ethers.js/lib.commonjs/providers/provider-ipcsocket.js
2022-09-05 16:57:11 -04:00

90 lines
2.5 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IpcSocketProvider = void 0;
const net_1 = require("net");
const provider_socket_js_1 = require("./provider-socket.js");
// @TODO: Is this sufficient? Is this robust? Will newlines occur between
// all payloads and only between payloads?
function splitBuffer(data) {
const messages = [];
let lastStart = 0;
while (true) {
const nl = data.indexOf(10, lastStart);
if (nl === -1) {
break;
}
messages.push(data.subarray(lastStart, nl).toString().trim());
lastStart = nl + 1;
}
return { messages, remaining: data.subarray(lastStart) };
}
class IpcSocketProvider extends provider_socket_js_1.SocketProvider {
#socket;
get socket() { return this.#socket; }
constructor(path, network) {
super(network);
this.#socket = (0, net_1.connect)(path);
this.socket.on("ready", () => { this._start(); });
let response = Buffer.alloc(0);
this.socket.on("data", (data) => {
response = Buffer.concat([response, data]);
const { messages, remaining } = splitBuffer(response);
messages.forEach((message) => {
this._processMessage(message);
});
response = remaining;
});
this.socket.on("end", () => {
this.emit("close");
this.socket.destroy();
this.socket.end();
});
}
stop() {
this.socket.destroy();
this.socket.end();
}
async _write(message) {
console.log(">>>", message);
this.socket.write(message);
}
}
exports.IpcSocketProvider = IpcSocketProvider;
/*
import { defineProperties } from "@ethersproject/properties";
import { SocketLike, SocketProvider } from "./provider-socket.js";
import type { Socket } from "net";
export class SocketWrapper implements SocketLike {
#socket: Socket;
constructor(path: string) {
this.#socket = connect(path);
}
send(data: string): void {
this.#socket.write(data, () => { });
}
addEventListener(event: string, listener: (data: string) => void): void {
//this.#socket.on(event, (value: ) => {
//});
}
close(): void {
}
}
export class IpcProvider extends SocketProvider {
readonly path!: string;
constructor(path: string) {
super(new SocketWrapper(path));
defineProperties<IpcProvider>(this, { path });
}
}
*/
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