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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { clearInterval, setInterval } = ChromeUtils.importESModule(
"resource://gre/modules/Timer.sys.mjs"
);
const EventEmitter = require("resource://devtools/shared/event-emitter.js");
const {
adbProcess,
} = require("resource://devtools/client/shared/remote-debugging/adb/adb-process.js");
const {
adbAddon,
} = require("resource://devtools/client/shared/remote-debugging/adb/adb-addon.js");
const AdbDevice = require("resource://devtools/client/shared/remote-debugging/adb/adb-device.js");
const {
AdbRuntime,
} = require("resource://devtools/client/shared/remote-debugging/adb/adb-runtime.js");
const {
TrackDevicesCommand,
} = require("resource://devtools/client/shared/remote-debugging/adb/commands/track-devices.js");
loader.lazyRequireGetter(
this,
"check",
"resource://devtools/client/shared/remote-debugging/adb/adb-running-checker.js",
true
);
// Duration in milliseconds of the runtime polling. We resort to polling here because we
// have no event to know when a runtime started on an already discovered ADB device.
const UPDATE_RUNTIMES_INTERVAL = 3000;
class Adb extends EventEmitter {
constructor() {
super();
this._trackDevicesCommand = new TrackDevicesCommand();
this._isTrackingDevices = false;
this._isUpdatingRuntimes = false;
this._listeners = new Set();
this._devices = new Map();
this._runtimes = [];
this._updateAdbProcess = this._updateAdbProcess.bind(this);
this._onDeviceConnected = this._onDeviceConnected.bind(this);
this._onDeviceDisconnected = this._onDeviceDisconnected.bind(this);
this._onNoDevicesDetected = this._onNoDevicesDetected.bind(this);
this._trackDevicesCommand.on("device-connected", this._onDeviceConnected);
this._trackDevicesCommand.on(
"device-disconnected",
this._onDeviceDisconnected
);
this._trackDevicesCommand.on(
"no-devices-detected",
this._onNoDevicesDetected
);
adbAddon.on("update", this._updateAdbProcess);
}
registerListener(listener) {
this._listeners.add(listener);
this.on("runtime-list-updated", listener);
this._updateAdbProcess();
}
unregisterListener(listener) {
this._listeners.delete(listener);
this.off("runtime-list-updated", listener);
this._updateAdbProcess();
}
async updateRuntimes() {
try {
const devices = [...this._devices.values()];
const promises = devices.map(d => this._getDeviceRuntimes(d));
const allRuntimes = await Promise.all(promises);
this._runtimes = allRuntimes.flat();
this.emit("runtime-list-updated");
} catch (e) {
console.error(e);
}
}
getRuntimes() {
return this._runtimes;
}
getDevices() {
return [...this._devices.values()];
}
async isProcessStarted() {
return check();
}
async _startTracking() {
this._isTrackingDevices = true;
await adbProcess.start();
this._trackDevicesCommand.run();
// Device runtimes are detected by running a shell command and checking for
// "firefox-debugger-socket" in the list of currently running processes.
this._timer = setInterval(
this.updateRuntimes.bind(this),
UPDATE_RUNTIMES_INTERVAL
);
}
async _stopTracking() {
clearInterval(this._timer);
this._isTrackingDevices = false;
this._trackDevicesCommand.stop();
this._devices = new Map();
this._runtimes = [];
this.updateRuntimes();
}
_shouldTrack() {
return adbAddon.status === "installed" && this._listeners.size > 0;
}
/**
* This method will emit "runtime-list-ready" to notify the consumer that the list of
* runtimes is ready to be retrieved.
*/
async _updateAdbProcess() {
if (!this._isTrackingDevices && this._shouldTrack()) {
const onRuntimesUpdated = this.once("runtime-list-updated");
this._startTracking();
// If we are starting to track runtimes, the list of runtimes will only be ready
// once the first "runtime-list-updated" event has been processed.
await onRuntimesUpdated;
} else if (this._isTrackingDevices && !this._shouldTrack()) {
this._stopTracking();
}
this.emit("runtime-list-ready");
}
async _onDeviceConnected(deviceId) {
const adbDevice = new AdbDevice(deviceId);
await adbDevice.initialize();
this._devices.set(deviceId, adbDevice);
this.updateRuntimes();
}
_onDeviceDisconnected(deviceId) {
this._devices.delete(deviceId);
this.updateRuntimes();
}
_onNoDevicesDetected() {
this.updateRuntimes();
}
async _getDeviceRuntimes(device) {
const socketPaths = [...(await device.getRuntimeSocketPaths())];
const runtimes = [];
for (const socketPath of socketPaths) {
const runtime = new AdbRuntime(device, socketPath);
await runtime.init();
runtimes.push(runtime);
}
return runtimes;
}
}
exports.adb = new Adb();
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