@u4/adbkit/dist/adb/jdwptracker.js

A Typescript client for the Android Debug Bridge.

/* eslint-disable @typescript-eslint/no-explicit-any */
import EventEmitter from 'node:events';
import { AdbPrematureEOFError } from './errors.js';
export default class JdwpTracker extends EventEmitter {
    // private reader: Promise<JdwpTracker | boolean>;
    constructor(command) {
        super();
        this.command = command;
        this.pids = [];
        this.pidMap = Object.create(null);
        this.on = (event, listener) => super.on(event, listener);
        this.off = (event, listener) => super.off(event, listener);
        this.once = (event, listener) => super.once(event, listener);
        this.emit = (event, ...args) => super.emit(event, ...args);
        this.command = command;
        this.pids = [];
        this.pidMap = Object.create(null);
        // this.reader = 
        this.read().catch(err => {
            if (err instanceof AdbPrematureEOFError) {
                return this.emit('end');
            }
            this.command.connection.end();
            this.emit('error', err);
            return this.emit('end');
        });
    }
    async read() {
        const list = await this.command.parser.readValue('utf8');
        const pids = list.split('\n');
        const maybeEmpty = pids.pop();
        if (maybeEmpty) {
            pids.push(maybeEmpty);
        }
        return this.update(pids);
    }
    update(newList) {
        const changeSet = {
            removed: [],
            added: [],
        };
        const newMap = Object.create(null);
        for (let i = 0, len = newList.length; i < len; i++) {
            const pid = newList[i];
            if (!this.pidMap[pid]) {
                changeSet.added.push(pid);
                this.emit('add', pid);
                newMap[pid] = pid;
            }
        }
        const ref = this.pids;
        for (let j = 0, len1 = ref.length; j < len1; j++) {
            const pid = ref[j];
            if (!newMap[pid]) {
                changeSet.removed.push(pid);
                this.emit('remove', pid);
            }
        }
        this.pids = newList;
        this.pidMap = newMap;
        this.emit('changeSet', changeSet, newList);
        return this;
    }
    end() {
        return this;
    }
}
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