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Mini Shell
Mini Shell
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const configuration_1 = require("../configuration");
const serviceManager_1 = require("../serviceManager");
const miscellaneous_1 = require("../utils/miscellaneous");
const Debug = require("debug");
const semver = require("semver");
class CurrentProfile {
}
class InspectorProfiler {
constructor() {
this.profiler = undefined;
this.currentProfile = null;
this.logger = Debug('axm:features:profiling:inspector');
this.isNode11 = semver.satisfies(semver.clean(process.version), '>11.x');
}
init() {
this.profiler = serviceManager_1.ServiceManager.get('inspector');
if (this.profiler === undefined) {
configuration_1.default.configureModule({
heapdump: false,
'feature.profiler.heap_snapshot': false,
'feature.profiler.heap_sampling': false,
'feature.profiler.cpu_js': false
});
return console.error(`Failed to require the profiler via inspector, disabling profiling ...`);
}
this.profiler.getSession().post('Profiler.enable');
this.profiler.getSession().post('HeapProfiler.enable');
this.logger('init');
this.actionService = serviceManager_1.ServiceManager.get('actions');
if (this.actionService === undefined) {
return this.logger(`Fail to get action service`);
}
this.transport = serviceManager_1.ServiceManager.get('transport');
if (this.transport === undefined) {
return this.logger(`Fail to get transport service`);
}
configuration_1.default.configureModule({
heapdump: true,
'feature.profiler.heapsnapshot': !this.isNode11,
'feature.profiler.heapsampling': true,
'feature.profiler.cpu_js': true
});
this.register();
}
register() {
if (this.actionService === undefined) {
return this.logger(`Fail to get action service`);
}
this.logger('register');
this.actionService.registerAction('km:heapdump', this.onHeapdump.bind(this));
this.actionService.registerAction('km:cpu:profiling:start', this.onCPUProfileStart.bind(this));
this.actionService.registerAction('km:cpu:profiling:stop', this.onCPUProfileStop.bind(this));
this.actionService.registerAction('km:heap:sampling:start', this.onHeapProfileStart.bind(this));
this.actionService.registerAction('km:heap:sampling:stop', this.onHeapProfileStop.bind(this));
}
destroy() {
this.logger('Inspector Profiler destroyed !');
if (this.profiler === undefined)
return;
this.profiler.getSession().post('Profiler.disable');
this.profiler.getSession().post('HeapProfiler.disable');
}
onHeapProfileStart(opts, cb) {
if (typeof cb !== 'function') {
cb = opts;
opts = {};
}
if (typeof opts !== 'object' || opts === null) {
opts = {};
}
if (this.profiler === undefined) {
return cb({
err: 'Profiler not available',
success: false
});
}
if (this.currentProfile !== null) {
return cb({
err: 'A profiling is already running',
success: false
});
}
this.currentProfile = new CurrentProfile();
this.currentProfile.uuid = miscellaneous_1.default.generateUUID();
this.currentProfile.startTime = Date.now();
this.currentProfile.initiated = typeof opts.initiated === 'string'
? opts.initiated : 'manual';
cb({ success: true, uuid: this.currentProfile.uuid });
const defaultSamplingInterval = 16384;
this.profiler.getSession().post('HeapProfiler.startSampling', {
samplingInterval: typeof opts.samplingInterval === 'number'
? opts.samplingInterval : defaultSamplingInterval
});
if (isNaN(parseInt(opts.timeout, 10)))
return;
const duration = parseInt(opts.timeout, 10);
setTimeout(_ => {
this.onHeapProfileStop(_ => {
return;
});
}, duration);
}
onHeapProfileStop(cb) {
if (this.currentProfile === null) {
return cb({
err: 'No profiling are already running',
success: false
});
}
if (this.profiler === undefined) {
return cb({
err: 'Profiler not available',
success: false
