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META-INF.dirigible.dev-tools.profiler.HeapSnapshotProxy.js Maven / Gradle / Ivy
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import * as Common from '../common/common.js';
import * as HeapSnapshotModel from '../heap_snapshot_model/heap_snapshot_model.js'; // eslint-disable-line no-unused-vars
import {ChildrenProvider} from './ChildrenProvider.js'; // eslint-disable-line no-unused-vars
/**
* @unrestricted
*/
export class HeapSnapshotWorkerProxy extends Common.ObjectWrapper.ObjectWrapper {
/**
* @param {function(string, *)} eventHandler
*/
constructor(eventHandler) {
super();
this._eventHandler = eventHandler;
this._nextObjectId = 1;
this._nextCallId = 1;
/** @type {!Map} */
this._callbacks = new Map();
/** @type {!Set} */
this._previousCallbacks = new Set();
this._worker = new Common.Worker.WorkerWrapper('heap_snapshot_worker_entrypoint');
this._worker.onmessage = this._messageReceived.bind(this);
}
/**
* @param {number} profileUid
* @param {function(!HeapSnapshotProxy)} snapshotReceivedCallback
* @return {!HeapSnapshotLoaderProxy}
*/
createLoader(profileUid, snapshotReceivedCallback) {
const objectId = this._nextObjectId++;
const proxy = new HeapSnapshotLoaderProxy(this, objectId, profileUid, snapshotReceivedCallback);
this._postMessage({
callId: this._nextCallId++,
disposition: 'create',
objectId: objectId,
methodName: 'HeapSnapshotWorker.HeapSnapshotLoader'
});
return proxy;
}
dispose() {
this._worker.terminate();
if (this._interval) {
clearInterval(this._interval);
}
}
disposeObject(objectId) {
this._postMessage({callId: this._nextCallId++, disposition: 'dispose', objectId: objectId});
}
evaluateForTest(script, callback) {
const callId = this._nextCallId++;
this._callbacks.set(callId, callback);
this._postMessage({callId: callId, disposition: 'evaluateForTest', source: script});
}
/**
* @param {?function(...?)} callback
* @param {string} objectId
* @param {string} methodName
* @param {function(new:T, ...?)} proxyConstructor
* @return {?Object}
* @template T
*/
callFactoryMethod(callback, objectId, methodName, proxyConstructor) {
const callId = this._nextCallId++;
const methodArguments = Array.prototype.slice.call(arguments, 4);
const newObjectId = this._nextObjectId++;
/**
* @this {HeapSnapshotWorkerProxy}
*/
function wrapCallback(remoteResult) {
callback(remoteResult ? new proxyConstructor(this, newObjectId) : null);
}
if (callback) {
this._callbacks.set(callId, wrapCallback.bind(this));
this._postMessage({
callId: callId,
disposition: 'factory',
objectId: objectId,
methodName: methodName,
methodArguments: methodArguments,
newObjectId: newObjectId
});
return null;
}
this._postMessage({
callId: callId,
disposition: 'factory',
objectId: objectId,
methodName: methodName,
methodArguments: methodArguments,
newObjectId: newObjectId
});
return new proxyConstructor(this, newObjectId);
}
/**
* @param {function(*)} callback
* @param {string} objectId
* @param {string} methodName
*/
callMethod(callback, objectId, methodName) {
const callId = this._nextCallId++;
const methodArguments = Array.prototype.slice.call(arguments, 3);
if (callback) {
this._callbacks.set(callId, callback);
}
this._postMessage({
callId: callId,
disposition: 'method',
objectId: objectId,
methodName: methodName,
methodArguments: methodArguments
});
}
startCheckingForLongRunningCalls() {
if (this._interval) {
return;
}
this._checkLongRunningCalls();
this._interval = setInterval(this._checkLongRunningCalls.bind(this), 300);
}
_checkLongRunningCalls() {
for (const callId of this._previousCallbacks) {
if (!this._callbacks.has(callId)) {
this._previousCallbacks.delete(callId);
}
}
const hasLongRunningCalls = !!this._previousCallbacks.size;
this.dispatchEventToListeners(HeapSnapshotWorkerProxy.Events.Wait, hasLongRunningCalls);
for (const callId of this._callbacks.keys()) {
this._previousCallbacks.add(callId);
}
}
/**
* @param {!MessageEvent} event
*/
_messageReceived(event) {
