i) {
try {
console.info('push', i);
await db.push();
} catch (e) {
console.error('push', i, e);

View File

@@ -1,113 +0,0 @@
import { registerFileAtWorker, unregisterFileAtWorker } from "@tursodatabase/database-browser-common"
import { DatabasePromise, DatabaseOpts, NativeDatabase } from "@tursodatabase/database-common"
import { ProtocolIo, run, SyncOpts, RunOpts, memoryIO, SyncEngineStats, SyncEngineGuards } from "@tursodatabase/sync-common";
let BrowserIo: ProtocolIo = {
async read(path: string): Promise<Buffer | Uint8Array | null> {
const result = localStorage.getItem(path);
if (result == null) {
return null;
}
return new TextEncoder().encode(result);
},
async write(path: string, data: Buffer | Uint8Array): Promise<void> {
const array = new Uint8Array(data);
const value = new TextDecoder('utf-8').decode(array);
localStorage.setItem(path, value);
}
};
class Database extends DatabasePromise {
runOpts: RunOpts;
engine: any;
io: ProtocolIo;
worker: Worker | null;
fsPath: string | null;
guards: SyncEngineGuards;
constructor(db: NativeDatabase, io: ProtocolIo, worker: Worker | null, runOpts: RunOpts, engine: any, fsPath: string | null, opts: DatabaseOpts = {}) {
super(db, opts)
this.io = io;
this.worker = worker;
this.runOpts = runOpts;
this.engine = engine;
this.fsPath = fsPath;
this.guards = new SyncEngineGuards();
}
async sync() {
await this.push();
await this.pull();
}
async pull() {
const changes = await this.guards.wait(async () => await run(this.runOpts, this.io, this.engine, this.engine.wait()));
await this.guards.apply(async () => await run(this.runOpts, this.io, this.engine, this.engine.apply(changes)));
}
async push() {
await this.guards.push(async () => await run(this.runOpts, this.io, this.engine, this.engine.push()));
}
async checkpoint() {
await this.guards.checkpoint(async () => await run(this.runOpts, this.io, this.engine, this.engine.checkpoint()));
}
async stats(): Promise<SyncEngineStats> {
return (await run(this.runOpts, this.io, this.engine, this.engine.stats()));
}
override async close(): Promise<void> {
this.db.close();
this.engine.close();
if (this.fsPath != null && this.worker != null) {
await Promise.all([
unregisterFileAtWorker(this.worker, this.fsPath),
unregisterFileAtWorker(this.worker, `${this.fsPath}-wal`),
unregisterFileAtWorker(this.worker, `${this.fsPath}-wal-revert`),
unregisterFileAtWorker(this.worker, `${this.fsPath}-info`),
unregisterFileAtWorker(this.worker, `${this.fsPath}-changes`),
]);
}
}
}
/**
* Creates a new database connection asynchronously.
*
* @param {string} path - Path to the database file.
* @param {Object} opts - Options for database behavior.
* @returns {Promise<Database>} - A promise that resolves to a Database instance.
*/
async function connect(opts: SyncOpts, connect: (any) => any, init: () => Promise<Worker>): Promise<Database> {
const engine = connect({
path: opts.path,
clientName: opts.clientName,
tablesIgnore: opts.tablesIgnore,
useTransform: opts.transform != null,
tracing: opts.tracing,
protocolVersion: 1,
longPollTimeoutMs: opts.longPollTimeoutMs
});
const runOpts: RunOpts = {
url: opts.url,
headers: {
...(opts.authToken != null && { "Authorization": `Bearer ${opts.authToken}` }),
...(opts.encryptionKey != null && { "x-turso-encryption-key": opts.encryptionKey })
},
preemptionMs: 1,
transform: opts.transform,
};
const isMemory = opts.path == ':memory:';
let io = isMemory ? memoryIO() : BrowserIo;
const worker = await init();
if (!isMemory) {
await Promise.all([
registerFileAtWorker(worker, opts.path),
registerFileAtWorker(worker, `${opts.path}-wal`),
registerFileAtWorker(worker, `${opts.path}-wal-revert`),
registerFileAtWorker(worker, `${opts.path}-info`),
registerFileAtWorker(worker, `${opts.path}-changes`),
]);
}
await run(runOpts, io, engine, engine.init());
const nativeDb = engine.open();
return new Database(nativeDb as any, io, worker, runOpts, engine, isMemory ? null : opts.path, {});
}
export { connect, Database }