});
}
cb({ success: true, uuid: this.currentProfile.uuid });
this.profiler.getSession().post('HeapProfiler.stopSampling', (_, { profile }) => {
if (this.currentProfile === null)
return;
if (this.transport === undefined)
return;
const data = JSON.stringify(profile);
this.transport.send('profilings', {
uuid: this.currentProfile.uuid,
duration: Date.now() - this.currentProfile.startTime,
at: this.currentProfile.startTime,
data,
success: true,
initiated: this.currentProfile.initiated,
type: 'heapprofile',
heapprofile: true
});
this.currentProfile = null;
});
}
onCPUProfileStart(opts, cb) {
if (typeof cb !== 'function') {
cb = opts;
opts = {};
}
if (typeof opts !== 'object' || opts === null) {
opts = {};
}
if (this.profiler === undefined) {
return cb({
err: 'Profiler not available',
success: false
});
}
if (this.currentProfile !== null) {
return cb({
err: 'A profiling is already running',
success: false
});
}
this.currentProfile = new CurrentProfile();
this.currentProfile.uuid = miscellaneous_1.default.generateUUID();
this.currentProfile.startTime = Date.now();
this.currentProfile.initiated = typeof opts.initiated === 'string'
? opts.initiated : 'manual';
cb({ success: true, uuid: this.currentProfile.uuid });
if (process.hasOwnProperty('_startProfilerIdleNotifier') === true) {
process._startProfilerIdleNotifier();
}
this.profiler.getSession().post('Profiler.start');
if (isNaN(parseInt(opts.timeout, 10)))
return;
const duration = parseInt(opts.timeout, 10);
setTimeout(_ => {
this.onCPUProfileStop(_ => {
return;
});
}, duration);
}
onCPUProfileStop(cb) {
if (this.currentProfile === null) {
return cb({
err: 'No profiling are already running',
success: false
});
}
if (this.profiler === undefined) {
return cb({
err: 'Profiler not available',
success: false
});
}
cb({ success: true, uuid: this.currentProfile.uuid });
if (process.hasOwnProperty('_stopProfilerIdleNotifier') === true) {
process._stopProfilerIdleNotifier();
}
this.profiler.getSession().post('Profiler.stop', (_, res) => {
if (this.currentProfile === null)
return;
if (this.transport === undefined)
return;
const profile = res.profile;
const data = JSON.stringify(profile);
this.transport.send('profilings', {
uuid: this.currentProfile.uuid,
duration: Date.now() - this.currentProfile.startTime,
at: this.currentProfile.startTime,
data,
success: true,
initiated: this.currentProfile.initiated,
type: 'cpuprofile',
cpuprofile: true
});
this.currentProfile = null;
});
}
onHeapdump(opts, cb) {
if (typeof cb !== 'function') {
cb = opts;
opts = {};
}
if (typeof opts !== 'object' || opts === null) {
opts = {};
}
if (this.profiler === undefined) {
return cb({
err: 'Profiler not available',
success: false
});
}
cb({ success: true });
setTimeout(() => {
const startTime = Date.now();
this.takeSnapshot()
.then(data => {
return this.transport.send('profilings', {
data,
at: startTime,
initiated: typeof opts.initiated === 'string' ? opts.initiated : 'manual',
duration: Date.now() - startTime,
type: 'heapdump'
});
}).catch(err => {
return cb({
success: err.message,
err: err
});
});
}, 200);
}
takeSnapshot() {
return new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () {
if (this.profiler === undefined)
return reject(new Error(`Profiler not available`));
const chunks = [];
const chunkHandler = (raw) => {
const data = raw.params;
chunks.push(data.chunk);
};
this.profiler.getSession().on('HeapProfiler.addHeapSnapshotChunk', chunkHandler);
yield this.profiler.getSession().post('HeapProfiler.takeHeapSnapshot', {
reportProgress: false
});
this.profiler.getSession().removeListener('HeapProfiler.addHeapSnapshotChunk', chunkHandler);
return resolve(chunks.join(''));
}));
}
}
exports.default = InspectorProfiler;
Zerion Mini Shell 1.0