mirror of
https://github.com/nodejs/node.git
synced 2025-05-19 00:47:24 +00:00
f230a1cf74
This commit removes the simple/test-event-emitter-memory-leak test for being unreliable with the new garbage collector: the memory pressure exerted by the test case is too low for the garbage collector to kick in. It can be made to work again by limiting the heap size with the --max_old_space_size=x flag but that won't be very reliable across platforms and architectures.
410 lines
14 KiB
JavaScript
410 lines
14 KiB
JavaScript
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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var Sodium = (function() {
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"use strict";
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var kinds = ["FUNCTION", "OPTIMIZED_FUNCTION", "STUB", "BUILTIN",
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"LOAD_IC", "KEYED_LOAD_IC", "CALL_IC", "KEYED_CALL_IC",
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"STORE_IC", "KEYED_STORE_IC", "BINARY_OP_IC", "COMPARE_IC",
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"COMPARE_NIL_IC", "TO_BOOLEAN_IC"];
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var kindsWithSource = {
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'FUNCTION': true,
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'OPTIMIZED_FUNCTION': true
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};
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var addressRegEx = "0x[0-9a-f]{8,16}";
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var nameFinder = new RegExp("^name = (.+)$");
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var kindFinder = new RegExp("^kind = (.+)$");
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var firstPositionFinder = new RegExp("^source_position = (\\d+)$");
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var separatorFilter = new RegExp("^--- (.)+ ---$");
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var rawSourceFilter = new RegExp("^--- Raw source ---$");
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var codeEndFinder = new RegExp("^--- End code ---$");
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var whiteSpaceLineFinder = new RegExp("^\\W*$");
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var instructionBeginFinder =
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new RegExp("^Instructions\\W+\\(size = \\d+\\)");
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var instructionFinder =
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new RegExp("^\(" + addressRegEx + "\)\(\\W+\\d+\\W+.+\)");
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var positionFinder =
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new RegExp("^(" + addressRegEx + ")\\W+position\\W+\\((\\d+)\\)");
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var addressFinder = new RegExp("\(" + addressRegEx + "\)");
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var addressReplacer = new RegExp("\(" + addressRegEx + "\)", "gi");
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var fileContent = "";
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var selectedFunctionKind = "";
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var currentFunctionKind = "";
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var currentFunctionName = "";
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var firstSourcePosition = 0;
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var startAddress = "";
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var readingSource = false;
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var readingAsm = false;
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var sourceBegin = -1;
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var sourceEnd = -1;
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var asmBegin = -1;
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var asmEnd = -1;
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var codeObjects = [];
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var selectedAsm = null;
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var selectedSource = null;
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var selectedSourceClass = "";
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function Code(name, kind, sourceBegin, sourceEnd, asmBegin, asmEnd,
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firstSourcePosition, startAddress) {
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this.name = name;
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this.kind = kind;
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this.sourceBegin = sourceBegin;
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this.sourceEnd = sourceEnd;
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this.asmBegin = asmBegin;
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this.asmEnd = asmEnd;
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this.firstSourcePosition = firstSourcePosition;
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this.startAddress = startAddress;
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}
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function getCurrentCodeObject() {
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var functionSelect = document.getElementById('function-selector-id');
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return functionSelect.options[functionSelect.selectedIndex].codeObject;
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}
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function getCurrentSourceText() {
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var code = getCurrentCodeObject();
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if (code.sourceBegin == -1 || code.sourceEnd == -1) return "";
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return fileContent.substring(code.sourceBegin, code.sourceEnd);
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}
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function getCurrentAsmText() {
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var code = getCurrentCodeObject();
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if (code.asmBegin == -1 || code.asmEnd == -1) return "";
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return fileContent.substring(code.asmBegin, code.asmEnd);
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}
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function setKindByIndex(index) {
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selectedFunctionKind = kinds[index];
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}
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function processLine(text, begin, end) {
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var line = text.substring(begin, end);
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if (readingSource) {
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if (separatorFilter.exec(line) != null) {
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readingSource = false;
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} else {
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if (sourceBegin == -1) {
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sourceBegin = begin;
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}
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sourceEnd = end;
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}
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} else {
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if (readingAsm) {
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if (codeEndFinder.exec(line) != null) {
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readingAsm = false;
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asmEnd = begin;
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var newCode =
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new Code(currentFunctionName, currentFunctionKind,
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sourceBegin, sourceEnd, asmBegin, asmEnd,
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firstSourcePosition, startAddress);
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codeObjects.push(newCode);
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currentFunctionKind = null;
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} else {
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if (asmBegin == -1) {
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matches = instructionBeginFinder.exec(line);
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if (matches != null) {
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asmBegin = begin;
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}
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}
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if (startAddress == "") {
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matches = instructionFinder.exec(line);
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if (matches != null) {
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startAddress = matches[1];
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}
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}
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}
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} else {
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var matches = kindFinder.exec(line);
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if (matches != null) {
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currentFunctionKind = matches[1];
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if (!kindsWithSource[currentFunctionKind]) {
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sourceBegin = -1;
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sourceEnd = -1;
