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Mini Shell
Mini Shell
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const module_1 = require("../utils/module");
const configuration_1 = require("../configuration");
const serviceManager_1 = require("../serviceManager");
const miscellaneous_1 = require("../utils/miscellaneous");
const Debug = require("debug");
class CurrentProfile {
}
class AddonProfiler {
constructor() {
this.profiler = null;
this.modules = ['v8-profiler-node8', 'v8-profiler'];
this.currentProfile = null;
this.logger = Debug('axm:features:profiling:addon');
}
init() {
for (const moduleName of this.modules) {
let path = module_1.default.detectModule(moduleName);
if (path === null)
continue;
let profiler = module_1.default.loadModule(moduleName);
if (profiler instanceof Error)
continue;
this.profiler = profiler;
break;
}
if (this.profiler === null) {
configuration_1.default.configureModule({
heapdump: false,
'feature.profiler.heap_snapshot': false,
'feature.profiler.heap_sampling': false,
'feature.profiler.cpu_js': false
});
return this.logger(`Failed to require the profiler via addon, disabling profiling ...`);
}
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': true,
'feature.profiler.heapsampling': false,
'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));
}
destroy() {
this.logger('Addon Profiler destroyed !');
if (this.profiler === null)
return;
this.profiler.deleteAllProfiles();
}
onCPUProfileStart(opts, cb) {
if (typeof cb !== 'function') {
cb = opts;
opts = {};
}
if (typeof opts !== 'object' || opts === null) {
opts = {};
}
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 });
this.profiler.startProfiling();
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.transport === undefined) {
return cb({
err: 'No profiling are already running',
success: false
});
}
const profile = this.profiler.stopProfiling();
const data = JSON.stringify(profile);
cb({ success: true, uuid: this.currentProfile.uuid });
this.transport.send('profilings', {
uuid: this.currentProfile.uuid,
duration: Date.now() - this.currentProfile.startTime,
at: this.currentProfile.startTime,
data,
dump_file_size: data.length,
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 = {};
}
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) => {
const snapshot = this.profiler.takeSnapshot();
snapshot.export((err, data) => {
if (err) {
reject(err);
}
else {
resolve(data);
}
snapshot.delete();
});
});
}
}
exports.default = AddonProfiler;
Zerion Mini Shell 1.0