mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-12 14:37:50 +00:00
294 lines
10 KiB
C++
294 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla code.
|
|
*
|
|
* The Initial Developer of the Original Code is Mozilla Foundation
|
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Mounir Lamouri <mounir.lamouri@mozilla.com> (original author)
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsDOMMemoryReporter.h"
|
|
#include "nsGlobalWindow.h"
|
|
|
|
|
|
nsDOMMemoryMultiReporter::nsDOMMemoryMultiReporter()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS1(nsDOMMemoryMultiReporter, nsIMemoryMultiReporter)
|
|
|
|
/* static */
|
|
void
|
|
nsDOMMemoryMultiReporter::Init()
|
|
{
|
|
// The memory reporter manager is going to own this object.
|
|
NS_RegisterMemoryMultiReporter(new nsDOMMemoryMultiReporter());
|
|
}
|
|
|
|
static bool
|
|
AppendWindowURI(nsGlobalWindow *aWindow, nsACString& aStr)
|
|
{
|
|
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aWindow->GetExtantDocument());
|
|
nsCOMPtr<nsIURI> uri;
|
|
|
|
if (doc) {
|
|
uri = doc->GetDocumentURI();
|
|
}
|
|
|
|
if (!uri) {
|
|
nsIPrincipal *principal = aWindow->GetPrincipal();
|
|
|
|
if (principal) {
|
|
principal->GetURI(getter_AddRefs(uri));
|
|
}
|
|
}
|
|
|
|
if (!uri) {
|
|
return false;
|
|
}
|
|
|
|
nsCString spec;
|
|
uri->GetSpec(spec);
|
|
|
|
// A hack: replace forward slashes with '\\' so they aren't
|
|
// treated as path separators. Users of the reporters
|
|
// (such as about:memory) have to undo this change.
|
|
spec.ReplaceChar('/', '\\');
|
|
|
|
aStr += spec;
|
|
|
|
return true;
|
|
}
|
|
|
|
struct WindowTotals
|
|
{
|
|
WindowTotals() : mDom(0), mStyleSheets(0) {}
|
|
size_t mDom;
|
|
size_t mStyleSheets;
|
|
};
|
|
|
|
NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN(WindowStyleSheetsMallocSizeOf,
|
|
"window/style-sheets")
|
|
|
|
static void
|
|
CollectWindowReports(nsGlobalWindow *aWindow,
|
|
WindowTotals *aWindowTotals,
|
|
nsIMemoryMultiReporterCallback *aCb,
|
|
nsISupports *aClosure)
|
|
{
|
|
// DOM window objects fall into one of three categories:
|
|
// - "active" windows are currently either displayed in an active
|
|
// tab, or a child of such a window.
|
|
// - "cached" windows are in the fastback cache.
|
|
// - "other" windows are closed (or navigated away from w/o being
|
|
// cached) yet held alive by either a website or our code. The
|
|
// latter case may be a memory leak, but not necessarily.
|
|
//
|
|
// For inner windows we show how much memory the window and its
|
|
// document etc use, and we report those per URI, where the URI is
|
|
// the document URI, if available, or the codebase of the principal
|
|
// in the window. In the case where we're unable to find a URI we're
|
|
// dealing with a chrome window with no document in it (or
|
|
// somesuch), and for that we make the URI be the string "[system]".
|
|
//
|
|
// For outer windows we simply group them all together and just show
|
|
// the combined count and amount of memory used, which is generally
|
|
// a constant amount per window (since all the actual data lives in
|
|
// the inner window).
|
|
//
|
|
// The path we give to the reporter callback for inner windows are
|
|
// as follows:
|
|
//
|
|
// explicit/dom+style/window-objects/<category>/top=<top-outer-id> (inner=<top-inner-id>)/inner-window(id=<id>, uri=<uri>)
|
|
//
|
|
// Where:
|
|
// - <category> is active, cached, or other, as described above.
|
|
// - <top-outer-id> is the window id (nsPIDOMWindow::WindowID()) of
|
|
// the top outer window (i.e. tab, or top level chrome window).
|
|
// - <top-inner-id> is the window id of the top window's inner
|
|
// window.
|
|
// - <id> is the window id of the inner window in question.
|
|
// - <uri> is the URI per above description.
|
|
//
|
|
// Exposing the window ids is done to get logical grouping in
|
|
// about:memory, and also for debuggability since one can get to the
|
|
// nsGlobalWindow for a window id by calling the static method
|
|
// nsGlobalWindow::GetInnerWindowWithId(id) (or
|
|
// GetOuterWindowWithId(id) in a debugger.
|
|
//
|
|
// For outer windows we simply use:
|
|
//
|
|
// explicit/dom+style/window-objects/<category>/outer-windows
|
|
//
|
|
// Which gives us simple counts of how many outer windows (and their
|
|
// combined sizes) per category.
