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;
}
}
static void
CollectWindowReports(nsGlobalWindow *aWindow,
nsWindowSizes *aWindowTotalSizes,
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/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/window-objects/<category>/outer-windows
//
// Which gives us simple counts of how many outer windows (and their
// combined sizes) per category.
nsCAutoString windowPath("explicit/window-objects/");
nsIDocShell *docShell = aWindow->GetDocShell();
nsGlobalWindow *top = aWindow->GetTop();
nsWindowSizes windowSizes(DOMStyleMallocSizeOf);
aWindow->SizeOfIncludingThis(&windowSizes);
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");
}
#define REPORT(_path1, _path2, _amount, _desc) \
do { \
if (_amount > 0) { \
nsCAutoString path(_path1); \
path += _path2; \
aCb->Callback(EmptyCString(), path, nsIMemoryReporter::KIND_HEAP, \
nsIMemoryReporter::UNITS_BYTES, _amount, \
NS_LITERAL_CSTRING(_desc), aClosure); \
} \
} while (0)
REPORT(windowPath, "/dom", windowSizes.mDOM,
"Memory used by a window and the DOM within it.");
aWindowTotalSizes->mDOM += windowSizes.mDOM;
REPORT(windowPath, "/style-sheets", windowSizes.mStyleSheets,
"Memory used by style sheets within a window.");
aWindowTotalSizes->mStyleSheets += windowSizes.mStyleSheets;
REPORT(windowPath, "/layout/arenas", windowSizes.mLayoutArenas,
"Memory used by layout PresShell, PresContext, and other related "
"areas within a window.");
aWindowTotalSizes->mLayoutArenas += windowSizes.mLayoutArenas;
REPORT(windowPath, "/layout/style-sets", windowSizes.mLayoutStyleSets,
"Memory used by style sets within a window.");
aWindowTotalSizes->mLayoutStyleSets += windowSizes.mLayoutStyleSets;
REPORT(windowPath, "/layout/text-runs", windowSizes.mLayoutTextRuns,
"Memory used for text-runs (glyph layout) in the PresShell's frame "
"tree, within a window.");
aWindowTotalSizes->mLayoutTextRuns += windowSizes.mLayoutTextRuns;
#undef REPORT
}