const data = event.data;
if (data.eventName) {
if (this._eventHandler) {
this._eventHandler(data.eventName, data.data);
}
return;
}
if (data.error) {
if (data.errorMethodName) {
Common.Console.Console.instance().error(Common.UIString.UIString(
'An error occurred when a call to method \'%s\' was requested', data.errorMethodName));
}
Common.Console.Console.instance().error(data['errorCallStack']);
this._callbacks.delete(data.callId);
return;
}
if (!this._callbacks.has(data.callId)) {
return;
}
const callback = this._callbacks.get(data.callId);
this._callbacks.delete(data.callId);
callback(data.result);
}
_postMessage(message) {
this._worker.postMessage(message);
}
}
HeapSnapshotWorkerProxy.Events = {
Wait: Symbol('Wait')
};
/**
* @unrestricted
*/
export class HeapSnapshotProxyObject {
/**
* @param {!HeapSnapshotWorkerProxy} worker
* @param {number} objectId
*/
constructor(worker, objectId) {
this._worker = worker;
this._objectId = objectId;
}
/**
* @param {string} workerMethodName
* @param {!Array.<*>} args
*/
_callWorker(workerMethodName, args) {
args.splice(1, 0, this._objectId);
return this._worker[workerMethodName].apply(this._worker, args);
}
dispose() {
this._worker.disposeObject(this._objectId);
}
disposeWorker() {
this._worker.dispose();
}
/**
* @param {?function(...?)} callback
* @param {string} methodName
* @param {function (new:T, ...?)} proxyConstructor
* @param {...*} var_args
* @return {!T}
* @template T
*/
callFactoryMethod(callback, methodName, proxyConstructor, var_args) {
return this._callWorker('callFactoryMethod', Array.prototype.slice.call(arguments, 0));
}
/**
* @param {string} methodName
* @param {...*} var_args
* @return {!Promise.}
* @template T
*/
_callMethodPromise(methodName, var_args) {
const args = Array.prototype.slice.call(arguments);
return new Promise(resolve => this._callWorker('callMethod', [resolve, ...args]));
}
}
/**
* @implements {Common.StringOutputStream.OutputStream}
* @unrestricted
*/
export class HeapSnapshotLoaderProxy extends HeapSnapshotProxyObject {
/**
* @param {!HeapSnapshotWorkerProxy} worker
* @param {number} objectId
* @param {number} profileUid
* @param {function(!HeapSnapshotProxy)} snapshotReceivedCallback
*/
constructor(worker, objectId, profileUid, snapshotReceivedCallback) {
super(worker, objectId);
this._profileUid = profileUid;
this._snapshotReceivedCallback = snapshotReceivedCallback;
}
/**
* @override
* @param {string} chunk
* @return {!Promise}
*/
write(chunk) {
return this._callMethodPromise('write', chunk);
}
/**
* @override
*/
async close() {
await this._callMethodPromise('close');
const snapshotProxy =
await new Promise(resolve => this.callFactoryMethod(resolve, 'buildSnapshot', HeapSnapshotProxy));
this.dispose();
snapshotProxy.setProfileUid(this._profileUid);
await snapshotProxy.updateStaticData();
this._snapshotReceivedCallback(snapshotProxy);
}
}
/**
* @unrestricted
*/
export class HeapSnapshotProxy extends HeapSnapshotProxyObject {
/**
* @param {!HeapSnapshotWorkerProxy} worker
* @param {number} objectId
*/
constructor(worker, objectId) {
super(worker, objectId);
/** @type {?HeapSnapshotModel.HeapSnapshotModel.StaticData} */
this._staticData = null;
}
/**
* @param {!HeapSnapshotModel.HeapSnapshotModel.SearchConfig} searchConfig
* @param {!HeapSnapshotModel.HeapSnapshotModel.NodeFilter} filter
* @return {!Promise>}
*/
search(searchConfig, filter) {
return this._callMethodPromise('search', searchConfig, filter);
}
/**
* @param {!HeapSnapshotModel.HeapSnapshotModel.NodeFilter} filter
* @return {!Promise>}
*/
aggregatesWithFilter(filter) {
return this._callMethodPromise('aggregatesWithFilter', filter);
}
/**
* @return {!Promise>}
*/
aggregatesForDiff() {
return this._callMethodPromise('aggregatesForDiff');
}
/**
* @param {string} baseSnapshotId
* @param {!Object} baseSnapshotAggregates
* @return {!Promise>}
*/
calculateSnapshotDiff(baseSnapshotId, baseSnapshotAggregates) {
return this._callMethodPromise('calculateSnapshotDiff', baseSnapshotId, baseSnapshotAggregates);