|
|
|
|
nsCAutoString windowPath("explicit/dom+style/window-objects/");
|
|
|
|
nsIDocShell *docShell = aWindow->GetDocShell();
|
|
|
|
nsGlobalWindow *top = aWindow->GetTop();
|
|
PRInt64 windowDOMSize = aWindow->SizeOf();
|
|
PRInt64 styleSheetsSize = aWindow->SizeOfStyleSheets(WindowStyleSheetsMallocSizeOf);
|
|
|
|
if (docShell && aWindow->IsFrozen()) {
|
|
windowPath += NS_LITERAL_CSTRING("cached/");
|
|
} else if (docShell) {
|
|
windowPath += NS_LITERAL_CSTRING("active/");
|
|
} else {
|
|
windowPath += NS_LITERAL_CSTRING("other/");
|
|
}
|
|
|
|
if (aWindow->IsInnerWindow()) {
|
|
windowPath += NS_LITERAL_CSTRING("top=");
|
|
|
|
if (top) {
|
|
windowPath.AppendInt(top->WindowID());
|
|
|
|
nsGlobalWindow *topInner = top->GetCurrentInnerWindowInternal();
|
|
if (topInner) {
|
|
windowPath += NS_LITERAL_CSTRING(" (inner=");
|
|
windowPath.AppendInt(topInner->WindowID());
|
|
windowPath += NS_LITERAL_CSTRING(")");
|
|
}
|
|
} else {
|
|
windowPath += NS_LITERAL_CSTRING("none");
|
|
}
|
|
|
|
windowPath += NS_LITERAL_CSTRING("/inner-window(id=");
|
|
windowPath.AppendInt(aWindow->WindowID());
|
|
windowPath += NS_LITERAL_CSTRING(", uri=");
|
|
|
|
if (!AppendWindowURI(aWindow, windowPath)) {
|
|
windowPath += NS_LITERAL_CSTRING("[system]");
|
|
}
|
|
|
|
windowPath += NS_LITERAL_CSTRING(")");
|
|
} else {
|
|
// Combine all outer windows per section (active/cached/other) as
|
|
// they basically never contain anything of interest, and are
|
|
// always pretty much the same size.
|
|
|
|
windowPath += NS_LITERAL_CSTRING("outer-windows");
|
|
}
|
|
|
|
if (windowDOMSize > 0) {
|
|
nsCAutoString domPath(windowPath);
|
|
domPath += "/dom";
|
|
NS_NAMED_LITERAL_CSTRING(kWindowDesc,
|
|
"Memory used by a window and the DOM within it.");
|
|
aCb->Callback(EmptyCString(), domPath, nsIMemoryReporter::KIND_HEAP,
|
|
nsIMemoryReporter::UNITS_BYTES, windowDOMSize, kWindowDesc,
|
|
aClosure);
|
|
aWindowTotals->mDom += windowDOMSize;
|
|
}
|
|
|
|
if (styleSheetsSize > 0) {
|
|
nsCAutoString styleSheetsPath(windowPath);
|
|
styleSheetsPath += "/style-sheets";
|
|
NS_NAMED_LITERAL_CSTRING(kStyleSheetsDesc,
|
|
"Memory used by style sheets within a window.");
|
|
aCb->Callback(EmptyCString(), styleSheetsPath,
|
|
nsIMemoryReporter::KIND_HEAP,
|
|
nsIMemoryReporter::UNITS_BYTES, styleSheetsSize,
|
|
kStyleSheetsDesc, aClosure);
|
|
aWindowTotals->mStyleSheets += styleSheetsSize;
|
|
}
|
|
}
|
|
|
|
typedef nsTArray< nsRefPtr<nsGlobalWindow> > WindowArray;
|
|
|
|
static
|
|
PLDHashOperator
|
|
GetWindows(const PRUint64& aId, nsGlobalWindow*& aWindow, void* aClosure)
|
|
{
|
|
((WindowArray *)aClosure)->AppendElement(aWindow);
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMMemoryMultiReporter::GetName(nsACString &aName)
|
|
{
|
|
aName.AssignLiteral("dom+style");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMMemoryMultiReporter::CollectReports(nsIMemoryMultiReporterCallback* aCb,
|
|
nsISupports* aClosure)
|
|
{
|
|
nsGlobalWindow::WindowByIdTable* windowsById =
|
|
nsGlobalWindow::GetWindowsTable();
|
|
NS_ENSURE_TRUE(windowsById, NS_OK);
|
|
|
|
// Hold on to every window in memory so that window objects can't be
|
|
// destroyed while we're calling the memory reporter callback.
|
|
WindowArray windows;
|
|
windowsById->Enumerate(GetWindows, &windows);
|
|
|
|
// Collect window memory usage.
|
|
nsRefPtr<nsGlobalWindow> *w = windows.Elements();
|
|
nsRefPtr<nsGlobalWindow> *end = w + windows.Length();
|
|
WindowTotals windowTotals;
|
|
for (; w != end; ++w) {
|
|
CollectWindowReports(*w, &windowTotals, aCb, aClosure);
|
|
}
|
|
|
|
NS_NAMED_LITERAL_CSTRING(kDomTotalWindowsDesc,
|
|
"Memory used for the DOM within windows. This is the sum of all windows' "
|
|
"'dom' numbers.");
|
|
aCb->Callback(EmptyCString(), NS_LITERAL_CSTRING("dom-total-window"),
|
|
nsIMemoryReporter::KIND_OTHER,
|
|
nsIMemoryReporter::UNITS_BYTES, windowTotals.mDom,
|
|
kDomTotalWindowsDesc, aClosure);
|
|
|
|
NS_NAMED_LITERAL_CSTRING(kLayoutTotalWindowStyleSheetsDesc,
|
|
"Memory used for style sheets within windows. This is the sum of all windows' "
|
|
"'style-sheets' numbers.");
|
|
aCb->Callback(EmptyCString(), NS_LITERAL_CSTRING("style-sheets-total-window"),
|
|
nsIMemoryReporter::KIND_OTHER,
|
|
nsIMemoryReporter::UNITS_BYTES, windowTotals.mStyleSheets,
|
|
kLayoutTotalWindowStyleSheetsDesc, aClosure);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMMemoryMultiReporter::GetExplicitNonHeap(PRInt64* aAmount)
|
|
{
|
|
// This reporter only measures heap memory.
|
|
*aAmount = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
|