diff options
Diffstat (limited to 'tools/addon-sdk-1.5/packages/api-utils/lib/memory.js')
-rw-r--r-- | tools/addon-sdk-1.5/packages/api-utils/lib/memory.js | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/tools/addon-sdk-1.5/packages/api-utils/lib/memory.js b/tools/addon-sdk-1.5/packages/api-utils/lib/memory.js deleted file mode 100644 index d7c7f47..0000000 --- a/tools/addon-sdk-1.5/packages/api-utils/lib/memory.js +++ /dev/null @@ -1,114 +0,0 @@ -/* 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 {Cc,Ci,Cu,components} = require("chrome"); -var trackedObjects = {}; - -var Compacter = { - INTERVAL: 5000, - notify: function(timer) { - var newTrackedObjects = {}; - for (let name in trackedObjects) { - var oldBin = trackedObjects[name]; - var newBin = []; - var strongRefs = []; - for (var i = 0; i < oldBin.length; i++) { - var strongRef = oldBin[i].weakref.get(); - if (strongRef && strongRefs.indexOf(strongRef) == -1) { - strongRefs.push(strongRef); - newBin.push(oldBin[i]); - } - } - if (newBin.length) - newTrackedObjects[name] = newBin; - } - trackedObjects = newTrackedObjects; - } -}; - -var timer = Cc["@mozilla.org/timer;1"] - .createInstance(Ci.nsITimer); - -timer.initWithCallback(Compacter, - Compacter.INTERVAL, - Ci.nsITimer.TYPE_REPEATING_SLACK); - -var track = exports.track = function track(object, bin, stackFrameNumber) { - var frame = components.stack.caller; - var weakref = Cu.getWeakReference(object); - if (!bin) - bin = object.constructor.name; - if (bin == "Object") - bin = frame.name; - if (!bin) - bin = "generic"; - if (!(bin in trackedObjects)) - trackedObjects[bin] = []; - - if (stackFrameNumber > 0) - for (var i = 0; i < stackFrameNumber; i++) - frame = frame.caller; - - trackedObjects[bin].push({weakref: weakref, - created: new Date(), - filename: frame.filename, - lineNo: frame.lineNumber, - bin: bin}); -}; - -var getBins = exports.getBins = function getBins() { - var names = []; - for (let name in trackedObjects) - names.push(name); - return names; -}; - -var getObjects = exports.getObjects = function getObjects(bin) { - function getLiveObjectsInBin(bin, array) { - for (var i = 0; i < bin.length; i++) { - var object = bin[i].weakref.get(); - if (object) - array.push(bin[i]); - } - } - - var results = []; - if (bin) { - if (bin in trackedObjects) - getLiveObjectsInBin(trackedObjects[bin], results); - } else - for (let name in trackedObjects) - getLiveObjectsInBin(trackedObjects[name], results); - return results; -}; - -var gc = exports.gc = function gc() { - // Components.utils.forceGC() doesn't currently perform - // cycle collection, which means that e.g. DOM elements - // won't be collected by it. Fortunately, there are - // other ways... - - var window = Cc["@mozilla.org/appshell/appShellService;1"] - .getService(Ci.nsIAppShellService) - .hiddenDOMWindow; - var test_utils = window.QueryInterface(Ci.nsIInterfaceRequestor) - .getInterface(Ci.nsIDOMWindowUtils); - test_utils.garbageCollect(); - Compacter.notify(); - - // Not sure why, but sometimes it appears that we don't get - // them all with just one CC, so let's do it again. - test_utils.garbageCollect(); -}; - -require("./unload").when( - function() { - trackedObjects = {}; - if (timer) { - timer.cancel(); - timer = null; - } - }); |