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}
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} else if (currentFunctionKind != null) {
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matches = nameFinder.exec(line);
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if (matches != null) {
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readingAsm = true;
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asmBegin = -1;
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currentFunctionName = matches[1];
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}
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} else if (rawSourceFilter.exec(line) != null) {
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readingSource = true;
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sourceBegin = -1;
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} else {
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var matches = firstPositionFinder.exec(line);
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if (matches != null) {
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firstSourcePosition = parseInt(matches[1]);
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}
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}
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}
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}
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}
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function processLines(source, size, processLine) {
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var firstChar = 0;
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for (var x = 0; x < size; x++) {
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var curChar = source[x];
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if (curChar == '\n' || curChar == '\r') {
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processLine(source, firstChar, x);
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firstChar = x + 1;
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}
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}
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if (firstChar != size - 1) {
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processLine(source, firstChar, size - 1);
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}
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}
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function processFileContent() {
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document.getElementById('source-text-pre').innerHTML = '';
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sourceBegin = -1;
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codeObjects = [];
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processLines(fileContent, fileContent.length, processLine);
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var functionSelectElement = document.getElementById('function-selector-id');
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functionSelectElement.innerHTML = '';
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var length = codeObjects.length;
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for (var i = 0; i < codeObjects.length; ++i) {
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var code = codeObjects[i];
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if (code.kind == selectedFunctionKind) {
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var optionElement = document.createElement("option");
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optionElement.codeObject = code;
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optionElement.text = code.name;
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functionSelectElement.add(optionElement, null);
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}
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}
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}
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function asmClick(element) {
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if (element == selectedAsm) return;
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if (selectedAsm != null) {
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selectedAsm.classList.remove('highlight-yellow');
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}
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selectedAsm = element;
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selectedAsm.classList.add('highlight-yellow');
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var pc = element.firstChild.innerText;
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var sourceLine = null;
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if (addressFinder.exec(pc) != null) {
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var position = findSourcePosition(pc);
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var line = findSourceLine(position);
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sourceLine = document.getElementById('source-line-' + line);
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var sourceLineTop = sourceLine.offsetTop;
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makeSourcePosVisible(sourceLineTop);
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}
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if (selectedSource == sourceLine) return;
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if (selectedSource != null) {
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selectedSource.classList.remove('highlight-yellow');
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selectedSource.classList.add(selectedSourceClass);
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}
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if (sourceLine != null) {
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selectedSourceClass = sourceLine.classList[0];
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sourceLine.classList.remove(selectedSourceClass);
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sourceLine.classList.add('highlight-yellow');
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}
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selectedSource = sourceLine;
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}
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function makeContainerPosVisible(container, newTop) {
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var height = container.offsetHeight;
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var margin = Math.floor(height / 4);
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if (newTop < container.scrollTop + margin) {
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newTop -= margin;
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if (newTop < 0) newTop = 0;
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container.scrollTop = newTop;
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return;
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}
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if (newTop > (container.scrollTop + 3 * margin)) {
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newTop = newTop - 3 * margin;
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container.scrollTop = newTop;
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}
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}
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function makeAsmPosVisible(newTop) {
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var asmContainer = document.getElementById('asm-container');
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makeContainerPosVisible(asmContainer, newTop);
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}
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function makeSourcePosVisible(newTop) {
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var sourceContainer = document.getElementById('source-container');
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makeContainerPosVisible(sourceContainer, newTop);
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}
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function addressClick(element, event) {
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event.stopPropagation();
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var asmLineId = 'address-' + element.innerText;
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var asmLineElement = document.getElementById(asmLineId);
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if (asmLineElement != null) {
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var asmLineTop = asmLineElement.parentNode.offsetTop;
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makeAsmPosVisible(asmLineTop);
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asmLineElement.classList.add('highlight-flash-blue');
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window.setTimeout(function() {
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asmLineElement.classList.remove('highlight-flash-blue');
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}, 1500);
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}
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}
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function prepareAsm(originalSource) {
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var newSource = "";
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var lineNumber = 1;
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var functionProcessLine = function(text, begin, end) {
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var currentLine = text.substring(begin, end);
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var matches = instructionFinder.exec(currentLine);
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var clickHandler = "";