}
/**
* @param {number} snapshotObjectId
* @return {!Promise}
*/
nodeClassName(snapshotObjectId) {
return this._callMethodPromise('nodeClassName', snapshotObjectId);
}
/**
* @param {number} nodeIndex
* @return {!HeapSnapshotProviderProxy}
*/
createEdgesProvider(nodeIndex) {
return this.callFactoryMethod(null, 'createEdgesProvider', HeapSnapshotProviderProxy, nodeIndex);
}
/**
* @param {number} nodeIndex
* @return {!HeapSnapshotProviderProxy}
*/
createRetainingEdgesProvider(nodeIndex) {
return this.callFactoryMethod(null, 'createRetainingEdgesProvider', HeapSnapshotProviderProxy, nodeIndex);
}
/**
* @param {string} baseSnapshotId
* @param {string} className
* @return {?HeapSnapshotProviderProxy}
*/
createAddedNodesProvider(baseSnapshotId, className) {
return this.callFactoryMethod(
null, 'createAddedNodesProvider', HeapSnapshotProviderProxy, baseSnapshotId, className);
}
/**
* @param {!Array.} nodeIndexes
* @return {?HeapSnapshotProviderProxy}
*/
createDeletedNodesProvider(nodeIndexes) {
return this.callFactoryMethod(null, 'createDeletedNodesProvider', HeapSnapshotProviderProxy, nodeIndexes);
}
/**
* @param {function(*):boolean} filter
* @return {?HeapSnapshotProviderProxy}
*/
createNodesProvider(filter) {
return this.callFactoryMethod(null, 'createNodesProvider', HeapSnapshotProviderProxy, filter);
}
/**
* @param {string} className
* @param {!HeapSnapshotModel.HeapSnapshotModel.NodeFilter} nodeFilter
* @return {?HeapSnapshotProviderProxy}
*/
createNodesProviderForClass(className, nodeFilter) {
return this.callFactoryMethod(
null, 'createNodesProviderForClass', HeapSnapshotProviderProxy, className, nodeFilter);
}
/**
* @return {!Promise>}
*/
allocationTracesTops() {
return this._callMethodPromise('allocationTracesTops');
}
/**
* @param {number} nodeId
* @return {!Promise}
*/
allocationNodeCallers(nodeId) {
return this._callMethodPromise('allocationNodeCallers', nodeId);
}
/**
* @param {number} nodeIndex
* @return {!Promise>}
*/
allocationStack(nodeIndex) {
return this._callMethodPromise('allocationStack', nodeIndex);
}
/**
* @override
*/
dispose() {
throw new Error('Should never be called');
}
get nodeCount() {
return this._staticData.nodeCount;
}
get rootNodeIndex() {
return this._staticData.rootNodeIndex;
}
/**
* @return {!Promise}
*/
async updateStaticData() {
this._staticData = await this._callMethodPromise('updateStaticData');
}
/**
* @return {!Promise}
*/
getStatistics() {
return this._callMethodPromise('getStatistics');
}
/**
* @param {number} nodeIndex
* @return {!Promise}
*/
getLocation(nodeIndex) {
return this._callMethodPromise('getLocation', nodeIndex);
}
/**
* @return {!Promise.}
*/
getSamples() {
return this._callMethodPromise('getSamples');
}
get totalSize() {
return this._staticData.totalSize;
}
get uid() {
return this._profileUid;
}
setProfileUid(profileUid) {
this._profileUid = profileUid;
}
/**
* @return {number}
*/
maxJSObjectId() {
return this._staticData.maxJSObjectId;
}
}
/**
* @implements {ChildrenProvider}
* @unrestricted
*/
export class HeapSnapshotProviderProxy extends HeapSnapshotProxyObject {
/**
* @param {!HeapSnapshotWorkerProxy} worker
* @param {number} objectId
*/
constructor(worker, objectId) {
super(worker, objectId);
}
/**
* @override
* @param {number} snapshotObjectId
* @return {!Promise}
*/
nodePosition(snapshotObjectId) {
return this._callMethodPromise('nodePosition', snapshotObjectId);
}
/**
* @override
* @return {!Promise}
*/
isEmpty() {
return this._callMethodPromise('isEmpty');
}
/**
* @override
* @param {number} startPosition
* @param {number} endPosition
* @return {!Promise}
*/
serializeItemsRange(startPosition, endPosition) {
return this._callMethodPromise('serializeItemsRange', startPosition, endPosition);
}
/**
* @override
* @param {!HeapSnapshotModel.HeapSnapshotModel.ComparatorConfig} comparator
* @return {!Promise}
*/
sortAndRewind(comparator) {
return this._callMethodPromise('sortAndRewind', comparator);
}
}