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if (matches != null) {
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var restOfLine = matches[2];
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restOfLine = restOfLine.replace(
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addressReplacer,
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'<span class="hover-underline" ' +
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'onclick="Sodium.addressClick(this, event);">\$1</span>');
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currentLine = '<span id="address-' + matches[1] + '" >' +
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matches[1] + '</span>' + restOfLine;
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clickHandler = 'onclick=\'Sodium.asmClick(this)\' ';
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} else if (whiteSpaceLineFinder.exec(currentLine)) {
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currentLine = "<br>";
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}
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newSource += '<pre style=\'margin-bottom: -12px;\' ' + clickHandler + '>' +
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currentLine + '</pre>';
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lineNumber++;
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}
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processLines(originalSource, originalSource.length, functionProcessLine);
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return newSource;
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}
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function findSourcePosition(pcToSearch) {
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var position = 0;
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var distance = 0x7FFFFFFF;
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var pcToSearchOffset = parseInt(pcToSearch);
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var processOneLine = function(text, begin, end) {
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var currentLine = text.substring(begin, end);
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var matches = positionFinder.exec(currentLine);
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if (matches != null) {
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var pcOffset = parseInt(matches[1]);
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if (pcOffset <= pcToSearchOffset) {
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var dist = pcToSearchOffset - pcOffset;
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var pos = parseInt(matches[2]);
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if ((dist < distance) || (dist == distance && pos > position)) {
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position = pos;
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distance = dist;
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}
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}
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}
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}
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var asmText = getCurrentAsmText();
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processLines(asmText, asmText.length, processOneLine);
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var code = getCurrentCodeObject();
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if (position == 0) return 0;
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return position - code.firstSourcePosition;
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}
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function findSourceLine(position) {
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if (position == 0) return 1;
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var line = 0;
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var processOneLine = function(text, begin, end) {
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if (begin < position) {
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line++;
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}
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}
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var sourceText = getCurrentSourceText();
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processLines(sourceText, sourceText.length, processOneLine);
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return line;
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}
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function functionChangedHandler() {
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var functionSelect = document.getElementById('function-selector-id');
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var source = getCurrentSourceText();
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var sourceDivElement = document.getElementById('source-text');
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var code = getCurrentCodeObject();
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var newHtml = "<pre class=\"prettyprint linenums\" id=\"source-text\">"
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+ 'function ' + code.name + source + "</pre>";
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sourceDivElement.innerHTML = newHtml;
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try {
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// Wrap in try to work when offline.
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PR.prettyPrint();
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} catch (e) {
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}
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var sourceLineContainer = sourceDivElement.firstChild.firstChild;
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var lineCount = sourceLineContainer.childElementCount;
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var current = sourceLineContainer.firstChild;
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for (var i = 1; i < lineCount; ++i) {
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current.id = "source-line-" + i;
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current = current.nextElementSibling;
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}
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var asm = getCurrentAsmText();
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document.getElementById('asm-text').innerHTML = prepareAsm(asm);
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}
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function kindChangedHandler(element) {
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setKindByIndex(element.selectedIndex);
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processFileContent();
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functionChangedHandler();
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}
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function readLog(evt) {
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//Retrieve the first (and only!) File from the FileList object
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var f = evt.target.files[0];
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if (f) {
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var r = new FileReader();
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r.onload = function(e) {
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var file = evt.target.files[0];
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currentFunctionKind = "";
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fileContent = e.target.result;
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processFileContent();
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functionChangedHandler();
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}
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r.readAsText(f);
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} else {
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alert("Failed to load file");
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}
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}
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function buildFunctionKindSelector(kindSelectElement) {
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for (var x = 0; x < kinds.length; ++x) {
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var optionElement = document.createElement("option");
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optionElement.value = x;
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optionElement.text = kinds[x];
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kindSelectElement.add(optionElement, null);
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}
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kindSelectElement.selectedIndex = 1;
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setKindByIndex(1);
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}
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return {
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buildFunctionKindSelector: buildFunctionKindSelector,
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kindChangedHandler: kindChangedHandler,
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functionChangedHandler: functionChangedHandler,
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asmClick: asmClick,
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addressClick: addressClick,
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readLog: readLog
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};
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})();
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